Details, Fiction and zct
Details, Fiction and zct
Blog Article
零相変流器の構造について説明します。零相変流器は通常の変流器とほとんど変わりません。使い方が違います。まず下の絵をご覧下さい。
Try to remember, the secondary winding is linked to the earth fault relay, it will secure the rest of the circuit with an additional hello there from a circuit breaker.
零相変流器の二次側に電流が流れる時は、３相の電流のバランスが崩れて、打ち消すことができない時となります。なぜバランスがくずれるのでしょうか。それは、電気回路に１線地絡事故（３相の電線のうち１本の電線から電気が大地に流れた状態）が発生したときということになります。
The influence of ( Īsheath + Īearth ) is canceled if the earthing leads are taken throughout the eye of CBCT. Consequently the protection scheme responds only to (Īa + Īb + Īc) current in the induction motor.
Suited to electrical power transmission and distribution devices and meant to work with measuring or checking devices, or with protecting relays, these bushing CTs (BCTs) may also be applied with GIS or at the side of electricity transformers bushings. Insulation tape or epoxy resin as insulation substance.
Precision: ZCT is built to supply exact measurements with the zero-sequence element of the current, even during the existence of large amounts of sounds or interference.
5kW – DKPP1-4020AB 4P 20AAC21AC23A 415V: 20A: five.5kW 1NO+1NC DKPP1-4032AB 4P 32AAC21AC23A 415V: 32A: 11kW 1NO+1NC DKPP3-4040AB 4P 40AAC21AC23A…
Vast frequency range: HY-ZCT is capable of measuring zero sequence present above a broad frequency variety, which include electric power program frequencies and harmonics. This versatility allows them to capture and evaluate various varieties of faults and process conditions.
Next makers from time to time have further requirements; for example Siemens’ overcurrent, motor safety, line differential (non-pilot)and transformer differential are good to select the above, even though their line differential (pilot wire) and distance relays have to have the above and have added limitations on K’scc
Because of this, site no flux will arise during the Main of CBCT. Therefore, the secondary circuit with the CBCT are going to be completely static.
The installation of the proper variety of CT based upon the precise security wants and also the process’s operational qualities can noticeably greatly enhance program dependability and basic safety.
継電器（リレー）や遮断器とともに漏電遮断器に内蔵されることが多く、事故や火災などの災害につながる漏電を防ぐ上で重要な役割を担っています。 参考文献
상세한 안내를 받고 싶으신 경우 네이버 고객센터로 문의주시면 도움드리도록 하겠습니다. 건강한 인터넷 환경을 만들어 나갈 수 있도록 고객님의 많은 관심과 협조를 부탁드립니다.
Some ideas on how to use hysteresis loop attributes in the manufacture of current transformers Some ideas regarding how to use hysteresis loop properties while in the manufacture of current transformers A present transformer (CT) is undoubtedly an electrical device utilized to evaluate or watch alternating present (AC) in an influence technique. Its working basic principle is based on using the hysteresis properties of magnetic components