Milton CAT 3516C 2000 kW 2500 kVA 60 Hz 1800 rpm 480 Volts Performance Data3 - Manual

G ENERATOR D ATA M AY 09, 2006
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Engine: 3516 Generator Frame: 826 Genset Rating (kW): 2000.0 Line Voltage: 480
Fuel: Diesel Generator Arrangement: 2628110 Genset Rating (kVA): 2500.0 Phase Voltage: 277
Frequency: 60 Excitation Type: Permanent Magnet Pwr. Factor: 0.8 Rated Current: 3007.0
Duty: STANDBY Connection: SERIES STAR Application: EPG Status: Current
Version: 38699 /38433 /38580 /3636
Spec Information
Generator Specification
Frame: 826 Type: SR4B No. of Bearings: 2
Winding Type: FORM WOUND Flywheel: 21.0
Connection: SERIES STAR Housing: 00
Phases: 3 No. of Leads: 6
Poles: 4 Wires per Lead: 8
Sync Speed: 1800 Generator Pitch: 0.7143
Generator Efficiency
Per Unit Load kW Efficiency %
0.25 500.0 93.7
0.5 1000.0 96.1
0.75 1500.0 96.8
1.0 2000.0 96.9
Reactances Per Unit Ohms
SUBTRANSIENT - DIRECT AXIS X''
d
0.1389 0.0128
SUBTRANSIENT - QUADRATURE AXIS X''
q
0.1291 0.0119
TRANSIENT - SATURATED X'
d
0.2235 0.0206
SYNCHRONOUS - DIRECT AXIS X
d
3.1966 0.2946
SYNCHRONOUS - QUADRATURE AXIS X
q
1.5115 0.1393
NEGATIVE SEQUENCE X
2
0.1335 0.0123
ZERO SEQUENCE X
0
0.0282 0.0026
Time Constants Seconds
OPEN CIRCUIT TRANSIENT - DIRECT AXIS T'
d0
6.9290
SHORT CIRCUIT TRANSIENT - DIRECT AXIS T'
d
0.4838
OPEN CIRCUIT SUBSTRANSIENT - DIRECT AXIS T''
d0
0.0077
SHORT CIRCUIT SUBSTRANSIENT - DIRECT AXIS T''
d
0.0067
OPEN CIRCUIT SUBSTRANSIENT - QUADRATURE AXIS T''
q0
0.0061
SHORT CIRCUIT SUBSTRANSIENT - QUADRATURE AXIS T''
q
0.0054
EXCITER TIME CONSTANT T
e
0.2225
ARMATURE SHORT CIRCUIT T
a
0.0506
Short Circuit Ratio: 0.39 Stator Resistance = 0.0012 Ohms Field Resistance = 1.12 Ohms
Voltage Regulation
Voltage level adustment: +/ - 5.0%
Voltage regulation, steady state: +/ - 0.5%
Voltage regulation with 3% speed change: +/- 0.5%
Waveform deviation line - line, no load: less than 3.0%
Telephone influence factor: less than 50
Generator Excitation
No Load Full Load, (rated) pf
Series Parallel
Excitation voltage: 7.3 Volts 27.17 Volts Volts
Excitation current 1.92 Amps 7.15 Amps Amps
Page 1 of 10 Caterpillar Generator Data
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