GDDW-III Earth Grounding Resistance Tester
1.1 General introduction
Supplied with the new type different frequency AC power supply, GDDW-III Earth Grounding Resistance Tester adopts microprocessor to control and process signal,which solve problems of the interference between test lead wires.It is used to test grounding resistance in different places such as substation ground network(4Ω),power station,microwave station(10Ω),lightning rod(10Ω)and so on.
1.2 Technique index
Measuring current output:AC<3A
Power supply:AC 220V 50Hz