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1 交流电源对地电流、电压测试交流电源对地电流、电压测试的接线方法,如图1所示。测交流电源对地电压时,交流电压表一棒接地,另一棒与JZ电源相接,所测电压实际为JF电源接地电压;若另一棒与JF电源相接,则为JZ电源接地电压。各种交流电源未接负载时,两极接地电压之比应不大于3?
1 AC power to ground current, voltage test AC power to ground current, voltage test wiring method, shown in Figure 1. When measuring AC voltage to ground voltage, the AC voltmeter is grounded. The other bar is connected to JZ power supply. The measured voltage is actually the ground voltage of JF power supply. If the other bar is connected to JF power supply, the JZ power supply ground voltage . A variety of AC power is not connected to the load, the bipolar grounding voltage ratio should not exceed 3?