Series resonant boost device

When calibrating a capacitive voltage transformer (CVT), the test frequency must be at 50Hz. At the same time, the geographical conditions on site are complex, and traditional experimental devices are difficult to meet the requirements of on-site handling and testing. The series resonant boosting device is an adjustable resonant device used for on-site calibration in China, and has been widely used for on-site calibration of capacitive voltage transformers of 500kV and below in China.

UHV (H) series resonant boost device (CVT)Alternative names: CVT inspection resonant boost device, variable frequency resonance, variable frequency series resonance, series resonance, series resonance transformer, series resonance boost device for transformer calibration, series resonance test equipment, series resonance boost device

Product parameters

technical parameters

Note:

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UHV (H) series resonant boost device (CVT)feature

1. Due to full compensation of resonant reactive power, the power of the power supply and equipment is only less than 1/10 of the required capacity of the test sample (1/Q>10); The device has a small volume, light weight, large output capacity, and requires a small power supply capacity. It is inexpensive, easy to operate, and safe to use;

2. Series resonance is actually a current filtering circuit, which makes the current passing through the test sample basically the fundamental current, and the waveform distortion rate (THD) of the output voltage is extremely small, which is superior to all types of existing AC withstand voltage equipment;

3. The short-circuit current after flashover or breakdown of the test sample is only 1/10 or less of the pre short-circuit test current (1/Q), which can effectively prevent the expansion of damage to the fault point after breakdown;

4. Immediately after flashover, the arc will be automatically extinguished, and the process of establishing the resonant state voltage after extinguishing the arc is relatively long (in seconds), which is a steady-state establishment process without considering voltage overshoot or the danger of restoring overvoltage in microsecond level and millisecond level transient processes.

Product Portfolio

Product Attachment Diagram

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