GDBT-701 Battery Activation Instrument

ZGF DC High Voltage Generator

GDXZ Frequency Adjustable Resonance Tester

GDDW-III Ground Network Earth Resistance Tester

GDZC Series Transformer DC Resistance Tester

GDBC-II Full-automatic Transformation Ratio Meter

GDKF Transformer Load tester and transformer Noload Tester

GDKC-2000 Transformer Load Voltage Adjustment Switch Tester

GDBC-901 Full-automatic Transformer Turn Rate Tester

GDTS-201 Hydraulic Turbine Speed Governor Simulating Tester

GDTS-202 Hydraulic Turbine Speed Governor Simulating Tester

GDLB-601 Instantaneous Signal Recorder

GDVA-404 current transformer /power transformer Tester

GDGS high precision automatic dielectric loss tester

GDGY Integrated Precision Oil Tangent Delta Tester

GDGK-303 GIS Mechanical Properties Tester

GDGK-306 GIS Mechanical Properties Tester

GDGK-307 GIS Mechanical Properties Tester

GDYJ-503 Transformer Oil Breakdown Voltage Tester

YJJ-II Insulating Oil Dielectric Strength Tester