Mv Circuit Breakers: Design, Application and Maintenance
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Mv Circuit Breakers: Design, Application and Maintenance Course
Introduction:
During the training program, attendees will acquire knowledge and skills in performing maintenance and testing procedures on various 480V circuit breakers. The covered circuit breaker brands include Siemens, ABB, Westinghouse, GE, Square D, Federal Pioneer, and ITE. The training will focus on ensuring safety and employing correct techniques.
The topics covered for low-voltage circuit breakers will encompass maintenance and adjustment requirements, as well as conducting tests such as insulation resistance, contact resistance, and high current primary injection tests. Participants will learn the proper procedures for carrying out these tests, enabling them to effectively assess the condition and performance of the circuit breakers.
By the end of the training, attendees will have a comprehensive understanding of the maintenance and testing requirements for various 480V circuit breakers, and they will be equipped with the necessary skills to perform these procedures accurately and safely.
Course Objectives:
· Use manufacturer instruction literature and established industrial standards to perform required inspection, checks, lubrication, and adjustments on both low and medium voltage circuit breakers.
· How to perform insulation resistance test on both low and medium voltage circuit breakers and interpret test data.
· How to perform contact resistance test on both low and medium voltage circuit breakers and interpret test data.
· How to perform a high current primary injection test on low voltage circuit breakers and interpret test data.
· How to perform high potential test on medium voltage circuit breakers and interpret test data.
· How to perform a power factor / dissipation factor test on medium voltage air & vacuum circuit breakers and interpret test data
Who Should Attend?
- Electric maintenance & design Engineers.
- Project Engineers.
- Electrical supervisors.
- Senior technicians & formans.
- Technical support Engineers
Course Outlines:
- Circuit interrupters up to 34.5 kV.
- Switching problems.
- Fault analysis (simple methods, Symmetrical components & PU systems).
- Breaking and making capacities.
- Theory of circuit interruption with different switching mediums.
- Circuit breaking under unfavorable operating conditions.
- Circuit interruption in different mediums (OCB, VCB, Sf6 CB & ACB)
- Ratings & de-ratings of Circuit breakers.
- Anti-pumping & trip supervision relays.
- Safety features of MV switchboards.
- Comparison of interrupting devices.
- Operating mechanisms.
- Protective relay fundamentals.
- Arc flashing & Electric hazards.
- Authorizations for operation MV switchgear.
- Tests & commissioning of MV switchgear.
- Trouble shooting of different circuit breaker failures.
- Preventive maintenance of MV CBs.
- Maintenance work instructions.
- Related IEC/ANSI standards.