12V275GL+

275GL™ Series Gas Enginator Generating System ®

2600 kWe @ 50 Hz (1000 rpm)

2330 kWe @ 60 Hz (900 rpm)

Specifications
Cylinders: V12
Engine Displacement: 13048 cu. in. (214 L)
Bore & Stroke: 10.83" x 11.81" (275 x 300 mm)
Compression Ratio: 9:1
Jacket Water System Capacity: 100 gal. (379 L)
Lube Oil Capacity: 220 gal. (883 L)
Starting System: 150 psi (10.3 bar)
Dry Weight: 97,444 lb. (44,200 kg)

+ 0.5 gm NOx / 1.8 gm CO / 0.7 gm NMHC Capability

Meets 2010 U.S. EPA Spark Ignited New Source Performance Standard
(SI NSPS) for NOx, CO and NMHC’s without emission aftertreatment

Standard Equipment
AIR INLET AND EXHAUST SYSTEMS ENGINE PROTECTION DEVICES – Engine emergency shutdown/starter lockout
Air Cleaner - Two, dry panel type with mechanical gauge for remote mounting palm button (2) mounted, one wired on either side of the engine. Engine protection
(shipped loose). is also provided by ESM for: lube oil pressure and temperature, intake manifold
Air Inlet Connection – Two 11" (280 mm) B.C. horizontal inlet flanges temperature and pressure, overspeed, and jacket water temperature.
Exhaust Manifold – Dry with protective insulation. FLYWHEEL – Mounted, with 291 tooth ring gear. Machined for generator coupling.
Exhaust Outlet – Two 11 5/8" B.C. (295 mm) horizontal outlet flanges. FLYWHEEL GUARD – Fabricated steel guard for protection of the rotating
components is mounted to the engine–generator base.
BARRING DEVICE – Manual.
FUEL SYSTEM – Carburetor with precombustion circuit. Single fuel inlet
BASE – Engine and generator are mounted and aligned on a structural steel connection, mounted main and prechamber gas supply regulators and 24V DC pilot
fabricated base designed for mounting on an isolated concrete pad and operated prechamber fuel valve. Shipped loose 24V DC pilot operated main fuel
suitable for lifting. Base must be fully grouted in place according to Waukesha valve.
recommendations.
GENERATOR – Open dripproof, direct connected, fan cooled, 2/3 pitch, A.C.
CAMSHAFT – Consists of individual segments, one per cylinder, bolted together. revolving field type, anti-friction grease lubricated bearing(s), with brushless PMG
CONNECTING RODS – Low alloy, forged, fully machined. type exciter and damper windings. TIF and deviation factor within NEMA MG-1.32.
CONTROL SYSTEM – Waukesha Engine System Manager (ESM®) integrates Voltage: 4160 V or 13,800 V, 3 phase, 6 wire WYE, 60 Hz, and 3300 V, 6300
spark timing control, speed governing, detonation detection, NOx control, air fuel V or 11000 V 3 phase, 6-wire, WYE, 50 Hz. Insulation material NEMA Class F.
ratio control, turbocharger wastegate control, turbocharger compressor bypass Temperature rise within NEMA (105° C) for continuous power duty. All generators
control, start-stop control, diagnostic tools, fault logging and engine safeties. are rated at 0.8 power factor. Includes terminal standoff assembly and space heater,
Engine Control Unit (ECU) is central brain of the control system and main customer 115/230 V, 1 phase.
interface. Interface with ESM is through 25 foot (7.6 m) harness to local panel, GOVERNOR – Electric throttle actuator controlled by ESM with throttle position
through MODBUS RTU slave connection RS-485 multidrop hardware, and through feedback. Governor tuning is performed using ESP.
the Electronic Service Program (ESP). Customer connections are only required to the IGNITION SYSTEM – Ignition Power Module (IPMD) controlled by ESM, with
local panel, fuel valve, and 24VDC power supply. Compatible with Woodward load spark timing optimized for any speed-load condition. Dual voltage energy levels
sharing module. ESM meets Canadian Standards Association Class I, Division 2, A, automatically controlled by ESM to maximize spark plug life. Shielded ignition
B, C & D (Canada & US) hazardous location requirements. components meet Canadian Standard Association Class 1, Division 2, Group A, B, C
CRANKCASE – Single piece, stress relieved, gray iron casting. Main bearing caps & D (Canada & US) hazardous location requirements.
are retained with vertical studs and lateral tie bolts. INTERCOOLER – Air–to–water, for 130° F (54° C) inlet water.
CRANKCASE PRESSURE RELIEF DOORS – Seven mounted on side of crankcase. JUNCTION BOXES – Junction boxes for Enginator wiring and external connections.
CRANKCASE VENTILATION SYSTEM – Forced ventilation with 230V AC/1 ph LUBRICATION SYSTEM – Gear driven, externally mounted gear type pump with
blower, restriction valve, and check valve. 4” blower outlet for customer connection pressure regulator and bypass circuit. Fully mounted and integrated plate type
per local codes. Motor starter shipped loose. Single 3” (76.2 mm) round pipe oil cooler and full flow lube oil filters. Includes centrifugal oil bypass filtration
connection. for maximum oil and filter life. Intercooler and lube oil cooler plumbed in series.
CRANKSHAFT – Low alloy, forged, fully machined, counterweighted with seven Includes electric motor driven pre/post lube pump
main bearing journals. The crankshaft is flanged for full power transmission from PAINT – Oilfield orange.
each end. Bearings are heavy duty, replaceable, precision aluminum type. PISTON – Single piece, aluminum alloy with integrally cast cooling passages. Four
CYLINDER HEAD – Twelve interchangeable, bore–cooled with two hard faced intake piston rings with the top two compression rings housed in a Ni–resist ring carrier.
and two hard faced exhaust valves per head. Includes stainless steel intake and exhaust 9:1 compression ratio.
valve seats and prechamber fuel control valves. No head gaskets are required. STARTING SYSTEM – One TDI 112 turbine pneumatic starter with 24VDC starting
CYLINDER LINER – Removable wet type with intermediate jacket water guide. valve and strainer. Requires 150 psig (10.3 bar) air/gas supply.
ELECTRONIC SERVICE PROGRAM (ESP) – Microsoft® Windows-based program TURBOCHARGER – Two, exhaust driven. Wastegate and compressor bypass
provided on CD-ROM for programming and interface to ESM. Includes E-Help for actuators controlled by ESM.
troubleshooting any ESM faults. Serial harness is provided for connection of a VIBRATION DAMPER – Enclosed, hydrolastic type.
customer supplied laptop to the ECU RS-232 port.
VOLTAGE REGULATOR – SCR static automatic type, providing 1% regulation from
ENGINE MONITORING DEVICES – Factory mounted Display for NOx emissions no load to full load with automatic subsynchronous speed protection. Three phase
with improved ESM user interface, display system and emissions controls. Wired sensing. Includes voltage adjustment rheostat. All items are shipped loose.
sensors for NOx emissions, lube oil pressure and temperature, intake manifold
temperature and pressure, overspeed; and jacket water temperature; all accessible WATER CIRCULATION SYSTEM
through ESM. ESM continually monitors combustion performance through Auxiliary Circuit – Includes mounted 130° F (54° C) auxiliary water temperature
accelerometers to provide detonation protection. Dual magnetic pick-ups are control valve with mounted bypass, gear driven water pump, mounted intercooler,
used for accurate engine speed monitoring. ESM provides predictive spark plug and mounted oil cooler. Provides single customer inlet and single customer outlet
diagnostics as well as advanced diagnostics of engine and all ESM sensors and connection.
logs any faults into non-volatile flash memory. K-type thermocouples for individual Engine Jacket – Includes mounted 180°F (82°C) jacket water temperature control
cylinder exhaust temperatures and pre and post turbocharger temperatures valve with mounted bypass and gear driven water pump. Provides single customer
are wired to a common bulkhead. Includes standard 25 foot (7.6m) exhaust inlet and single customer outlet connection.
thermocouple harness. Main bearing temperature sensors-Type K sensors are wired
to bulkhead. Includes 25 foot (7.6 m) main bearing thermocouple harness.
PERFORMANCE DATA: 12V275GL+ Gas Enginator® Generating System
1000 RPM 900 RPM
Intercooler Water Temperature 130°F (54°C) 50 Hz 60 Hz
0.5 gm NOx 0.5 gm NOx
kWe Rating 2600 2330

BSFC (LHV) Btu/bhp-hr (kJ/kWh) 6475 (9161) 6408 (9066)

Fuel Consumption - Btu/hr x 1000 (kW) 23472 (6873) 20922 (6126)

NOx g/bhp-hr (mg/Nm @ 5% O2)

3
0.5 (235) 0.5 (240)
Emissions

CO g/bhp-hr (mg/Nm3 @ 5% O2) 1.8 (845) 1.8 (845)

NMHC g/bhp-hr (mg/Nm3 @ 5% 02) 0.7 (325) 0.7 (325)

THC g/bhp-hr (mg/Nm3 @ 5% O2) 6.0 (2500) 6.5 (2700)

Heat Rejection to Jacket Water Btu/hr*1000 (kW) 2106 (617) 1886 (553)
Balance

Heat to Lube Oil Btu/hr*1000 (kW) 873 (256) 742 (217)

Heat

Heat Rejection to Intercooler Btu/hr*1000 (kW) 2057 (603) 1715 (503)

Total Heat to Auxiliary Btu/hr*1000 (kW) 2930 (859) 2457 (720)

Induction Air Flow SCFM (Nm3/hr) 8931 (13727) 8178 (12570)

Exhaust
System
Intake/

Exhaust Gas Flow Rate lb/hr (kg/hr) 42107 (19100) 38525 (17475)

Exhaust Stack Temperature °F (°C) 853 (456) 822 (439)

Typical heat data is shown, however no guarantee is expressed or implied. Consult your Dresser Waukesha Application Engineering Department for system
application assistance.
All natural gas engine ratings are based on a fuel of 900 Btu/ft3 (35.3 MJ/nm3) SLHV, with a 91 WKI®. For conditions or fuels other than standard, consult the
Dresser Waukesha Application Engineering Department.
Data based on standard conditions of 77°F (25°C) ambient temperature, 29.53 inches Hg (100kPa) barometric pressure, 30% relative humidity (0.3 inches HG / 1
kPa water vapor pressure).
Performance ratings are based on ISO 3046/1-1995 with mechanical efficiency of 90% and Tcra limited to ± 10° F.
Fuel consumption based on ISO3046/1-1995 with a tolerance of +5% for commercial quality natural gas having a 900 BTU/ft3 (35.3 MJ/nm3) SLHV.
Heat rejected to auxiliary circuit is sum of heat rejected to intercooler and lube oil.
kWe ratings shown at 0.8 pf with 6.3 kV generator (50 Hz) and 13.8 kV generator (60 Hz).
Rating Standard: Ratings are based on ISO 3046/1-1995 with an engine mechanical efficiency of 90% and auxiliary water temperature Tcra as specified
limited to ±5°C (±10°F). Ratings also valid for SAE J1349, DIN 627, BS 5514 and AP17B-11C standard atmospheric conditions.
ISO Standard Power/Continuous Power Rating: The highest load and speed which can be applied 24 hours per day, seven days per week, 365 days per
year except for normal maintenance.
No overload available.
Consult your local Waukesha representative for system application assistance. The manufacturer reserves the right to change or modify without notice, the design or
equipment specifications as herein set forth without incurring any obligation either with respect to equipment previously sold or in the process of construction except
where otherwise specifically guaranteed by the manufacturer.
L W

L in (mm) W in (mm) H in (mm) Avg. Wt. lb (kg)

307 (7801) 94 (2377) 140 (3556) 97444 (44200)
Dresser, Inc.
Dresser Waukesha
1101 West St. Paul Avenue
Waukesha, WI 53188-4999
T. 262 547 3311
F. 262 549 2795

Bulletin 7118 0810

© 2010 Dresser, Inc. All rights reserved. Waukesha, WKI, 275GL and ESM are trademarks/
registered trademarks of Dresser, Inc., Dresser Waukesha www.dresser.com/waukesha