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DIELECTRIC VOLTAGE WITHSTAND TEST - INDUCED POTENTIAL
- V% E, h+ [( t) w/ U# D/ ~ METHOD----Following the Applied Potential tests, the [primary] [secondary] winding of each transformer was subjected to an alternating potential of twice the [primary] [secondary] voltage rating as tabulated below. During these tests, the [primary] [secondary] windings were open. The frequency of the applied voltage was 400 Hz and was maintained for a period of 18 s.6 D8 g+ J" T# u. d& B% q
问题是:次级也需要做这个测试吗?
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