Course details

Overview ?

Why Choose this Course?

This course will provide delegates a solid understanding on the safe use of circuit breakers, switchgears and associated equipment that requires correct initial selection, operation and maintenance. Strong emphasis on detailed understanding of how these devices should be installed, the local substation and system ratings, and how the various breakers operate; in order to enable accurate troubleshooting and subsequent repair.

On completion, delegates will be equipped or will have enhanced skills to ensure that circuit breakers and switchgear are installed, operated safely and maintained in a fashion that ensures safe and stable operation. Delegates will be exposed to recognize faults and ensure the underlying causes are identified to reduce possible further failures.

This course will feature:

Understanding the types and functions of circuit breakers
Operation principle of medium voltage circuit breakers
Identification of testing equipment and instruments
Interpretation of single line drawings
Troubleshooting and maintenance of switchgears

What are the Goals?

By the end of this course, participants will be able to:

Understand the various types and operations of circuit breakers
Determine the components and operations switchgears
Explain the different types of testing instruments
Analyse the common faults in an electrical installation
Inculcate greater confidence, working safely on circuit breakers and switchgears

Who is this Course for?

This course will benefit all levels of professional in an electrical installation. It will enable them to understand the importance of safe operations of circuit breakers and switchgears

This course is suitable to a wide range of technical professionals but will greatly benefit:

Electricians
Electrical supervisors
Plant electricians
Operations & maintenance engineers, supervisors & technicians
Maintenance technicians

How will this be Presented?

This course will utilise a variety of proven adult training techniques to ensure maximum understanding, comprehension and retention of the information presented. This includes presentation and discussion of latest videos and circuit breaker technologies.

Questions are encouraged throughout, particularly at the daily wrap up sessions. This provides opportunities for participants to discuss with the Presenter specific issues and, if possible, find appropriate solutions. Specific goals of each participant will be discussed to ensure that their needs are fulfilled whenever practicable.

The Course Content

Day One

The Technology of Circuit Breakers and Switchgear

Typical substation arrangements and motor control centres
Motor and generator fault contributions
Low, medium and high voltage equipment in an electrical installation
Name plate ratings – interpretation
CT’s and VT’s operation, construction and classifications
Basic protection requirements

Day Two

Operation of various types of interrupting equipment

High voltage fuses and fused switches
Moulded case circuit breakers
Air and load break switches operation and construction
Vacuum contactors applications
Vacuum circuit breakers operations and characteristics
SF6 circuit breakers types and operation principles

Day Three

The use of test equipment for operations and maintenance

Digital voltmeter (DVM), oscilloscope, insulation tester applications
Temperature probes/ IR pyrometers
Cable fault locators and techniques
NEC check lists to ensure the correct installation
Troubleshooting methodology for electrical equipment
Group exercises and case studies

Day Four

The interpretation and use of drawings and job plan

Single-line electrical drawings control schematics
Switchgear name plate information
Logic and standard symbols
Procedure preparation for fault finding
Documentation and follow up safety procedures for switchgears
Safety considerations and training

Day Five

The identification and repair of problems/failures

Common mode failures in switchgears
Phase imbalance and phase sequence effects
Ground faults – cable and busbar faults
A review of Safety Requirements
Hazardous area classifications
NEC electrical codes applications

Day 1

Day 2

Day 3

Day 4

Day 5

Training Methodology

Safe Operation & Maintenance of Circuit Breakers and Switchgears

Course details

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