Open Frame AC Three Phase Diesel Generator provides 50 kVA prime power with 400/230 V three-phase output, a 120 L fuel tank, brushless alternator and accessible open-frame construction for industrial, construction and standby power applications.
Key Specifications
|
Category |
Parameter |
Standard Value / Configuration |
|
Electrical Output |
Prime Power |
50 kVA / 40 kW |
|
Standby Power |
55 kVA / 44 kW |
|
|
Rated Voltage |
400 / 230 V |
|
|
Frequency |
50 Hz; 60 Hz optional |
|
|
Phase |
3-phase, 4-wire |
|
|
Power Factor |
0.8 lagging |
|
|
Diesel Engine |
Engine Type |
4-cylinder, turbocharged diesel engine |
|
Displacement |
3.9 L |
|
|
Cooling System |
Water-cooled |
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|
Starting System |
24 V electric start |
|
|
Governor |
Electronic, ECU |
|
|
Alternator |
Excitation |
Brushless, self-excited |
|
Winding |
100% copper |
|
|
Voltage Regulation |
AVR |
|
|
Insulation Class |
Class H |
|
|
Protection Class |
IP23 |
|
|
Fuel System |
Fuel Tank Capacity |
120 L, integrated base tank |
|
Fuel Consumption |
7.9 L/h at 75% load; 10.5 L/h at full load |
|
|
Runtime |
More than 11 hours at full load |
|
|
Dimensions & Weight |
Overall Dimensions |
1850 × 760 × 1300 mm |
|
Net Weight |
850 kg |
|
|
Control |
Controller |
Digital microcomputer controller |
Open Frame Design
Carbon-Steel Base Frame
The generator set is mounted on a carbon-steel base frame produced by laser-cut sections and welded assembly. The frame supports the engine and alternator during operation and transport.
Elastomer Vibration Isolators
Elastomer isolators are installed between the engine-alternator assembly and base frame to reduce vibration transfer to the chassis during operation.
Open Access for Inspection & Maintenance
The open-frame layout provides direct access to the engine, alternator, filters, battery, drain points and control panel for routine inspection and service.
Powder-Coated Steel Frame
The steel frame undergoes degreasing and phosphating before powder coating to provide a protective surface finish. RAL color options are available for project requirements.
Engine & Alternator System
Turbocharged Diesel Engine
The engine uses turbocharging, water cooling and electronic governing to support the generator set's specified prime and standby output.
Brushless Alternator
The alternator uses a brushless, self-excited configuration with 100% copper windings, reducing components requiring routine brush maintenance.
AVR Voltage Regulation
An automatic voltage regulator controls alternator output voltage as the connected electrical load changes.
Three-Phase AC Output
The alternator provides 400/230 V, 50 Hz, three-phase, four-wire output in the standard configuration, with other voltage and frequency configurations available as required.
Fuel Consumption & Runtime
Fuel Consumption at Partial Load
Fuel consumption is approximately 7.9 L/h at 75% load.
Fuel Consumption at Full Load
Fuel consumption is approximately 10.5 L/h at full load, based on the 40 kW prime power rating.
Integrated Fuel Tank
The standard configuration includes a 120 L fuel tank integrated into the base frame.
Operating Runtime
The generator provides more than 11 hours of operation at full load with the standard 120 L fuel tank.
Control & Electrical Protection
Digital Microcomputer Controller
The controller monitors generator operating status, electrical parameters and engine conditions, with operating data and alarms displayed through the control panel.
Automatic Start/Stop
The controller supports automatic engine start and shutdown sequences for applications requiring automatic generator operation.
Fault Protection & Alarms
The controller monitors conditions including high coolant temperature, low oil pressure, over/under voltage and frequency abnormalities, with corresponding alarm and protection functions.
RS485 Modbus Communication
The controller supports RS485 Modbus communication for connection to external BMS or remote monitoring systems.
Configuration Options
Output Voltage & Frequency
The standard unit is configured for 400/230 V, 50 Hz. 60 Hz operation, 415 V and other regional voltage configurations are available according to project requirements.
Fuel Tank Capacity
The standard 120 L fuel tank can be adjusted according to required operating duration and installation conditions.
Control Panel & Circuit Breaker
The control panel can be configured according to the project electrical requirements, with circuit breaker options including ABB, Schneider and Chint.
Frame & Identification
Frame dimensions, coating color and OEM nameplate or identification requirements can be specified for project orders.
Applications & Load Suitability
Suitable for construction sites requiring three-phase power for equipment such as motors, pumps and cranes within the generator's rated load capacity.
Suitable for production equipment and machinery requiring a 400/230 V three-phase power supply for continuous or backup operation.
Suitable for agricultural pumping systems and other electrically driven equipment requiring extended generator operation.
Applicable to mining equipment, ventilation systems and commercial facilities requiring standby three-phase power.
Quality Control & Testing
Load Testing
Generator sets are tested at staged loads of 0%, 25%, 50%, 75%, 100% and up to 110% to check operation across different load conditions.
Transient Load Testing
Step-load tests are performed to evaluate voltage and frequency response following sudden changes in electrical load.
Electrical & Functional Checks
Generator output, control functions, protection functions and operating parameters are checked before shipment.
Quality Management
Production follows ISO 9001 quality-management procedures. Product configurations can be supplied with applicable CE and RoHS compliance according to the selected specification.
FAQ
Q: What is the standard production lead time?
A: Standard production takes 25–35 days, depending on the selected configuration and component availability.
Q: What type of fuel does the generator use?
A: The generator uses diesel fuel meeting EN 590 or an equivalent local diesel specification.
Q: Is an ATS available for automatic backup operation?
A: Yes. An ATS can be specified for applications requiring automatic transfer between utility power and generator power.
Q: Can the generator be used in an enclosed generator room?
A: Yes. The open-frame configuration can be installed in a properly ventilated generator room with suitable exhaust, cooling-air intake and discharge arrangements.
Q: What information is required for generator selection?
A: Buyers should provide the required power rating, voltage, frequency, phase, load type, operating duration and installation conditions for configuration confirmation.
Q: Can the generator be supplied with OEM branding?
A: Yes. OEM nameplates, identification markings and specified frame colors can be provided for project and private-label requirements.
