３相分の電流を一括して変流器に通すと、３相分の電流をベクトル合成した電流が２次側に流れます。ベクトル合成された電流はどうなるのでしょうか？実は対称３相交流３相分の電流を合成させると”０”になるのです。対称３相交流は、各相とも同じ大きさでそれぞれが１２０°ずつ位相がずれているのでこのようになります。
Relay protection coordination: HY-ZCT performs a vital job in relay safety coordination. By properly measuring the residual existing under fault problems, they provide input to protecting relays to initiate proper protecting action.
Therefore, the CBCT’s secondary-related earth fault relay will turn out to be activated, isolating the wellbeing method by using a circuit breaker.
"Safety" CT's are manufactured in an effort to maintain accuracy at present-day amounts considerably in excess of their nominal values, generally twenty occasions nominal, so as to insure proper representation of currents beneath fault disorders.
零相変流器の２次側に保護継電器を設置しておき、電流が流れたら遮断器を開放するようにしておけば地絡事故発生した場合に迅速に故障箇所を電気回路から切り離すことができます。これが零相変流器の設置目的と使用法です。
電流には必ず行きと帰りがあり、通常その電流の大きさは同じになります。しかし地絡が発生すると、電流が正常な回路を通らずに大地を通って帰っていきます。これを漏電とも表します。
In addition, since the three period system recent is well balanced, the number of secondary turns of CT is just not important to deliver the cable’s rated recent simply because no secondary recent flows less than regular working ailments.
専門用語の解説 再生可能エネルギーとは？わかりやすく解説 再生可能エネルギーとは、自然界に存在する無限に再生可能な資源を利用して発電する方法です。太陽光、風力、水力、地熱、バイオマスなどの自然現象や物質を活用し、エネルギーを産出します。化石燃料とは異なり、枯渇することがなく、環境にやさしいのが特徴です。このため、持続可能なエネルギー源として世界中で注目を集めています。
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Floor Fault Detection: One of several major programs from the HY-ZCT is ground fault detection. By measuring zero sequence current, these transformers can identify the existence of floor faults, which arise when existing flows from a section conductor to ground.
Frequency response: ZCT is made to work around an array of frequencies, normally from 50Hz to 400Hz, that makes them appropriate for use in many different applications.
상세한 안내를 받고 싶으신 경우 네이버 고객센터로 문의주시면 도움드리도록 하겠습니다. 건강한 인터넷 환경을 만들어 나갈 수 있도록 고객님의 많은 관심과 협조를 부탁드립니다.
As a result, the magnetic flux wanted to create a certain secondary present-day is reduced to one-3rd (1/three), which can be the best zct reward given the enhanced overall sensitivity with the protecting method.