1. Equipment Connection: With the power disconnected, use the provided cables to connect the control box to the voltage doubling cylinder accordingly, then connect the ground wire, and finally plug in the power cord. Note: All ground wires of the control box, voltage doubling cylinder, discharge rod, etc., must be connected to the ground terminal of the test object collectively; they must not be connected in series with each other.
2. No-Load Test to Check Equipment Integrity: Before starting the test,the DC high voltage generatormust first undergo a no-load test to verify its integrity. After confirming the connections are correct, plug in the power socket, turn the adjustment knob fully counterclockwise (the device has a zero-position protection function; voltage increase must start from zero, otherwise it cannot be raised), press the power switch, and the power indicator will light up. Wait a few seconds for the system to stabilize, then press the start button. At this point, the high-voltage indicator will light up, indicating that voltage can be increased. Slowly turn the output voltage adjustment knob clockwise, and you will seethe DChigh voltage generatorvoltmeter reading also gradually rises. Note: If the voltmeter reading does not change, immediately turn off the power and check whether the connections are correct. If it is a device malfunction, contact the manufacturer; do not open the instrument without authorization. After turning off, for safety, use a discharge rod to discharge the high-voltage terminal of the voltage doubling cylinder before disconnecting wires.
3. Shutdown: Generally, after the test is completed, before shutting down, you must first adjust the voltage to zero, then press the stop button. The working indicator will go off, the power indicator will remain on, then turn off the power switch, unplug the power socket, and use the discharge rod to discharge. If the above steps for the DC high voltage generatorare normal, the instrument is in good condition and can be used for testing. Note: Wait at least one minute before turning it on again.
4. Performing Withstand Voltage or Leakage Test on the Test Object: After verifying the instrument is in good condition, attach the water resistor, microammeter, and test object to the high-voltage terminal of the voltage doubling cylinder. After confirming the connections are correct, proceed with the test following the voltage increase steps described above. This device has overcurrent and overvoltage protection functions. If the high-voltage indicator suddenly goes out during the test and the voltmeter indicates no high voltage, the protection circuit has been activated. Turn off the power, investigate the cause of the protection, and after eliminating the fault, you can increase the voltage again for testing. The voltage increase speed should not be too fast; it is recommended to increase at a rate of 3-5% of the test voltage per second. For test objects with large capacitance, the current should not exceed 80% of the rated value.
