Introduction
The 550kW Cummins diesel generator set is a complete set of equipment that uses a diesel engine to drive a three-phase AC generator to output electrical energy. It is used for continuous power supply and backup power support during mains power outages in industrial and commercial settings.
Specification
|
Item |
Specification |
|
Model |
DDI-550 |
|
Rated Power |
550 kW |
|
Standby Power |
605 kW |
|
Brand |
Yangzhou / Dibida (Standard) |
|
Manufacturer |
Dibida Power Equipment (Jiangsu) Co., Ltd. |
|
Generator Type |
Brushless Three-Phase AC Synchronous Generator |
|
Voltage Regulation |
AVR (Automatic Voltage Regulator) |
|
Rated Voltage |
400/230 V |
|
Connection Type |
Three-phase four-wire, Y connection |
|
Efficiency |
92.4% |
|
Insulation / Protection Class |
H Class / IP23 |
|
Temperature Rise |
H Class |
|
Overcurrent Capacity |
3–5 Ie ≥ 5 seconds |
|
Overload Capacity |
3–5 Ie ≥ 5 seconds |
|
Short Circuit Current |
3 times rated current for 2 seconds |
|
Short Circuit Capacity |
3 times rated current for 2 seconds |
|
Winding Material |
100% Copper |
|
Cooling Method |
Self-cooling |
|
Excitation Method |
Self-excited |
|
Telephone Interference Factor |
THF < 2, TIF < 50 |
Features
Short-time overload capacity
100% copper windings and Class H insulation allow the conductor to withstand 3–5 times the rated current for up to 5 seconds.
Short-circuit current support
The response time of the synchronous reactance and excitation system determines the short-circuit current rise characteristics, enabling it to withstand electromagnetic shocks of approximately 3 times the rated current within 2 seconds.
High energy conversion efficiency
Efficiency of 92.4% is composed of copper losses, iron losses, and wind resistance losses, with the energy loss distribution jointly determined by the cross-sectional area of the copper conductor and the magnetic loss characteristics of the silicon steel sheet.

Applications
Data Center Power Systems: Provide three-phase power input to UPS and server power systems during mains power outages.
Industrial Production Power Systems: Drive motors and automated production equipment, serving as primary or backup power.
Construction Site Power Systems: Provide temporary power to equipment and lighting systems at construction sites.
Infrastructure Emergency Power Systems: Maintain basic load power supply for hospitals, communications, and public utilities during grid outages.
Production Facility








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