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Method and devices for extended insulation-fault search using a multifunctional test current
Method and devices for extended insulation-fault search using a multifunctional test current
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机译:使用多功能测试电流扩展绝缘故障搜索的方法和设备
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摘要
The invention relates to a method and to devices for extended insulation-fault search in an IT power supply system using a multifunctional test current, wherein, selectively and depending on the application, the test current functions as a voltage compensation current so as to compensate a voltage increase in an active conductor of the IT power supply system, as a tripping current so as to trip a residual current protection device arranged in a subsystem of the IT power supply system and/or as a leakage-capacitance compensation current so as to compensate a capacitive leakage current. The test current can fulfil more than one of the cited functions simultaneously.
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