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Overcurrent and Distance Relays
Siemens LSA 2.1.3 . March 1997 1
Application
The 7SJ511 is used as a definite–time orinverse definite minimum time (IDMT)overcurrent protection in medium–volt-age distribution systems with single–endinfeed. It is also used as back–up for dif-ferential protection schemes applied tolines, transformers and generators.
Construction
Within its compact design, the unit con-tains:� All components for analog value ac-
quisition and numeric evaluation� Operating panel� Indication and command outputs� Binary inputs� Serial interfaces for parameterization
and connection to substation controland protection
� Auxiliary voltage converter.The device can be provided in two hous-ings. The model for panel surface mount-ing is equipped with terminals accessiblefrom the front. The options for flushmounting have rear connection terminalsand are available with or without glasscover.
Implemented functions/features
The following functions are available:� Definite–time/inverse time overcurrent
protection� Definite–time/inverse time earth–fault
protection� Overload protection (with memory)� Reverse interlocking (busbar protec-
tion scheme)� Circuit–breaker failure protection� Trip circuit test function� Display of on–load measured current
values� Fault recording.
Mode of operation
With the use of a powerful micro–control-ler and digital analog value preparationand processing, the effect of high fre-quency transients and transient DC com-ponents is largely eliminated.If definite–time characteristics are usedthe measuring method involves evalua-tion of the fundamental. If dependenttime characteristics are chosen there is achoice between r.m.s value or fundamen-tal calculation.
Serial interfaces
The device is equipped with two serialinterfaces.A PC can be connected to the front portto ease setup of the relay using DIGSI.This program, which runs under MS–WINDOWS, can also be used to evaluateup to 8 oscillographic fault records, 8fault logs and 1 event log containing up30 events.The 7SJ511 can be hooked up to asubstation automation system. The sys-tem interface for linking to the SINAUTLSA substation control and protectionsystem or a protection master unit usesthe protocol IEC 870–5–103 (standard ofthe Association of German Power Utili-ties, VDEW/ZVEI recommendation). Theconnection can be either via an 820 nmfibre optics interface or an electricalRS232C interface.
Self monitoring
Hardware and software are constantlymonitored and irregularities immediatelydetected and signalled. In this way a veryhigh degree of safety, reliability and avail-ability is achieved.
7SJ511 Numerical overcurrent–time protection relay (Version V3)
Fig. 17SJ511 numerical overcurrent–time protection relay
49
50
50N
51
51N
Scope of functions
50BF
Siemens AG 1997�
Overcurrent and Distance Relays
Siemens LSA 2.1.3 . March 19972
Convenient setting
The menu driven HMI or connected OC isused for setting parameters. The parame-ters are stored in a non–volatile memoryso that the setting is retained even if thesupply voltage is cut off.
Oscillographic fault recording of up to8 records (5 seconds maximum)
The ”Fault recording” function is used torecord the phase currents in the event ofa power system fault. Either pickup, trip-ping or binary input can be selected totrigger waveform capture. The maximumlength of a record can be programmed.The recorded traces of the phase andground currents and pickup and drop–offof internal events can be transmitted to aPC for convenient analysis using DIGRA.
7SJ511 Numerical overcurrent–time protection relay (Version V3)
Fig. 2Settings window using DIGSI
Fig. 3Analog and binary traces
Overcurrent and Distance Relays
Siemens LSA 2.1.3 . March 1997 3
Overcurrent–time protection
IEC curvesThe function is based on phase–selectivemeasurement of the three phase cur-rents and the earth current. Either defi-nite–time or inverse–time maximum cur-rent time protection can be used. Inaddition to the overcurrent stage there isa high current state both for the phases(�>, �>>) and for the earth (�E>, �E>>).The high current stage always has defi-nite–time characteristics:If the 11th place of the order number is 0(country–specific presettings: German/English), the following tripping character-istics can be selected (to BS 142, or IEC 255–4):� normal inverse (Fig. 4)
t � tp �0.14
(���p)0.02 –1
� very inverse (Fig. 5)
t � tp �13.5
����p) –1
� extremly inverse (Fig. 6)
t � tp �80
(���p)2 –1
t tripping timetp time multiplier 0 – 10 s� fault current�p current setting 0.1 – 4 �N
7SJ511 Numerical overcurrent–time protection relay (Version V3)
Fig. 4Tripping time characteristics, normal inverse (IEC 255–4)
50
tp = 0.05
tp = 3.2
tp = 1.6
t [s]
�/�p
10070
20
10
75
2
1
0.7
0.5
0.2
0.1
0.07
0.05
0.02
0.011 2 3 5 7 10 20
tp = 0.1
tp = 0.2
tp = 0.5
tp = 1
Fig. 5Tripping time characteristics, very inverse(IEC 255–4)
t [s]
�/�p
70
50
20
1075
2
10.70.5
0.2
0.1
0.07
0.05
0.02
0.011 2 3 5 7 10 20
tp = 1.6
tp = 0.5
tp = 0.2
tp = 0.1
tp = 0.05
tp = 1
100
tp = 3.2
Fig. 6Tripping time characteristics, extremely inverse(IEC 255–4)
t [s]
�/�p
100 70
50
20
10
7
5
2
1
0.7
0.5
0.2
0.1
0.07
0.05
0.02
0.011 2 3 5 7 10 20
tp = 0.05
tp = 0.1
tp = 0.2
tp = 0.5
tp = 1
tp = 1.6
tp = 3.2
Overcurrent and Distance Relays
Siemens LSA 2.1.3 . March 19974
Curve type A B N
Inverse 8.9341 0.17966 2.0938
Short inverse 0.2663 0.03393 1.2969
Long inverse 5.6143 2.18592 1.0000
Moderately inverse 0.054196 0.09328 0.0200
Very inverse 19.138 0.48258 2.0000
Extremely inverse 28.2785 0.12173 2.0000
Definite inverse 0.4797 0.21359 1.5625
7SJ511 Numerical overcurrent–time protection relay (Version V3)
US Curves
The following inverse–time characteris-tics have been adapted to the require-ments of the US market. The US–version has a ”1” in the 11thplace of the order number.
t � � A(���p)N –1
� B� � D
t tripping time�p current settingA, B, N parameters
� �–Squared–T Curve (Fig. 7)
t � 50.7 D � 10.14(���p)2
t tripping time�p current settingD time dial setting
Fig. 7Tripping time characteristic, �–squared–T curve
t [s]
�/�p
70
50
20
1075
2
10.70.5
0.2
0.10.070.05
0.02
0.011 2 3 5 7 10 20
D = 1.6
D = 0.5D = 0.2D = 0.1D = 0.05
D = 1
100
D = 3.2
D = 5D = 7
D = 10
Fig. 8Tripping time characteristic, inverse
t [s]
�/�p
7050
20
1075
2
10.70.5
0.2
0.10.070.05
0.02
0.011 2 3 5 7 10 20
D = 1.6
D = 0.5
D = 0.2
D = 0.1
D = 0.05
D = 1
100
D = 3.2
D = 5D = 7D = 10
Fig. 9Tripping time characteristic, moderately inverse
t [s]
�/�p
7050
20
1075
2
10.70.5
0.2
0.10.070.05
0.02
0.011 2 3 5 7 10 20
D = 1.6
D = 0.5
D = 0.2
D = 0.1
D = 0.05
D = 1
100
D = 3.2D = 5D = 7D = 10
Overcurrent and Distance Relays
Siemens LSA 2.1.3 . March 1997 5
7SJ511 Numerical overcurrent–time protection relay (Version V3)
Fig. 10Tripping time characteristic, short inverse
t [s]
�/�p
7050
20
1075
2
10.70.5
0.2
0.10.070.05
0.02
0.011 2 3 5 7 10 20
D = 1.6
D = 0.5
D = 1
100
D = 3.2
D = 5D = 7D = 10
D = 0.2
D = 0.1
D = 0.05
Fig. 11Tripping time characteristic, very inverse
t [s]
�/�p
7050
20
1075
2
10.70.5
0.2
0.10.070.05
0.02
0.011 2 3 5 7 10 20
D = 1.6
D = 0.5
D = 0.2
D = 0.1
D = 0.05
D = 1
100
D = 3.2
D = 5D = 7D = 10
Fig. 12Tripping time characteristic, long inverse
t [s]
�/�p
7050
20
1075
2
10.70.5
0.2
0.10.070.05
0.02
0.011 2 3 5 7 10 20
D = 1.6
D = 0.5
D = 0.2
D = 0.1D = 0.05
D = 1
100
D = 3.2
D = 5D = 7D = 10
Fig. 13Tripping time characteristic, extremely inverse
t [s]
I/Ip
7050
20
1075
2
10.70.5
0.2
0.10.070.05
0.02
0.011 2 3 5 7 10 20
D = 1.6
D = 0.5
D = 0.2
D = 0.1
D = 1
100
D = 3.2
D = 5D = 7D = 10
D = 0.05
Fig. 14Tripping time characteristic, definite inverse
t [s]
�/�p
7050
20
1075
2
10.70.5
0.2
0.10.070.05
0.02
0.011 2 3 5 7 10 20
D = 1.6
D = 0.5
D = 0.2
D = 0.1
D = 0.05
D = 1
100
D = 3.2D = 5D = 7D = 10
Overcurrent and Distance Relays
Siemens LSA 2.1.3 . March 19976
Earth–fault protection
For protection against high–resistanceearth–faults in earthed networks, it ispossible to monitor the earth current viaan independent fourth input current trans-former. As for the phase current protec-tion, a choice may be made between thedefinite–time and the IDMT overcurrentcharacteristics, both having definite–timehigh–set overcurrent characteristic.
Intermittend earth–fault protectionwith firmware V3.1
Intermittend (re–striking) faults occur dueto insulation weaknesses in cables or asa result of water penetrating cable joints.Such faults either simply cease at somestage or develop into lasting short–cir-cuits. During intermittent activity, how-ever, starpoint resistors in networks thatare impedance–earthed may undergothermal overloading. The normal earth–fault protection cannot reliably detect andinterrupt the current pulses, some ofwhich can be very brief.The selectivity required with intermittentearth faults is achieved by summatingthe durations of the individual pulses andby triggering when a (settable) summedtime is reached. The response threshold��E> evaluates the rms value, referred toone systems period.
Reverse interlocking
Blocking of any stage (e.g. �>>) is pos-sible via a binary input. Thus, the numeri-cal overcurrent protection 7SJ511 can beused as a fast busbar protection in wyeconnected networks or in open ring net-works (ring open at one location), usingthe reverse interlock principle. This canbe used in medium–voltage systems, inpower station auxiliary supplement net-works, etc., in which cases a transformerfeeds from a higher–voltage system ontoa busbar with several outgoing feeders.
Thermal overload protection
For the protection of cables or machines,an overload protection with a pre–warn-ing stage for temperature and current isimplemented. The temperature of theequipment to be protected is determinedusing a thermal homogeneous bodymodel that contains energy input to theequipment and energy output to the envi-ronment. In this way currents thatchange over time and pre–loading can betaken into account (overload protectionwith memory).Using a parameter, it is possible to selectwhether the maximum of the phase–re-lated conductor temperature or the meanvalue of these is to be taken as the deter-mining value. It is also possible to calcu-late the temperature from the maximumvalue of the conductor current.
Circuit–breaker failure protection
After the issue of a trip command by therelay or upon the excitation of a digitalinput by an external protection, thebreaker failure current check function isinitiated.If current is still detected after the settime (e.g. in the case of a breaker fail-ure), an alarm relay or a command relay(for breaker failure tripping) is energized.
Inrush stabilization
When switching on a transformer the7SJ511 can distinguish between inrushand real short–circuits. Inrush is particu-larly noticeable by its relatively high se-cond harmonic content. In the case of ashort–circuit, the second harmonic con-tent is almost non–existent. The har-monic stabilization operates indepen-dently for each of the three phases.When using inrush stabilization on onephase, it is also possible to block the re-maining phases (cross block). When us-ing inrush detection the pick–up of thehigh–set element stays active, and thenormal overcurrent element is blocked.
Fault recording
The digitized analog values of phase cur-rents and earth current are stored in theevent of a fault. The analog values re-corded can be transferred to a PC wherethey can be displayed, analyzed and ar-chived using DIGSI. As an option theycan be read out by the SINAUT LSAsubstation control and protection system.The serial interface conforms to VDEW/ZVEI. Up to eight fault recordings can bestored. The fault recording buffer is a cir-culating buffer with a maximum length sothat when it is full every new networkfault overwrites the oldest recorded fault.A total of 5 seconds are available for therecording duration.
Indications
The 7SJ511 supplies detailed data foranalyzing faults and checking states dur-ing operation. All the following indicationsare protected against supply voltage fail-ure, in case there is a battery–backedclock.� Time
Time can be synchronized via a binaryinput or the serial interface. The dateand time are assigned to all indica-tions.
� Fault indicationsThe indications of the faults in the de-vice are available with a resolution of1 ms.
� Operational indicationsAll indications that do not immediatelyrefer to a fault (e.g. operating orswitching actions) are stored in the op-erational indication buffer (resolution1 ms).
Circuit–breaker trip circuit test func-tion
The integrity of the circuit–breaker tripcircuit can be tested via an operator initi-ated trip command. This test can be initi-ated via the front panel keyboard or oper-ator serial interface, but only after inputof a code word.
Marshalling of command and alarm/event relays, LEDs and binary inputs
All input/output relays and indicatingLEDs may be functionally allocated ac-cording to the user‘s requirements.Several indications can be assigned toone output relay, LED or binary input si-multaneously. In this case they areORed.
Measuring, monitoring and testingfunctions
The following functions are available forcommissioning, operational measure-ment and monitoring:� Measuring of currents: �L1, �L2, �L3, �E
� Monitoring of current sum and currentsymmetry.
� Tripping test with circuit–breaker.
7SJ511 Numerical overcurrent–time protection relay (Version V3)
Overcurrent and Distance Relays
Siemens LSA 2.1.3 . March 1997 7
Technical data
Input circuits Rated current �NRated frequency fNThermal overload capability in current path
continuous1 s
Dynamic overload capability (half cycle)Burden
of current inputs at �N = 1 Aat �N = 5 A
1 or 5 A50 or 60 Hz
4 x �N100 x �N250 x �N
approx 0.1 VAapprox. 0.2 VA
Voltage supplyvia integrated DC/DC converter
Rated auxiliary voltage Vaux/permissible ranges
Max. ripple at rated voltagePower consumption, quiescent
energizedMax. bridging time during loss of voltage supply
24, 48 V DC or /19 to 56 V DC60, 110, 125 V DC or /48 to 144 V DC220, 250 V DC or /176 to 288 V DC�12 %approx. 5 Wapprox. 10 W�50 ms at Vaux �110 V DC
Binary inputs NumberVoltage rangeCurrent consumption independent of operating voltage
2 (marshallable)24 to 250 V DCapprox. 2.5 mA
Alarm/event contacts Number of relays, each having 1 C/O contactSwitching capacity make/breakSwitching voltagePermissible current, continuous
5 (marshallable)20 W/VA250 V AC/DC1 A
Command contacts Number of relays, each having 2 NO contactsSwitching capacity make
breakSwitching voltagePermissible current, continuous
0.5 s
2 (marshallable)1 000 W/VA30 W/VA250 V AC/DC5 A30 A
LED displays Ready indication greenBlocked indication redMarshallable LEDs red
116
Serial interfaces Operator interfaceConnection
Potential free system interface for data transmission to control center
Standard
Baud rate
Transmission reliabilityConnection, direct on flush–mounted housing
on surface–mounted housing
distancetest voltage
Connection fibre optic cable
optical wavelengthpermissible attenuationdistanceno character
not isolatedon front panel, 25–pole subminiature plugISO 2110 for the connection of a PCisolated
similar to V.24/V.28 (RS232C)according to EIA, DIN 19 2449 600 Bd setting as supplied;min. 4 800 Bd, max. 19 200 Bdhamming distance d = 4at rear, 4–pole module connectorat two–tier terminal at the top and bottomof the housingcable with 2 core pairs, with individual andcommon screening:e.g. LIYCY–CY/2 x 2 x o.25 mm2
max. 1 km2 kV with rated frequency for 1 minintegrated FSMA connectors for FO connectionon flush–mounted housing: at rearon surface–mounted housing: at the bottom of housing820 nmmax. 8 dB with glassfibre 62.5/125 �mmax. 2 kmswitchable; setting as supplied ”light off”
Construction of unit Case, dimensionsWeight flush mounting/cubicle mounting
surface mountingDegree of protection according to EN 60 529
7XP20, see dimension drawingsapprox. 9.5 kgapprox. 11 kgIP51
7SJ511 Numerical overcurrent–time protection relay (Version V3)
Overcurrent and Distance Relays
Siemens LSA 2.1.3 . March 19978
Technical data (continued)
CE–conformity, standards This product is in conformity with the directives of the Council ofthe European Communities on the approximation of the laws ofthe Member States relating to the electromagnetic compatibility(EMC Council Directive 89/336/EEC) and concerning electricalequipment for use within specified voltage limits (low voltagedirective 73/23/EEC). The product conforms with the internationalstandard IEC 255 and the national standard DIN 57 435 part 303(corresponding to VDE 0435 part 303).The relay is designed for use in an industrial environment, forinstallation in standard relay rooms and compartments so thatwith proper installation electro–magnetic compatibility (EMC) isensured.
Conformity is proved by tests performedby Siemens AG in line with article 10 of theCouncil Directives in accordance with thegeneric standards EN 50081 and EN 50082for the EMC directive 89/336/EEC andstandard 60255–6 for the low voltage di-rective.
Insulation tests
IEC 255–5, DIN 57 435 part 303High voltage test (routine test), except d.c. voltage supply inputHigh voltage test (routine test), only d.c. voltage supply inputImpulse voltage test (type test), all circuits, class III
2 kV (rms), 50 Hz2.8 kV DC5 kV (peak), 1.2/50 �s, 0.5 J,3 positive and 3 negative shots at intervalsof 5 s
EMC–tests; immunity (type test)
Standards: IEC 255–6, IEC255–22(international product standard)EN 50082–2 (generic standard)VDE 0435 part 303 (Germanproduct standard)
High frequency test with 1 MHz interferenceIEC 255–22–1, class III and VDE 0435 part 303, class IIIElectrostatic dischargeIEC 255–22–2, class III and IEC 1000–4–2, class IIIRadio–frequency electromagnetic field, non–modulatedreport IEC 255–22–3, class IIIRadio–frequency electromagnetic field, amplitude modulatedIEC 1000–4–3, class IIIRadio–frequency electromagnetic field, puls modulatedENV 50204, class IIIFast transientsIEC 255–22–4 class III, IEC 1000–4–4 class III
Conducted disturbances induced by radio–frequency fields, amplitude modulatedIEC 1000–4–6, class IIIPower frequency magnetic fieldIEC 1000–4–8, class IVIEC 255–6
2.5 kV (peak), 1 MHz, � = 15 �s,400 shots/s, duration 2 s4 / 6 kV contact discharge, 8 kV air dis-charge, both polarities, 150 pF, Rl = 330 �
10 V/m, 27 to 500 MHz
10 V/m, 80 to 1 000 MHz, AM 80 %, 1 kHz,
10 V/m, 900 MHz, repetition frequency 200 Hz, duty cycle 50 %2 kV, 5/50 ns, 5 kHz, burst length = 15 ms,repetition rate 300 ms, both polarities, Rl = 50 ��� duration 1 min
10 V, 150 kHz to 80 MHz, AM 80 %, 1 kHz,
30 A /m, continuous, 300 A /m for 3 s, 50 Hz0.5 mT; 50 Hz
EMC–tests; emission (type test)
Standard: EN 50081–* (European generic standard)
Conducted interference voltage, auxiliary voltageCISPR 22, EN 55022 and VDE 0878 part 22Interference field strength CISPR 11, EN 55011 and VDE 0878 part 11
150 kHz to 30 MHzclass B30 to 1 000 MHzclass A
Climatic stress tests permissible ambient temperature during serviceduring storageduring transport
permissible humidity
–5 to +55 °C–25 to +55 °C–25 to +70 °Cmean value per year �75 % relative humi-dity, on 30 days per year up to 95 % rela-tive humidity, condensation not permissible
Mechanical stress testsIEC 255–21–1, IEC 68–2
permissible mechanical stress during service
during transport
10 to 60 Hz, 0,035 mm amplitude60 to 500 Hz, 0,5 g acceleration5 to 8 Hz, 7,5 mm amplitude8 to 500 Hz, 2 g acceleration
Overload protection Factor kTime constant �Warning temperature �Warn
Current warning stage �Warn
0.1 to 41 to 999.9 min50 to 100%0.1 to 4 x �/�N
Breaker–failure protection Triggering threshold �>Delay time tSVS
0.1 to 4 x �/�N0.06 to 60 s and infinity
Fault recording Measured valuesStart signal
Recording durationHolding time
iL1, iL2, iL3, iETrip, energization, binary, input, LSA, integrated operating panelMax. 5 sUntil fault–recording buffer full. New faultentries overwrite the oldest recordedfaults.
Operational analog values CurrentsMeasuring ranges
�L1, �L2, �L3, �E0 to 240 % x �N
7SJ511 Numerical overcurrent–time protection relay (Version V3)
Overcurrent and Distance Relays
Siemens LSA 2.1.3 . March 1997 9
Technical data (continued)
Definite–time overcurrent protection Overcurrent phase �>earth �E>
High set current phase �earth �E
Delay timesTolerances
Current pick–up valueTimeReset time
�/�N = 0.1 to 25�/�N = 0.1 to 25�/�N = 0.1 to 25�/�N = 0.1 to 250 to 60 s or infinity
�5 % of set value�1 % or �10 msapprox. 30 ms
Inverse–time overcurrent protection Overcurrent phase �pearth �Ep
High set current phase �� (DMT)earth �E� (DMT)
Time multiplier tpPick–up valueCharacteristics according to IEC255–4, paragraph 3.5.2 or BS142(if 11th place of order number = 0)US curves(if 11th place of order number = 1)Linear current rangeTolerances
Pick–up valueTimeShortest operating time201
�p/�N = 0.1 to 4�p/�N = 0.1 to 4�/�N = 0.1 to 25�/�N = 0.1 to 250,05 to 3,2 s1.1 x �pnormal inverse, very inverse, extremelyinverse�p: 0.1 to 4, D: 0 to 10s
25 x �N
�5 %�5 % for 2 �(�/�p>) �20 and tp = 1<30 ms
Selection and ordering data
Order No.7SJ511 numercial overcurrent–time protection relay 7SJ511 � – � � A � � – � �
Rated current at 50/60 Hz AC1 A5 A
15
Auxiliary voltage for converter24/48 V DC60/110/125 V DC220/250 V DC
245
Design structure7XP2030–1 housing for switchboard mounting7XP2030–2 housing for switchboard/cubicle mounting with Weidmüller terminals7XP2030–2 housing for switchboard/cubicle mounting with Weidmüller terminals without glass cover
BCE
Language: country–specific presettingsGerman/English; 50 Hz (Europe)English; 60 Hz (USA)
01
Real–time clock non–volatile alarm memory software generationWithout without version V 2.1xWith with version V2.1xWithout without version V3With with version V3
0123
Scope of functionwithout intermittend earth–fault protectionwith intermittend earth–fault protection
02
Serial system interfaceWithoutWith isolated RS 232C (V.24) interface (wire–connected)With integrated fibre–optic connection
ABC
Operating program DIGSI (other languages on request)
DIGSI Version V3 for Windows, full version for 10 PCs and update for 3 years, GermanEnglish
7XS5020–0AA007XS5020–1AA00
DIGSI Version V3 for Windows, demo–/testversion, GermanEnglish
7XS5021–0AA007XS5021–1AA00
Documentation
English: Catalog LSA 2.1.3: 7SJ511 numerical overcurrent–time protection relay (Version V3)Manual: 7SJ511 (V3) numerical overcurrent–time protection relay
E50001–K5712–A131–A2–7600C53000–G1176–C101–1
German: Katalogblatt LSA 2.1.3: Digitaler Überstromzeitschutz 7SJ511 (Version V3)Handbuch: Digitaler Überstromzeitschutz 7SJ511 (Version V3)
E50001–K5712–A131–A2C53000–G1100–C101–2
7SJ511 Numerical overcurrent–time protection relay (Version V3)
Overcurrent and Distance Relays
Siemens LSA 2.1.3 . March 199710
7SJ511 Numerical overcurrent–time protection relay (Version V3)
Fig. 15Connection diagram, 7SJ511 numercial overcurrent–time protection relay
L1 L2 L3
Power supplyL1
L2
L3
�L1
�L2
�L3
�E
V.24 (RS232C)or fibre optic inter-
face (optional)
Signal relay 4
Signal relay 3
Signal relay 2
7
7SJ511
6C1
6C2
4D1
4D2
1D3
1D4
1D1
1D2
2C2
2C1
3C2
3C1
4C2
4C1
8D46D4
5D17D4
7D2
8D17D3
8D38D2
7D16D36D26D15D35D2
8C48C2
8C18C3
7C47C2
7C17C3
6C3
6C4
Version for panel flush mounting/cubicle mounting
Version for panel surface mounting
Binaryinput 1
Signal relay 1
Commandrelay 1
31
32
10
11
23
24
21
22
3
2
6
1
5
46
47RxDMR
L+
L–
TxDMT
�L1
�L2
�L3
1C2
1C1
4
8�E
5958
5560
41
3742
3938
404544435756
2813
1227
3015
1429
Relay blocked
Binaryinput 2
Commandrelay 2
V.24 serial interface, 2 kV isolationconnection to central control unit
Fibre optic interfaceconnection to central control unit
Overcurrent and Distance Relays
Siemens LSA 2.1.3 . March 1997 11
Dimension drawings in mm
Fig. 167SJ511 with housing 7XP2030–2 (for panel flush mounting or cubicle mounting)
Front view Side view Panel cutout
131.5105
146
7.313.2
255.
8
245
266
231.5
30 29.5
1.5
5.4
150
145
10
Fibre opticconnection 24
4
172
Diam. 5 or M4
Diam. 6
Fig. 177SJ511 with housing 7XP2030–1 (for panel surface mounting with two–tier terminals)
Front view Side view
260
29.5
266
71Z
280
344
159
144
Fibre optic interface
116
1.539
Cutout 20 x 60 (without paint)
6031 45
3015
46
27
40
. . . . .. . . . .
. . . . .. . . . .
Detail Z:
Overcurrent and Distance Relays
Siemens LSA 2.1.3 . March 199712
Conditions of Sale and Delivery
Subject to theGeneral Conditions of Supply and Deliveryfor Products and Services of theElectrical and Electronic Industryand to any other conditions agreed uponwith the recipients of catalogs.
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The technical data, dimensions and weights are subject to change unlessotherwise stated on the individual pagesof this catalog.
The illustrations are for reference only.
We reserve the right to adjust the pricesand shall charge the price applying onthe date of delivery.
Export Regulations
In accordance with present provisions ofthe German Export List and the US Com-mercial Control List, export licences arenot required for the products listed in thiscatalog.
An export licence may however be requi-red due to country–specific application ofthe products.
Relevant are the criteria stated in the de-livery note and the invoice.
Subject to change without notice.
Trademarks
All product designations used are trade-marks or product names of Siemens AGor of other suppliers.
Dimensions
All dimensions in this catalog are given inmm.
Siemens online!
The Power Transmission and DistributionGroup can also be found in the Internet:
http://www.ev.siemens.de
Responsible for
Technical contents: Hans Heining–Triebs,Siemens AG, EV S V 13, Nürnberg
General editing: Roland Reichel/Claudia Kühn–Sutiono,Siemens AG, EV S SUP22, Nürnberg/EV BK T, Erlangen
Conditions of Sale and Delivery � Export Regulations � Trademarks � Dimensions
A 9.91 a
Siemens Aktiengesellschaft
BereichEnergieübertragung und -verteilungGeschäftsgebiet SekundärsystemeP. O. Box 48 06D-90026 Nürnberg
Order No.: E50001-K5712–A131-A2–7600Printed in GermanyKG K 0397 6.0 SC 12 En 321525 6106/U497
PowerTransmissionand Distribution
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