Frequency conversion earth ground impedance tester wiring diagram and operation method

Frequency conversion earth ground impedance tester wiring diagram and operation method
1, measurement principle diagram and test wiring diagram

R0 loop resistance is about 5~200Ω
Rx test resistance is about 0~200Ω
Rf standard resistance
Measuring current line D: length is 3 to 5 times the length of the diagonal of the ground network; wire diameter: ≥1mm2
Measuring voltage line 1: Length 0.618D; Wire diameter: ≥1.0mm2
Measuring voltage line 2: Connected to the measured network
Measure the ground wire: Connect to the measured ground network.

Frequency earth grounding network impedance tester technical parameters:
1, impedance measurement range: 0Ω ~ 200Ω
2, resolution: 0.001Ω
3, measurement error: ± (reading × 2% +0.005Ω)
4, anti-frequency 50Hz voltage interference capacity: 10V
5, test current waveform: sine wave
6, test current frequency: 45Hz/55Hz 49Hz/51Hz and other groups of automatic double conversion
7, the maximum output current: 3A
8, the maximum output voltage: 400V
9, measuring line requirements: current line copper core cross-sectional area ≥ 2.0mm2
Voltage line copper core cross-sectional area≥1.5mm2
10, power supply: AC220V ± 10%, 50Hz
11. Overall dimensions: 440×350×210
12, the weight of the instrument: 10kg

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