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Recent content by mbalea

  1. mbalea

    lightning arresters and cutouts on 25kV lines

    In this arrangement, the Surge Arrester is installed between phase and ground. The cut-out fuse is in series, and usually protects a transformer. Now, if the transformer is grounded, than a portion of the current shall go thru. Normally, the transformer insulation level (BIL) is at least as...
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