Advanced Circuit Breakers Operation and Maintenance

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Training Advanced Circuit Breakers Operation and Maintenance

Introduction

Circuit breakers play an important role in the safe distribution of electrical power. The equipment needs to be operated, maintained and installed in a safe manner securing continuity of supply to consumers.
This following are important aspects of the circuit breakers:

Electric power systems are designed to be as fault free as possible through appropriate network design, equipment design, proper installation and on-going maintenance.
The Circuit breaker and its associated fault detection equipment, protective relaying, is an extremely important device, through its role of clearing short-circuit currents, disconnecting faulty elements from the power network, and thus maintaining the overall integrity of the power network
If faults are not controlled they can cause unnecessary loss of electricity service with all of its many ramifications.
The circuit breaker selection and arc extinction methods are of great importance
Minimising downtime by proper and systematic maintenance program

The seminar focuses mainly on the operation and maintenance of circuit breakers, with reference to auxiliary equipments incorporated for its reliable and safe operation.

Seminar Objectives

Delegates will gain a detailed appreciation of the following:

The importance of preventive maintenance check and servicing of the various types of circuit breakers
Implementation of safe systems of work and operations
Co-ordination of maintenance activities and maintaining system safety
To be able to understand the component functionalities of the gas and vacuum circuit breakers
Methods of arc extinction for MV HV circuit breakers
Routine inspections and the functions of the micro processor component in the circuit breakers

Training Methodology

Participants will be able to share knowledge and first hand experiences related to circuit breaker operations and maintenance. Active participation between trainer and delegates and also among delegates will be carried out by discussing case studies and video clips. Open discussions among delegates will result in formulating solutions to maintenance issues of circuit breakers

Organisational Impact

The seminar will allow delegates to interact and gain shared experiences of others along with:

An understanding for the need for routine inspection and maintenance
Using selected videos and case studies to illustrate the material being discussed
An emphasis to ensure material is appropriate to the organisations being represented with regards to the types of circuit breakers and switchgears are installed in their premises
An awareness and understanding of the course objectives
Safe working practices being stressed and risk management analysis are applied when the need arises

Personal Impact

On successful completion of this seminar delegate will be able to understand:

The construction, the arc extinguishing principles of different types of circuit breakers currently in use and the relevance to operations and maintenance
The micro processor operation and impact on the fault clearing and tripping process
Expand their knowledge on circuit breaker standards and the relevance to specifications and procurement
Circuit breakers and switchgear maintenance requirements and techniques.
The use of partial discharge and thermography techniques when dealing with condition monitoring

Who Should Attend?

Electrical Professionals
HSE personnel
Technicians and Supervisors
Professionals responsible for the operation and maintenance of distribution equipment, who will benefit from sharing experiences in the planning, organisation, and implementation of maintenance activities.

Programme Outline

Introduction – reasons for faults – and classification of faults

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