Circuit breakers are power system elements that have the pivotal role of protection in the power system.  

Power Circuit Breaker Working group put their knowledge and experience in the fields of circuit breaker testing and monitoring, maintenance, diagnostics, design. This Working Group members share test and research results, new technologies, expertise, also offer technical guidance and support. 

Some of the interests of this group are:  

• Static and Dynamic Resistance tests 
• Insulation Testing and Monitoring 
• Transient Processes Monitoring 
• Timing Analysis 
• Leakage Current Monitoring