Three phase relay protection tester several common troubleshooting methods:
I. Impedance characteristic test, voltage break closed.
Treatment methods:
If the three-phase relay protection tester is not reset, there will be failures. This is because the recovery time of parameters is incorrectly set, so please set it to be greater than the protection recovery time.
2. When the power amplifier switch is switched on, the power of the power supply does not change significantly, and all function menu tests have no fault output.
Treatment methods:
As the power supply insurance is burned out, replace the same form of power supply insurance immediately.
Three, open the power switch, you can hear the sound alarm sound.
Treatment methods:
Turn off the power switch, reset the amplifier switch, and turn on the power.
Four, protection test contact with potential time of the whole group, the action is not protected.
Treatment methods:
Check the wiring and reverse connect the high potential and low potential.
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