Advantages of Brushless Motor in 500KW Cummins Diesel Generator Set

At present, the motors of diesel generator sets can be divided into two types: brushed motors and brushless motors. Now, Guangxi Dingbo Power, a Cummins diesel generator set manufacturer, will introduce the advantages of brushless generator sets.

A brushed generator requires carbon brushes to commutate the current, while a brushless generator uses an energized active component to change the direction of the current. Brushed motors are generally DC motors. They have power losses, but they have a large torque and relatively low costs, and are mostly used in areas where the requirements are not too high. Brushless motors have no mechanical commutation, have a long lifespan, and are stable. However, their drive circuits are relatively more complex.

Before talking about the brushless motor of a 500kW Cummins diesel generator set, let's first understand what a brushed diesel generator is. In a brushed generator, the field winding rotates together with the generator rotor. Because the field winding, like the armature winding, is fixedly installed on the rear end cover of the generator, during operation, the claw-shaped magnetic poles installed on the rotor assembly rotate in the gap between the armature winding and the field winding. A brushed generator requires carbon brushes to commutate the current.

Brushed motors are generally DC motors. They have power losses, but they have a large torque and relatively low costs, and are mostly used in areas where the requirements are not too high. A brushless generator uses an energized active component to change the direction of the current. Brushless motors have no mechanical commutation, have a long lifespan, and are stable. However, their drive circuits are relatively more complex. Nowadays, brushed generator sets have basically been replaced by brushless ones. So, what are the advantages of the brushless motor of a 500KW Cummins diesel generator set?

The brushless motor of the Cummins diesel generator set mainly has six advantages:

1.Stable power supply. The brushless motor of the Cummins diesel generator set is independently powered by an exciter and does not need to rely on others.

2.Extended lifespan. Without brushes, there are no problems such as wear and pollution caused by carbon powder and copper powder.

3.Reduced costs. There is no need to replace carbon brushes, and the maintenance work in this regard is directly avoided.

4.Improved speed. The brushless motor of the Cummins diesel generator set is excited through an AC exciter.

5.Enhanced kinetic energy. During the operation of the whole machine, it can withstand the centrifugal force of high-speed rotation and has good mechanical properties for the rotating rectifier and fast fuse.

6. Special testing. The rotor and its excitation circuit of a 500KW brushless diesel generator set rotate at high speed with the shaft. Therefore, a field discharge device cannot be connected to the rotor circuit. The rotor circuit of the Cummins diesel generator cannot achieve direct field discharge, and of course, it is also impossible to conduct routine inspections of the excitation system (such as rotor current, voltage, rotor insulation, etc.).

Dingbo Power was founded in 1974 and is one of the earliest manufacturers of generators and diesel generator sets in China. If you want get more information, please feel free to send email to [email protected] we will pay highly attention on your question.