27847840 distance protection utility main protection for transmision lines
TRANSCRIPT
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Distance Protection --- JAVED 1
DISTANCE PROTECTION
UTILITY MAIN TRANSMISSION LINE PROTECTION
(S.R. Javed Ahmed)
INTRODUCTION
Distance protections have been used universally as Short circuit Protection for almost all MV to UHV AC
Transmission lines.
In the past it was the only type of Protection used for Long EHV Overhead Transmission Lines.
This Protection was introduced in early 1920’s and has undergone continuous enhancement ever since. It is
applicable for radial lines as well as interconnected network system of lines.
Application of Differential Protection in the past was restricted due to analog technology coupled with length of
the Transmission line. For Short to medium length lines, however, Distance Protection along with Differential
Protection was best solution.
In a classical Transmission system, the Distance Protection works by utilizing the fact that the measured
Impedance from a point is directly proportional to the distance from it (which gave its name). This Protection
measures the Short circuit Impedance at its location and operates by comparing it with the setting impedance.
It is also used occasionally for protecting equipment with large inductive reactance like Power Transformers,
Shunt Reactors, Generators, and Unit Transformers. It is also useful in systems with huge variation in fault levels
from maximum to minimum where traditional Over current Protections are not quite successful.
Distance relays have undergone continuous development. Distance Protections have transformed from early
relays with Induction Disk elements to moving coil technology then to static relays with operation Amplifiers,
static electronic PCBs to Microprocessor based static with numerous discrete static electronic PCBs to fully
microprocessor based Numerical with DSPs and finally to present day digital IEDs with numerical filters,
conversion, storing & computation….and near future to Distance Protection IEDs with total automation down to
individual Logical node level with digital CT & VT connected to process bus of a typical total Automation system.
Numerical devices with advances in digital technology (A/D converters, digital filters, storing & processing data)
have become more intelligent and adaptive to system and have introduced new concepts and features like
events, disturbance & fault recording along with GPS signal reference.
I, like many Protection Engineers, am lucky enough (is it!!) to have worked with all types of Distance protections
right from early days, over the years. Wondering with awe (during early days of my career as protection
Engineer) at huge Electro-mechanical Phase distance relays, Ground distance relays in so many schemes both
switched, non switched and in combined hard wired zone-based/full-zone schemes along with scores of
ancillary devices associated with Power line carrier aided schemes.
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Distance Protection --- JAVED 2
PROBLEMS ASSOCIATED WITH DISTANCE PROTECTIONS
From Utility Protection engineers’ point of view, the Distance Protection is the most dreaded of all Protections!!!
Right from the day of its birth, Distance Protection never stopped giving surprise problems. No matter how hard
you worked, calculated meticulously, something or the other goes wrong.
Different types of faults need different voltage & current inputs and measures different loop impedances, uses
different principles, meaning more components. Problems associated with fault resistance, transients in VT
circuits (CVTs), power swings, load encroachment, in-feeds, current reversals etc
It often puts the Utility Protection Engineers in highly embarrassing situations by tripping when it should not and
failing to trip when it is required to trip. More often it leads to huge hours spent in testing, fault analysis,
sequence of events analysis and not to mention preparing disturbance/fault & …problem-solution reports to
satisfy the ‘guys above’ ...bear in mind …it shall not repeat such an incident after a solution proposed by the
Protection Engineer is implemented!!!..to avoid a wrath....There are ‘baddie Guys’ (non-technical sort of guys
with loud mouth and well paid!!!) who just keep statistical records of ‘mal-operation, reason, date by date, line
by line’….will promptly come with a list…after another event!!! ….ok, ok, just joking…(psst…it is a fact more
often)
Worst scenario like ‘Total Blackouts’ and multiple events create havoc in the Utility and everybody right from a
shift Power Dispatcher to a ‘BIG’ Customer breaths fire…but Protection Engineer is often protected by his sound
technical knowledge….he..he…and often has last laugh.
Occasionally, it also puts the Protection Manufacturer’s Product design Engineers under constant demand of
improvement…..sometimes leads to Utilities blacklisting his product…until revised product comes out…only to
be caught again by another different incident…..it is a cycle. That’s why Distance Protection has undergone most
developments over the years compared with other protections.
A real distance protection setting nightmare problem for you…..a newly constructed Substation with about 19
(EHV & HV) lines connecting to it (major substation with two large Power Plants as main feed and heavy
interconnection from other two major power plants)…due to right of way and terrain, all lines were running
parallel for few 10s of kilometers. .. some lines were also JUST Parallel unrelated with the new substation but
interconnecting some existing EHV substations (some weak, some strong, different positive sequence sources
and zero sequence sources, with different direction of currents during fault and different level of coupling some
positive some negative)……no communication aided scheme due to terminal MUX not ready….When the
substation & Power plant was ready, most of the remote EHV Substations were not ready yet….The ‘big guys’
issued ultimatum to energize ‘some of the lines’ which were ready and run the power plant...you guessed
it…yes, that’s it … most of the parallel lines were open and grounded at both ends....now go and set the Distance
protection with optimum zero-sequence mutual impedance…and must cover at least half line length….EHV lines
with four bundle conductors….no impedance calculation software can solve so many parallel lines with bundle
conductors….remember, no false operation is allowed!!!!!..to top it all, humid & saline atmosphere in
desert….high resistivity grounds….. Well that’s challenging
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Distance Protection --- JAVED 3
SOLUTION AT LAST?
Fault loop impedances often fall in many zone reaches of Distance protection. To facilitate positive operation of
communication aided schemes, it is sometimes essential to set over-reaching zone considerable larger than the
line. Such settings with parallel lines, carrying huge power may cause un-faulted loop impedances to fall within
reach of a healthy parallel line at one end and correct faulted impedance loop reach at other end of healthy line.
In such a case, when common non-segregated phase communication is used, may result in tripping of healthy
line and faulted line.
In the past, due to analog technology, Protection Engineers were bound by the limitation of Line Differential
Protection. Finally there is relief to Protection Engineer… With the Numerical Technology in Protection coupled
with High-density, high-speed digital Telecommunication, and GPS clock signaling for public use, finally Line
Differential has become most suitable protection with Distance as a back-up (line length is no more a limitation
for Differential Protection)….Or is it? Distance Protection is still indispensible, no matter what, is still complex as
it was… it has to deal with many zones and has to calculate impedances for each phase-phase & phase-earth
loop on per zone basis and produce its final output as fast as ½ a cycle in a phase selective manner. Large
parallel Processors are required to perform measurement and all tasks within the required speed limit. This
requires more demand on processing.
Software, it is.
Unlike, earlier generation Protection Product Designers, new generation Protection Product designers are with
more software based knowledge compared with electrical technology based knowledge. Thereby, keep adding
feature after feature to the Protection to solve all known problems. Well, their job is done happy lot….they
are….software guys.
Now the product lands with Utility Protection Engineer to set the protection. Each and every setting value is
with selectable value and huge range!!! …and hundreds of parameters per protection….and tens of different
functions!!!
Earlier generation product design engineers were limited by static components and hence scheme settings were
more or less fixed. Product manufacturer was solely responsible for the proper operation of Protection. Now the
table has turned around, Protection Engineer has to set few hundreds of parameters each selectable in a huge
range. Again Protection Engineer is under stress. He must deal with Electrical system knowledge as well as every
manufacturer’s relay manual (to make matter worse every manufacturer has own algorithm and way of
approach). A single setting error out of thousand setting parameter might cause embarrassment to him
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GENERAL AREAS OF INTERST IN REGARD TO A DISTANCE PROTECTION:
Distance Protection has some disadvantages when compared with a Line Differential Protection. Following
points list out some points of interest in regard to a Distance Protection.
1. NEED FOR VOLTAGE INPUT: Distance Protection requires Voltage inputs (e.g. CVT, EMVT etc) in
addition to the Current inputs.
2. Fuses failed or removed: Loss of VT input or VT secondary fuses removed causes Distance Protection to
get blocked or false operate. Mho type Distance protection with no offset finds the impedance locus at
the origin of R-X plane (non-operative). Line energized without VT fuses will leave the relay without any
reference pre-fault voltage. Fuse/VT circuit supervision schemes are almost always applied in all
Distance Protection based on different principles (often dedicated external relays/high-speed auxiliary
contacts of MCB/Fuse are used additionally).
3. LOSS DIRECTIONALITY or FAILURE TO OPERATE: Distance Protection determines the direction of fault
based on the Voltage as well as current inputs (which is dependent on the phase angle between the
two). A close-in 3-phase fault removes the reference voltage which is required for directionality.
This aspect is a major drawback since a close-in fault (with small voltage signal and large noise signal
superimposed) may cause it to become non-operative or lose direction discriminating ability (to
determine a fault whether forward or backward). Most relays or schemes are provided for detection of
these ‘Zero-Volt’ faults.
4. REACH ERROR (OVER/UNDER REACHING): Distance Protection is non-unit type protection with its
boundary depends on system dynamics. Where as a Line Differential Protection is a Unit type
Protection with fixed boundary. Pre-fault load flow, errors in inputs (CTs, VTs), errors in impedance
values, errors due to earth fault loop impedance, condition of parallel line (open at at least one end or
grounded at both ends), zero-sequence mutual coupling, taps on the line etc cause the relay to
measure wrong impedance compared to actual with respect to location.
5. POWER SWINGS: With sources at both ends of a line, Distance Protections are often affected by Power
swings. Being a function of Voltage, Current & the angle between the two, Power swings cause the
same impedance which the Distance protection calculates to vary as a function of three parameters.
During a fault the impedance changes suddenly. While during a swing it changes slowly as two ends
respond based on stored energy interchange (mechanical/electrical) and associated fast acting control
systems.
6. Presence of series capacitor in compensated EHV line: Capacitive reactance being opposite in sign to
an Inductive reactance on which a distance relay reach is normally set. Thereby, the voltage & currents
measured by the relay depends on the amount of involved L & C up to the fault makes the relay
measure incorrect distance (impedance of line).
7. HIGH-SPEED DISTANCE Protection: As the distance Protection of EHV line (due to system stability
requirement) needs to be very fast, it is called up on to operate when the transients & dc components
in the primary system are at highest level. Most Distance relays require fundamental frequency voltage
& currents for determination of direction as well as impedance. When the fundamental component is
small compared to the dc & harmonic component, relay measures incorrect impedance &/or direction.
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Distance Protection --- JAVED 5
Electromechanical relays, being slower were not as much affected as numerical relays (due to speed at
which the decision is to be made is well inside initial transient period for high-speed numerical relays).
This imposes increased demand on performances of CTs and VTs. CVTs (or CCVTs), due to the involved
L-C circuit introduces additional transients in the secondary signals (causing secondary voltages
different from actual primary system voltage). IEC60044 introduced additional accuracy classes for CTs
& CVTs transient performances for high-speed relays. In case of Auto-reclosing, unidirectional flux in CT
due to fault before auto-reclosing and its decay over the dead time (due to decaying secondary
current) introduces additional requirement on the CT performance.
8. Fault Resistance: Fault loops normally involve a component of resistance unless it is solid fault. That
component is most times difficult to predict. Even though a distance protection is set on the basis of
reactance, fault resistance will have an effect on overall characteristics of the distance protection as
the load impedance in parallel to the fault impedance or source impedance parallel to the fault
resistance causes the reactance line to tilt causing some under/over reaching problem depending on
the location of load (in the direction of line or reverse as seen by the relay).
9. Residual compensation: Distance relay reaches are set based on positive sequence impedances.
However, a fault with earth involved will bring the zero sequence component of impedance. More
often the residual current obtained by adding phase currents (Ia, Ib & Ic) are not same as actual 3I0
(earth fault current) at the relay location. This mismatch is due to the source of zero sequence current
may be from different equipment (example a Y-grounded /D transformer or a Zig-Zag Transformer.
Secondly, the earth fault loop zero sequence impedances may not be linear all along the length. This
component is necessary to be considered. Again, based on the parallel line current & or depending on
whether parallel line is grounded at both ends or not makes this zero sequence component to either
increase or decrease. Distance relay measures incorrectly in such cases.
10. Cables are not welcome: For the same reason as the zero sequence compensation, an EHV cable being
designed with armor, sheath etc which always provide a metallic return path unlike an Overhead line.
Thus the zero sequence impedance becomes lesser than the positive sequence impedance. This calls
for negative compensation for earth faults, which becomes non practical.
11. Measured Impedances: Most often line impedances used for relay setting are not accurate. Most of
the times are assumed based on existing similar circuit. These assumed parameters of R, X
(positive=sequence, zero-sequence & and mutual) are not accurate. Self impedance of line will be
symmetrical & correct, but all other components are unsymmetrical (depends on the location of phases
with each other & above the earth). Settings are made only based on symmetrical values. For more
accurate impedances, each phase and each line is required to be measured (considered with/without
ground) to accurately estimate down to small percentage error of 3-4% of total error. Again, 5% error
for 300km line is like 15km error in fault location. To find a permanent fault in
rough/uninhibited/hostile area over huge distance of uncertainty is definitely not acceptable in many
cases.
12. Measuring loops: Faults in power systems generally fall in to two categories namely Short circuits
(Shunt faults) or Open circuits (Series faults). Short circuit themselves are with or without ground
involved. In all eleven types of faults occur…phase-phase (three..AB, BC & CA), phase-Earth (three…A-G,
B-G & C-G). Phase-phase-earth (three…AB-G, BC-G, CA-G), 3phase-G and solid 3-phase. Most common
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Distance Protection --- JAVED 6
are Ph-G type in HV/EHV overhead systems. 3-phase faults are rarest in EHV systems due to large
clearances. Distance relay measures six measuring loops (three phase-phase & three phase-earth
loops). A Solid Three phase fault involves straight forward symmetrical calculation and fastest of all in
terms of computation time. Most complex is phase-phase-earth. Most Distance protections face
problems in these fault computation.
13. Characteristics: Distance Protection characteristics come in all shapes. Earliest electro-mechanical ones
were with simple circle (center at the origin) & straight line. These were easiest to construct with the
use of electromagnetic. Inherently they were non-directional (all working either as under or over a
setting value). With slight modification to the operating & restraining inputs, Mho circle came into
existence and has been the most common and easiest to achieve. Mho characteristics are fastest as
require one computation only. As the line length increases, Mho circle became quite large to reach to
heavy loads. This lead to clipping it with another characteristic. With static technology, a resistance
characteristic was used as it needs a solution of straight line in addition to a mho circle. With Numerical
relays, some manufacturers developed special characteristics which is applicable to a particular load
power factor limit. Each characteristic has its own merits and demerits.
14. Short line-Long line: There are two points on the Distance protection characteristics which are of
extreme importance and all distance protections are judged based on its performance at these two
points. One of them is the origin in R-X plane (relay location) and other one is the Zone-1 reach point.
These two points represent the Distance protection boundaries for instantaneous trip. The point at the
origin is close-in fault (either forward or reverse). A close in fault is important as an instantaneous
distance protection has to be stable on a reverse fault but must operate for a forward fault. The
currents could be quite large in a close-in but the voltage is zero (in extreme case of solid fault).
Without voltage signal it is not possible to determine the fault direction (whether forward or reverse).
Secondly, fault at zone-1 reach is very critical in terms of stability. Zone-1 reach is ‘definite point on the
protected line’ (even if errors added like CT/VT errors and impedance error, zone-1 reach point never
go to next line/equipment at remote substation). As the line length decreases the voltage at the relay
location during a zone-1 reach fault gets smaller. In extremely short line, the voltage becomes
significantly short to allow distance protection to operate accurately.
As per standards (ANSI), the Transmission line is categorized as short, medium or long based on the
system impedance ratio (SIR). SIR is the ratio of source impedance (Zs) to line impedance (Zl) at the
relay location *i.e. SIR = Zs/Zl+. A Short line is a line with SIR ≥4. Medium line is a line with SIR value
which lies between 0.5 & 4. A long line is with SIR ≤0.5. Thus, a short line may be a considerable longer
in actual length but has weak source (large Zs) making Zs/Zl larger than 4. The voltage signal available
at the relay location during a fault decreases as the source gets weaker (within time shorter than
exciter response). A limit will be reached for any distance protection with reduced voltage at relay
location for a zone-1 fault to be reliable as a function of SIR. In these extreme short line cases, distance
protection becomes non operative. Further, the CT needs to be of higher quality for preventing
harmonics introduced in the secondary current (harmonic components are filtered out by the filters
making lesser fundamental current signal for relay measurement….causing the relay to incorrectly
measure the distance as larger than zone reach---under reaching occurs).
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Well, some sources of trouble for a Distance protection are seen as above. There are lots more based on
the communication schemes.
Most of the problems mentioned above are not applicable to Line differential Protection. Line Differential
Protection, however, has more serious problem associated with it than the Distance protection. It is the
requirement of phase current from remote end without addition of time delay to the local measured
current. If communication fails, differential protection totally fails unlike a distance protection (which can
work as a plain step distance protection as a backup). Some form of backup is always essential in a
differential protection. As the line length becomes significant, the demand on the communication system
speed becomes critical in a differential protection. And some communication media like a Power line carrier
(PLC) is never applied to a line protection (since the signal loss or distortion is due to the loss/problem with
wave guide (the faulted line itself!)…so when it is really required to operate it is distorted!!!! Lastly,
charging current flowing into line but not leaving it (this can happen at one end or both ends…based on
…where there is source) will conflict with fundamental of line differential protection which is based on
principle that current always enters and leaves the line when not faulted. This becomes enormous value in
long EHV systems and long cables. Sometimes, steady state charging current (sine) is larger than minimum
fault current, making the line differential insensitive to faults. To compensate for the charging current, a VT
signal is required (at one or both ends based on the source) and knowledge of positive & zero sequence
capacitance of the protected circuit.
Thanks to Numerical software guy….he puts Differential protection with built in distance protection in
it…without much addition to hardware (other than VT input).
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TRADITIONAL DISTANCE PROTECTIONS
Different principles were adopted for making distance protection based on the operating philosophies.
Historically, Static Distance protections were two types. These are Full scheme & switched schemes. A Full
scheme generally had six measuring loops for each zone. A switched scheme consists of one measuring
element per zone with inputs switched (based on type of fault as detected by some means of fault detection
scheme). Phase to earth faults require faulted phase voltage and phase current for computation. Phase to
phase requires delta voltages & delta currents (vector difference).
Rectified Bridge comparator was used by German manufacturers with Isc (short circuit current in secondary at
relay location) as operating input and Usc/R as restraining input (where Usc is short circuit loop voltage at relay
location & R is set replica impedance reach in secondary ohms). The relay operates when operating quantity
exceeds the restraining quantity. Relay boundary at zone reach is where two quantities are equal and origin is
where Usc is zero [Operation occurs when Isc > Usc/R]
Electromechanical Distance Protections due to hard wired schemes, were built as separate units one for each
type of fault and per zone. To achieve total protection, three phase-phase distance protections, three phase-
earth distance protections were used per zone with electromagnetic operation. Thus an EHV line used to have
18 units of discrete devices mounted on the panels along with ancillary for out of step blocking, communication
schemes.
Ferraris Induction cup relays were used in the US for electromechanical distance protection with Isc producing
the operating flux, Usc producing the restraining flux and a polarizing flux produced by shifted Usc. Since the
torque due to interaction of operating & restraining fluxes act on opposition on the induction cup, polarizing
flux is essential to cause rotation of cup. *operation occurs when (Usc x Isc x cos (ф-ѳ)) is ≤ (Usc²/R)
In some analog static distance measurement, angle comparison (phase) was most commonly used. Mho circle
is produced by measuring the angle between two quantities….angle between differential voltage (Isc x R – Usc)
and Usc.
Various Distance Tele-protection schemes were commonly used like Permissive (over & under reaching)
schemes, blocking schemes and accelerating schemes. Choice of scheme was based on available
communication system, most of the time and was hard wired for a particular scheme including the
communication system interfaces, channels, frequency, band width etc. Various media like Microwave, PLC,
audio-tone/voice etc were used. There was distance related errors involved. With the advancement in cheaper
optical fiber technology for digital signaling, high-speed communications become reality. Overhead metallic
ground wires are gradually replaced with metallic ground wires with optical fibers within the core (OPGW,
optical ground wire). Optical fiber communication opened up newer areas due to Higher band width and speed
and technology. Synchronous digital communication with higher bit rates like gigabits made possible extremely
reliable communication system (in addition features like packet based add/drop, ring topography made system
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self heal in event of loss of signals). Distance protection unlike differential protection requires only ‘GO/NO-GO’
status transmission and extreme accuracy is possible (line differential requires phase currents each with
specific time stamp).
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NUMERICAL DISTANCE PROTECTION
Modern Numerical Distance protections are multifunction devices with discreet signal processing and
numerical computation. These have numerical filter algorithm to reject non-fundamental components in signal
inputs. Furthermore, three single-phase communication aided schemes become reality which fundamentally
removed errors due to incorrect fault loops used in direction comparison at two ends. Selectivity, speed,
sensitivity and reliability increased.
Definition of Numerical Distance Protection:
A Numerical Distance Protection is a Distance Protection which utilizes microprocessor technology and analog
to digital conversion of measured currents & voltages and computes the distance.
Most Numerical distance protections have additional time domain based calculations (high-speed) to
complement frequency domain calculations.
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DISTANCE MEASUREMENT
DEVICE NUMBER:
Distance Protections, like most other relays are secondary system connected devices. ANSI/IEEE device number
21 is assigned for it. Additional letter may be added to it to distinguish a phase & ground distance protection
such as 21P & 21N respectively. There is no hard and fast rule as to which letter is added after 21 as long as it is
mentioned as abbreviation in respective drawings/documents where it is used.
SECONDARY IMPEDANCES:
Most Distance Protections require settings in terms of Secondary impedances (Zsec).
Secondary impedance (Zsec) can be calculated from primary impedance (Zprim) as below:
Zsec = Zprim x (CTR/PTR) = Zprim x k
Where;
CTR is CT ratio used (= Iprim/Isec); Iprim & Isec are CT rated primary & secondary currents at used tap
PTR is PT ratio used (Uprim/Usec); Uprim & Usec are PT rated primary & secondary voltages at used tap
Example:
A system with 115/0.115kV PT Ratio and 1000/1A CT ratio returns k as = (115/0.115)/(1000/1) = 1000/1000 = 1
And hence Zsec = Zprim in this case
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Impedance diagram:
An impedance diagram is a graphical tool used to evaluate a distance protection. It has R & X axis (resistance &
reactance) with zero at the origin and four quadrants. First quadrant with R, X positive and so on….
This diagram indicates the relay location as at the origin (reference) source impedance below and line
impedance above R- axis.
Figure below shows a Distance protection (GE-D60) with three zones in R-X plane. R-axis is horizontal & X is
vertical axis). A Load region is also seen on the same plot. Various phase & earth Faults are marked in the
diagram also. The points within the circles indicate the zone which operates. Zone-1 in this case is smallest
circle, next larger is zone-2 followed by largest zone-3. It can be seen that a point within zone-1 also happens to
be in zone-2 & zone-3 (meaning all three zones pickup for that fault)
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Rabai-Galu 21N Type=D60G__CTR=600 PTR=1200 Zone 1: Z=8.38 sec Ohm @ 80.0 deg. T=0.0sZone 2: Z=15.61 sec Ohm @ 80.0 deg. T=0.3sZone 3: Z=29.24 sec Ohm @ 80.0 deg. T=1.0sLine Z= 10.48@ 80.0 sec Ohm ( 20.96 Ohm)More details in TTY window.
Rabai-Galu 21P Type=D60P__CTR=600 PTR=1200 Zone 1: Z=8.38 sec Ohm @ 80.0 deg. T=0.0sZone 2: Z=15.61 sec Ohm @ 80.0 deg. T=0.3sZone 3: Z=29.24 sec Ohm @ 80.0 deg. T=1.0sLine Z= 10.48@ 80.0 sec Ohm ( 20.96 Ohm)
FAULT DESCRIPTION:See table in TTY window.
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Basically, two types are characteristics are used In a modern Distance protection. They are Mho circle and a
polygon (quadrilateral).
Mho circle is a circle with diameter same as the setting reach. Two ends of a Mho circle diameter being the
origin & zone reach. Since the close-in fault happens to be at the origin, Mho circle is non-operative at that
point (zero voltage at the fault). In order to cover that point, healthy phase voltage is used in some relays
(which is rotated to the faulted phase angle) as polarizing voltage. These are called cross polarized mho circles.
Advantage of cross polarization is additional resistance coverage as the diameter increases with origin shifted
in to third quadrant. There are partial cross polarized and fully cross polarized Mho circles. These are helpful for
faults other than 3-phase solid faults. In case of 3-phase solid faults all three phase voltages becomes zero and
hence makes distance protection non-operative. Some means of pre-fault voltage (from stored memory) is
normally used. In static relays, the amount of memory was limited to few cycles.
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Most of modern Pilot schemes use digital technology and Fiber optic media Traditional PLC scheme is as below:
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Distance Protection --- JAVED 22
CRITICAL SETTINGS:
Two Zone reaches are of important for protecting a Transmission line. These are Zone-1 & Zone-2.
Setting both zone-1 & zone-2 reach is a critical item for a Protection Engineer. Once these two zones are set
correctly, the line is protected.
It is important to see that in case of lines with sources at both ends Zone-1 shall overlap. This means at least
more than half line is covered in zone-1 at both ends to have instantaneous tripping at both ends.
In case of radial line, without any parallel line, zone-1 can be longer if it feeds single line or equipment at
remote end.
Zone-1 is usually set somewhere between 80 & 85 % of the line impedance. Balance of line must be covered in
Zone-2. Thus Zone-2 must cover at least 120% in all cases.
It works well for phase faults. But with earth fault, the loop impedance comprises of all three sequence
impedances in series with Zero sequence impedance affected by the mutual coupling with parallel line. With
parallel line grounded at both ends, the net zero sequence impedance gets reduced due to mutual coupling as:
Z0act = Z0act –(Z0m²/Z0act); where Z0act is actual zero sequence impedance and Z0m is zero-sequence
mutual impedance.
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Distance Protection --- JAVED 23
ZONE-1:
It turns out that sometimes Z0act gets so small that zone-1 becomes too short to overlap the remote end zone-1.
For a phase to ground fault the loop impedance is = (Z1+Z2+Z0)/3; where Z1=Z2 for a Transmission line]. A
Distance relay set based on Z1 (positive sequence impedance) will measure phase to ground fault the loop
impedance as = Z1 + (kn xZ1); where Kn is earth fault compensation factor given by kn = (Z0-Z1)/(3 x Z1)
From the phase to ground faulted voltage e.g. Va (in case of phase A fault to ground) and phase A current Ia,
the relay compares quantity Va/Ia with set reach of [Z1set x (1+kn)]. Relay operates if Va/Ia is less than [Z1set x
(1+kn)]
To avoid over reaching zone-1, kn is set smaller based on Z0act (affected due to Z0m; mutual).
It is required therefore, to have Z1set x (1+kn) always more than 50% of total line [(Z1+Z2+Z0)/3]
If this becomes less than 50%, it is preferred to have line differential protection or another scheme based
distance protection like pilot scheme to cover all points on the line.
ZONE-2:
When used as backup zone for line must cover 120% in the worst case. If next line happens to be too short,
then Zone-2 with 120% setting may over reach zone-2 of the next line at the remote end. Zone-2 in this case
will mis-coordinate with second line zone-2 at remote end substation. Additional time delay may become
necessary to discriminate between two Zone-2 reaches.
When the line has a tap load, and sources at both ends, the infeed current from remote end causes the reach
to become under reaching.
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Distance Protection --- JAVED 24
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Distance Protection --- JAVED 26
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Distance Protection --- JAVED 27
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Distance Protection --- JAVED 28
SOME LITERATURES ON DISTANCE PROTECTION
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Distance Protection --- JAVED 31
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Distance Protection --- JAVED 32
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Distance Protection --- JAVED 34
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Distance Protection --- JAVED 38
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Distance Protection --- JAVED 46
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Distance Protection --- JAVED 47
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Distance Protection --- JAVED 49
FUNDAMENTALS OF LINE PROTECTION- LITERATURE
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Distance Protection --- JAVED 55
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Distance Protection --- JAVED 56
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Distance Protection --- JAVED 57
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Distance Protection --- JAVED 68
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Distance Protection --- JAVED 90
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Distance Protection --- JAVED 100
MORE ON DISTANCE PROTECTION
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Distance Protection --- JAVED 111
![Page 112: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/112.jpg)
Distance Protection --- JAVED 112
![Page 113: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/113.jpg)
Distance Protection --- JAVED 113
![Page 114: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/114.jpg)
Distance Protection --- JAVED 114
![Page 115: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/115.jpg)
Distance Protection --- JAVED 115
![Page 116: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/116.jpg)
Distance Protection --- JAVED 116
![Page 117: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/117.jpg)
Distance Protection --- JAVED 117
![Page 118: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/118.jpg)
Distance Protection --- JAVED 118
![Page 119: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/119.jpg)
Distance Protection --- JAVED 119
![Page 120: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/120.jpg)
Distance Protection --- JAVED 120
![Page 121: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/121.jpg)
Distance Protection --- JAVED 121
![Page 122: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/122.jpg)
Distance Protection --- JAVED 122
![Page 123: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/123.jpg)
Distance Protection --- JAVED 123
![Page 124: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/124.jpg)
Distance Protection --- JAVED 124
![Page 125: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/125.jpg)
Distance Protection --- JAVED 125
![Page 126: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/126.jpg)
Distance Protection --- JAVED 126
![Page 127: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/127.jpg)
Distance Protection --- JAVED 127
![Page 128: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/128.jpg)
Distance Protection --- JAVED 128
![Page 129: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/129.jpg)
Distance Protection --- JAVED 129
![Page 130: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/130.jpg)
Distance Protection --- JAVED 130
![Page 131: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/131.jpg)
Distance Protection --- JAVED 131
![Page 132: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/132.jpg)
Distance Protection --- JAVED 132
![Page 133: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/133.jpg)
Distance Protection --- JAVED 133
![Page 134: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/134.jpg)
Distance Protection --- JAVED 134
![Page 135: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/135.jpg)
Distance Protection --- JAVED 135
![Page 136: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/136.jpg)
Distance Protection --- JAVED 136
![Page 137: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/137.jpg)
Distance Protection --- JAVED 137
![Page 138: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/138.jpg)
Distance Protection --- JAVED 138
![Page 139: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/139.jpg)
Distance Protection --- JAVED 139
![Page 140: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/140.jpg)
Distance Protection --- JAVED 140
![Page 141: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/141.jpg)
Distance Protection --- JAVED 141
![Page 142: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/142.jpg)
Distance Protection --- JAVED 142
![Page 143: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/143.jpg)
Distance Protection --- JAVED 143
![Page 144: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/144.jpg)
Distance Protection --- JAVED 144
![Page 145: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/145.jpg)
Distance Protection --- JAVED 145
![Page 146: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/146.jpg)
Distance Protection --- JAVED 146
![Page 147: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/147.jpg)
Distance Protection --- JAVED 147
![Page 148: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/148.jpg)
Distance Protection --- JAVED 148
![Page 149: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/149.jpg)
Distance Protection --- JAVED 149
![Page 150: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/150.jpg)
Distance Protection --- JAVED 150
![Page 151: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/151.jpg)
Distance Protection --- JAVED 151
![Page 152: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/152.jpg)
Distance Protection --- JAVED 152
![Page 153: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/153.jpg)
Distance Protection --- JAVED 153
![Page 154: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/154.jpg)
Distance Protection --- JAVED 154
![Page 155: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/155.jpg)
Distance Protection --- JAVED 155
![Page 156: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/156.jpg)
Distance Protection --- JAVED 156
![Page 157: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/157.jpg)
Distance Protection --- JAVED 157
![Page 158: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/158.jpg)
Distance Protection --- JAVED 158
![Page 159: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/159.jpg)
Distance Protection --- JAVED 159
![Page 160: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/160.jpg)
Distance Protection --- JAVED 160
![Page 161: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/161.jpg)
Distance Protection --- JAVED 161
![Page 162: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/162.jpg)
Distance Protection --- JAVED 162
![Page 163: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/163.jpg)
Distance Protection --- JAVED 163
![Page 164: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/164.jpg)
Distance Protection --- JAVED 164
![Page 165: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/165.jpg)
Distance Protection --- JAVED 165
![Page 166: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/166.jpg)
Distance Protection --- JAVED 166
![Page 167: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/167.jpg)
Distance Protection --- JAVED 167
![Page 168: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/168.jpg)
Distance Protection --- JAVED 168
![Page 169: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/169.jpg)
Distance Protection --- JAVED 169
![Page 170: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/170.jpg)
Distance Protection --- JAVED 170
![Page 171: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/171.jpg)
Distance Protection --- JAVED 171
![Page 172: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/172.jpg)
Distance Protection --- JAVED 172
![Page 173: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/173.jpg)
Distance Protection --- JAVED 173
![Page 174: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/174.jpg)
Distance Protection --- JAVED 174
![Page 175: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/175.jpg)
Distance Protection --- JAVED 175
![Page 176: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/176.jpg)
Distance Protection --- JAVED 176
![Page 177: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/177.jpg)
Distance Protection --- JAVED 177
![Page 178: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/178.jpg)
Distance Protection --- JAVED 178
![Page 179: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/179.jpg)
Distance Protection --- JAVED 179
![Page 180: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/180.jpg)
Distance Protection --- JAVED 180
![Page 181: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/181.jpg)
Distance Protection --- JAVED 181
![Page 182: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/182.jpg)
Distance Protection --- JAVED 182
![Page 183: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/183.jpg)
Distance Protection --- JAVED 183
![Page 184: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/184.jpg)
Distance Protection --- JAVED 184
![Page 185: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/185.jpg)
Distance Protection --- JAVED 185
![Page 186: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/186.jpg)
Distance Protection --- JAVED 186
![Page 187: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/187.jpg)
Distance Protection --- JAVED 187
![Page 188: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/188.jpg)
Distance Protection --- JAVED 188
![Page 189: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/189.jpg)
Distance Protection --- JAVED 189
![Page 190: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/190.jpg)
Distance Protection --- JAVED 190
![Page 191: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/191.jpg)
Distance Protection --- JAVED 191
![Page 192: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/192.jpg)
Distance Protection --- JAVED 192
![Page 193: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/193.jpg)
Distance Protection --- JAVED 193
![Page 194: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/194.jpg)
Distance Protection --- JAVED 194
![Page 195: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/195.jpg)
Distance Protection --- JAVED 195
![Page 196: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/196.jpg)
Distance Protection --- JAVED 196
![Page 197: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/197.jpg)
Distance Protection --- JAVED 197
![Page 198: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/198.jpg)
Distance Protection --- JAVED 198
![Page 199: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/199.jpg)
Distance Protection --- JAVED 199
![Page 200: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/200.jpg)
Distance Protection --- JAVED 200
![Page 201: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/201.jpg)
Distance Protection --- JAVED 201
![Page 202: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/202.jpg)
Distance Protection --- JAVED 202
![Page 203: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/203.jpg)
Distance Protection --- JAVED 203
![Page 204: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/204.jpg)
Distance Protection --- JAVED 204
![Page 205: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/205.jpg)
Distance Protection --- JAVED 205
![Page 206: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/206.jpg)
Distance Protection --- JAVED 206
![Page 207: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/207.jpg)
Distance Protection --- JAVED 207
![Page 208: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/208.jpg)
Distance Protection --- JAVED 208
![Page 209: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/209.jpg)
Distance Protection --- JAVED 209
![Page 210: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/210.jpg)
Distance Protection --- JAVED 210
![Page 211: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/211.jpg)
Distance Protection --- JAVED 211
![Page 212: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/212.jpg)
Distance Protection --- JAVED 212
![Page 213: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/213.jpg)
Distance Protection --- JAVED 213
![Page 214: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/214.jpg)
Distance Protection --- JAVED 214
![Page 215: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/215.jpg)
Distance Protection --- JAVED 215
![Page 216: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/216.jpg)
Distance Protection --- JAVED 216
![Page 217: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/217.jpg)
Distance Protection --- JAVED 217
![Page 218: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/218.jpg)
Distance Protection --- JAVED 218
![Page 219: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/219.jpg)
Distance Protection --- JAVED 219
![Page 220: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/220.jpg)
Distance Protection --- JAVED 220
![Page 221: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/221.jpg)
Distance Protection --- JAVED 221
![Page 222: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/222.jpg)
Distance Protection --- JAVED 222
![Page 223: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/223.jpg)
Distance Protection --- JAVED 223
![Page 224: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/224.jpg)
Distance Protection --- JAVED 224
![Page 225: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/225.jpg)
Distance Protection --- JAVED 225
![Page 226: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/226.jpg)
Distance Protection --- JAVED 226
![Page 227: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/227.jpg)
Distance Protection --- JAVED 227
![Page 228: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/228.jpg)
Distance Protection --- JAVED 228
![Page 229: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/229.jpg)
Distance Protection --- JAVED 229
![Page 230: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/230.jpg)
Distance Protection --- JAVED 230
![Page 231: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/231.jpg)
Distance Protection --- JAVED 231
![Page 232: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/232.jpg)
Distance Protection --- JAVED 232
![Page 233: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/233.jpg)
Distance Protection --- JAVED 233
![Page 234: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/234.jpg)
Distance Protection --- JAVED 234
![Page 235: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/235.jpg)
Distance Protection --- JAVED 235
![Page 236: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/236.jpg)
Distance Protection --- JAVED 236
![Page 237: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/237.jpg)
Distance Protection --- JAVED 237
![Page 238: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/238.jpg)
Distance Protection --- JAVED 238
![Page 239: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/239.jpg)
Distance Protection --- JAVED 239
![Page 240: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/240.jpg)
Distance Protection --- JAVED 240
![Page 241: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/241.jpg)
Distance Protection --- JAVED 241
![Page 242: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/242.jpg)
Distance Protection --- JAVED 242
![Page 243: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/243.jpg)
Distance Protection --- JAVED 243
![Page 244: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/244.jpg)
Distance Protection --- JAVED 244
![Page 245: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/245.jpg)
Distance Protection --- JAVED 245
![Page 246: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/246.jpg)
Distance Protection --- JAVED 246
![Page 247: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/247.jpg)
Distance Protection --- JAVED 247
![Page 248: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/248.jpg)
Distance Protection --- JAVED 248
![Page 249: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/249.jpg)
Distance Protection --- JAVED 249
![Page 250: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/250.jpg)
Distance Protection --- JAVED 250
![Page 251: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/251.jpg)
Distance Protection --- JAVED 251
![Page 252: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/252.jpg)
Distance Protection --- JAVED 252
![Page 253: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/253.jpg)
Distance Protection --- JAVED 253
![Page 254: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/254.jpg)
Distance Protection --- JAVED 254
![Page 255: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/255.jpg)
Distance Protection --- JAVED 255
![Page 256: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/256.jpg)
Distance Protection --- JAVED 256
![Page 257: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/257.jpg)
Distance Protection --- JAVED 257
![Page 258: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/258.jpg)
Distance Protection --- JAVED 258
![Page 259: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/259.jpg)
Distance Protection --- JAVED 259
![Page 260: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/260.jpg)
Distance Protection --- JAVED 260
![Page 261: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/261.jpg)
Distance Protection --- JAVED 261
![Page 262: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/262.jpg)
Distance Protection --- JAVED 262
![Page 263: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/263.jpg)
Distance Protection --- JAVED 263
![Page 264: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/264.jpg)
Distance Protection --- JAVED 264
![Page 265: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/265.jpg)
Distance Protection --- JAVED 265
![Page 266: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/266.jpg)
Distance Protection --- JAVED 266
![Page 267: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/267.jpg)
Distance Protection --- JAVED 267
![Page 268: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/268.jpg)
Distance Protection --- JAVED 268
![Page 269: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/269.jpg)
Distance Protection --- JAVED 269
![Page 270: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/270.jpg)
Distance Protection --- JAVED 270
![Page 271: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/271.jpg)
Distance Protection --- JAVED 271
![Page 272: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/272.jpg)
Distance Protection --- JAVED 272
![Page 273: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/273.jpg)
Distance Protection --- JAVED 273
![Page 274: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/274.jpg)
Distance Protection --- JAVED 274
![Page 275: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/275.jpg)
Distance Protection --- JAVED 275
![Page 276: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/276.jpg)
Distance Protection --- JAVED 276
![Page 277: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/277.jpg)
Distance Protection --- JAVED 277
![Page 278: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/278.jpg)
Distance Protection --- JAVED 278
![Page 279: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/279.jpg)
Distance Protection --- JAVED 279
![Page 280: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/280.jpg)
Distance Protection --- JAVED 280
![Page 281: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/281.jpg)
Distance Protection --- JAVED 281
![Page 282: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/282.jpg)
Distance Protection --- JAVED 282
![Page 283: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/283.jpg)
Distance Protection --- JAVED 283
![Page 284: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/284.jpg)
Distance Protection --- JAVED 284
![Page 285: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/285.jpg)
Distance Protection --- JAVED 285
![Page 286: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/286.jpg)
Distance Protection --- JAVED 286
![Page 287: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/287.jpg)
Distance Protection --- JAVED 287
![Page 288: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/288.jpg)
Distance Protection --- JAVED 288
![Page 289: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/289.jpg)
Distance Protection --- JAVED 289
![Page 290: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/290.jpg)
Distance Protection --- JAVED 290
![Page 291: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/291.jpg)
Distance Protection --- JAVED 291
![Page 292: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/292.jpg)
Distance Protection --- JAVED 292
![Page 293: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/293.jpg)
Distance Protection --- JAVED 293
![Page 294: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/294.jpg)
Distance Protection --- JAVED 294
![Page 295: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/295.jpg)
Distance Protection --- JAVED 295
![Page 296: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/296.jpg)
Distance Protection --- JAVED 296
![Page 297: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/297.jpg)
Distance Protection --- JAVED 297
![Page 298: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/298.jpg)
Distance Protection --- JAVED 298
![Page 299: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/299.jpg)
Distance Protection --- JAVED 299
![Page 300: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/300.jpg)
Distance Protection --- JAVED 300
![Page 301: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/301.jpg)
Distance Protection --- JAVED 301
![Page 302: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/302.jpg)
Distance Protection --- JAVED 302
![Page 303: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/303.jpg)
Distance Protection --- JAVED 303
![Page 304: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/304.jpg)
Distance Protection --- JAVED 304
![Page 305: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/305.jpg)
Distance Protection --- JAVED 305
![Page 306: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/306.jpg)
Distance Protection --- JAVED 306
![Page 307: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/307.jpg)
Distance Protection --- JAVED 307
![Page 308: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/308.jpg)
Distance Protection --- JAVED 308
![Page 309: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/309.jpg)
Distance Protection --- JAVED 309
![Page 310: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/310.jpg)
Distance Protection --- JAVED 310
![Page 311: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/311.jpg)
Distance Protection --- JAVED 311
![Page 312: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/312.jpg)
Distance Protection --- JAVED 312
![Page 313: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/313.jpg)
Distance Protection --- JAVED 313
![Page 314: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/314.jpg)
Distance Protection --- JAVED 314
![Page 315: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/315.jpg)
Distance Protection --- JAVED 315
![Page 316: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/316.jpg)
Distance Protection --- JAVED 316
![Page 317: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/317.jpg)
Distance Protection --- JAVED 317
![Page 318: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/318.jpg)
Distance Protection --- JAVED 318
![Page 319: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/319.jpg)
Distance Protection --- JAVED 319
![Page 320: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/320.jpg)
Distance Protection --- JAVED 320
![Page 321: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/321.jpg)
Distance Protection --- JAVED 321
![Page 322: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/322.jpg)
Distance Protection --- JAVED 322
![Page 323: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/323.jpg)
Distance Protection --- JAVED 323
![Page 324: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/324.jpg)
Distance Protection --- JAVED 324
![Page 325: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/325.jpg)
Distance Protection --- JAVED 325
![Page 326: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/326.jpg)
Distance Protection --- JAVED 326
![Page 327: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/327.jpg)
Distance Protection --- JAVED 327
![Page 328: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/328.jpg)
Distance Protection --- JAVED 328
![Page 329: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/329.jpg)
Distance Protection --- JAVED 329
![Page 330: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/330.jpg)
Distance Protection --- JAVED 330
![Page 331: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/331.jpg)
Distance Protection --- JAVED 331
![Page 332: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/332.jpg)
Distance Protection --- JAVED 332
![Page 333: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/333.jpg)
Distance Protection --- JAVED 333
![Page 334: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/334.jpg)
Distance Protection --- JAVED 334
![Page 335: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/335.jpg)
Distance Protection --- JAVED 335
![Page 336: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/336.jpg)
Distance Protection --- JAVED 336
![Page 337: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/337.jpg)
Distance Protection --- JAVED 337
![Page 338: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/338.jpg)
Distance Protection --- JAVED 338
![Page 339: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/339.jpg)
Distance Protection --- JAVED 339
![Page 340: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/340.jpg)
Distance Protection --- JAVED 340
![Page 341: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/341.jpg)
Distance Protection --- JAVED 341
![Page 342: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/342.jpg)
Distance Protection --- JAVED 342
![Page 343: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/343.jpg)
Distance Protection --- JAVED 343
![Page 344: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/344.jpg)
Distance Protection --- JAVED 344
![Page 345: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/345.jpg)
Distance Protection --- JAVED 345
![Page 346: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/346.jpg)
Distance Protection --- JAVED 346
![Page 347: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/347.jpg)
Distance Protection --- JAVED 347
![Page 348: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/348.jpg)
Distance Protection --- JAVED 348
![Page 349: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/349.jpg)
Distance Protection --- JAVED 349
![Page 350: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/350.jpg)
Distance Protection --- JAVED 350
![Page 351: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/351.jpg)
Distance Protection --- JAVED 351
![Page 352: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/352.jpg)
Distance Protection --- JAVED 352
![Page 353: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/353.jpg)
Distance Protection --- JAVED 353
![Page 354: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/354.jpg)
Distance Protection --- JAVED 354
![Page 355: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/355.jpg)
Distance Protection --- JAVED 355
![Page 356: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/356.jpg)
Distance Protection --- JAVED 356
![Page 357: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/357.jpg)
Distance Protection --- JAVED 357
![Page 358: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/358.jpg)
Distance Protection --- JAVED 358
![Page 359: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/359.jpg)
Distance Protection --- JAVED 359
![Page 360: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/360.jpg)
Distance Protection --- JAVED 360
![Page 361: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/361.jpg)
Distance Protection --- JAVED 361
![Page 362: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/362.jpg)
Distance Protection --- JAVED 362
![Page 363: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/363.jpg)
Distance Protection --- JAVED 363
![Page 364: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/364.jpg)
Distance Protection --- JAVED 364
![Page 365: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/365.jpg)
Distance Protection --- JAVED 365
![Page 366: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/366.jpg)
Distance Protection --- JAVED 366
![Page 367: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/367.jpg)
Distance Protection --- JAVED 367
![Page 368: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/368.jpg)
Distance Protection --- JAVED 368
![Page 369: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/369.jpg)
Distance Protection --- JAVED 369
![Page 370: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/370.jpg)
Distance Protection --- JAVED 370
![Page 371: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/371.jpg)
Distance Protection --- JAVED 371
![Page 372: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/372.jpg)
Distance Protection --- JAVED 372
![Page 373: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/373.jpg)
Distance Protection --- JAVED 373
![Page 374: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/374.jpg)
Distance Protection --- JAVED 374
![Page 375: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/375.jpg)
Distance Protection --- JAVED 375
![Page 376: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/376.jpg)
Distance Protection --- JAVED 376
![Page 377: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/377.jpg)
Distance Protection --- JAVED 377
![Page 378: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/378.jpg)
Distance Protection --- JAVED 378
![Page 379: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/379.jpg)
Distance Protection --- JAVED 379
![Page 380: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/380.jpg)
Distance Protection --- JAVED 380
![Page 381: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/381.jpg)
Distance Protection --- JAVED 381
![Page 382: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/382.jpg)
Distance Protection --- JAVED 382
![Page 383: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/383.jpg)
Distance Protection --- JAVED 383
![Page 384: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/384.jpg)
Distance Protection --- JAVED 384
![Page 385: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/385.jpg)
Distance Protection --- JAVED 385
![Page 386: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/386.jpg)
Distance Protection --- JAVED 386
![Page 387: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/387.jpg)
Distance Protection --- JAVED 387
![Page 388: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/388.jpg)
Distance Protection --- JAVED 388
![Page 389: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/389.jpg)
Distance Protection --- JAVED 389
![Page 390: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/390.jpg)
Distance Protection --- JAVED 390
![Page 391: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/391.jpg)
Distance Protection --- JAVED 391
![Page 392: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/392.jpg)
Distance Protection --- JAVED 392
![Page 393: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/393.jpg)
Distance Protection --- JAVED 393
![Page 394: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/394.jpg)
Distance Protection --- JAVED 394
![Page 395: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/395.jpg)
Distance Protection --- JAVED 395
![Page 396: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/396.jpg)
Distance Protection --- JAVED 396
![Page 397: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/397.jpg)
Distance Protection --- JAVED 397
![Page 398: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/398.jpg)
Distance Protection --- JAVED 398
![Page 399: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/399.jpg)
Distance Protection --- JAVED 399
![Page 400: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/400.jpg)
Distance Protection --- JAVED 400
![Page 401: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/401.jpg)
Distance Protection --- JAVED 401
![Page 402: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/402.jpg)
Distance Protection --- JAVED 402
![Page 403: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/403.jpg)
Distance Protection --- JAVED 403
![Page 404: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/404.jpg)
Distance Protection --- JAVED 404
![Page 405: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/405.jpg)
Distance Protection --- JAVED 405
![Page 406: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/406.jpg)
Distance Protection --- JAVED 406
![Page 407: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/407.jpg)
Distance Protection --- JAVED 407
![Page 408: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/408.jpg)
Distance Protection --- JAVED 408
![Page 409: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/409.jpg)
Distance Protection --- JAVED 409
![Page 410: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/410.jpg)
Distance Protection --- JAVED 410
![Page 411: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/411.jpg)
Distance Protection --- JAVED 411
![Page 412: 27847840 Distance Protection Utility Main Protection for Transmision Lines](https://reader034.vdocuments.us/reader034/viewer/2022051323/5480840fb479590f7a8b457f/html5/thumbnails/412.jpg)
Distance Protection --- JAVED 412