matters needing attention:

1. This test equipment should be used by high-voltage testing professionals. Before use, the user manual should be carefully read and repeatedly operated and trained.

2. There should be no less than 2 operators. Strictly follow the safety operation regulations of our unit regarding high-voltage testing when using it.

3. In order to ensure the safety and correctness of the test, in addition to being familiar with the product manual, it is also necessary to strictly follow the relevant national standards and regulations for the test operation.

4. Each connecting wire must not be connected incorrectly, otherwise it may cause damage to the testing device

5. When this device is in use, it outputs high voltage or ultra-high voltage, and must be reliably grounded to ensure safe operation.

Common causes and troubleshooting:

Fan cannot start:

Failure to press' fault reset 'after emergency stop, fault protection, and mismatch protection; Internal temperature too high, thermal protection for power components;

Exclusion method: Check the reliability of the grounding device and whether there are any disconnection points in the grounding connection wire; Check the continuity of the high and low voltage coils of the excitation transformer;

a. Check the continuity of each reactor;

b. Check the continuity of the signal line of the voltage divider;

c. Check the continuity of the high and low voltage capacitor arms of the voltage divider;

d. When the device is boosted, there is no resonance point, and it is necessary to check the on/off of the compensation capacitor; If all components are normal and there is still no resonance point, please contact the manufacturer. The instrument cannot be disassembled!

Phenomenon: The tuning curve is a curve with lower peaks; During the experiment, the primary voltage is high but the high voltage is low. Even before reaching the test voltage, the primary voltage has already reached the rated voltage, and the circuit automatically steps down;

Reason: The capacitance of the reactor does not match that of the test sample, and the resonance point was not accurately found; The sample loss is high and the system Q value is too low; The high voltage output voltage of the excitation transformer is low;

Exclusion method: Connect the compensation capacitor to the test circuit and increase the circuit capacitance; Connect multiple reactors in series as much as possible to increase the inductance of the circuit; Increase the output voltage of the excitation transformer; Dry the test sample to improve its insulation strength and reduce active losses in the circuit; If the problem still cannot be solved after all processing, please contact the manufacturer. The instrument cannot be disassembled!

Wuhan UHV specializes in the production of series resonance (also known as variable frequency resonance test device), engaged in the electrical measurement industry for many years. Its products have first-class quality and welcome customers to come and purchase.