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Medium voltage motor control center load discharge device

  • US 20030119344A1
  • Filed: 12/21/2001
  • Published: 06/26/2003
  • Est. Priority Date: 12/21/2001
  • Status: Active Grant
First Claim
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1. An apparatus for electrically earthing a load-side conductor in a controller, said apparatus comprising:

  • a base;

    a lug electrically connected to said load-side conductor and fixedly attached to said base;

    an earthing bar adapted to contact said lug and provide a ground path from said lug, said earthing bar adapted to move between a charged position and an earthed position;

    a ground connection electrically connected to said earthing bar and adapted to earth said earthing bar;

    a spring having a first end and a second end, said first end engaging said earthing bar and said second end engaging said base, said spring providing a motive force for moving said earthing bar from said charged position to said earthed position;

    a charging mechanism for compressing said spring and moving said earthing bar from said earthed position to said charged position;

    an actuating mechanism for releasing said spring and causing said earthing bar to move from said charged position to said earthed position; and

    an operator for tripping said actuating mechanism.

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