Product Aliases;
Variable Frequency Resonance,Variable Frequency Series Resonance,Series Resonance, Frequency Tuning Series Resonance, Series Resonance Withstand Voltage Test Device, Series Resonance Test Equipment, Cable Withstand Voltage Test Device, Generator Withstand Voltage Device, etc.
Product Introduction;
Variable Frequency Series ResonanceTest Device adopts a multi-stage stacking method. Multiple reactors can be used in parallel or series, and the voltage divider is connected in parallel with the test object to accurately measure the resonance voltage. The resonance frequency can be adjusted within the range of 30 to 300 Hz, with both manual and automatic frequency tuning modes.
The Variable Frequency Series ResonanceTest Device is suitable for AC withstand voltage tests on 10KV, 35KV, 110KV, 220KV, and 500KV polyethylene power cables. It is also applicable for AC withstand voltage tests on 60KV, 220KV, and 500KV GIS. It is suitable for withstand voltage tests on high-voltage cables, generators, large transformers, GIS, CVT, and other capacitive test objects with large capacity and high voltage. The Variable Frequency Resonance Test Device is widely used in industries such as power, metallurgy, petroleum, and chemical, and is suitable for commissioning and preventive tests on capacitive test objects with large capacity and high voltage.
Product Features:
1.The required power supply capacity is greatly reduced; the power required for the test is only 1/Q of the test capacity;
2. Small size and light weight, generally 1/3 to 1/5 of ordinary test devices;
3、The resonant power supply frequency modulation and power components use high-quality imported components from Japan. The design incorporates a resonant filter circuit that improves output voltage waveform distortion, achieving a good sine waveform and effectively preventing harmonic peaks from causing false breakdown of the test object;
4、The variable frequency power supply has strong protection functions and good stability; it supports fully automatic (auto tuning, auto voltage boosting), fully manual (manual tuning, manual voltage boosting), and semi-automatic (auto tuning, manual voltage boosting, and manual tuning, auto voltage boosting) working modes, which can be switched at will; it is easy to operate; it uses 220V or 380V single-phase power, making it convenient for on-site power access;
5、Flexible configuration and strong expandability. The resonant reactors are provided in multiple units, combined in a building-block manner, can be connected in series or parallel, meeting the test requirements of various test objects and making on-site use more convenient;
6、The large-screen touch LED LCD color screen and external mouse allow direct setting of various parameters. Test results can be saved, printed, uploaded, and reviewed.
Product Parameters
1.Resonant voltage waveform: sine wave, waveform distortion rate <1.0% ；
2. Output frequency: 30～300Hz ；
3、Duty cycle: Under full power output, continuous working time 60min ；
4、Quality factor: 30～90 ；
5、Input working power: single-phase 380/220V±10%, 50Hz ；
6、Ambient temperature: -10℃～+50℃ ；
7、Relative humidity: <95%, no condensation ；
8、Scope of application:
1) Cable variable frequency resonance device;
2) Generator power frequency withstand voltage test device;
3) Substation electrical equipment AC withstand voltage test device;
4) Resonance voltage boosting device for CVT testing.
