AC Hi-pot Sizing
AC Hi-pot Sizing
(OP)
I am looking to conduct an offline partial dischrge test on a synchronous generator. I need an AC Hi-Pot machine with a rating high enough to overcome the winding impedance and bring each phase winding up to phase voltage (10.4 kV). Can anybody tell me how to properly calculate the required output rating for the AC Hi-Pot machine to conduct the test? I had one rated for 3 amps, but it would blow its output fuses before the winding got to full voltage.






RE: AC Hi-pot Sizing
RE: AC Hi-pot Sizing
RE: AC Hi-pot Sizing
RE: AC Hi-pot Sizing
I've heard that VLF can be used, but has some other issues, depending on the PD sensing technology and means of coupling.
RE: AC Hi-pot Sizing
RE: AC Hi-pot Sizing
Benjamin Lanz
Vice Chair of IEEE 400
Sr. Application Engineer
IMCORP- Power Cable Reliability Consultants
RE: AC Hi-pot Sizing
RE: AC Hi-pot Sizing
RE: AC Hi-pot Sizing
Do you know of anyone or any firm who has a database (of any size) of PD values associated with VLF testing of generators?
If you get a chance, please forward the info to me.
Thank you.
RE: AC Hi-pot Sizing