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is comparatively effortless to be familiar with and pertains to the liner portion of a CT characteristic. The voltage and present across a CT are linear only up till a particular price (Generally specified to be a multiple from the nominal rating), after which the CT will saturate and also the curve will level off.
상세하게 안내해 드리지 못하는 점 양해 부탁 드립니다. 모두가 행복한 인터넷
Therefore the magnetic flux expected with the creation of a selected secondary present is lowered to 1-3rd (one/three), and that is the biggest advantage as the overall sensitivity in the safety technique is greater.
Usually After i have a different neutral CT I make use of a dedicated relay for that input. Some relays have what is known as a "sensitive earth" enter. Dedpends on the applying. In both case, you have to determine what you have and the way to established the relay.
地絡時には零相変流器が作動することにより、故障個所を周囲の電気回路からただちに切り離されます。
Well timed detection of floor faults is important to avoiding tools injury, electrical hazards and system failures.
In realistic phrases, Consequently every time a process is operating Typically without faults, the vector sum from the currents in all phases should also be zero, causing no output in the ZSCT.
したがって、通常状態（事故が生じていない）では変流器の２次側には電流は流れていません。電流の不平衡があっても、地絡事故が起きていない限りベクトル合成すると打ち消している状態になりますので、ＺＣＴ２次には電流は流れません。
Several solutions exist to go here dimension latest transformers. This Notice will examine many procedures, with particular focus staying compensated to safety course CTs sized in IEC 60044, that is adopted internationally.
なお、下の記事は私（管理人）が書いた超概念的な内容です。もっと理論的な解説は鹿の骨さんが下さった以下を参照ください。
Main Balance Existing Transformer (CBCT) or Zero Sequence Latest Transformer (ZCT) is a Particular created recent transformer that has a condition of ring, utilized to detect the zero sequence current throughout faults (including limited circuit fault or floor fault) that generates an unbalanced within our 3 stage program.
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