WCS1250D6S

DIESEL GENERATING SETS

Your Partner for Power…NOISE LEVEL: N/A

Ratings at 0.8 power factor.

WCS1250D6SWCS Series

Also available in the following voltages: 415/240V-380/220V-220/127V-200/115V; ESP: Standby Power Standby duty, operation under variable load, without over load;PRP: Prime Power-Continuous duty operation, under variable load 24/24h-10% over load permissible 1 hour/12 hours;

M: Mechanical speed governor, E/ECU: Electronic speed governor;NA: Naturally aspirated, TC: Turbocharged, TCA: Turbocharged and air-air aftercooled. TCW: Water-cooled Turbocharged;The weights are approximate and without fuel.

The data is only for your reference but not for use of sales.

Dimensions and Weights

Dry = With Lube Oil Wet = With Lube Oil and Coolant

Length (L)mm (in)

Width (W)mm (in)

Height (H)mm (in)

Drykg (lb)

Wetkg (lb)

GeneratingSet Model

WCS1250D6S

Generating Set Model Prime Standby

WCS1250D6S 1419kVA/1135kW 1563kVA/1250kW

Output Ratings

Ratings and Performance Data

KTA50-G3

PI734A

PLC-7420 / PLC-8610

1800

N/A

C

Engine Make & Model:

Alternator Model:

System:

Noise Level@7m:

Structure Type:

Engine Speed: RPM

Tank Capacity: L 1500

Emissions Compliance: EPA Tier 2

6058 2438 2734 15039

Features:• Cummins engine KTA50-G3• Close coupled to a Stamford alternator PI734A• Microprocessor control module PLC-7420 / PLC-8610• ABB main circuit breaker: 3-Phase 2000A• Rotate speed governor: Electrical fuel injection governor• Excitation system: PMG• A.V.R model: MX321• Key switch• Emergency stop switch• ATS (automatic transfer switch) receptacle• 2x12V sealed for life maintenance free battery• Lockable battery isolator switch• Powder coated canopy• 50℃ radiator• Oil pump on the engine• Steel base frame with forkslots• Vibration isolators between the engine/alternator and base frame• Dry type air filter• Base fuel tank with 6 hours running• Drain points for fuel tank• Operation Manual / Specifications

r

base frame

05

Product configuration-WCS1250D6S

WCS1250D6S WCS1250D6SGenset Model Genset Model

Fuel Level Sensor

Fuel T-valves

Outside Refueling

Outside Watering

Rainhat of Hush Pipe

Lifting Lugs

Labbers

Shock Absorbers

Emergency stop button Outlaid

Control Cabinet with windows and doors

No-skid Floor

Air Inlet

Air Outlet

Silencer

Fire Extinguisher

Emergency Light

Rest Room

Base Fuel Tank

Holes for Forklift

Pulling slots

Wiring hole

Earthed Protection

Drain Outlet

Parts Manual

Operation manual

Warranty manual

Records notebook of Maintenance

4 stroke water-cooled Diesel engine

Industrial Silencer

Switch in the Negative Pole

Oil Sump Pump

Water Jacket Preheater 220/240V

Oil Preheater

Standard Air Filter

PMG

Anti-condensing Heater

Winding Temperature Measuring Instrument

IP23 Single Bearing,Class H insulation

Alternator Preheater

AVR

Radiator for 45℃

Coolant Integrated with genset

Coolant Protection Port

Shelter of Water Tank

Start-up and Charging

Batteries with cables and Switch

Protecting Jacket of Solenoid Terminal

Battery Charger

Key Start

AMF

Paralleling

Automatic Refueling

Breather Valve

Engine Manufacturer/Brand Cummins

Prime Power

Standby Power

1419kVA/1135kW

1563kVA/1250kW

08

Diesel engineKTA50-G3

GENERAL ENGINE DATAType ............................................................................................................................................................... 4-Cycle; 60° Vee; 16-Cylinder DieselAspiration....................................................................................................................................................... Turbocharged and AftercooledBore x Stroke..............................................................................................................— in x in (mm x mm) 6.25 x 6.25 (159 x 159)Displacement.............................................................................................................................. — in3 (liter) 3067 (50.3)Compression Ratio........................................................................................................................................ 13.9 : 1

Dry WeightFan to Flywheel Engine.......................................................................................................... — lb (kg) 11820 (5360)Heat Exchanger Cooled Engine............................................................................................ — lb (kg) 12260 (5560)

Wet WeightFan to Flywheel Engine.......................................................................................................... — lb (kg) 12485 (5662)Heat Exchanger Cooled Engine............................................................................................ — lb (kg) 13085 (5934)

Moment of Inertia of Rotating Components • with FW 6009 Flywheel .......................................................................................... — lbm • ft2 (kg • m2) 301 (12.7)• with FW 6017 Flywheel ........................................................................................... — lbm • ft2 (kg • m2) 515 (21.7)Center of Gravity from Rear Face of Flywheel Housing (FH 6024)........................................ — in (mm) 47.5 (1206)Center of Gravity Above Crankshaft Centerline ....................................................................... — in (mm) 11.0 (279)Maximum Static Loading at Rear Main Bearing.......................................................................... — lb (kg) 2000 (908)

ENGINE MOUNTINGMaximum Bending Moment at Rear Face of Block ......................................................... — lb • ft (N • m) 4500 (6100)

EXHAUST SYSTEMMaximum Back Pressure @ Standby Power Rating.................................................... — in Hg (mm Hg) 2 (51)

AIR INDUCTION SYSTEMMaximum Intake Air Restriction • with Dirty Filter Element @ Standby Power Rating ............................................. — in H2O (mm H2O) 25 (635)• with Clean Filter Element @ Standby Power Rating........................................... — in H2O (mm H2O) 15 (381)

COOLING SYSTEMCoolant Capacity — Engine Only................................................................................... — US gal (liter) 42.5 (161)Maximum Coolant Friction Head External to Engine — 1800 rpm................................. — psi (kPa) 15 (103)

— 1500 rpm................................. — psi (kPa) 10 (69)Maximum Static Head of Coolant Above Engine Crank Centerline............................................. — ft (m) 60 (18.3)Standard Thermostat (Modulating) Range................................................................................. — °F (°C) 180 - 200 (82 - 93)Minimum Pressure Cap (For Cooling Systems with less than 2 m [6 ft.] Static Head)........ — psi (kPa) 14 (96)Maximum Top Tank Temperature for Standby / Prime Power ................................................. — °F (°C) 220 / 212 (104 / 100)

LUBRICATION SYSTEMOil Pressure @ Idle Speed.................................................................................................... — psi (kPa) 20 (138)

@ Governed Speed ......................................................................................... — psi (kPa) 50 - 70 (345 - 483)Maximum Oil Temperature.......................................................................................................... — °F (°C) 250 (121)Oil Capacity with OP 6024 Oil Pan : High - Low .............................................................. — US gal (liter) 40 - 32 (151 - 121)Total System Capacity (Including Bypass Filter).............................................................. — US gal (liter) 46.7 (177)Angularity of OP 6024 Oil Pan — Front Down ..................................................................................... 30°

— Front Up .......................................................................................... 30°— Side to Side..................................................................................... 30°

FUEL SYSTEMType Injection System........................................................................................................................................................... Direct Injection Cummins PTMaximum Restriction at PT Fuel Injection Pump — with Clean Fuel Filter............................................. — in Hg (mm Hg) 4.0 (102)

— with Dirty Fuel Filter................................................ — in Hg (mm Hg) 8.0 (203)Maximum Allowable Head on Injector Return Line (Consisting of Friction Head and Static Head)....... — in Hg (mm Hg) 6.5 (165)Maximum Fuel Flow to Injection Pump.................................................................................................. — US gph (liter / hr) 165 (625)

09

Diesel engine

ELECTRICAL SYSTEMCranking Motor (Heavy Duty, Positive Engagement) ........................................................................................................ — volt 24Battery Charging System, Negative Ground ............................................................................................................... — ampere 35Maximum Allowable Resistance of Cranking Circuit......................................................................................................... — ohm 0.002Minimum Recommended Battery Capacity

• Cold Soak @ 50 °F (10 °C) and Above ............................................................................................................. — 0°F CCA 1280• Cold Soak @ 32 °F to 50 °F (0 °C to 10 °C)...................................................................................................... — 0°F CCA 1800• Cold Soak @ 0 °F to 32 °F (-18 °C to 0 °C)....................................................................................................... — 0°F CCA 1800

COLD START CAPABILITYMinimum Ambient Temperature for Aided (with Coolant Heater) Cold Start within 10 seconds................................ — °F (°C) 50 (10)Minimum Ambient Temperature for Unaided Cold Start............................................................................................... — °F (°C) 45 (7)

PERFORMANCE DATAAll data is based on: • Engine operating with fuel system, water pump, lubricating oil pump, air cleaner and exhaust

silencer; not included are battery charging alternator, fan, and optional driven components.• Engine operating with fuel corresponding to grade No. 2-D per ASTM D975.• ISO 3046, Part 1, Standard Reference Conditions of:

Barometric Pressure : 100 kPa (29.53 in Hg) Air Temperature : 25 °C (77 °F)Altitude : 110 m (361 ft) Relative Humidity : 30%

Steady State Stability Band at any Constant Load ................................................................................................................— % +/- 0.25Estimated Free Field Sound Pressure Level of a Typical Generator Set; Excludes Exhaust Noise; at Rated Load and 7.5 m (24.6 ft); 1800 rpm / 1500 rpm....................................................... — dBA 94.6 / 92.4Exhaust Noise at 1 m Horizontally from Centerline of Exhaust Pipe Outlet Upwards at 45° — 1800 / 1500 rpm.....— dBA 126 / 125

STANDBY PRIME POWERPOWER UNLIMITED TIME

60 hz 50 hz 60 hz 50 hz

Governed Engine Speed..............................................................— rpm 1800 1500 1800 1500Engine Idle Speed ....................................................................... — rpm 725 - 775 725 - 775 725 - 775 725 - 775Gross Engine Power Output...........................................— BHP (kWm) 1850 (1380) 1645 (1227) 1635 (1220) 1470 (1097)Brake Mean Effective Pressure.......................................... — psi (kPa) 265 (1827) 283 (1951) 235 (1620) 253 (1744)Piston Speed.................................................................— ft / min (m / s) 1875 (9.5) 1562 (7.9) 1875 (9.5) 1562 (7.9)Friction Horsepower ......................................................... — HP (kWm) 225 (168) 155 (116) 225 (168) 155 (116)Engine Water Flow at Stated Friction Head External to Engine:

• 4 psi Friction Head...........................................— US gpm (liter / s) 535 (33.7) 440 (27.8) 535 (33.7) 440 (27.8)• Maximum Friction Head..................................— US gpm (liter / s) 470 (29.6) 400 (25.2) 470 (29.6) 400 (25.2)

Engine Data with Dry Type Exhaust ManifoldIntake Air Flow ................................................................— cfm (liter / s) 3900 (1840) 3700 (1746) 3700 (1746) 3400 (1605)Exhaust Gas Temperature......................................................— °F (°C) 887 (475) 977 (525) 860 (460) 968 (520)Exhaust Gas Flow ..........................................................— cfm (liter / s) 9100 (4295) 8500 (4011) 8400 (3964) 7900 (3728)Air to Fuel Ratio .....................................................................— air : fuel 26.5 : 1 27.0 : 1 27.5 : 1 28.0 : 1Radiated Heat to Ambient .....................................— BTU / min (kWm) 10000 (176) 8500 (150) 8500 (150) 7300 (130)Heat Rejection to Coolant ......................................— BTU / min (kWm) 51000 (900) 44000 (775) 44000 (775) 38500 (680)Heat Rejection to Exhaust......................................— BTU / min (kWm) 53000 (935) 48000 (845) 47000 (830) 43000 (760)

07

AlternatorPI734A

CONTROL SYSTEM SEPARATELY EXCITED BY P.M.G.

123XM143XM.R.V.A

VOLTAGE REGULATION ± 1% ± 0.5 % With 4% ENGINE GOVERNING

SUSTAINED SHORT CIRCUIT

INSULATION SYSTEM

PROTECTION

RATED POWER FACTOR

STATOR WINDING

WINDING PITCH

WINDING LEADS

MAIN STATOR RESISTANCE

MAIN ROTOR RESISTANCE

EXCITER STATOR RESISTANCE

EXCITER ROTOR RESISTANCE

srehto rof yrotcaf ot refer .N5780 EDV ,G5780 EDV,4-6-00016 NE SB & 2-6-00016 NE SBNOISSERPPUS .I.F.R

%0.5 < DAOL RAENIL DECNALAB GNITROTSID-NON %5.1 < DAOL ONNOITROTSID MROFEVAW

niM/veR 0522DEEPSREVO MUMIXAM

3C 8226 .LLAB DNE EVIRD GNIRAEB

3C 9136 .LLABDNE EVIRD-NON GNIRAEB

GNIRAEB 2GNIRAEB 1

WEIGHT COMP. GENERATOR

WEIGHT WOUND STATOR

WEIGHT WOUND ROTOR

WR² INERTIA

SHIPPING WEIGHTS in a crate

PACKING CRATE SIZE

TELEPHONE INTERFERENCE

COOLING AIR

772/084662/064452/044042/614452/044042/514132/004022/083RATS EGATLOV

kVA BASE RATING FOR REACTANCE VALUES 1225 1260 1260 1235 1375 1500 1510 1525

Xd DIR. AXIS SYNCHRONOUS 3.51 3.26 3.02 2.64 4.24 4.14 3.81 3.53

X'd DIR. AXIS TRANSIENT 0.21 0.20 0.18 0.16 0.26 0.25 0.23 0.22

X''d DIR. AXIS SUBTRANSIENT 0.16 0.15 0.14 0.12 0.19 0.19 0.17 0.16

Xq QUAD. AXIS REACTANCE 2.26 2.10 1.95 1.70 2.74 2.67 2.46 2.28

X''q QUAD. AXIS SUBTRANSIENT 0.32 0.29 0.27 0.24 0.38 0.37 0.34 0.32

XL LEAKAGE REACTANCE 0.04 0.04 0.03 0.03 0.05 0.05 0.04 0.04

X2 NEGATIVE SEQUENCE 0.22 0.21 0.19 0.17 0.27 0.26 0.24 0.23

X0 ZERO SEQUENCE 0.03 0.03 0.02 0.02 0.03 0.03 0.03 0.03

REACTANCES ARE SATURATED VALUES ARE PER UNIT AT RATING AND VOLTAGE INDICATED

s31.0.TSNOC EMIT TNEISNART d'Ts10.0.TSNOC EMITSNART-BUS d''Ts41.2.TSNOC EMIT DLEIF .C.O od'T

s20.0.TSNOC EMIT ERUTAMRA aT

dX/1OITAR TIUCRIC TROHS

mfc 0037 ces/³m 54.3mfc 0075 ces/³m 96.2

50 Hz

THF<2%

60 Hz

TIF<50

2710 kg

31.7489 kgm2

194 x 105 x 154(cm) 194 x 105 x 154(cm)

32.7498 kgm2

gk9772 gk3382

1306 kg

2760 kg

1306 kg

1077 kg1139 kg

0.8

IP23

CLASS H

REFER TO SHORT CIRCUIT DECREMENT CURVES (page 7)

1.67 Ohms at 22°C

17.5 Ohms at 22°C

DOUBLE LAYER LAP

0.063 Ohms PER PHASE AT 22°C

0.0016 Ohms PER PHASE AT 22°C STAR CONNECTED

6

TWO THIRDS

PLC-7420 is an advanced control module based on

for protection of the genset and the breaker control.It can monitor the mains supply, and automatically start the engine when the mains is abnormal. Accurately measure various operational parametersand display all values and alarms information on the LCD.In addition, the control module can automatically shutdown the engine and indicate the engine failure.

PLC-7420

Control System

Digital, intelligent controlsystem allows easier operation.

FEATURESMicroprocessor control, with high stability and credibilityMonitoring and measuring operational parameters of themains supply and gensetIndicating operation status, fault conditions, all parame-ters and alarmsMultiple protections; multiple parameters display, likepressure, temp. etc.Manual, automatic and remote work mode selectable

Real time clock for time and date display, overall runtimedisplay, 250 log entries

Overall power output display

Integral speed/frequency detecting, telling status ofstart, rated operation, overspeed etc.Communication with PC via RS485 OR RS232 interface,using MODBUS protocol

micro-processor, containing all necessary functions

74207420

08

Control System

PLC-8610

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AVRElectronic GoverningGlow plug controlCycle Cranking(MODBUS)NetworkingFault Historymanual start/stopAuto/remote startRegular TestAuto operation LEDManual operation LEDCommon Shutdown LEDCommon warning LEDFail to start LEDEmergency stop(local)Alphanumeric screenRemote start input active LEDAlarm reset Oil pressure Water Temperture Engine Speed Hours Run Number of Starts Battery Voltage Coolant Temperature 3PhaseL-L Voltage&Frequency 3phase Current Frequency kWh Apparent Power Active Power and Reactive Power Power Factor Per PhasekW, kWr Per Phase kVA Phase Voltage Output Power Grid Line Voltage Grid Phase Voltage Grid Frequency

Low Fuel Level High Fuel Level Low Oil Pressure High Water Temperature Failure to Stop Failure to Start Controlable start circles/times Overspeed Under&Over Voltage Under&Over Frequency Overcurrent Earth Leakage Reverse Power Reverse kWrLow Oil PressureLow Water TemperatureHigh Water TemperatureLow Water LevelLow/High Battery VoltageFailure to ChargeOvercurrentOverloadGenset Under/Over VoltageGenset Under/Over Frequencyunder/over SpeedHigh Engine TemperatureEarth LeakageSynchroscope(Independent Bus) Active and Reactive Power Control Synchroscope(Shared Bus) Synchronization Dector Peak Lopping

Automatic Transfer Hard Closed Transition Soft Closed Transtion Gen/Mains Breaker Gen/Mains Breaker Status Protection Speed/Voltage Control Power Indication Fuel&solenoid Valve Control Startor Control Preheating Mains Transfer Switch (Standard) Mains Transfer Switch (Emergency)Operating Temperature (-40℃-70℃) Ambient Temperature (-25℃-45℃) Humidity≤80%

Grid Over/Under Voltage Control Grid Over/Under Frequency Control Remote Start Output(Load/No-load) Optional Relay Output Remote Telecom Control with All Functions Engine Instrument Monitoring Altemator Output Instrument Monitoring Connection Point with All-around Setting For 6 Users 3 Users Input Connection Point LCD Light Control of Low Light Operation Environment Safe PIN CodeRS232/485 Interface Language Selection Multi-Language Function

MODEL

Diesel Generator Sets 6-2250 kVA

Standard Optional Impossible

PLC-7420

Microprocessor control, with high stability and credibilityMonitoring and measuring operational parameters of the gensetIndicating operation status, fault conditions, all parameters and alarmsMultiple protections; multiple parameters display, like pressure, temp. etc.Manual, automatic and remote work mode selectableRS232 & RS485 can be used at the same timeReal time clock for time and date display, overall runtime display, 250 log entries

PLC-8610 is a microprocessor based control unit containing all necessary functions for

The module has the function of load sharing which enables the module to share the

calculated in percent according to the nominal power.

protection of the genset and the breaker control. Furthermore, it contains all necessarythree-phase measuring circuits and presents all values and alarms on the LCD display.

active load (kW) equally when operating in parallel with other gensets.The load sharing is performed so each genset takes a portion of the load that is

Engine Alternator Generator Set Fuel System Canopy

Exhaust System Cooling System Control Panel Voltages

● Water Jacket Preheater● Oil Preheater

Optional

●Winding Temperature Measuring Instrument●Alternator Preheater● PMG ● Anti-damp and anti-corrosion treatment● Anti-condensation heater

● Tools with the machine ● Low fuel level alarm● Automatic fuel feeding system● Fuel T-valves

● Oil with the machine ● Protection board from hotness

● Front heat protection● Coolant (-30°C)

● Remote control panel● PLC-7420● PLC-8610● ATS

● 415/240V● 400/230V● 380/220V● 220/127V● 200-115V

Lubricating System

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PowerLink reserves the right to make changes in model, technical sepcification, color, configuration and accessories without prior notice. Please contact the salesman before ordering.

WCS Series / Mar.2011, Edition 6220003