Overview The instrument is designed for HV substations and power plants to test the characteristic of large HV transformer, electric machines and appliances, remote power cable or buried cable and other electrical insulation resistance in strong interference environment. It also can be widely used for testing characteristics of insulation resistance in other area. Technical Parameters Technical parameters Measurement voltage range 0.5kV 1kV 2.5kV 5kV 10kV 20kV Measurement voltage accuracy ±(5% 10V) Short circuit current 10mA Measurement range and accuracy Measurement range Resistance measurement range Accuracy 20M 0.01 19.99M ±(5%+3d) 200M 5.0 199.9M ±(5%+3d) 2000M 50-1999M ±(5%+3d) 20G 0.5-19.99G ±(5%+3d) 200G 5.0-199.9G ±(10%+3d) 2000G 50-1999G ±(20%+10d)