Generac Power Systems SD275

Deration – Operational characteristics consider maximum ambient conditions. Derate factors may apply under atypical site conditions. Please consult a Generac Power Systems Industrial
Dealer for additional details. All performance ratings in accordance with ISO3046, BS5514, ISO8528 and DIN6271 standards.
POWER RATINGS (kW)
STARTING CAPABILITIES (sKVA)
FUEL
COOLING
COMBUSTION AIR REQUIREMENTS
ENGINE
EXHAUST
STANDBY PRIME
Single-Phase 120/240VAC @1.0pf 275 kW Amps: 1146 248 kW Amps: 1031
Three-Phase 120/208VAC @0.8pf 275 kW Amps: 954 248 kW Amps: 859
Three-Phase 120/240VAC @0.8pf 275 kW Amps: 827 248 kW Amps: 744
Three-Phase 277/480VAC @0.8pf 275 kW Amps: 413 248 kW Amps: 372
Three-Phase 346/600VAC @0.8pf 275 kW Amps: 331 248 kW Amps: 298
sKVA vs. Voltage Dip
480VAC 208/240VAC
Alternator kW 10% 15% 20% 25% 30% 35% 10% 15% 20% 25% 30% 35%
Standard 300 303 454 605 757 908 1059 227 341 454 568 681 794
Upsize 1 350 383 575 767 958 1150 1342 280 410 535 640 770 900
Upsize 2 400 387 581 775 968 1162 1356 345 570 835 1100 1450 1710
Fuel Consumption Rates*
STANDBY PRIME
Fuel Pump Lift - in (mm) Percent Load gph lph Percent Load gph lph
36 (900) 25% 6.8 25.7 25% 6.2 23.5
50% 11.7 44.2 50% 10.5 39.7
Total Fuel Pump Flow (Combustion + Return) 75% 15.8 59.8 75% 14.6 55.2
31 gph 100% 19.6 74.2 100% 17.8 67.4
* Refer to "Emissions Data Sheet" for maximum fuel flow for EPA and SCAQMD permitting purposes.
STANDBY PRIME
Coolant Flow per Minute gpm (lpm) 95 (360) 95 (360)
Heat Rejection to Coolant BTU/hr 722,612 656,250
Inlet Air cfm (m3/min) 14,505 (411) 14,505 (411)
Max. Operating Radiator Air Temp Fº (Cº) 122 (50) 122 (50)
Max. Operating Ambient Temperature Fº (Cº) 104 (40) 104 (40)
Coolant System Capacity gal (L) 16.6 (63) 16.6 (63)
Maximum Radiator Backpressure in H
2
O 1.5 1.5
STANDBY PRIME
Flow at Rated Power cfm (m3/min) 780 (22.09) 702 (19.88)
STANDBY PRIME
Rated Engine Speed rpm 1800 1800
Horsepower at Rated kW** hp 449 396
Piston Speed ft/min 1654 1654
BMEP psi 308 277
** Refer to “Emissions Data Sheet” for maximum bHP for EPA and SCAQMD permitting purposes.
STANDBY PRIME
Exhaust Flow (Rated Output) cfm (m
3
/min) 2050 (58.1) 1845 (52.3)
Max. Backpressure (Post Silencer) inHg (Kpa) 1.5 (5.1) 1.5 (5.1)
Exhaust Temp (Rated Output) ºF (ºC) 950 (510) 855 (457)
Exhaust Outlet Size (Open Set) NPT (male) 101.6 (4) 101.6 (4)
3 of 5
SD275 operating data (60Hz)
275 kW Diesel