Product Description: Transformer GIS SF6 switch CT/PT insulator bus bar cable bushing and others capacitive devices are the common primary electric equipments. The complete set of frequency conversion series resonance test equipment is mainly used for ac withstand voltage test of cross-linked cable hydraulic generator main transformer bus GIS etc. The complete set of frequency conversion series resonance test equipment is mainly composed of frequency conversion control power supply excitation transformer reactor capacitor voltage divider and compensation capacitor (optional). Product Parameters: technical parameter Rated output voltage 0 1000kV and below output frequency 30 300Hz Resonance voltage waveform Pure sine wave waveform distortion rate 1.0% Working time Full power continuous working time of 60min Quality factor 30~90 Frequency regulation sensitivity 0.1Hz Instability 0.05% Working power supply Single-phase 220V or three-phase 380V ±10% Power frequency 50Hz ±5%