Milton CAT G250LG4 250kW_313kVA Spec Sheet - Manual (Page 3)

STARTING CAPABILITIES (sKVA)
FUEL
Natural Gas
Three-Phase 120/208VAC @0.8pf 250 Amps: 868
Three-Phase 120/240VAC @0.8pf 250 Amps: 752
Three-Phase 277/480VAC @0.8pf 250 Amps: 376
Three-Phase 346/600VAC @0.8pf 250 Amps: 301
sKVA vs. Voltage Dip
480VAC 208/240VAC
Alternator kW 10% 15% 20% 25% 30% 35% 10% 15% 20% 25% 30% 35%
Standard 250 263 395 527 658 790 922 197 296 395 494 593 692
Upsize 1 300 303 454 605 757 908 1059 227 341 454 568 681 794
COOLING
COMBUSTION AIR REQUIREMENTS
ENGINE EXHAUST
Flow at Rated Power cfm 453
Rated Engine Speed rpm 1800
Horsepower at Rated kW** hp 400
Piston Speed ft/min 1773
BMEP psi 223.9
** Refer to “Emissions Data Sheet” for maximum bHP for EPA and SCAQMD permitting purposes.
Exhaust Flow (Rated Output) cfm (m 3 /min) 1602 (45.4)
Maximum Recommended Back Pressure inHg 1.5
Exhaust Temp (Rated Output) ºF (ºC) 1450 (788)
Exhaust Outlet Size (Catalyst) in 5.0"
POWER RATINGS (kW)
Fuel Consumption Rates*
Natural Gas
Percent Load ft 3 /min ft 3 /hr m 3 /hr
25% 22.8 1368 38.7
50% 34.2 2052 58.1
75% 47.8 2868 81.2
100% 58.7 3522 99.7
* Refer to "Emissions Data Sheet" for maximum fuel flow for EPA and
SCAQMD permitting purposes.
Air Flow (inlet air combustion and radiator) ft 3 /min (m 3 /min) 10,078 (285.4)
System Coolant Capacity Gal (Liters) 19 (71.9)
Heat Rejection to Coolant BTU/hr 788,204
Max. Operating Air Temp on Radiator ºF (ºC) 122 (50)
Max. Ambient Temperature ºF (ºC) 104 (40)
Maximum Radiator Backpressure in H
2
O 0.5
3 of 5
G250LG operating data (60Hz)
G250LG 250kW
Deration – Operational characteristics consider maximum ambient conditions. Derate factors may apply under atypical site conditions. All performance ratings in accordance with ISO3046,
BS5514, ISO8528 and DIN6271 standards.