I usually work on tube audio, so we as a group have been installing movs to lessen the shock to transformers and filaments for a while, and filter caps when converted to s/s rectifiers
toggle quoted message
Show quoted text
Scott,
?
I worked on three phase power supplies that had some premature transformer failures.
?
The engineers had us install MOVs across the primary windings for all three phases.
?
Never seen another transformer failure afterwards.
?
Dave
W9HF
?
?
I wonder if a MOV could be somehow used to soften the inrush, if not one perhaps 2 in some kind of toggle arrangement.
