Cable withstand voltage test equipment-what to do if the DC high voltage generator fails: high frequency DC high voltage generator is suitable for electric power departments, power departments of factories and mining enterprises, scientific research units, railways, chemicals, power plants, etc. , Power cables, generators, transformers, switches and other equipment for DC high-voltage test equipment, is the new century products.
Inspection and treatment of failure of high frequency DC high voltage generator:
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 fuses. If the fuses are damaged, please replace them with new ones according to the amperage marked next to the fuse holder.
2. If the power switch is turned on, the digital display will light up, the green light for high voltage display will not light up, and high voltage cannot be applied.
(1) When the fault shows that the "return to zero" light is on and there is no return to zero position, please turn the high voltage output adjustment knob and fine-tuning knob counterclockwise to return to the zero position until the "return to zero" light is off, and then the high voltage can be added.
(2) There are two phenomena when the fault display "other" light is on: grounding protection; disconnection protection.
A. The ground wire may not be 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 a wire in the control box is disconnected and disconnected. Please re-solder, turn off the power and restart.
3. Everything is normal, but it is protected in the process of not rising to the rated output voltage.
(1) Fault display "Overcurrent" 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 display "overvoltage" light is on. 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 and restart.
5. After the fault of the test product is eliminated, the fault indicator is still on and 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.