Intellight earth-fault circuit breaker with reverse connection protection

Intellight earth-fault circuit breaker with reverse connection protection

  • CN 100,370,570 C
  • Filed: 02/05/2005
  • Issued: 02/20/2008
  • Est. Priority Date: 02/05/2005
  • Status: Active Grant
First Claim
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1. intelligent ground-fault interrupter with reverse-connection protection is characterized in that:

  • comprising;

    the actuating mechanism of a ground-fault interrupter, a balanced adjusting device of contact static pressure and a pressure responsive resistor failure protective device, wherein,The actuating mechanism of described ground-fault interrupter comprises;

    a permanent magnet (202) is positioned at the position contiguous with a soft magnetic bodies (312);

    A soft magnetic bodies (312) is positioned at a sleeve, and this soft magnetic bodies (312) drives moving contact (305) and moves up and down under the effect of magnetic force;

    A closing coil (310) is wrapped in an end of the nearly permanent magnet (202) of sleeve;

    A broken coil (311) is wrapped in an end of the permanent magnet far away (202) of sleeve;

    The balanced adjusting device of described contact static pressure, its balance adjustment rack (308) forms one with soft magnetic bodies, in described balance adjustment rack (308), be provided with and adjust piece (309),, guarantee fully contacting of moving contact and fixed contact by the swing of described adjustment piece (309);

    AndDescribed pressure responsive resistor failure protective device by detecting the inefficacy magnitude of leakage current of piezo-resistance, when reaching predetermined value, cuts off the power line loop of piezo-resistance.

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