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Measuring device for determining the leak resistance, earth-leakage resistance and site contact resistance
Measuring device for determining the leak resistance, earth-leakage resistance and site contact resistance
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机译:确定泄漏电阻,漏电电阻和现场接触电阻的测量装置
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摘要
The invention relates to a device for determining the leak resistance or earth-leakage resistance by using a DC measuring voltage (measurement according to DIN 51953), as well as the site contact resistance by using an AC measuring voltage (measurement according to VDE 0100g, §& 24). The measured resistance (RX) sought is, in both cases, determined with the aid of a measuring circuit (7) constructed according to the principle of "voltage comparison" and is output via an evaluation and indication unit (5). IMAGE
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