At present, the vast majority of Cummins diesel generator sets are equipped with brushless alternators, and sometimes users require all-copper brushless generators to be specified in the configuration. So what are the advantages of Cummins generator sets that are equipped with brushless generators to attract users? The voltage of the brushless alternator is stable and meets the voltage requirements of various electrical appliances. There are various voltages for different users to choose. The appearance and structure are beautiful and the drip-proof function is good. Here we share more advantages and performances of the brushless alternator excitation system. The following is the specific content:
Cummins diesel generator sets equipped with brushless alternator excitation system have the following advantages (compared with brushed generators):
(1) Without carbon brushes and slip rings, the maintenance workload is greatly reduced.
(2) The excitation of the brushless generator is independently powered by the exciter, and the power supply reliability is high.
(3) The excitation control of the brushless generator is realized by adjusting the excitation of the AC exciter, so the response speed of the excitation system is slow.
(4) The rotor of the brushless generator and its excitation circuit rotate with the shaft at high speed, so the de-excitation equipment cannot be connected to the rotor circuit, and the generator rotor circuit cannot realize direct de-excitation, nor can it realize the routine detection of the excitation system ( Such as rotor current, voltage, rotor insulation, etc.), special test methods must be used.
(5) The rotating rectifier and fast fuse are required to have good mechanical properties and can withstand the centrifugal force of high-speed rotation.
(6) Because there is no wear of contact parts, there is no pollution to the motor winding caused by carbon powder and copper powder, so the insulation life of the generator is prolonged.
Post time: Apr-26-2022