WPG138*9
DIESEL GENERATING SET
GENERATING SET RATINGS
50Hz – 1500rpm @ 0.8p.f.
Voltage PRP ESP
V kVA kWe kVA kWe
415/240 125 100 138 110
400/230 125 100 138 110
380/220 125 100 138 110
Engine and block Electrical system
•Cast iron gantry type structure block •12 Vdc electric starter motor and battery charging
•One-piece forged crankshaft alternator
•Separate cast iron cylinder heads and wet liners •Low oil pressure & high water temperature sensors
•Aluminum alloy pistons with oil cooling gallery
Lubrication system
Cooling system •Flat bottom large capacity oil pan
•Radiator and hoses supplied directly mounted on the •Spin-on full-flow lube oil filter
engine
•Thermostatically-controlled system with belt driven Alternator
coolant pump and pusher fan •Brushless, 4 Pole, IP23 drip-proof revolving field
design
Air intake and exhaust system •Class H insulation and Class H temperature rise
•Mid-position and below inlet turbocharger optimized •Low reactance with 2/3 pitch windings on the stator
for genset application •Direct-coupled by flexible disc
•Special rear-mounted air filter with restriction indicator •Sustained overcurrent >300% in 10 sec
•Exhaust manifold shield for heat isolation •Direct drive centrifugal blower fan cooling
Fuel system
Control module
•P-type fuel injection pump and injector for higher
injection pressure •DSE control module is ideal for a wide control range
•Duplex fine filter for better efficiency to manage, monitor, and diagnose quickly and easily.
•Display status message Provide protection Auto
shutdown at fault detection
Weichai Power Co., Ltd.
197 A, Fushou East Street, High-Tech Development Zone, Weifang, China 261061
GENERATING SET SPECIFICATIONS
Governor and regulation class In accordance to ISO 8528-5 Class G2 performance
Phase number and connection 3 phase, 4 wires, Y-type
Cooling method Closed looped water-cooled
Starting method DC 12V Electric starter
Steady-state voltage deviation ≤± 2.5%
Steady-state frequency band ≤1.5%
ENGINE
Brand / Model Weichai / WP6D140E200
Gross Power kWm ESP - 140 / PRP - 128
Cylinder / Type / Aspiration 6 / In-line / Turbocharged and intercooled
Bore x Stroke mm 105 x 130
Displacement L 6.75
Compression ratio 18:1
Brake Mean Effective Pressure kPa ESP – 1659
COOLING SYSTEM
Type of Coolant Liquid (water + 50% antifreeze)
Total Cooling System Capacity (with Radiator) L 13
Max coolant temperature – shutdown °C 105
Cooling Fan Airflow m3/min 304.5
LUBRICATION SYSTEM
Operating Temperature range before Engine °C 78 -105
Oil fuel consumption ratio based on engine fuel
g/kW.hr ≤ 0.1%
consumption data
Total system capacity (including filters) L 19
Type of oil filter Spin-on full flow filter
Weichai Power Co., Ltd.
197 A, Fushou East Street, High-Tech Development Zone, Weifang, China 261061
FUEL SYSTEM
Type of fuel filter Spin-on fuel filter
Min. internal diameter of the supply pipe mm 12
Min. internal diameter of the return pipe mm 12
Max. fuel return restriction Bar 0.12
Max. fuel inlet temperature °C 50
Fuel supply flow L/hr 92
Fuel Consumption (Tolerance +3%)
Rating gr/kWh L/hr
100%ESP 198.7 33.1
100%PRP 198.5 30.2
75% PRP 201.4 23
50% PRP 207.2 15.9
25% PRP 236.6 9.0
EXHAUST SYSTEM
Exhaust Gas temperature after the turbocharger °C 700
Exhaust Gas flow 3
m /min ESP – 23.65 / PRP – 21.82
Max. Exhaust back pressure mBar 60
ALTERNATOR
Brand / Model WEICHAI / WHA-125-4/0.4 LEROY-SOMER / TAL A44 H
Rated Current 180A 192.5A
Coupling / No. of Bearing Direct / Single Direct / Single
Winding Pitch 2/3 2/3
Type of Excitation Self-excitation Self-excitation
Cooling type Air Air
Voltage regulation method AVR AVR
Insurance Class H Class H
Temperature rise Class H Class H
Protection Grade IP23 IP23
Efficiency at 0.8p.f.@100% load 91.7% 89.6%
CONTROL MODULE
Back-lit LCD display
3 Phase generator and 3 Phase Mains monitoring
Monitoring speed, frequency, voltage, current, oil
pressure, coolant temperature and fuel level
Display warning, shutdown and engine status
information
Hours counter provides accurate information for
monitoring and maintenance.
Weichai Power Co., Ltd.
197 A, Fushou East Street, High-Tech Development Zone, Weifang, China 261061
Weichai Power Co., Ltd.
197 A, Fushou East Street, High-Tech Development Zone, Weifang, China 261061
STANDARD CONDITIONS
Standard operating environment: ambient temperature is 5℃~40℃,the altitude is less than 1000m,the
relative humidity is less than 90%(25℃),and there is no dust, sand dust, salt fog, mold, condensation
environment, etc.
If the operating environment exceeds the above requirements, please contact the factory and
consult.
Ambient adaptability protection measures for alternators
Ambient type Ambient description Measures of protection
The air is clean and dry, the humidity is
≤90%, and the distance from the
General Ambient coastline is ≥ 30km; Non-industrial standard configuration
ambient (chemical splash, acid-base
steam, corrosive environment, etc.)
The humidity above 90% or
Humid Ambient Anti-condensation heating
condensation occurs
Anti-condensation heating;
Salt fog crystals are produced in Spray three-proof paint on winding
Salt spray Ambient seaside (< 30km from the coastline) or surface;
island Ambient Spraying epoxy protection for parts and
structures.
The ambient where mining, building Improve the protection level of
Dust Ambient construction, desert Gobi or sandstorm the alternator to IP44;
occur Install filters.
If you need to use protective measures beyond the standard, please contact the factory and consult.
Special working condition
If the operating conditions of the generator meet the following conditions, please contact the factory
and consult.
➢ Multistage parallel operation
➢ Grid-connected operation
➢ As the main power supply, it runs continuously for a long time
➢ The load includes a high power motor type load
➢ Capacitive load
➢ Special ambient such as high temperature, cold and plateau
Weichai Power Co., Ltd.
197 A, Fushou East Street, High-Tech Development Zone, Weifang, China 261061
Ratings definitions
Emergency Standby Power (ESP):
Emergency Standby Power is the maximum power
available for a varying load for the duration of a main
power network failure. The average load factor over
24 hours of operation should not exceed 70% of the
engine’s ESP power rating.
Typical operational hours of the engine are 200 hours
per year, with a maximum usage of 500 hours per
year. This includes an annual maximum of 25 hours
per year at the ESP power rating. No overload
capability is allowed. The engine is not to be used for
sustained utility paralleling applications.
Prime power (PRP):
Prime Power is the maximum power available for
unlimited hours of usage in a variable load application.
The average load factor should not exceed 70% of the
engine’s PRP power rating during any 24 hour period. This outline drawing is to provide representative configuration
An overload capability of 10% is available; however, details for Model series only.
See respective model data sheet for specific model outline
this is limited to 1 hour within every 12 hour period. drawing number.
Do not use for installation design
Ddimension and Weight
Dim “A” Dim “B” Dim “C” Dry wt.*
Structure Model
mm mm mm kg
Open WPG138F9 2475 978 1551 1550
Silence（Elite） WPG138L9 3200 1100 1850 1990
Silence（Premium） WPG138L9 3180 1080 1730 2190
* Note: Weights represent a set with standard features. See outline drawings for weights of other configurations.
Codes and standards
This generating set is designed and manufactured in This generating set has been designed
ISO 9001 facilities certified to ISO 9001. ISO 8528 to comply with ISO 8528 regulation.
The CE marking is only valid when equipment is used in
a fixed installation application. Material compliance
declaration is available upon request.
For more information contact your local Weichai distributor or visit www.weichai.com
Weichai Power Co., Ltd.
197 A, Fushou East Street, High-Tech Development Zone, Weifang, China 261061
