1.1 General introduction
Supplied with the new type different frequency AC power supply, GDDW-III Foot Voltage Tester adopts microprocessor to control and process signal,which solve problems of the interference between test lead wires.
GDDW-III Foot Voltage Tester is used to test grounding resistance in different places such as substation ground network(4Ω),power station,microwave station(10Ω),lightning rod(10)and so on.
1.2 Technique index
Measuring range:0~15Ω
Precision:3%
Measuring current output:AC<3A
Test wires:>φ1.2mm2
Power supply:AC 220V 50Hz
Size:370*270*220mm3
Weight:5kg