Advanced Operation and Maintenance of Circuit Breakers and Switchgear Course

Course Overview:

This course aims at providing its participants a more thorough insight with respect to fault classification, principles of arcs extinction, and the importance of circuit breakers in protecting a certain power system. 

Additionally, as part of their training, participants will also be instructed about the requirements mandated by ANSI, IEEE, and IEC while also being taught the intricacies of routine inspection, the use of micro processors, and most importantly, the operation, maintenance, and safety measures needed for different kinds of circuit breakers like gas breakers and vacuum ones. 

The course aims to provide electrical staff members not only the theoretical but hands on training as well which would then empower them with the knowledge to augment the reliability and the safety of a system.

Course Objectives:

By the end of the training, participants will be able to:

• Learn the importance of preventive maintenance check and servicing of the various types of circuit breakers
• Gain detailed information on the implementation of safe systems of work and operations
• Co-ordination of maintenance activities and maintaining system safety
• Understand the component functionalities of the gas and vacuum circuit breakers
• Familiarize with the methods of arc extinction for MV HV circuit breakers
• Familiarize with the routine inspections and the functions of the microprocessor component in the circuit breakers

Who Should Attend?

This course is intended for all Electrical Staffs.

Course Outlines:

Introduction - Reasons for Faults - and Classification of Faults

• The distinction between load and fault current
• Sources of short-circuit current
• Introduction to fault calculations
• Balanced and unbalanced faults

Overview of Power System Protection

• Measurement - voltage and current transformers
• Protective device characteristics
• Types of protection systems
• The role and importance of the circuit breaker in power systems

General Principles of Arc Extinction

• Overview of types of circuit breaker
• Air-Break
• Vacuum
• Gas
• Other related switching devices
• The single-line diagram
• Substation layouts

Air-Break

• Principles of arc extinction
• D.C. circuit breaking
• A.C. circuit breaking
• Contacts and arc initiation
• Arc chutes
• Performance characteristics
• General construction Principles

Vacuum

• History – The early years
• The vacuum arc – An overview
• Current interruption in vacuum
• Methods of keeping the arc diffuse
• Current chopping – general implications
• Vacuum interrupters in series
• Design of vacuum switchgear
• Maintenance and testing requirements

SF6 Gas

• Properties of SF6
• Principles of arc extinction
• Features of construction
• Mechanism principles
• Insulation principles
• Gas leak problems
• Specific supervision requirements
• Circuit power factor considerations
• Maintenance and testing requirements

International Standards

• Importance and relevance to specifications
• ANSI and IEEE
• IIEC and IEE

Circuit Breakers and Power System

• Circuit breaker failure and the effects on power system operation
• Circuit breaker inspection, testing, and maintenance program
• The Principles of modern substation control systems
• Power circuit breaker maintenance

see more: Advanced Operation of Digital (SMART) Transmitters and Valve Controllers Course