100A Electrical Contact Resistance Measuring Device for Circuit Breakers
Product Description
SXHL-100A Resistance Tester
The SXHL-100A measures the resistance of electrical contact points by applying a controlled test current and detecting the corresponding voltage response. This makes it suitable for evaluating circuit breaker contacts, busbar joints, and other conductive connections in power equipment.
The four terminal measurement technique provides a dedicated path for voltage sensing, helping improve the accuracy of resistance measurement. The instrument also incorporates stable constant current output and an LCD touch screen, combining reliable electrical testing with simplified operation.
Product Parameters
| Parameter | Specification |
|---|---|
| Product Name | Electrical Contact Resistance Tester |
| Model | SXHL-100A |
| Maximum Current | 100 A |
| Measurement Principle | Four Terminal Measurement |
| Current Output | Constant Current |
| Display Type | LCD Touch Screen |
| Test Targets | Contact and Connection Points |
| Typical Equipment | Circuit Breakers and Busbars |
Product Advantages
- The measurement circuit is designed to accurately evaluate resistance at electrical contact points.
- Four terminal technology provides a dedicated voltage measurement path for improved accuracy.
- Constant current output helps maintain stable conditions while the resistance value is being measured.
- The LCD touch screen combines measurement control and data viewing in one operating interface.
Application Scenarios
- Circuit Breaker Contact Measurement
- Busbar Connection Testing
- Switchgear Electrical Testing
- Substation Equipment Maintenance
- Power Distribution System Inspection
FAQ
Q1: How does the tester measure contact resistance?
A: It applies a controlled current through the connection and measures the voltage response to determine resistance.
Q2: What does the 100A rating refer to?
A: It refers to the maximum test current provided by the instrument.
Q3: Why are separate current and voltage paths used?
A: The four terminal configuration helps reduce the influence of lead resistance on the measured value.
Q4: Can it test busbar connections?
A: Yes. Busbar joints and other conductive connection points are suitable applications.
Q5: What information can operators view on the display?
A: The LCD touch screen is used for test operation and viewing measurement results.
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