zct Fundamentals Explained
zct Fundamentals Explained
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電気の基礎知識 電気の仕組み、発電所から家庭に送られる電気の流れ、直流と交流の違いなどを紹介。
상세한 안내를 받고 싶으신 경우 네이버 고객센터로 문의주시면 도움드리도록 하겠습니다. 건강한 인터넷 환경을 만들어 나갈 수 있도록 고객님의 많은 관심과 협조를 부탁드립니다.
電気設備用語辞典 電気設備で使用される機器、材料、技術、指標や単位を解説したオンライン電気設備用語辞典。
The ZCT is treated like another CT: ratio, polarity, accuracy course (saturation). The sole thought that is commonly distinct is definitely the Actual physical size from the window given that you are going to operate all three period cables via that window.
Don't have access to the manual now but I am rather sure which the 750 also internally calculates the residual (imbalance) of your section currents(most microprocessor relays try this). I feel the manual will get in touch with the calculated residual 50/51N instead of 50/51G. Or something like that. Alan
Bear in mind, the secondary winding is linked to the earth fault relay, it will protect the rest of the circuit with an additional good day from the circuit breaker.
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Considering that electrical motors are delicate to surge latest that will make them split, CBCT is put in to circumvent any earth fault to have an impact on the motor. Enable’s say We've a three stage motor, we install the CBCT with its core becoming read more passed by means of by every one of the a few section motor wires.
In contrast, the full stage latest won't be zero below irregular instances. A zero sequence recent will then stream in the CBCT secondary circuit since the stage existing is out of stability.
難しい内容で、言葉で説明するのは難しいですが、何となく理解できたでしょうか？
Usually when I Use a independent neutral CT I utilize a dedicated relay for that input. Some relays have what is called a "delicate earth" enter. Dedpends on the applying. In both case, it's essential to make your mind up what you have and the way to set the relay.
高圧ケーブルの両端を接地する方式です。高圧ケーブルの亘長が長い場合に採用されます。高圧ケーブルの亘長が長いと、非接地側に誘導電圧が発生して危険になります。これを防ぐ為に両端接地をします。
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