Risk Assessment for Power Circuit Breaker by Using Failure Modes, Effects and Criticality Analysis

This paper explains risk assessment for circuit breaker utilization by using failure modes, effects, and criticality analysis (FMECA). The circuit breaker components are divided into three main parts such as live part, operating mechanism and insulation, and control device. FMECA is analyzed to 4 groups such as finance, safety, environment and efficiency. Finally, criticality is categorized into 4 levels such as low level, medium level, high level and highest risk level. Data collection and analysis were performed. The results of the criticality analysis will assist in making maintenance resource management decisions in order to avoid damage to the system with efficient usage of available or limited resources.