i have seen one 8.4 MW synchronous motor in a plant located
in bellary it is fixed with brushless rotary
rectifier ,anybody can explain its start up principle
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Answer Posted / Aarti
The start-up principle of an 8.4 MW synchronous motor with a brushless rotary rectifier typically involves the use of a soft starter or star-delta starter to gradually apply power and reduce inrush current during startup. The rotor, which is usually salient pole type, will align with the stator field during acceleration. Once the motor reaches a certain speed, it operates as a synchronous motor and runs at the same speed as the electrical supply frequency.
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