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Analysis of short-circuit current for high voltage tester and 200mA verification method
Pages: 43-45
Year: Issue:  12
Journal: Household Appliance Technology

Keyword:  耐压仪升压变压器短路电流Is跳闸电流Ir;
Abstract: 在进行GB 4706.1的13.3章和16.3章的电气强度试验时,对使用设备耐压仪的高压电源容量要求试验电压≥4000V时,短路电流Is≥200mA,跳闸电流Ir≥100mA.而JJG 795检定规程里只有对Ir检定,没有对Is检定,故实验室需要掌握一种验证Is的方法.本文从耐压仪工作原理出发理解Ir和Is,然后分别介绍了间接验证和直接测量Is的方法.
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