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ZXDW-5A Large-scale Grounding Grid Earth Resis

This device applies to test power-frequency ground resistance, contact voltage, pace voltage and earth electric resistivity. Can test substation grounding grid (4Ω), fire and water electric power plants, microwave stations (10Ω), lightning rod multi-purpose model (10Ω). It adopts different frequency anti-jamming technique, can get the data under 50Hz in strong interference circumstance. The maximum measured current is 5A, which will not cause the electric potential of the grounding device too high, it with strong anti-interference ability at the mean time, so it does not need power off during the test .

Technical indicators
Impedance measurement range0150Ω (Including current pile impedance)
Measurement error±(reading×2+0.002Ω)
Maximum output voltageAC 400V (45Hz55Hz, double frequency, sine wave)
Maximum output current5A (45Hz55Hz, double frequency, sine wave)
Current output gear5 / 4.5 / 4 / 3.5 / 3 / 2.5 / 2 / 1.5 / 1A, 0.5A/gear, total 9 gears
Anti-jamming capabilityAnti- frequency 50Hz voltage 10V
Measured wire required valueSection surface of current wire copper core≥1.5 mm2

Section surface of voltage wire copper core≥1.0 mm2
Power supplyAC220V±10%, 50Hz
Service commitment