GDDW-III earth resistance tester /earthing resistance analyzer
1.1 General introduction
Supplied with the new type different frequency AC power supply,It 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
Model | GDDW-III Large Multifunctional Earth Resistance Tester |
Measuring range | 0~15Ω |
Precision | 3% |
Measuring current output | AC<3A |
Test wires | >φ1.2mm |
Power supply | AC 220V 50Hz |
Size | 440*460*430mm |
Weight | 28kg |