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  • Users: alce
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  1. alce

    Delta-Wye transformers: zero sequence effects

    We have carried out two tests on a three-phase delta-wye 3-legged core transformer, to see the effect of a zero sequence current on the transformer voltage. A).- System conditions for test 1 - Delta open ( we open one of the phases) so the zero current can not flow. -We supply the wye side...
  2. alce

    Transformer test

    We have a three distribuiton transformer (1MVA 12.47kV/480V), and we would like to run different test to calculate the following capacitances: - Phase to Phase - Primary to secondary - Phase to ground. I was wondering if anybody knows of any technique/procedure or circuit configuration that...
  3. alce

    High frequency transformer model

    I am studying the impact of vacuum circuit breakers on distribution transformers with different load types. I was wondering if anybody knows where I can get the parameters ( the actual RLC values and equivalent circuit) of a three-phase 1MVA transformer model(12.47kV-480v, delta-wye connected)...

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