| After-sales Service: | Lifetime Technical Support |
|---|---|
| Warranty: | 1 Year for Circuit Breaker Contact Resistancetest |
| Product Name: | IEC Standard Automatic Circuit Breaker Contact Re |
| Test Standard: | IEC62271 |
| Application: | Measure Contact Resistance of Circuit Breaker |
| Measuring Range: | 0-1999.9 μΩ Resolution:0.1 μΩ |
| Customization: |
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Why do we need to test contact resistance?
Regularly inspecting the contacts in the circuit breaker is crucial to ensure its proper functioning and overall health. Neglected or damaged contacts can result in arcing, phase loss, and potential fire hazards. This examination becomes even more vital for high-current carrying contacts, such as switchgear busbars, as higher contact resistance can diminish their capacity to carry current and increase energy losses. To perform this assessment, a micro/milli-ohmmeter or low ohmmeter is commonly used for ductor testing. Assessing contact resistance aids in detecting fretting corrosion and enables the diagnosis and prevention of contact corrosion. An escalation in contact resistance can lead to significant voltage drops within the system, necessitating proper control measures.
Index of circuit breaker contact resistance tester megger ohm meter
| 1 | Measuring range | 0-1999.9 μΩ Resolution:0.1 μΩ |
| 2 | Measuring current | DC 100A/200A for different selection |
| 3 | Measuring precision | 0.5 %RGD+0.05%FS |
| 4 | Display mode | LCD |
| 5 | Data storage | Save no more than 100 groups of data |
| 6 | Data connection | RS232 computer interface |
| 7 | Rated power supply | AC220V |
| 8 | Size | 340mm× 280mm × 210mm |
| 9 | Environment temperature | -10 ºC~+40 ºC |
| 10 | Relative humidity | <80% |
GDHL circuit breaker contact resistance megger insulation resistance tester more details
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