The best Side of zct
The best Side of zct
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There is a slight complication while in the makers know their relays a lot better than we (or perhaps the IEC) do. As general suggestions, you need to constantly refer to the suppliers details:
Relay protection coordination: HY-ZCT plays an important role in relay safety coordination. By precisely measuring the residual current below fault circumstances, they supply enter to protective relays to initiate appropriate protective motion.
T相には地絡点から対地静電容量を通って地絡電流は流れないのでしょうか。
The outcome of ( Īsheath + Īearth ) is canceled in the event the earthing sales opportunities are taken from the eye of CBCT. Therefore the protection plan responds only to (Īa + Īb + Īc) existing inside the induction motor.
一般的な変流器と同様に、円環状の鉄心にコイルを巻き付けた構造を持ち、円環の中央に導体が貫通しています。
Scenario two: Through an earth fault (say LG fault) in an irregular condition, section recent in a few Main cables passing from the center of the present transformer will not stability.
Do not have use of the handbook now but I'm fairly certain the 750 also internally calculates the residual (imbalance) from the stage currents(most microprocessor relays do that). I feel the handbook will get in touch with the calculated residual 50/51N rather than 50/51G. Or one thing like that. Alan
스팸 게시물이 확대 생성되는 것을 방지하기 위하여 문구 및 사용 제한기간을
This enables them to detect floor faults, which might occur each time a fault present-day flows from one or more of your section conductors to floor.
ただし通常の変流器は貫通する導体は１本ですが、零相変流器の場合は３相分の３本となります。
三相のいずれかに地絡電流が流れると、三相のバランスが崩れて零相電流はゼロとなりません。これにより地絡事故をただちに発見することができます。
Contrary to the typical latest transformer, the CBCT gets its Key winding from your a few phase wires passing from the ring go here at its center with the iron core. Its secondary winding is wound for the ring formed iron core and connected to the earth fault relay.
創業１０３年・会社設立７３年、計器用変成器の専門メーカーとして長い歴史で築き上げられた大電流知識とエポキシ樹脂絶縁のモールド技術、そして特殊対応の... タグ付けカテゴリ
受電設備の母線で１線地絡事故が発生した例を示します。地絡ということは、大地に電流が流れたということを指します。大地に流れた”地絡電流”は地絡した相以外の相の電線の対地静電容量を通って電流が流れます。