By hvhipot 
Series resonance is the use of the principle of series resonance to adjust the output frequency of the variable frequency controller, so that the circuit inductance L and the test sample C resonate in series. The high-voltage reactor L is an important component of the series resonance circuit. When the power frequency is equal to 1/(2 π√ LCX), series resonance occurs with the test sample CX, and the series resonance voltage is the voltage applied to the test sample. Series resonance is mainly composed of variable frequency controller, excitation transformer, high-voltage reactor, high-voltage voltage divider, etc. Series resonance is widely used in industries such as power, metallurgy, petroleum, and chemical engineering, and is suitable for the handover and preventive testing of high-capacity and high-voltage capacitive samples.
Series resonance is suitable for AC withstand voltage testing of 10kV, 35kV, 110kV, 220kV, and 500kV polyethylene power cables;
Series resonance is suitable for GIS AC withstand voltage tests at 66kV, 110kV, 220kV, and 500kV;
Series resonance is suitable for power frequency withstand voltage tests of large transformers, generator sets, and induction withstand voltage tests of power transformers;
Series resonance is suitable for the handover and preventive testing of high-capacity, high-voltage capacitive specimens.
Product features of series resonance:
1. Series resonance automatically searches for resonance frequency, automatically boosts, reduces voltage, and withstands voltage. When the system is automatically tuned, it automatically scans from 30Hz to 300Hz and finally locks the resonant frequency.
2. Series resonance supports multiple test modes such as “automatic tuning+manual voltage regulation”, “automatic tuning+automatic voltage regulation”, “manual tuning+manual voltage regulation”, etc.
3. The series resonance human-machine interaction interface is user-friendly: the experimental parameter settings, experimental control, and experimental results are displayed on the same screen, and it has automatic timing and operation prompt functions.
4. The protection function of series resonance is complete. Overvoltage protection, overcurrent protection, flashover protection, and zero position protection ensure the reliability of the system.
5. Series resonance adopts imported power element core, stable voltage output and frequency output, reasonable electromagnetic compatibility design, and complete protection function,
6. The series resonance has undergone multiple high-voltage direct to ground short-circuit tests, and the system remains intact. At the same time, the system also has strong overload capacity. Other names for series resonance include series resonance, series resonance transformer, variable frequency resonance, variable frequency series resonance, series resonance test equipment, series resonance principle, and series resonance application in series resonance systems.
HV Hipot Electric Co., Ltd. specializes in producing series resonance (also known as series resonance withstand voltage equipment) and has been engaged in the electrical measurement industry for many years. Its products have first-class quality and welcome customers to come and purchase.