What you'll learn

Learn about protection fault clearance s

Know why we have protection zones

Understand how differential protection works

Understand how frame leakage protection operates

Be able to identify the current characteristics for fuses

Know the principles behind protection grading

Understand how bay controllers operate

Know the difference between the three MCB types

Learn about fuse / current characteristics

Know how high impedance busbar protection operates

Be able to identify all of the key components of metalclad switchgear

Learn about the protection and control elements of ring main units

Understand how damage curves for conductors & busbars are used

Learn how to size incomer and bus section circuit breakers

Learn how to use the transformer impedance to calculate the fault current

Requirements

The basic electrical principles

A basic understanding of electrical eeering

Have a calculator

Description

The third part of this protection course focuses on protection systems for low voltage & distribution networks and busbar protection

The course will go into detail for the following key topics :-

Introduce the general principles behind differential protection.

Show how we use current transformers to form protection zones for various common substation configurations

Show how to use logarithmic graphs for current grading

Look at the current characteristics for fuses, MCB's & circuit breakers

Show how we use damage curves for busbars & cables

Introduce the principles of protection grading and show how we use current characteristics to discrimate for overloads and fault situations

Look in detail at RMU protection

Introduce the design features of Metalclad switchgear & their protection equipments

Show how we size busbars

Provide a simple methodology for calculating the fault current for transformers

Show how we provide simple busbar protection systems for distribution networks

Look in detail at high impedance differential busbar protection

By the end of the course the student will be able to identify all of the key components of a protection & control system and understand how all of these components fit together to create a fully integrated system.

Who this course is for:

Electrical Eeering Undergraduates

Electricians

Electrical Eeering Graduates

Electrical Utility Eeers

Anyone interested in electrical eeering



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