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  • Users: rashieda
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  1. rashieda

    Fault clearing

    mpparent, If this is an existing installation, a check of the short-circuit & co-ordination study for your installation will indicate whether the fuse will clear before the main protective device operates. This should be apparent from the co-ordination curves for the transformer feeder.
  2. rashieda

    Substation Transformer Failures

    Tuxedo, was any electrical testing done on the transformer prior to re-energization, and what were the tests done and the results? Were the results deemed acceptable for energising the transformer? Were new 50/51 relays used after the breaker retro-fit, or were the original 50/51 relays used...
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