By hvhipot 
The high frequency DC high voltage generator is suitable for power departments, power departments of factories and mining enterprises, scientific research units, railways, chemical industries, power plants, etc. to conduct DC high voltage tests on zinc oxide arresters, magnetic blower arresters, power cables, generators, transformers, switches and other equipment , Is an ideal replacement product.
1. When the power switch is turned on, the digital display on the control box does not light up. Please check the power connection and all fuse tubes. If the fuse tube is damaged, please replace it with a new fuse tube according to the amperage marked next to the fuse tube socket.
2. If the power switch is turned on, the digital display is on, the green light for high voltage display is off, and high voltage cannot be applied.
(1) The fault display returns to zero; the light is on and there is no return to zero, please turn the high-voltage output adjustment knob and the fine-tuning knob counterclockwise to return to the zero position to return to zero; the light is off, and the high voltage can be added.
(2) Fault display other; there are two phenomena when the light is on: grounding protection; disconnection protection.
a. It is possible that the ground wire is not connected well, or the ground wire is not reliably grounded. Please connect a reliable ground wire, turn off the power, and restart.
b. It may be that the cable connecting the control box and the high-voltage tower is not connected properly. Please turn off the power and restart after connecting the cable. Or this fault will occur when the welding heads at both ends of the cable are disconnected. Please weld the welding heads at both ends of the cable, turn off the power supply, and restart.
c. It is possible that one of the wires in the control box is disconnected and disconnected. Please re-solder, turn off the power supply, and restart.
3. The high-frequency DC high-voltage generator is all normal, but it is protected in the process of not rising to the rated output voltage.
(1) The fault shows overcurrent; the light is on
a. The sample is short-circuited, or the leakage current is too large.
b. When the load is large capacitance, the boost is too fast, turn off the power supply, restart, and slow down the boost speed.
(2) The fault shows overvoltage; the light is on and the overvoltage protection setting knob is not placed in a large area, please turn it clockwise to the large area, turn off the power supply, and restart.
4. When a short circuit occurs under the high voltage of the test product, due to the large short-circuit current, it is possible to light up all the fault indicators. This is normal. Please remove the test product failure and restart.
5. After the fault of the test product is eliminated, the fault indicator is still on, and the high voltage cannot be applied. Power switch and fault protection reset switch, please turn off the power and restart to boost the voltage.
6. If you find that the number of the voltmeter fluctuates too much, please check whether the 7-pin shield joints of the aviation plugs at both ends of the connecting cable are disconnected. If they are disconnected, please solder them.