HVTester
Electrical
- Feb 7, 2005
- 4
I have a 22KV 3 phase VT with the star point going to a small bushing before being Earthed. I need to do a pressure test on the VT . It has been some years since I have done this and cannot remember how. I seem to remeber leaveing the earth conected and just putting the HV on the 3 bushings shorted together with the secondary shorted and earthed but cannot remember what value we used . If the star point is not earth it will flash over anyhow at not to high a voltage . I would appreciate any advice.