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Project Name: Meghmani Organics Ltd.
Project Number: 11.0332.00
Page 1 EMS-108 Diesel Generator
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LIST OF CONTENTS PAGE
1 SCOPE 2
2 TECHNICAL REQUIREMENTS 2
3 NEUTRAL & BODY EARTHING NOT APPLICABLE 19
4 TESTING OF DG SETS 19
5 MAKE OF COMPONENTS 21
6 DRAWINGS 22
7 OTHER REQUIREMENTS 23
8 BROAD SCOPE OF INSTALLATION & COMMISSIONING 23
9 DATA SHEET 24
10 QUALITY ASSURANCE 24
11 DEVIATION 24
12 SPARES 24
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SPECIFICATIONS FOR DIESEL GENERATOR SET
(EMS-108)
1 SCOPE
This specification covers the design, manufacturing, testing, painting, packing, forwarding,supply, unloading, storing, erection, testing, commissioning, Performance Trial, Personal
Training, handing over and necessary statutory approvals of continuous duty operation (in
site conditions) Diesel Generating set. The scope of supply materials includes Diesel
Engine, Alternator, Base frame, Starting system, Fuel oil system including Engine mounted
engine driven Fuel Oil Pump & Fuel Oil Day Tank, Lubricating oil system, Exhaust system
including Silencers, flexible SS bellows, exhaust piping & its necessary supports and
necessary thermal insulation, Acoustic Enclosure etc. with DG Breaker Panel with AMF
Panel.
There should be a provision in the DG control panel to add auto & manual synchronising
and auto load sharing features at later date.
Civil foundations for all the major equipment if any & under ground cable trenches shall be
in customer's scope. However, the DG vendor shall issue civil & constructional drawings as
required.
It is not the intent to completely specify all details of design and construction, nevertheless
the equipment shall conform to high standards of engineering, design and workmanship so
that the ultimate intent of service for which the equipment are meant is met.
2 TECHNICAL REQUIREMENTS
2.1 GENERAL REQUIREMENT
2.1.1 Scheme of Operation, Control & Synchronizing
Power from DGCP shall be fed to Main LT Panel using 5 runs of 3.5C x 300 Al. XLPE
armoured cables. Power connections between DG Set & DGCP shall also be intended with
the cables of the same size and nos. of runs. The purchaser shall supply MLTP & Cables.
MLTP shall have 1600A, four Pole EDO type ACB with 50KA breaking capacity as a DG
incoming feeder.
DGCP will be in the scope of bidders supply. It will have two segments, one is Power
segment & the other one is Control & AMF segment, which shall include synchronising and
auto load sharing panel with parallel operation of DG Sets in future.
Power Segment:
Neutral of DG set ACB in DGCP shall be connected to the bus through a TP neutral
contactor & a TP Neutral Isolator so that only one neutral isolator can be kept closed when
more than one DG sets are running in parallel (A neutral CT for each DG set to be provided
for showing neutral current. Alternatively, Neutral Isolator can be deleted if Neutral
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contactors are interlocked in such a way that only Neutral contractor is switched ON if
more than one DG set is running.
Power supply from Alternator will be brought up to its ACB in DGCP through above-
mentioned cables.
Vendor shall provide suitable arrangement for terminating of incoming & outgoing cablesin DGCP.
ACB in DGCP shall be of 415V, EDO and shall be provided with all metering and protection
device.
Auto Mains Failure (AMF) system shall be incorporated so as start DG Set (Master incase of
multiple DG sets in future)) automatically when Grid Power fails and vice versa.
In future when there will be multiple DG sets, Other DGs (Followers) will start & get
synchronised with the master in a sequence (at some definite time interval).
Control & Synchronisation Segment: - For future requirement
It should be possible to synchronize the DG Sets by closing respective DG incomer in order
to form a common bus.
There shall be two modes of synchronising & load sharing system viz. Auto & Manual. In
Auto mode, DG operations like starting, synchronising, running, load sharing & stopping
(according to load or as desired) of each DG sets shall be automatically carried out through
PLC / Microprocessor based system. System to be designed in order to achieve attendant
free operation.
In Manual mode, all the DG sets should be able to run & synchronised manually through
conventional Relay based (Check Synchronisation Relay, Frq. Bal. Relay, Sychroscope,
Double Volt & Frq. Meter, auto active and reactive load sharing, auto frequency sharing
etc.) System. This mode of synchronisation & load sharing system will be used only when
Auto synchronisation & load sharing system fails.
Reverse power and Reverse KVAR relay shall also be part of the panel.
The starting time of DG set to come on load should be as low as possible, but not
exceeding 20 secs. In case the first starting operation is not successful, 2 more attempts
with preset time intervals should be made to start the engine and in case of failure, of all
the attempts, the set should be locked out. Stopping of the set shall be done manually.
When engine speeds up and alternator develops desired voltage and frequency, Generator
Circuit Beaker in the DG breaker panel shall be switched on.
2.1.2 Duty
Both Engine & Generator shall be rated for continuous duty at full load as per site
conditions specified; DG sets shall be with overload capacity of 10% for an hour in 12 hours
operation. The excitation system shall also be designed to maintain the rated voltage
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constant even when a load of 150% of rated load is imposed on the generator for duration
of 15 seconds.
2.1.3 Specific Requirements
Alternatora) Rating & Type
Each alternator shall be suitable for Continuous duty to give the following output
at site conditions.
i. Type : Industrial type SPDP, IP23, self ventilated, aircooled, rotating field, brush less, salient pole
machine with self excited & self regulated
exciter.
ii. Rated output : 1000 KVA at 0.8 Power factoriii. Rated Voltage : 415V 1%, 3 phase, 4 wireiv. Rated Speed : 1500 rpmv. Rated Frequency : 50 Hz, 1%vi. Combined Voltage &
Frequency Variation : 2.0% (max)
vii. Neutral grounding : Solidly Earthedviii. The alternator shall withstand without mechanical damage, an over speed of
20% for a period of 2 minutes.
ix. The alternator shall be capable of withstanding without injury/damage for 1sec., 3-phase short circuit at its terminals when operated at rated KVA and
power factor at 5% over voltage with fixed excitation (3 times the line current
for 10 sec.)
x. The alternator shall be capable of withstanding for fifteen seconds (15 sec.) acurrent of fifty (50) percent in excess of its rated current, the voltage being
maintained, as near the rated value as possible, consistent with maximum
capacity of the prime mover.
xi. The alternator shall be capable to sustain the unbalanced current between thephases max. 25% of rated current as per applicable IS/BS.
xii. The alternator shall be flitted with radio interference suppressers inaccordance with relevant IS/BS.
xiii. The alternator shall be dynamically balanced complete with rotor & shaft.b) Codes & Standards
Alternator shall be in accordance with the following Codes & Standards in addition to
those specified elsewhere and relevant IEC:-
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- BS 2619 Electrical Performance for Rotating Electrical
Machines
- BS 269 Rules for Method of Declaring Efficiency
of Electrical Machines
- IS 1231 / BS 2960 Dimensions of 3 phase Electric Motors
- ESS 060 Standard Specification 3 phase poweralternating current generators.
c) Field Control / Excitation System
i. The alternator shall be provided with rotating diode type brush lessexcitation system, capable of supplying the excitation current of the
generator under all conditions of output from no load to full load and
capable of maintaining voltage of generator constant at one particular value.
ii. The excitation system shall comprise of a shaft driven A.C. exciter withrotating rectifiers. These rectifiers shall be complete with in-built over-
voltage protection.
d) Automatic Voltage Regulator(AVR)i. An automatic high speed, dead band type voltage regulator shall be provided
complete with all its accessories etc. The regulation system shall be provided
with equipment for both automatic and manual controls.
ii. The regulator shall regulate the output voltage from generator current and
potential signals. Series compounding transformer shall be provided to
enable maintaining adequate terminal voltage in the event of terminal faults.
Alternatively, excitation system shall be provided with arrangement for field
forcing.
iii. Voltage regulation and steady state modulation shall be within 0.5% of the
line voltage and with manual voltage adjustment capability within 5%.
iii. Necessary equipment for field suppression and surge protection shall beprovided.
iv. The response time of the exciter and the generator shall be properlymatched to avoid hunting.
v. In the event of AVR failure, the generator excitation control shall betransferred immediately to manual control without any change in the
excitation current.
vi. Necessary equipment shall be furnished for the following:- To prevent automatic rise of field voltage in case of failure of
potential supply.
- To initiate transfer from automatic to manual control of excitationon fuse failure in the generator potential signal.
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- The voltage regulator shall be provided with compensation circuit toassure correct division of reactive power for parallel operation. The
excitation and voltage regulation shall be designed to cause
necessary de-excitation in case of short circuit along with cross
current compensation circuit.
e) Construction
i. Generator enclosure shall be Screen Protected, Drip-proof, self ventilatedtype with degree of protection IP-23.
ii. Grease lubricated ball & roller bearings with grease nipples and relief valvesshall be provided for online greasing.
iii. Terminal Boxes All terminal boxes shall be totally enclosed having weather protection
class of min. IP44 with removable undrilled gasketted MS gland plates of
min. 3 mm thickness.
Main terminal box shall be suitable for termination of specified numbersof cables / busduct as per data sheets, Adaptor chamber, if required i.e.
extension box for termination of power cables / bus duct shall be
supplied by the vendor. This extension box shall be independently
supported form the ground & connected to the main terminal box of the
alternator through thick cloth bellow to prevent eccentric loading.
Extension box shall have electroplated copper bus bar of adequate
current carrying capacity duly supported by SMC/DMC insulators & have
sufficient space to terminate nos. of above mentioned power cables /
bus duct. These bus bars inside extension box will be connected to the
alternator terminals through suitable copper flexible (in vendors scope).
RTD/ BTD Terminals shall be brought out into a separate auxiliaryterminal box.
Space Heater terminals shall also be brought out into a separate auxiliaryterminal box.
iv. Two numbers " BSW earth terminals complete with hot dip galvanisedhardware consisting of nuts, plain and spring washers for secured vibration
proof connection shall be provided on opposite sides of the generator.
v. D.G. set along with all its fittings and accessories etc. shall be painted withepoxy based primer and epoxy based paint of light grey shade 631 of
IS-5.
f) Windings
i. Class `H' insulation for Stator, Rotor, Main Generator and Exciter withtemperature rise limited to class B insulation shall be provided.
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ii. Damper winding shall be provided in the pole to damp the oscillations andensure satisfactory performance during parallel operation.
iii. Windings and particularly overhangs shall be suitably impregnated or treatedto prevent absorption of moisture and to withstand acid & alkaline
atmosphere (e.g. epoxy gel coat for overhangs).
iv. Stator windings shall be star connected (six leads). Star point connectionsshall be made outside the stator in terminal box. Ends of each phase winding
shall be brought out in 2 separate terminal boxes, one for phase and other
for neutral connections.
v. RTDs shall be provided ( 2 per phase ) for winding temperaturemonitoring and BTDs (1 per DE and NDE) for bearing temperature
monitoring. Temperature monitoring device/ scanner shall also be a part of
scope of supply. RTDs shall be of PT 100 type. Manufacturer shall indicate
the setting valves for each RTD/BTD for alarm and trip.
vi. Anti-condensation space heaters shall be provided to maintain windingtemperature 5C above ambient temperature. The heaters shall be suitable
for operation on 240V, single phase, 50 Hz, A.C. supply. The space heaters
shall be of metal encased and low surface temperature type. Power supply
to Space heaters shall be fed by vendor complete with cables & terminations
etc.
2.1.4 Diesel Engine (Prime mover)
a) Rating & Type
i. Type : Heavy duty, four stroke, v construction multicylinder, totally enclosed, continuous duty,duct fuel injection, turbo charged after
cooler type.
ii. Speed : 1500 rpmiii. Rating : Capable of delivering continuously at the
generator terminals, net output not less
than the specified values at 0.8 P.F. when
operating under the site & ambient
conditions.
iv. Overloading : 10% overloading capacity for one hour inevery 12 hours continuous running.
v. Type of governing class : To suit the frequency regulation specifiedabove through full control type Electronic
Governor.
vi. Type of starting : Battery starting with instant starting afterlong periods of inactivity.
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vii. Max. speed variation : It shall suit the voltage regulationson a change of load specified.
up to 20% of the
rated load.
viii. Type of fuel : Diesel (HSD/LDO).ix. Type of coupling to : Direct.
Generator.
b) General Requirements
i. All material and design shall be of proven performance and full responsibilityof proper material of construction and adequacy of design, performance and
safeties and controls shall rest with the vendor. All the materials of
construction shall be as per applicable codes & standards etc.
ii. Engine shall be of robust construction, suitable for continuous operation.iii. Dynamic Characteristics
The Purchaser requires that an analysis be made of engine, coupling(s), and
driven unit to ensure that the complete installation starts, operates and
stops free from vibration and oscillation in excess of normal industrial
standards. The vendor shall provide calculations etc. as evidence that such
an analysis is made. Vibration pads in sufficient quantity shall be supplied
along with DG sets.
iv. Cyclic irregularity of the set shall be within Clause 9a of BS649 or equivalent.v. Flywheels shall be designed and manufactured to meet the cyclic variation
levels as per BS649 or equivalent.
vi. Design shall incorporate an exhaust gas driven turbo charger with built-inintake silencer.
vii. A charging air-cooler suitable for specified cooling water temp. shall beincorporated and supplied.
viii. Engine cylinders shall be provided with wear - resistant liners.ix. Necessary flywheel turning devices shall be provided.x. Engine and generator to be provided with a common base plate and shipped
fully assembled. Minimum 4 Nos. lifting lugs shall be provided so that the
whole assembly can be lifted without distortion. Complete assembly shall be
with electric suspension between DG set and foundation bolts, levelling lines
etc. as required.
xi. Combination base plates for all auxiliaries with their respective drive motorsshall be supplied.
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xii. Engine shall be capable of starting and operating for few minutes withoutsupply of raw water for cooling.
c) Lubricating Oil System
i. All lubricating points of the engine shall be connected to pressure oil systemand engine driven pump. The system shall be so designed that when the
engine starts after prolonged shut- down, lubrication failure does not occur.
ii. A lube oil cooler shall be provided.iii. One number A.C. electric motor driven intermittent primer pump with
suitable clock timer shall be supplied for automatic operation, to ensure that
the diesel engine is kept primed at all times and lubricated for instantaneous
starting.
iv. Oil drippings from lubricating points shall be connected to the oil pump andrecirculated.
v. Full flow strainer shall be provided at oil pump suction.vi. Oil tank shall be fitted with level gauges for visual observation.vii. Lube oil system shall be provided with simplex filters, as engine shall be
stopped after every 300 hrs. operation for replacement of lubrication oil and
during this period filters can be replaced. These fixtures shall be of paper
element type having 99.9% efficiency lube oil cartridge filters.
viii. Arrangement shall be made to by pass the lube oil pressure switches andsafety at the starting till the pressure is built up.
ix. All necessary accessories such as pressure gauges, temperature indicators,pressure relief valves, by pass valves & pressure switches etc. shall be
provided.
d) Cooling System
Diesel Engine shall be cooled by pumping a coolant mixture through passages in the
engine cylinder block and head(s) by means of an engine driven pump using
generator skid mounted radiator and an engine-driven fan to cool the coolant and
ventilate the generator room.
Vendor shall also quote alternative rates for Heat Exchanger cooled Diesel engine
using required auxiliaries and cooling tower. It may be noted that cooling towers
along with associated piping and cooling tower pumps shall be procured by vendor
separately and shall be available up to the terminal point of the Engine. However,
vendor to calculate & furnish requirement of cooling water in Cu.Mtr as well as TR
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and required connecting & Header line size. Vendor to supply, necessary rubber
bellows, ball valves & necessary pressure & temperature gauges required for supply
& return line of the cooling water of each DG set
e) Heat Exchanger
i.
Heat exchanger shall be water-to-water, shell and tube type designed for DGduty supplied by DG supplier along with engine. The DG set supplier shall
ensure that the pump with the engine shall be capable of supplying the
required water quantity to maintain the required temperature rise.
ii. The copper tubes shall not be less than 12mm dia with integral fins. Tubesshall be adequately supported to prevent tube vibration and heat exchanger
shall be complete with multiple water heads.
iii. The shell shall be standard ERW pipes or rolled from tested quality steelplates. C.I. water heads shall be designed for easy removal to clean tubes
and shall be interchangeable.
iv. The construction shall conform to the requirements of ASME code forunfired pressure vessels.
v. The Heat Exchanger shall be designed for a maximum working pressure of 7Kg/Sq.cm and shall be tested with a pressure of 10 Kg/Sq.cm (150 PSIG).
vi. Heat exchanger shall be complete with following accessories:- Inlet and outlet connections with necessary shut off valves- Pressure gauges and thermometers- Drain valve, air vents, test cocks, relief valve and purging valve- Any other standard accessories necessary with the equipment
f) Fuel Oil System
i. The manufacturer shall furnish 2 mm thick mild steel epoxy painted (shade631 IS:5) day tank of required capacity (990 litre) for individual engine. The
day tank shall be suitably located inside the DG room. Piping required to
supply HSD up to this individual storage tanks shall be in vendors scope.
Vendor to supply one HSD Flow meter (totalising type) along with its by pass
facility for each of the storage tank in order to measure quantity of fuel
transferred to the respective storage tank. Each storage tank shall be
provided with transparent Glass/ PVC fuel level gauge with valve.
ii. The fuel system shall be provided with simplex filters, as engine shall bestopped after every 300 hrs. operation for replacement of lubrication oil and
during this period filters can be replaced. These fixtures shall be of paper
element type having 99.9% efficiency.
iii. The fuel oil system shall be equipped with a crankshaft driven fuel oiltransfer pump which will draw the fuel oil from the day tank via filters and
shall be as per the engine manufacturer design.
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iv. Direct injection system shall be designed taking into account the type of fuelused, engine speed etc. so as to achieve safe knock free performance with
low emission smoke exhaust. Exhaust system pollution level shall be
indicated and has to be got approved by authorities. (Exhaust smoke quality
and quantity should be within the norms of central and Local pollution
Control Boards).
v. Engine shall be supplied with fuel leakage module to detect the fuel leakagefrom the engine and transfer it back to day tank for reuse.
vi. All interconnected piping from and to the daily service tanks along withassociated piping shall be procured by vendor. Separately while the work will
be done under the supervision of the vendors engineer. The day tank shall
be supplied complete with drain plugs, level indicator, solenoid operated
on/off valves, isolating valve, stainless steel float high level switch with
indication low fuel oil level switch (flameproof) with alarm and indications on
day tank.
g) Starting System
i. Starting of the Diesel Engine shall be done by electric starting systemii. The electric starting system scope shall comprise starter motor, starter 24V
batteries (of suitable Ah rating) and battery charger 24 VDC and all the
required instruments and accessories. The engine-mounted alternator shall
charge the batteries while engine is running and panel mounted battery
charger while engine is at stationery. This shall be automatically managed.
The battery charger should have float and boost charging facility.
h) Combustion air system
A set of wet-type air filters shall be provided.
i) Silencers / Exhaust System
i. Residential type silencers shall be provided.ii. Silencers shall be suitable for mounting outside the DG room. Necessary
lengths of exhaust piping shall be provided as per requirements of operation
and as per latest pollution norms. Expansion joints shall also be provided.
Necessary Stainless Steel bellows in the exhaust system shall be supplied by
the vendor.
iii. All the exhaust piping with hot insulation & necessary cladding up to the DGRoom along with necessary MS structural supporting system (duly designed)for supporting exhaust piping, paintings with necessary heat resistant
aluminium paint along with Aviation Light (LED type Aviation Light) if
required and lighting cable with copper conductor, lightning finial, earth strip
on structure will be in vendors scope.
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iv. Height of exhaust pipe above DG room and insertion losses in noise level ofthe DG after putting residential silencer shall be as per requirement of
Central Pollution Control Board Norms.
j) Piping
All interconnected piping for fuel & cooling water system between diesel engine andvarious auxiliaries shall be inclusive in Scope of the Package system supplier.
k) Instrumentation and Controls
i. Instrumentation
Engine shall be provided with speedometer, lubricating oil pressure gauge,
lube oil temperature, jacket water temperature, battery charging, water
pressure, fuel pressure for local indication in the panel mounted on the
engine itself.
ii. Following protective devices shall be provided for the engine protection:
a) Over speed (Engine over speed detection shall be by means of digital
method employing a tooth magnetic pick up device).
b) Low lubricating oil pressure.c) Hi temperature of cooling water.d) Low fuel levele) Water flow switchf) Cooling Water Pressure (inlet & outlet)The above shall stop the engine in case the failure is indicated by alarm is not
rectified in time.
Visual and audible alarms and associated devices shall be provided for the
above conditions and shall be located in instruments panel. Shutdown
solenoids and relays shall also be provided to stop the engine in the event of
any of these faults.
iii. Visual and audible alarms shall be provided for the following conditions:
a) Failure to start.b) High cooling water temperature.c) High lubricating oil temperature.
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d) Low fuel levele) Fault in restricted zone (between alternator and ACB incoming)f) B-check (only visual - flashing).
2.1.5 Metering & Protection for Alternator:
a) Metering:Breaker Panel of individual Alternator will be provided with the following DIGITAL
meters in addition to in built meters incorporated in the PLC/ Microprocessor based
starting, synchronising & control module.
i. Voltmeter with in built VSS showing Generator set - 3 phase line to line &line to neutral voltage.
ii. Ammeter with in built ASS showing Current (3 phase)iii. Power factor + KW meteriv. Kilowatt hour with sealing arrangement.v. Frequencyvi. Alternator exciter voltage & currentvii. Running Hour Meter.In addition to the meters mentioned above there should be separate voltmeter &
frequency meter showing bus voltage & frequency of the bus.
b) Protections of Alternator:Following minimum protections shall be provided with both alarm & trip conditions
(these are the software based relays provided in PLC/ Microprocessor based control
& monitoring system).
i. Overload protection.ii. IDMT over current & earth fault protection.iii. Short circuit protection.iv. Under voltage & over voltage protection with time delay.v. Under frequency protection.vi. Reverse power protection.
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vii. Reverse KVAR protection.viii. Loss of excitation protection.ix. Phase rotation protection.x. Restricted Earth fault protection.In addition to the above protection hardware Reverse Power Relay (RPR) can be
provided for each alternator, which will be acting for both Auto & Manual
synchronising mode. For both the mode (auto / manual) protection relays in built in
the breaker release shall also come in to the picture.
c) AMF/Synchronizing and load sharing: - For Future requirementThe Auto start/stop, synchronising & load sharing system for paralleling shall be
inclusive of all governing, voltage regulation, synchronising, AMF and load sharing
control as required for isolated bus paralleling application. These shall include
minimum following:-
i. Isochronous real load sharing.ii. Isochronous reactive load sharingiii. Synchroscopeiv. AMF facilityv. Dead bus logicvi. Auto synchronisingvii. Fail to synchroniseviii. Failure to closure
d) This auto synchronising & load sharing system shall also have following additionalfeatures:-
i. Battery monitoring systemii. Digital alarm & status displayiii. Engine & alternator generator set function.iv. Starting control system.v. Advanced serviceabilityvi. Voltage Regulation performance
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vii. Run/Auto/off switchviii. Emergency stop switchix. History & duty cycle datax. Any other components & accessories etc. as required to complete the work.
2.1.6 D. G. Control Panel (DG CP)
The DG control panel including breaker shall be provided to receive 415V, 3 Phase, 4 wire 50
Hz AC power supply from DG set output. Technical features of the breaker panel shall be as
per enclosed standard specification. Neutral contactors & Isolators shall be provided for
neutral isolation.
a) ACBs shall be draw out type, electric operated, motorised, spring charged, with shunttrip coil. Closing and Shunt Trip coil shall be suitable for 24V DC supply. Spring
changing motor shall be suitable for 230V AC supply.
b) Anti pumping relay need not be provided if it is an in built feature of the circuitbreaker.
c) Temperature rise of horizontal and vertical bus bars over an ambient temperature of45C shall be 40C.
d) Horizontal main bus bar shall be of Copper material with current density as 1sq.mm =1A and shall be provided on top only. Busbars and bus links shall be provided with
coloured heat shrinkable PVC sleeves and shrouds on joints.
e) Maximum and minimum operating heights of panels shall be 1800 mm and 300 mmfrom floor level, unless otherwise specified. Minimum 200 mm clear space to beprovided in bottom of panels.
f) DG CP shall be designed and constructed for IP-54 degree of protection forenclosure.
g) Panels shall be front operated type, single front and extendible on both sides.h) Cable entry shall be from bottom.i) All type of switches, relays, meters, indication etc. shall be mounted on front face of
panels. No rear mounting is acceptable.
j) All indicating lights shall be of LED cluster type.k) Spring charging motor shall be provided with thermal overload relays (BMR).l) ACBs shall have microprocessor based releases having O/C, S/C, Inst & E/F tripping
facility without communication capability.
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m) ON-OFF-TRIP, TCH, Spring change indication shall be provided for all ACBs. Potentialfree (1NO+1NC) contact (unused) shall be provided (duly wired up to the terminal)
for status display in the remote location. Each ACB shall be fitted with a stay-put type
Emergency Stop Push button.
n) Drop link type terminals shall be provided for all CTs.o) All spare contacts of relays, circuit breakers and MCCBs shall be wired to the terminal
block for purchasers use.
p) DG panel shall be provided with audio visual alarm for DC supply failure.q) DG Panel should have terminals for Generator space heater panel, which can be
powered up by the Grid power of the PCC.
r) Epoxy powder coated painting (shade 631) procedure shall be adopted forL.V.Switchgear. The painting finish thickness shall not be less than 100 micron. All
the panels shall be pre coated with anticorrosive painting before final coat of
painting.
s) Adaptor chamber / cable termination box shall be provided for termination of bothpower & control cables if necessary.
t) Panel shall have one bus duct connection point from each part of the Bus fortransporting power supply through O/H Bus duct.
u) Supply, laying, Glanding & Termination of all necessary busduct / power cables /control cables required from DG CP to DG Sets shall be in vendor's scope. Please
note that on skid cabling (Supply, Laying & Termination) of the equipments will be in
vendors scope.
v) Supply & erection of Necessary switchgears (MCB etc.) for sensing of grid powersupply shall also be in vendors scope.
w) Copper Earth Bus of 40x5 mm (minimum) shall be running through out the entirelength of the DG CP. All the non-current carrying parts of the switchgears shall be
connected to this earth bus.
x) Space Heater with thermostat & cable alley lighting to be provided in each segment.y) Cooling Fan with suction air filter to be provided for forced ventilation.
2.1.7 Float & Boost Battery Charger
The battery charger equipment (transformer - rectifier unit) are to be provided to charge the
12V or 24V battery required for operating diesel engine.
a) Construction
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The battery charging equipment shall be housed in sheet steel enclosure. Separate
unit is provided then it should be free standing floor mounting, totally enclosed dust
damp vermin protected suitable for indoor location.
b) OperationThe battery will normally be in parallel with a constant voltage float (trickle) charger
of adequate capacity to meet the continuous loads and to keep battery in fullycharged condition under all the conditions of system variations.
A boost charger shall be provided for initial charging and recharging the batteries
when they are in run down condition. A selector switch for selecting float charge or
boost charge shall also be provided on Panel.
c) AccessoriesThe following instruments shall be mounted on the charging panel:
i. Voltmeter with protective HRC fuses.ii. Ammeteriii. Selector switch (Float/Boost)
iv. Indicating Lamps with ballast resistors & protective HRC fuses, for AC supply`ON' & DC Supply `ON'.
d) Internal WiringAll internal wiring of charger unit shall be carried out with 660V grade FRLS PVC
insulated, copper conductor wires (with stranded conductors). An undrilled gland
plate shall be provided for termination of outgoing cables. Both the ends of wires
shall be provided with identification ferrules.
e) EarthingAll metallic non-current carrying parts of equipment & the enclosure shall be bonded
together and to the two earthing terminals provided on the enclosure. The earth
terminals shall be vibration proof and complete with all hardware galvanised or
plated and passivated.
f) FinishThe complete enclosure shall be painted with Epoxy Paint of shade 631 of IS - 5.
g) Name PlatesThe internal & external components of panel shall be provided with rear engraved
Perspex, or laminated plastic nameplates with white letters on black background.
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2.1.8 Lead Acid Storage Batteries
The battery cells and the charging equipment shall be separate units. The battery shall be in
accordance with IS:1652 specifications for Stationery cells and batteries Lead-acid type
(sealed maintenance free).
a) ConstructionsBatteries shall be stationary Lead Acid type. The battery container shall be of hard
rubber or polystyrene. The battery shall be sealed & complete with intercell
connectors, acid level indicating floats, filter vent plugs, etc.
b) CapacityThe battery capacity shall be 24V DC, 4x12V, adequate capacity of Ah to suit the
required duty. The discharge rate shall take into account maximum load imposed at
starting of engine.
c) Accessories and Tools for BatteryThe following accessories and tools are required for battery and shall be supplied by
the vendor.
i. Hydrometer, syringe type, suitable for specific gravity reading of theelectrolyte.
ii. Thermometer with specific gravity correction scale.iii. Acid Level Indicator.iv. Centre servo 3 - 0 - 3 Voltmeter.v. Any other accessories considered necessary/desirable by the vendor.
2.1.9 Power & Control Cables
All power & controls cables from DG set to various panels & auxiliaries etc. within the
battery limits shall be in bidders scope.
Cables shall be 1100V grade, XLPE insulated Aluminium/copper conductor (copper up to 6
mm & aluminium above & including 10 mm), PVC extruded inner sheathed, flat/wire
armoured (wires up to 10 mm & flats above & including 16 mm) cables conforming to IS-
1554 alternatively XLPE cables are also acceptable.
2.1.10 Pipe supports / Foundation Bolts
Foundation bolts and also necessary vibration dampers for DG set and auxiliaries as required shall
be supplied. All pipe supports, hangers, fixtures, fixing bolts; foundation bolts shall also be
supplied. Scope shall also include necessary epoxy painted steel structure for various supports /
cable. Complete DG set shall be AVM mounted.
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3 NEUTRAL & BODY EARTHING NOT APPLICABLE
Supply & erection of all the necessary Earth Pits required for Neutral point of all the alternators,
DG Sets body & Electrical panels (DG CP, Battery Chargers etc.), preparation of Earth Chamber,
necessary Earthing strips will be in Vendors scope. Preparation of Earthing Layout (submission of
Drawings etc.) and supervision of all Earthing activities at site will be in vendors scope.
4 TESTING OF DG SETS
a) Vendor shall carryout all the routine tests for engine & alternator, which shall be asper relevant BS/IS & IEC etc. However, following minimum specific tests shall be
carried out on the set.
i. Operation test for given loading performance data.ii. Check the starting and starting time of set, to come on load.iii. Test for automatic voltage regulation.iv. Test for manual rheostat control for initial voltage setting.v. Tests for specific fuel consumption & specific lube oil consumption at
different loads.
vi. Operation test to check specified operation including simulation, as required.vii. Testing of governing system.viii. Test the tripping operation of set on over speed and other alarms and tripsfor abnormal conditions.ix. Testing of Generator Panel with synchronising panel both in Auto & Manual
Mode.
Vendor shall submit complete data for all the equipment and test certificates for all
the tests (routine and specific) carried out on the set, before final witness /
inspection by customer.
b) Diesel EngineFollowing tests shall be carried out at the engine manufacturers works, in thepresence of purchaser if so desired, DG set and the auxiliaries shall be assembled at
the manufacturers works and the following tests shall be performed.
i. One (1) hour at full load with fuel consumptionii. One (1) hour at load with fuel consumption.
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iii. One (1) hour at 50% load with fuel consumptioniv. Eight (8) hours at full load followed by one-hour continuous load of 110%
and with fuel consumption.
v. Engine starting time.vi. B.H.P. testvii. Noise/vibration testviii. Fuel consumption at intervals of 1 hr. (total 3 hrs)ix. Cooling water temperature at inlet and outlet.x. Lube oil temperature at inlet and outlet.
c) AlternatorThe Alternator shall be subjected to following routine tests:
i. Measurement of resistance of stator and rotor windings.ii. Insulation resistance of stator and rotor windings.iii. High voltage tests on stator and rotor windings.iv. Regulation testv. Efficiency test.vi. Momentary over load testvii. Vibration and noise level measurement.
d) Voltage Regulatori. Sensitivity testii. Response time test
e) Tests at sitei. The tests shall be performed after proper installation of the diesel generating
unit at site to prove the proper operation of interlock circuits and the
capability of the engine to start and pick up load in the specified time, under
supervision of the purchasers representative responsible for supervision,
testing and commissioning, if such service is hired by purchaser.
ii. Guarantee tests to prove guaranteed performance of the D.G. set shall alsobe carried out at site after proper installation. The load test with availableload at site will be given for about 8 hours.
f) Test Certificatei. The test certificates shall be furnished to the purchaser for prior approval
before despatch of any equipment from works and the approval in writing
from purchaser shall be essential to effect despatch of the equipment.
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ii. The test reports shall furnish complete identification of the data includingserial number of each equipment.
Vendor to submit the following data along with their offer
5 MAKE OF COMPONENTS
1) Alternator - Vendor to specify2) Engine - Vendor to specify3) AMF/Sync & Control - Future - PLC/Micro processor based in Auto mode.4) ACB with Microprocessor Release - L&T / Siemens / Schneider / ABB5) Contractor - L&T / Siemens / Schneider / ABB6) Neutral Isolator - L&T / Siemens / Schneider / ABB7) Meters - Havells / Enercon (Conserve) / L& T / Trinity
/ Meco
8) Current Transformer - Indcoil / Precise / G&M / Ashmore9) Bridge Rectifier - USHA / Equivalent10)MCB - L&T / SIEMENS / Havells / Schneider11)Relays - Areva / ABB / CSPC / L&T / SIEMENS12)
Selector switch & hour Counter - Kaycee / Salzer
13)AVR - Vendor to specify14)Timer - L&T / Siemens / Schneider / ABB15)Temperature scanner - Lectrotech / Equivalent16)Impulse Counter - Gujral / Equivalent17)Hooter - Hella / Suraj / Equivalent18)
Time Switch - L&T/ MDS
19)Governor (Electronic) - Vendor to specify20) Cables - CCI / Finolex / RPG / Universal / Avocab /
Torrent / Primecab
21)Cable lugs/ Glands - Dowells / Comet
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22)Electrical Panels - Vendor to specifySystems
23)Battery - Standard / Exide24)
Battery Charger - Vendor to specify
25)Pressure gauges - H. Guru / Fiebig26)Pipes - Tata / GST / Equivalent27)Valves - Audco28)Strainer - JN Marshal / Multiplex29)Non return valve - Audco
30)Motors - Siemens/ ABB/CGL31)Indicating Lamps (LED) - L&T / SIEMENS / Teknik / Sumo
Vendor shall submit following specific data / documents as per schedule given in vendor document
requirements after award of order:
6 DRAWINGS
Following Drawings (in three sets of hard copy & one set of soft copy) will be submitted by the
vendor before starting of site activities.
a) General Arrangement of the Set, DG CP and auxiliaries with minimum clearances andsize of the building. (Room layout).
b) Principal data for foundation design and detail foundation drawing (if any), alongwith the trench (if necessary) must be included in the drg. with dimension a location
etc.
c) Exhaust System details including foundation requirements.d)
P&I Diagram for cooling water system, lub oil system, fuel oil system, exhaust systemetc.
e) Piping GA drawings including complete layout.f) Acoustic Enclosure Lighting Drawing.g) Earthing Lay out Drawing for D.G. Set and its auxiliaries.
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h) Complete SLD of the Power Distribution Systemi) Control schematic Drawingj) Cooling Water Requirement (calculation)k) Index sheet of drawingl) Foundation drawings of all equipment giving loading and un-balanced forces.m) Control wiring diagrams and block schematic diagrams showing inter- connections
between various equipment.
n) Schematic drawing for lube oil and cooling water system.o) Cooling tower drawings.p) Busduct drawings if in vendors scope.
7 OTHER REQUIREMENTS
a) Detailed installation, operation and maintenance manuals for engine, alternator,control panel, battery and battery charger.
b) Lubrication schedule.
c) Technical literature for all equipment, including engine, alternator, control panel,battery and battery charger
d) Complete parts list and recommended spares for 3000 hours of operation and thoserequired during commissioning.
e) Interconnection Schedule.f) Tentative GA Diagram of DG CP & Sync. Panel.
8 BROAD SCOPE OF INSTALLATION & COMMISSIONING
Vendor will depute their engineer at site for supervising all site activities, which are as
follows:
1) Unloading the complete DG Sets, DGCP / Sync. Panel & other Accessories and storing,
shifting to the required position & proper erection of the same. Necessary lifting tackles and
other tools for handling, shifting and assembly will be arranged by the Mechanical
Contractor.
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2) Coupling and alignment of Engine & Alternator, Levelling & checking.
3) Fixing of all loose parts of engine along with silencer, SS bellows. Exhaust pipes along with
their necessary supports & Hot insulation of the Exhaust piping.
4) Placement of Fuel storage tank (990 Lit.) and related piping from the tank to Engine.
5) Laying, glanding & termination of all necessary power control & interlocking cables / busduct
running among DG Set & DG CP.
6) Commissioning of every individual item & performance check, vibration check etc.
7) Joint commissioning by vendor & customer and load trial.
8) Establishing the rated capacity of the generator.
9) Installation of Cooling Tower, Cooling tower Pumps & all related piping.
10) Obtaining approval of D.G. Set installation from Statutory Authorities.
The following points will not be in vendors scope:
i) Foundation and all types of civil works, cable trenches etc.
9 DATA SHEET
The enclosed data sheet indicates detailed quantity and technical requirement.
10 QUALITY ASSURANCE
5.1 Vendor shall submit their quality assurance plan followed for manufacturing of theequipment for approval of Owner/Consultant. This shall be adhered to and shall be
monitored by Owner / Consultant during manufacturing.
11 DEVIATION
6.1 Deviation from specification must be stated in writing at quotation stage.
6.2 In absence of any deviation statement it will be assumed that the requirement of
specification is met without any deviation.
12 SPARES
Sub-contractor shall submit the list of recommend spare for 2 years of operation of system
and quote separately. Vendor shall also furnish the test of recommended spares required
during commissioning along with price list.
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Technical Data Sheet 1000KVA DG Set
Chemical Plant at Dahej
SR. DESCRIPTION SPECIFIED VENDOR DATA
NO.
1 GENERAL
1.1 Tag Nos.
1.2 Rating KVA 1000 KVA
1.3 Quantity No. ONE
1.4 Ambient Temperature Deg.C 45oC
1.5 Altitude
1.6 Humidity 90%
1.7 Make of Alternator *
1.8 Make of Engine *
1.9 Make of AVR *
1.10 Make of Governor *
2 Engine & Auxiliaries:
2.1 Make, type and Model No. *
2.2 Continuous duty (yes/no)
2.3 Nos. of stages
2.4 Power Generated in BHP / KW *
2.5 Nos. & Arrangement of Cylinders *
2.6 Bore dia.(MM) *2.7 Stroke length (MM) *
2.8 Swept Volume (CuM) (Displacement) *
2.9 Normal Clearance (MM) *
2.10 Nos. of Valves (suction / exhaust) *
2.11 Rated RPM 1500
2.12 Compression Ratio *
2.13 Compression Pressure (PSI) *
2.14 Maximum Cylinder Pressure (PSI) *
2.15 Mechanical Efficiency *
2.16 Thermal Efficiency *
2.17 Type of Cylinder cooling System Water cooled
Radiator / Heat Exchanger
2.18 Type of Fuel (HSD Yes/No) Yes2.19 Fuel consumption curve.
2.20 Specific Fuel Oil consumption under NTP (in Gms/BHP/Hr.) within 5%
Tolerance (Vendor to guarantee above figures)
a) At full rated output ( ltr/hr) *
b) At 3/4th
rated output (ltr/hr) *
c) At rated output *
d) At full rated out put but under site condition *
2.21 Fuel Injection Pressure
a) Full rated Output (PSI) *
b) No Load (PSI) *
2.22 Speed load characteristics. Required.
2.23 Governor response time.
2.24 Flywheel
a) Diameter (mm) *
b) Width of Rim (mm) *
c) Thickness of Rim (mm) *
d) Weight (approx.) *
2.25 Lubrication system.
2.26 Specification of Lub Oil *
2.27 Auxiliary Pump type / capacity *
2.28 Main Pump type / capacity *
2.29 Cyclic variation (cyl.Sec.) *
2.30 Crankshaft ultimate tensile strength (PSI) *
2.31 Method of Starting system
DG-1
Yes at Variable load
*
*
As per BS 5514 with Class A1
Governing.
Closed loop +ve pr. Inbuilt pump in
engine.
24V DC, Battery Start
1
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Technical Data Sheet 1000KVA DG Set
Chemical Plant at Dahej
SR. DESCRIPTION SPECIFIED VENDOR DATA
NO.
2.32 Nos. of Batteries with capacity *
2.33 Time required for starting from cold (sec.)
2.34 Type of Governor & Model No. *
2.35 Suitable for Parallel operation (yes / no) Yes
2.36 Guranteed list of Governing
Parmanent variation
---Full Load thrown on
---Full load thrown off
2.37 Total speed variation, which can be effected by hand speed regulating
gear
*
2.38 Safety controls, alarms and trips to be provided.
2.38 List of engine driven auxiliaries. *
2.39 List of motor driven auxiliaries with motor ratings if any.
2.40 Engine Cooling system / Cooling Media
2.41 Cooling Water Circulation (CuM / hr.) *
2.42 Cooling Water Inlet / Outlet Temp. (Deg. C) *
2.43 Specification of Fuel recommended
2.44 Capacity of fuel day tank 990
2.45 Rated output at normal temp. & pressure as per BSS 649: 19581000 KVA
2.46 Over Load for 1hr. at standard operation condition
2.47 Guranteed Lub oil consumption at full rated output (Lt/Hr) *
2.48 Details of Standard Accy. Offered with the engine.
2.49 Time reqd. to pick up full speed & then synchronising with the system.2 min. approx.
3 Information about Alternator:
3.1 Make *
3.2 Type
3.3 Type of enclosure3.4 Frame size.
3.5 Continuous rated output (KVA) and synchronous speed as per IS4722:2631
at NTP condition
3.6 Rated KW at 0.8 PF 800
3.7 Power Factor. 0.8
(lagging)
3.8 Insulation Class.
1. Main Rotor
2. Main Stator H
3. Exciter
3.9 Temperature rise above design ambient temperature of 45C
1. Stator *
2. Rotor *
3. Cores. *
3.10 Nos. of RTDs in Winding and Bearings *
3.11 Rated voltage (Volts) 415
3.12 Rated Frequency(Hz) 50
3.13 No. of phases. 3
3.14 Full load current at 0.8 P.F. *
3.15 Current carrying capacity of AC winding in amps.
a) 10% overload capacity for hours.
b) 50% overload capacity for seconds *
3.16 Resistance in Ohms
a) Main Stator *
b) Main Rotor *
Fuel tank, bearing couple with
seal.
*
1000 KVA at site condition
10% overload for 1hr, in every 12
hr. continuous running.
*
SPDP with IP-23
*
As per BS 5514 with Class A1
Governing
See Note 6 and 7.
Less than 20 sec.
Fuel x Lube oil pump, pre lube oil
pump.
Cooling water pump & CT fan
motor.
2
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Technical Data Sheet 1000KVA DG Set
Chemical Plant at Dahej
SR. DESCRIPTION SPECIFIED VENDOR DATA
NO.
c) Excitor Stator *
d) Excitor Rotor *
3.17 Type of AVR
3.18 Inherent voltage Regulation
3.19 Voltage regulation from no load to full load at Power Factor from 0.8 lag.
to unity with 4% speed regulation of engine.
5%
3.20 Damper winding fitted on poles ( yes/no ). Yes
3.21 Radial clearance between stator and rotor. *
3.22 Critical speed of rotor. *
3.23 Direction of rotation. Clockwise looked from engine
3.24 Bearing Type (DE and NDE)
3.25 Method of lubrication in Bearing Grease
3.26 GD2 of rotating mass in diesel engine, A C generator. *
3.27 Types and make of excitation unit. *
3.28 Permanent Magnet Generator (PMG) Excitation (Yes / No) Yes
3.29 Excitation at rated load and power factor
1. Field voltage *
2. Field amps. *3.30 Efficiency curve and performance data
3.31 Efficiency at rated Voltage and 0.8 PF
1. 100% full load
2. 75% full load
3. 50% full load *
4. 25% full load *
3.32 Continuous maximum unbalanced current withstand shall be (BSS 2613) as
per Relevant Indian Standards.
Yes
3.33 Withstand time current value considering 3 phases and 1 phase short
circuit at alternator terminals.
3.34 Maximum continuous Negative phase sequence Current *
3.35 Short circuit ratio. *
3.36 Winding connection.
3.37 Method of neutral grounding.
3.38 Method of cooling. *
3.39 Weight of Generator (over all) (kgs) *
3.40 Overall dimension (L x H X W) mm *
3.41 Mounting Horizontal foot mounted
3.42 Terminal box arrangement On top
3.43 Shaft extension NA
3.44 Rotor weight *
3.45 Stator Weight *
3.46 GD square of Rotor *
3.47 Transient performance *
3.48 Waveform Distortion at No Load *
3.49 Max. KW rating of the motor that can be started when AC generator is on
load, load and full load.
*
3.50 Telephonic harmonic < 2%
3.51 Voltage regulation 5%
1. Type *
2. Burden of VR on CTs *
3. Dead Band (if any ) None
3.52 Maximum voltage dip /rise when full load is imposed or removed and
Recovery time to obtain rated voltage.
*
3.53 Starting Time from initiation to Alternator to ready to accept load *
3.54 Time to restore voltage to within 3% of nominal for above condition *
3.55 Calculated percentage reactances *
3 sec.
Solidly grounded
Double layer lap
Solid state, electronic.
As per IS 4722
*
*
*
Ball / roller
3
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Technical Data Sheet 1000KVA DG Set
Chemical Plant at Dahej
SR. DESCRIPTION SPECIFIED VENDOR DATA
NO.
a) synchronous reactance Xd *
b) transient reactance Xd' *
a) sub-transient reactance Xd" *
b) zero sequence reactance Xo *
c) Negative sequence X2 *
3.56 Space heater rating. *3.57 Capacity based on voltage regulation & based on over current along with
supporting calculations shall also be furnished.
*
4 PLC / Microprocessor based Control System (bidder to specify the
availability of the following in their system & also to specify additional
features if any).
4.1 Metering (shall display minimum following parameters):
4.1.1 Generator set 3 phase line to line voltage.
4.1.2 Generator set 3 phase line to neutral voltage.
4.1.3 Parallel bus voltage(3 phase / line to line).
4.1.4 Current (3 phase)
4.1.5 Power factor
4.1.6 KW
4.1.7 KWH
4.1.8 Alternator Frequency(Hz)
4.1.9 Parallel bus frequency
4.1.10 Winding and bearing temperature.
4.1.11 Engine running hour display
4.1.12 Engine RPM Display
4.1.13 System DC Voltage Display
4.1.14 % Rated Power
4.2 Engine Control:
4.2.1 Low Oil Pressure Alarm / Trip / Display
4.2.2 High Coolant Temp. Alarm / Trip / Display
4.2.3 Over speed Alarm / Trip
4.2.4 Over Crank Interlock
4.2.5 Cool Down Timer Alarm / Trip4.2.6 Engine Cycle Cranking Operation
4.2.7 Engine Pre-glow indication
4.2.8 Engine Fuel Solenoid Control
4.2.9 Engine Starter Control
4.2.10 Engine Water Temp. Monitor
4.2.11 Day Tank Alarm
4.3 Protection of Alternator:
4.3.1 Overload Protection
4.3.2 IDMT Over Current & E/F Protection
4.3.3 Short Circuit Protection
4.3.4 Under Voltage & Over Voltage protection with time delay
4.3.5 Reverse Power Protection (Active & Reactive)
4.3.6 Loss of Excitation Protection
4.3.7 Under / Over Frequency Protection
4.3.8 Trip Circuit Supervision relay
4.3.9 Winging Temp. Protection & Indication
4.3.10 Bearing Temp. Protection & Indication
4.3.11 Phase Rotation Protection
4.4 AMF, Synchronising & Load Sharing: (this system shall be inclusive of all
governor control, voltage regulation, AMF, synchronysing & load sharing
control as requires for isolated bus & parallel application. Vendor to
specify inclusion of the following). Any other components & accy. Etc. as
required to complete the work.
Required.
Required.
Required.
4
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Technical Data Sheet 1000KVA DG Set
Chemical Plant at Dahej
SR. DESCRIPTION SPECIFIED VENDOR DATA
NO.
4.4.1 AMF facility
4.4.2 Dead Bus Logic
4.4.3 Auto synchronising
4.4.4 Active Load sharing
4.4.5 Reactive load sharing
4.4.6 Fail to synchronise
4.4.7 Failure to closure
4.4.8 Battery Monitoring system
4.4.9 Digital Alarm & status display At Present only AMF Feature
4.4.10 Starting Control system Required
4.4.11 Advance serviceability
4.4.12 Voltage Regulation Performance
4.4.13 Run / Auto / Off switch
4.4.14 Emergency Stop Switch
4.4.15 History & Duty cycle Data
4.4.16 Communication Facility
5 Battery :
5.1 Type & make of battery5.2 Nos. of batteries
5.3 Amp. hour rating of battery (10 hr. rate) and charge and discharge
characteristic of battery.
6 Engine Cum Alternator Control Panel
6.1 Engine starting switch with key REQUIRED
6.2 Gauge (150mm dia.) Or Electronic Display (LCD) SEE NOTE - 4
6.3 Meters SEE NOTE - 5
6.4 Alarms SEE NOTE - 6
6.5 Trips SEE NOTE - 7
6.6 Annunciator Panel and others SEE NOTE - 8
6.7 Control Wiring SEE NOTE - 9
7 SYNCHRONISING PANEL /BRACKET Required *
8 Erection & Commissioning Required *
First fill of oil + lubricants
E & C - Spares + Consumables.
9 Spare Parts Required *
10 Make of Components Required as per approved list *
11 OPERATIONS PHILOSOPHY As per Specification *
12 VIBRATION ISOLATION PADS Required *
13 SILENCER Residential Type / High rise *
including 30 mtr. Commonchimney as per regulations of
Local Pollution Control Board.
14 DUCTING WITH COMPENSATORS Required *
15 RADIATOR Not Required *
16 ROOM VENTILATION SYSTEM Not Required *
17 EARTHING CONDUCTOR 2 Nos. 75 x 12 mm G.I. *
18 ACCOUSTIC INSULATION OF D.G. SET Required *
19 SAMPLING OF OIL (PARA 4.4/4.5) Not Required *
20 COOLING TOWER FAN Required *
21 COOLING WATER CIRCULATION PUMP Required *
22 COOLING WATER PIPING ERW-IS-1239 hearing. *
ALL COOLING WATER PIPING FITTING ANSI-B-16.5
*
*See Note 1
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Technical Data Sheet 1000KVA DG Set
Chemical Plant at Dahej
SR. DESCRIPTION SPECIFIED VENDOR DATA
NO.
VALVES, END CONNECTION ETC. AS PER ASTM
NOTES :
1) BATTERY SHALL BE HEAVY DUTY LEAD ACID, SEALED MAINTENANCE FREE TYPE.
2) COOLING SHALL BE CARRIED OUT THROUGH RADIATOR / HEAT EXCHANGER.
3) BRUSHLESS, SELF EXCITED, SELF REGULATED WITH AUTOMATIC VOLTAGE REGULATOR
4) GAUGES SHALL BE PROVIDED FOR -
PRESSURE GAUGE AND WATER TEMP. GAUGE FOR COOLING WATER INLET & OUTLET AT HEAT EXCHANGER.
5) METERS SHALL BE PROVIDED FOR -
a) BATTERYCHARGER D.C.VOLTMETER WITH SELECTOR SWITCH b) RUNNING HOUR INDICATOR c) RPM INDICATOR
d) BATTERY CHARGING D.C.AMMETER .
6) ALARMS SHALL BE PROVIDED FOR -
a) HIGH WATER TEMPERATURE ALARM
b) ENGINE FAILS TO START ALARM.
c) EMERGENCY STOP ALARM.
d) OVERSPEED ALARM / TRIP.
7) TRIPPING CIRCUIT SHALL BE PROVIDED FOR -
a) LOW LUBE OIL PRESSURE b) HIGH WATER TEMPERATURE
c) ENGINE OVERSPEED d) HIGH OR LOW VOLTAGE.
8) 12 WINDOWS ANNUNCIATOR SHALL BE PROVIDED TO SUIT SYSTEM REQUIREMENT FOR EACH SET.9) 2.5 sq.mm 650V GRADE PVC INSULATED COPPER WIRES SHALL BE USED FOR WIRING.
10) ALL DATA OF APPROVED MAKE SHALL BE FURNISHED DURING OFFER STAGE ONLY.
11) CONTROL PANEL SHALL BE SUITABLE FOR TERMINATION OF TPN, ALUMINIUM BUSDUCT OF 5000A RATING
12) * - VENDOR TO SPECIFY.