Product Introduction
This UHV-801 Ground Network Earth Resistance Tester utilizes frequency-conversion technology and microprocessor control to accurately measure grounding resistance (4Ω-10Ω), contact/step voltage, and soil resistivity. Featuring 50Hz anti-interference capability and 3A test current, it enables reliable live-grid testing without power outages. The compact design significantly improves efficiency, reducing testing time and labor intensity compared to traditional 30A methods. Suitable for substations, power plants, and lightning protection systems.
Key Features of Ground Grid Resistance Tester:
1、Precision Power Frequency Simulation- Delivers accurate sinusoidal waveforms with ±5Hz frequency variation (45Hz/55Hz), ensuring power frequency equivalence in measurements.
2、Advanced Anti-Interference Technology- Combines variable frequency measurement with digital filtering for stable, reliable data even in high-noise environments.
3、Exceptional Accuracy- Achieves 0.005Ω basic error resolution, capable of testing low-impedance grounding systems with precision.
4、Comprehensive Measurement Capabilities- Tests current/voltage poles, grounding resistance, step voltage, and contact voltage in one integrated solution.
5、User-Friendly Interface- Features intuitive Chinese menu navigation with direct measurement readouts for simplified operation.
6、Efficient Field Operation- Eliminates heavy cabling requirements with compact design that doesn't require high-current lines.
Technical Advantages:
• True power frequency simulation
• Superior noise rejection
• Micro-ohm resolution
• Multi-parameter testing
• Simplified workflow
• Lightweight field deployment
Technical parameter
measurement range:0～200Ω(including the current pile impedance)
resolution: 0.001Ω
measurement error: ±(readings×1%+0.005Ω)
maximum output voltage: AC 400V (45Hz, 55Hz, dual-frequency, sine wave)
maximum output current:AC 5A(45Hz, 55Hz, dual-frequency, sine wave)
Output gear: 5 / 4.5/4/3.5/3/2.5/2/1.5/1a, every 0.5A, 9 gears in total
anti-interference ability: anti-power frequency 50Hz voltage 10V
measurement line requirements: Section area of copper core of current wire ≥ 1.5mm2
Sectional area of copper core of voltage line ≥ 1.0mm2
power supply:AC220V±10%，50Hz
External dimension:295×340×310mm3
instrument weight:30kg
