Industrial Frequency Series Resonance

Product Introduction

Capacitive Voltage Transformer(CVT) During the verification process, the test frequency must be conducted under the condition of 50Hz, while the on-site geographical conditions are complex. Traditional experimental equipment is now difficult to meet the requirements for on-site transportation and testing, TPXB-The H-type tunable resonant step-up device is the first domestically used tunable resonant device for on-site calibration, and it has been widely applied for the on-site calibration of capacitive voltage transformers rated at 500kV and below in China.

Product Alias

Resonant Boosting Device for CVT Testing, Variable Frequency Resonance, Variable Frequency Series Resonance, Series Resonance, Series Resonant Transformer, Series Resonance Boosting Device for Transformer Testing, Series Resonance Testing Equipment

Product Features

Output voltage and current waveforms are excellent with distortion less than 0.5%.

　　2. Requires a low capacitance, with the required power capacity being 1/Q of the test capacity, and the Q value can be achieved between 20 to 60.

　　3. No overvoltage protection is required. When the test sample is punctured, the system becomes out of tune, the resonant high voltage disappears, and the reactor immediately limits the short-circuit current, preventing further damage to the test sample.

　　4. The device is designed for easy on-site handling, being a dry-type combined series resonant unit composed of an excitation transformer and multiple resonant reactors. Each individual component is compact in size and lightweight.

　　5. The product is enhanced with protection features, including zero-position protection (preventing system startup if the voltage output control knob is not at zero), overvoltage protection, overcurrent protection, and arc protection, ensuring the system's reliability.