Current transformer

Current transformer

  • CN 106,663,529 B
  • Filed: 05/12/2015
  • Issued: 03/27/2020
  • Est. Priority Date: 06/10/2014
  • Status: Active Grant
First Claim
Patent Images

1. A current transformer (1) comprising:

  • a sleeve (5) is arranged on the outer side of the casing,a primary conductor (9), the primary conductor (9) comprising two parallel portions (9a, 9b) extending inside the bushing (5) and a hairpin portion (11) arranged outside the bushing (5), wherein the primary conductor (9) is electrically insulated from primary conductor insulation (9c),a tube (15), the tube (15) being arranged around the primary conductor insulation (9c) along the hairpin portion (11) of the primary conductor (9), wherein the tube (15) comprises an electrically insulating material (21) arranged around the primary conductor insulation (9c) along the hairpin portion (11) of the primary conductor (9) such that the electrically insulating material (21) is arranged only in the tube (15),a core (17), the core (17) being arranged around the tube (15), anda secondary winding (19), the secondary winding (19) being wound around the core (17);

    wherein the electrically insulating material (21) comprises a dielectric liquid.

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