It can be used for fault current testing, enhancing the device's usability. For safe operation, we've also added a grounding terminal to its housing and securely connected it to the ground wire. For instance, with a 5kV withstand voltage, the output voltage is set between 0V and 650V. The high-voltage terminal is connected to the load, and after each switch is turned on, the withstand voltage output is gradually increased to understand the instrument's alarm. Prepare test data for each group, then calculate the average value, which is the breakdown current value. Note that a 0.5mA reading requires borrowing some resistors, but they should be串联 after our DC load box at 3MΩ, with a 100KΩ potentiometer for readings below 0.5mA, and a 100KΩ potentiometer for adjusting between 0.5-2mA and a 10KΩ potentiometer. Aviation ground power 2, 36V aviation power 1, 400Hz variable frequency power supply 7, 115/200V power supply 2, 27V DC power supply 5, 400Hz power supply 12, aviation power supply.
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