Hi-pot testing - 33kV transformer - voltage and duration?
Hi-pot testing - 33kV transformer - voltage and duration?
(OP)
We have a 33kV transformer about to go for factory acceptance tests, and while this is a relatively small 300kVA unit, am unsure what voltage and duration should be used for the hi-pot test. What is recommended for such a unit? (Of note is that this unit is rated 170kV BIL).
What generally determines the appropriate test voltage and duration? (without simply refering to a standard ... I'm after a more detailed electrical engineering explanation)
What generally determines the appropriate test voltage and duration? (without simply refering to a standard ... I'm after a more detailed electrical engineering explanation)






RE: Hi-pot testing - 33kV transformer - voltage and duration?
You must refer to the standards as the unit is built to some 'standard' and you can only test to meet that standard. Plus consult a professinal testing agency who has experience in this kind of testing. Also check out NETA ATA/MTS.