550kw Cummins Electric Generator

550kw Cummins Electric Generator

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.
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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.

 

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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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FAQ

 

Q: How to determine if the load demand is matched?

A: Matching is determined by calculating the starting current and continuous load power, combined with the generator's short-term overload capacity.

Q: What are the main sources of voltage fluctuations?

A: They are determined by the rate of load change and the AVR excitation regulation response time.

Q: Which parameters should be checked during maintenance?

A: Focus on checking the excitation system output status, winding temperature rise, and voltage feedback sampling signal.

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