Synch Motor: AC power supply input to brushless excitation
Synch Motor: AC power supply input to brushless excitation
(OP)
Is it a practice to have redundant input power supplies to excitation panel so as to take care of contingency of loss of one supply and consequent motor trip on field failure!
Appreciate sharing your thoughts / experience!
Appreciate sharing your thoughts / experience!






RE: Synch Motor: AC power supply input to brushless excitation
Bill
--------------------
"Why not the best?"
Jimmy Carter
RE: Synch Motor: AC power supply input to brushless excitation
RE: Synch Motor: AC power supply input to brushless excitation
RE: Synch Motor: AC power supply input to brushless excitation
Dual power supplies add complexity whcih can reduce reliability.
RE: Synch Motor: AC power supply input to brushless excitation
This is a 13MW motor running a compressor. The drive is important for production. This company is part of O&G industry.
The issue is not about actual loss of power supply to the excitation panel. It is observed that during transient voltage dips (due to fault elsewhere in the system etc.) the excitation trips the motor. The input supply is monitored just by a simple auxiliary contactor that drops-off during the transient voltage dip leading to trip of the compressor drive.
RE: Synch Motor: AC power supply input to brushless excitation
Bill
--------------------
"Why not the best?"
Jimmy Carter
RE: Synch Motor: AC power supply input to brushless excitation