Unable to find resonance point

1The wiring is incorrect.

2、Output switch not turned on, ；

3. The PT secondary circuit was not opened when doing GIS;

4. The Q value of the test sample is too low;

5. The initial excitation power is too low;

6. There is a short circuit phenomenon in the test circuit;

7. The frequency range is incorrect.

Exit the experimental state, close the output switch, and check the wiring; openPT secondary circuit;

Increase the starting power（∠30%）；

Measure the insulation of the test sample with a megohmmeter

Reset the frequency range

After resonanceThe voltage cannot rise

1. The Q value of the test sample is too low;

2. Insufficient excitation voltage;

3. There is a ferromagnetic object at the bottom of the reactor;

4threeSub harmonic resonance.

Inspect the test sample;

Change the winding connection of the excitation transformer to increase the excitation voltage

Insulated cylinder frame high reactor or away from ferromagnetic objects.

Host automatic reset

The power supply capacity is insufficient;

The power lead is too long or the wire diameter is too small;

Poor contact at the joint;

Power supply voltage fluctuation;

Button dead contact.

Increase the power supply capacity;

Replace the thicker wire and reduce the length of the wire;

Check the connector;

Reduce power supply voltage fluctuations.

Line tripping after startup

Line leakage protectors are more sensitive;

The capacity of the air switch is insufficient.

Crossing the wiring of residual current devices or air switches;

Replace the air switch with a larger capacity.

voltage dip

Discharge or breakdown of the test sample

Check the test sample

output short circuit

The current exceeds the local current limit.

Check the wiring and test samples.

The voltage of the test sample is inaccurate

The voltage divider ratio is set incorrectly or there is a problem with the signal transmission of the voltage divider.

Reset the voltage divider ratio or check the wiring of the voltage divider.

Voltage flicker

The test voltage fluctuates violently, and the rate of change exceeds the limit value of the machine.

Check the stability of the power supply voltage or changes in the parameters of the test sample.

No current in the circuit

Check the wiring and test samples.

Test sample overvoltage

Manual boosting too fast or out of control.

Change the step distance of voltage regulation or switch to automatic voltage boosting.

System does not resonate

Wiring error or test sampleThe Q value is too low.

Check the wiring and test samples