current differential relay 中文意思是什麼
current differential relay
解釋
差流電驛- current : adj. 1. 通用的，流行的。2. 現在的，現時的，當時的。3. 流暢的；草寫的。n. 1. 水流；氣流；電流。2. 思潮，潮流；趨勢，傾向。3. 進行，過程。
- differential : adj 1 差別的，區別的；特定的。2 【數學】微分的。3 【物、機】差動的，差速的，差示的。n 1 （鐵路不...
- relay : n 1 接替的馬；驛馬；接替的狗；（備有接替馬匹的）旅館。2 接替；接替人員；補給供應。3 分程遞送；傳...
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The mutual inductor of electric current and voltage mutual inductor play an important role in relay protection. prevent from ct differential to protect and miss movement an important subject that the generatrix is protected on the saturation, put forward two electric current pass zero hour linear to spread person who become put into differential to protect in ct in recent years, avoid ct saturation district, can judge the bus bar trouble correctly
但是在母線區外發生短路故障（特別是故障電流含有大量非周期分量）時， ct會出現飽和現象， ct飽和后，不能正確地傳變一次側電流，從而使二次電流發生嚴重畸變，產生很大的差電流，這樣就容易引起誤動作。防止ct飽和時差動保護誤動作一直是母線保護的一個重要課題，近年來提出的在ct二次電流過零時的線性傳變區投入差動保護，避開ct飽和區，能對母線故障做出正確判斷。 -
How to discriminate between internal fault and magnetizing inrush current is the difficulty of transformer protection when apply differential relay
變壓器主保護選擇差動在原理上存在不足，帶來的問題就是如何準確鑒別勵磁涌流與內部故障，這也是目前變壓器保護的難點。 -
Firstly, the paper introduced the commonly hardware configure of microcomputer relaying and the function of every module of industry controlling computer std90386. secondly, the paper introduced several types busbarprotection which was commonly installed on electric power system and the characteristic of mv or lv system with low current grounding. based on it, the paper put forwards the theory of percentage - restraint differential relay. after that, in the discussing every problems of the relaying working the paper put the emphasis on the negative effect of the ct saturation and countermeasure
本文首先介紹了微機保護裝置的一般硬體配置以及作為裝置硬體平臺的std90386工控機各組件模板的功能，然後分析了目前電網系統裝設的母線保護的各種類型以及中、低壓小電流接地電網的特點，在此基礎上分析、介紹了作為本保護動作原理的「比率制動式差動保護」原理。 -
A differential relay is a protective device that is fed by current transformers located at two different series points in the electrical system
差動繼電器作為保護裝置，差動繼電器由位於系統中兩個不同位置的電流互感器提供反饋信息。 -
Differential relay a differential relay is a protective device that is fed by current transformers located at two different series points in the electrical system
差動繼電器作為保護裝置，差動繼電器由位於系統中兩個不同位置的電流互感器提供反饋信息。
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