Hybrid circuit breaker with axial blowout coil

Hybrid circuit breaker with axial blowout coil

  • CN 1,043,547 C
  • Filed: 10/16/1992
  • Issued: 06/02/1999
  • Est. Priority Date: 10/17/1991
  • Status: Active Grant
First Claim
Patent Images

1. volt circuit circuit breaker in a kind has a can (10) that is filled with high insulation resistance gas such as sulphur hexafluoride;

  • Be arranged in a pair of main contacts (11,12) of above-mentioned shell (10);

    Have one by two end plates sealing, be arranged in described shell (10), and in adorn the cylindrical shell (17) of arcing contact (15,16) of the aligning of a pair of and described main contacts (11,12) parallel connection;

    Arcing contact (15,16) is opened and at the operating mechanism (14) of the closed before above-mentioned contact (11,12,15,16) of main contacts (11,12) afterwards at main contacts (11,12);

    And when arcing contact (15, the zone that produces electric arc when

         16) separating in vacuum box (13) produces a coil (22) of axial magnetic field, it is characterized in that;

    described loop coil (22) coaxially is arranged at outside the vacuum box (13) in described shell (10), facing to separating arcing contact (15 at open position,

         16) gap, described coil (22) is arranged in the cannelure (21) on one of described end plate (19), and the diameter of described cannelure (21) is less than the diameter of described cylindrical shell (17).

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