Electrical Circuit Breakers -- Maintenance Training

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Course Duration: 3 Days

Course Description:
This three-day electrical circuit breakers -- maintenance training course will discuss application, installation, maintenance and testing issues related to low-, medium- and high-voltage switchgear and electrical circuit breakers. The course will provide the delegates with a solid understanding of switchgear theory and standards. The course will also make delegates aware of issues concerning the proper application, installation and maintenance of these types of 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.

This course provides an overview of power system design and theory, focusing on the power distribution electrical circuit breakers used in common utility, 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.

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.

Who Should Attend:
This course is recommended for skilled trades, supervisors, and anyone involved in the maintenance of industrial power circuit breakers.

Course Objectives:

This course is designed to enable participants to:

List the voltage convention classifications used in this course.
Describe switchgear construction.
Describe a ground fault relay system.
Describe the three basic types of low and medium voltage circuit breaker contacts.
Describe the molded case circuit breaker

Course Outline:

DAY 1

Low Voltage Switchgear, Theory and Applications

Establishing a solid understanding of electrical switchgear design and operation is vital to its safe and reliable application. This course provides valuable technical information on low voltage circuit breakers and switchgear used in common industrial, commercial and utility applications.

General Introduction
The Spectrum of Switchgear
Standards -- Standards Organizations, Certification Marks and Applicable Standards
Switchgear Drawings
Switchgear Ratings
Difference Between Switchgear & Switchboards
Switchgear Factory Testing
Short Circuit Current Estimation
Ground Fault Protection
Modern LV Switchgear -- Design Features and Benefits
Modern LV Power Circuit Breakers
Modern LV Trip Units
Wrap-up, Final Questions

DAY 2

I. 4160 Volt Breaker Overview

Purpose/application
Circuit breaker construction
Circuit breaker operation
Circuit breaker control
Personnel and equipment safety factors

II. 4160 Volt Breaker Maintenance

General breaker maintenance
Adjustment
Inspection and testing
Maintenance intervals
Troubleshooting and repair

III. Low-Voltage Breaker Overview

Purpose and application
Circuit breaker construction
Circuit breaker operation
Circuit breaker control
Personnel and equipment safety

IV. Low-Voltage Breaker Maintenance

Inspection and testing
Adjustments
Troubleshooting and repair

DAY 3

V. Switchgear Overview

System overview and interactions
Switchgear components
Power buses
Safety

VI. Grounding

Principles of grounding
Grounding procedures
Ground and test device

VII. Switchgear Maintenance

Operation of switchgear devices
Preventive maintenance
Testing
Corrective maintenance

About The Electricity Forum

The Electricity Forum has established its role as one of the nation's leading conference organizers on subjects of policy and technical common interest to electric power generators and large power consuming companies. With headquarters in Pickering, Ontario, The Electricity Forum is dedicated to providing cost-effective, highly specialized information in the format of forums, electrical training tutorials, and industry-wide events. Since 1986, more than 25,000 delegates from leading companies have attended our forums and seminars, including: