Surge Arrestor Test
Surge Arrestor Test
(OP)
Any body is aware of Surge capacitor test standards?
When was the last time you drove down the highway without seeing a commercial truck hauling goods?
Download nowINTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS Come Join Us!Are you an
Engineering professional? Join Eng-Tips Forums!
*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail. Posting GuidelinesJobs |
|
RE: Surge Arrestor Test
RE: Surge Arrestor Test
RE: Surge Arrestor Test
1 - it may take a long time to reach steady state since you have to charge the capacitor. The one minute time listed in NETA probably applies to capacitors where both terminals can be isolated from case/ground (two bushings). I think one minute reading is meaningless.
2 - steady state leakage current can be affected by porcelain coniditon.
Other possibly useful tests:
1 - visual inspection of oil filled capacitors looking for leaks.
2 - power factor test of oil-filled capacitors.
3 - capacitance test of caps which have multiple internal series elements. Shorted cap will be evident.
Westinghouse has published some guidelines for hi-pot testing of dry surge capacitors in one applicaiton I am familiar with. I will take a look at that on Monday if I remember.
I'll be interested to hear if you come accross any standards for surge capacitors.
=====================================
Eng-tips forums: The best place on the web for engineering discussions.
RE: Surge Arrestor Test
=====================================
Eng-tips forums: The best place on the web for engineering discussions.
RE: Surge Arrestor Test
RE: Surge Arrestor Test