What does a monthly inspection of an EHV breaker typically include?

A monthly inspection of an Extra High Voltage (EHV) breaker is crucial for ensuring the reliability and safety of the electrical system. This inspection typically includes checking oil levels and pressure gauges. In breakers that utilize oil for insulation and cooling, monitoring the oil levels is essential to prevent overheating and to maintain effective insulation properties. Additionally, pressure gauges provide important information about the internal operating conditions of the breaker, helping to identify potential issues before they escalate.

This proactive approach towards maintenance helps ensure that the breaker functions correctly and safely. Inspecting oil levels can also alert the technician to leaks or other issues that might affect the breaker's performance. Overall, these checks are fundamental to the routine maintenance program, contributing to the long-term reliability of the electrical infrastructure.