The smart Trick of zct That Nobody is Discussing

The smart Trick of zct That Nobody is Discussing

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零相変流器の単線結線図では記号に３が書いてありますが、この意味はこの接続法を表しています。

The initial rationale I built this post was that for the duration of a the latest ground fault inside the process, we discovered that several of the relays were tripping incorrectly (or mysteriously), that is certainly, a number of the upstream breakers ended up tripped imagining it had been a ahead fault present-day, when actually, and we believed, it should be reverse (i.

　最後にここまでのおさらいとしてもう一度変流器と零相変流器の違いを示します。

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รับประกอบตู้ไฟฟ้า – ตู้ควบคุมทุกชนิด

As a result earth fault relay connected With all the secondary CBCT will get energized and it isolates the wholesome process with the assistance of the circuit breaker.

  Do not have usage of the guide now but I am reasonably confident the 750 also internally calculates the residual (imbalance) website from the phase currents(most microprocessor relays try this).  I feel the manual will get in touch with the calculated residual fifty/51N in contrast to fifty/51G.  Or anything like that. Alan

日本語が含まれない投稿は無視されますのでご注意ください。（スパム対策）

何らかの原因で３相の電流のバランスが乱れると、コイルに二次電流が瞬間的に流れ、地絡として検出されます。

そのためあらかじめ漏電遮断器に内蔵され、絶えず事故検知の役割を担っています。 零相変流器の使用用途

The set up of the right kind of CT determined by the particular safety demands along with the method’s operational qualities can substantially greatly enhance program trustworthiness and safety.

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This permits the secondary turns to be optimized in accordance With all the CT’s genuine Most important pickup present.

Due to this fact, the magnetic flux needed to produce a specific secondary present is lowered to 1-third (1/three), which is the very best profit supplied the improved In general sensitivity in the protecting process.