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  • Users: fundam
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  1. fundam

    4Pole Circuit Breakers in LV Substation

    if the distributed transformers are not operated in parallel and connections between the substations are only used as transfer connections, the connections may be configured as a five-phase TN-S system with L1-L2-L3-N and PE. Four phase switching devices (L1-L2-L3 and N) are ,however...
  2. fundam

    Big blackout. What happened?

    as far as I remember, there was an article about the affect of sun on the earth. Although it is rarely, the sun might increase its magnetic field on the world and this might cause phenomenal and strange trips on electrical transmission lines and...

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