Electrical Control & Protection Part 3

This course introduces electrical control & protection systems which are a critical part of any electrical network

Electrical control & protection systems are a critical part of the distribution & transmission systems that feed power to our cities & industries.

What you’ll learn

  • Learn about protection fault clearance times.
  • Know why we have protection zones.
  • Understand how differential protection works.
  • Understand how frame leakage protection operates.
  • Be able to identify the time 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 time / 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.

Course Content

  • Electrical control & protection part 3 –> 11 lectures • 2hr 25min.

Electrical Control & Protection Part 3

Requirements

  • The basic electrical principles.
  • A basic understanding of electrical engineering.
  • Have a calculator.

Electrical control & protection systems are a critical part of the distribution & transmission systems that feed power to our cities & industries.

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 time current grading
  • Look at the time 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 time 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.

Get Tutorial