Product introduction:

Sparking test machine generally adopts solid AC voltage and single chip microprocessor control technique, the output voltage is stable (not affected by the change of the grid voltage), high sensitivity, no breakdown counting error, strong anti-interference, pointing out the significant characteristics and breakdown, breakdown can be automatically counting, and generate alarm.

Working principle

Sparking test machine is actually a weakness of online testing instruments, it will set the voltage value according to certain rules of periodic loading to the insulation line, and part of the grounding conductor, so the insulation surface forms a voltage difference in the conductor and the insulating layer, which can detect whether there is bad. The cable is passed through the bead chain high pressure pole, and the test voltage is produced by the power frequency high voltage transformer. When the cable insulation is defective, breakdown occurs, that is, the output of high-voltage transformer is short circuited by high voltage. The short circuit current is made up of the electrode insulation defect at the output end of the high voltage transformer, the cable core earth high voltage transformer. Therefore, the spark tester and the core must be grounded well, otherwise the short-circuit current will not form a loop, and it may lead to a dangerous high voltage on the shell of the spark test machine or the cable core.

main parameter

1. input voltage: AC220V 50HZ.
2. output high pressure: 0 ~ 15KV/0 ~ 25KV.
3. maximum line speed: 400 ~ 600m/min 240m/ minutes (American Standard), 480m/ minutes (national standard).
4. electrode length: 600 or 800mm 800mm (American Standard), 400mm (national standard).
The maximum diameter of the 5. sample is: 25 ~ 50mm Phi 25mm.