ABOUT HIPOTHV / Development History-HipotHV－Professional Manufacture Lightning Impulse Voltage Generator,Lightning Impulse Current Generator,Resonance Cable Test Device,AC Withstand Voltage Resonance Device,Variable Frequency Series Resonance,No Partial Discharge Withstand Voltage Test Transformer,DC High Voltage Generator For Water Cooled Generator,High Precision Calibration Voltage Divider,Transformer Calibrator,8 Channels Partial Discharge Ultrasonic Positioning System.