This circuit breaker maintenance training course provides an overview of power system protection design fundamentals, focusing on medium and high voltage power distribution electrical circuit breakers used in common industrial, commerical and institutional applications. Basic electrical circuit breaker construction, electrical safety, and common circuit breaker maintenance techniques are the major components of this course.
The testing and maintenance training part of the course will discuss application, installation, maintenance and testing issues related to low, medium and high-voltage switchgear and electrical circuit breaker equipment. The course will provide delegates with a solid understanding of Circuit Breaker testing and maintenance standards. The course will also make delegates aware of issues concerning the proper application, installation and maintenance of circuit breaker equipment with a strong emphasis on safety. The course will cover a wide range of material starting from the basics and moving on to more complex issues.
When brought on-site, this course can be supplemented by an in-depth study of the specific circuit breaker models used at the client's facility. Hands-on training is provided wherever practical.
Students will learn safe and proper maintenance, testing and safety procedures for servicing a variety of Low Voltage (750V and less) circuit breakers. Topics for Low Voltage circuit breakers will include maintenance and adjustment requirements, as well as insulation resistance, contact resistance and high current primary injection tests.
Students will learn safe and proper maintenance, testing and safety procedures for servicing Medium Voltage (750V – 7.5kV) circuit breakers.
Technically we can include breakers in the MV range of 750-69kV. Most MV services are 12-25kV but Utilities will use up to 38k-69kV that at least we categorized as MV. HV starts at transmission voltages above 69kV and usually was of SF6 GIS equipment breakers include maintenance and adjustment requirements, as well as insulation resistance, contact resistance, high potential and power factor testing. We can provide full reference to a NETA standards and documents here as these are very detailed and inclusive, and publically available
Learning Objectives:
- Use manufacturer instruction literature and established industrial standards to perform required inspection, checks, lubrication and adjustments on Low and Medium voltage circuit breakers.
- How to perform insulation resistance tests on Low and Medium voltage breakers and the interpretation of test data.
- How to perform contact resistance tests on Low and Medium voltage breakers and the interpretation of test data.
- How to perform a high current primary injection test on Low Voltage circuit breakers and the interpretation of test data.
- How to perform a power factor/dissipation test on Medium Voltage breakers and the interpretation of test data.
