Dual Delta-Wye Secondary Transformer Question
Dual Delta-Wye Secondary Transformer Question
(OP)
Why would a medium voltage (2300v)AC variable speed drive have a dual secondary (6 leads out) supply transformer feeding the the front side (12 pulse rectifier)of the drive?
Is this transformer needed of does it serve some added benifit?
Is this transformer needed of does it serve some added benifit?





RE: Dual Delta-Wye Secondary Transformer Question
RE: Dual Delta-Wye Secondary Transformer Question
Higher pulses of rectifier gives you less ripples in the DC output. 3 phase input rectifier will give 6 pulse output. Likewise you can have 18 pulse and 24 pulse rectifiers, if you can feed with more inputs differing in phase angles, using appropriate no of secondaries shifted in phase with each other.
Rafiq Bulsara
http://www.srengineersct.com
RE: Dual Delta-Wye Secondary Transformer Question
Rafiq Bulsara
http://www.srengineersct.com
RE: Dual Delta-Wye Secondary Transformer Question
(David don't you think your answer was a tad-bit too general?)