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Arrangement for detecting short-circuits in switched-off branches of electrical AC power networks, especially in branches for feeding railways
Arrangement for detecting short-circuits in switched-off branches of electrical AC power networks, especially in branches for feeding railways
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机译:用于检测交流电网的断开分支中的短路的装置,尤其是在铁路供电分支中
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摘要
The method involves charging a circuit branch with an operating current. The current is limited under application of a test resistance than that of a circuit resistance of the circuit branch. Superimposition of the operating current at a time period along a fundamental component of a sine wave in the voltage drop at the switch is carried out at a correction angle of between 0 degree and 90 degrees before maximum voltage is reached.
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