EE1133 : Vacuum Circuit Breaker (VCB) Testing, Maintenance & Troubleshooting

 This practical and highly-interactive course includes various practical sessions and exercises. Theory learnt will be applied using our state-of-the-art simulators. 

 

This course is designed to provide participants with a detailed and up-to-date overview of Vacuum Circuit Breaker (VCB) Testing, Maintenance & Troubleshooting. It covers the vacuum circuit breakers, including its advantages and limitations and common applications in power systems; the construction components, operational principles, types and classifications of VCBs; the installation and commissioning, safety standards and best practices; the testing standards, insulation resistance testing, contact resistance measurement, vacuum integrity testing and timing and travel analysis; the control wiring, testing trip and close coils and functionality of interlocks and indicators; the routine maintenance procedures and preventive maintenance techniques; and the mechanical component maintenance, electrical component maintenance and vacuum interrupter maintenance. 

 

Further, the course will also discuss the impact of temperature and humidity, protection against dust and moisture, sealing and insulation integrity and mitigation of environmental risks; the common VCB faults and diagnostic techniques; the troubleshooting procedures and coordination with protection systems; recording fault incidents, maintaining  troubleshooting logs and preparing incident reports; and recommendations for system improvements. 

 

 

 

During this interactive course, participants will learn the safety protocols, PPE usage and hazard identification, emergency procedures and preparation of tools and equipment; operating insulation resistance testers, using micro-ohmmeters for contact resistance and timing test equipment setup and interpretation of test results; disassembling and inspecting VCB components and cleaning and lubrication procedures; and the adjustment of mechanical linkages and reassembly and functional testing.