Product Introduction
The UHV-H200A Contact Resistance Tester by Wuhan UHV Power Technology Co., Ltd. is designed to measure contact resistance in high-voltage circuit breakers and switchgear. Traditional methods using the QJ44 DC double arm bridge are insufficient due to low current, which fails to detect decreases in conductor cross-sectional area. The UHV-H200A addresses this by using a test current of 100A and 200A, as recommended by national standards, ensuring accurate resistance measurement.

Product Features
1. High Current: Utilizes advanced power supply technology to provide continuous high current, overcoming the limitations of pulsed power and effectively penetrating oxide layers for precise results.
2. Anti-Interference: Displays stable test data on an LCD screen with minimal error, even in high-interference environments.
3. Durability: Incorporates precise resistances to minimize temperature impact and uses military-grade connectors for enhanced vibration resistance.
4. Portability: Compact and lightweight design.

Technical Parameters

• Measurement Range: 0–1999 μΩ
• Resolution: 1 μΩ
• Measured Current: DC 50A, 100A, 150A, 200A fixed output
• Accuracy: 0.5%±1d
• Working Mode: Continuous
• Display: 3-1/2 LCD
• Power Supply: AC220V±10% 50Hz
• Service Conditions: Temperature -10℃ to 40℃, Humidity ≤80%RH
• Dimensions: 440×410×190 mm
• Weight: 8.7 kg (excluding accessories)