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| Place of Origin: | China |
| Brand Name: | Sansion |
| Certification: | CE/CNAS/ISO9001 |
| Model Number: | SXHL |
The 200A Circuit Breaker Contact Resistance Tester is designed specifically for measuring the static contact resistance of high- and medium-voltage switching equipment.
The instrument injects a controlled DC current into the test circuit and measures the corresponding voltage drop to calculate contact resistance in the micro-ohm range.
It is particularly suitable for circuit breaker commissioning, preventive maintenance, factory testing and substation inspection.
Modern contact resistance testers commonly offer selectable current levels and micro-ohm resolution, with 200A being a widely used configuration.
Q: What current should I choose, 100A or 200A?
A: The appropriate test current depends on the applicable test standard, equipment requirements and customer's testing procedure. 100A and 200A are common configurations.
Q: What resistance range can be measured?
A: It depends on the selected current and model. Typical systems cover micro-ohm to milliohm ranges. For example, some 200A models specify ranges around 0–20 mΩ with 0.1 μΩ resolution.
Q: Can it be used on site?
A: Yes. Portable contact resistance testers are commonly designed for field maintenance and commissioning.
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