Our main products are: Insulating oil tester Tangent delta tester CT/PT Analyzer Simulating Test Instrument for Hydraulic Turbine Speed Governor High Voltage Generator Battery Activation Instrument Re-firing Circuit Breaker Tester Oil Dielectric Loss Tester Digital High-voltage AC and DC Table Intelligent Cable Detector Vacuity Tester of Vacuum Switches Power Supply of High Voltage Switchboard Transformer Load Voltage Adjustment Switch Tester Relay Protection Tester Transformer Capacity Testing Device Insulating Tools Testing Equipment Dry Type High-voltage Testing Transformer Insulation Resistance Tester Low Resistance Tester Frequency Adjustable Series Resonance Test Unit Zinc Oxide Lightning Arrester Tester Ground Network Grounding Resistance Tester Transformer DC Resistance Tester Instantaneous Signal Recorder Transformer Load and Noload Tester Full-automatic Transformation Ratio Meter Mechanical Properties Tester