The series resonance Việc sử dụng nguồn điện siêu cao áp có thể giúp nhiều công nhân điện lực thực hiện các thử nghiệm điện khác nhau một cách thuận tiện hơn.
Phenomenon:
The tuning curve is a straight line, and the instrument indicates no resonance point after tuning
reason:
Poor grounding of the circuit, incorrect wiring of the testing circuit, and open circuit of the instrument and equipment
Elimination method:
1) Check if the grounding device is reliable and if the grounding connection wire is disconnected;
2) Check the on/off status of the high and low voltage coils of the excitation transformer; (Low voltage winding resistance; high voltage winding resistance at each output end vs high voltage tail)
3) Check the continuity of each reactor; (Resistance of each winding)
4) Check the continuity of the voltage divider signal line; (High and low voltage capacity)
5) Check the continuity of the high and low voltage capacitor arms of the voltage divider; (Core 1 hole, shell 2 holes; 1 hole is disconnected from 2 holes)
6) The device itself does not have a resonance point for boosting, and it is necessary to check the continuity of the compensation capacitor;
If all components are normal and there are still no resonance points, please contact the after-sales company and do not disassemble the instrument by yourself!
