Abstract
A fault diagnosis expert system for high voltage circuit breaker is designed based on coil currents and contact states. The operating process of breakers is analyzed, and the available information is extracted from coil currents and contact states according to operating features. The fault diagnosis expert system for breakers is then designed based on relationships between eigenparameters and breaker conditions. The reasoning process of the expert system is introduced with two fault examples: poor lubrication and trip coil fault. It is validated that the expert system can detect different kinds of breaker faults accurately and provide reasonable maintenance suggestions.
| Original language | English |
|---|---|
| Pages (from-to) | 5-7+11 |
| Journal | Dianli Zidonghua Shebei/Electric Power Automation Equipment |
| Volume | 26 |
| Issue number | 8 |
| State | Published - Aug 2006 |
| Externally published | Yes |
Keywords
- Circuit breaker
- Coil current
- Expert system
- Fault
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