Basics of Electrical Protection System
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Basics of Electrical Protection System
This course is part of Power System: Generation, Transmission and Protection Specialization
Instructor: Subject Matter Expert
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5 assignments
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There are 5 modules in this course
Power system protection and switchgear plays a crucial role in establishing reliable electrical power systems. Improperly designed protection systems can lead to major power failures. Due to the increasing dependency of electricity, such power failures can have a serious impact on society and the economy. Application knowledge of power system-protection is key when it comes to optimizing the reliability level of electrical infrastructure. With the advances in protection and communication technology in recent decades plus the strong increase of renewable energy sources, the design and operation of power system protection systems has become ever more challenging. The course provides an up-to-date presentation of the role of protective relays in protecting the power system equipment. It provides a theoretical summary along with examples of real-life engineering applications to a variety of technical problems, thereby bridging the gap between the theoretical advances, experimental validations, and practical engineering.
This course gives the learners insights about: 1. Electrical Protection Schemes 2. Numerical Relay and Algorithm 3. Optical Instrument Transformers
This module offers overview of the protection schemes and evolution of Protective relays.
What's included
18 videos1 assignment
18 videos•Total 134 minutes
- About the Institution•1 minute
- About the Specialization•6 minutes
- About the course•7 minutes
- Overview of Power System •10 minutes
- Need for Power System Protection•10 minutes
- Types of Electrical Faults •8 minutes
- Electrical Fault Analysis•9 minutes
- Protective Relay•3 minutes
- Evolution of Protective Relays•13 minutes
- Types of Protection•4 minutes
- Equipment Protection•6 minutes
- System Protection•10 minutes
- Zones of Protection, Primary and Back-Up Protection•9 minutes
- Desirable Features of Protective Relaying Systems•4 minutes
- Components of Protection System & Classification of Protective Schemes•8 minutes
- Protective Device Numbering and Relay Terminology•7 minutes
- A Walk Through video of Substation-Part 1•10 minutes
- A Walk Through video of Substation-Part 2•10 minutes
1 assignment•Total 30 minutes
- Assessment on Introduction to Protective Relays•30 minutes
This module gives brief about Current Transformer and Voltage Transformer i.e. Instrument Transformers along with its in depth working principle.
What's included
19 videos1 assignment
19 videos•Total 141 minutes
- Basics of Current Transformers (CT)•7 minutes
- Equivalent Circuit and Modelling of Current Transformers•14 minutes
- Current Transformer Saturation and DC Offset Current , Knee Point•7 minutes
- ANSI/IEEE Classification of Current Transformer •10 minutes
- Optical Current Transformer •7 minutes
- Current Transformer Connection &Testing •9 minutes
- Principles of Electromagnetic Voltage Transformers •9 minutes
- Principle of Operation of Capacitive Voltage Transformer•6 minutes
- ANSI/IEEE Classification of Voltage Transformer•6 minutes
- Three-Phase Connections of Voltage Transformers•4 minutes
- Optical Voltage Transformer •7 minutes
- Voltage Transformer Testing•4 minutes
- Demonstration of CT Insulation Resistance Testing - Part 1•14 minutes
- Demonstration of CT Insulation Resistance Testing - Part 2•4 minutes
- Demonstration of CT Ratio Testing•5 minutes
- Demonstration of Excitation Test for a CT•7 minutes
- Demonstration of Potential Transformer (PT) Insulation Resistance Testing•12 minutes
- Demonstration of PT D67 Winding Resistance Testing•2 minutes
- Demonstration of PT Ratio Testing•5 minutes
1 assignment•Total 30 minutes
- Assessment on Instrumentation Transformers•30 minutes
This module deals with Overcurrent Protection, its working principles and application, and relay setting principles.
What's included
15 videos1 assignment
15 videos•Total 131 minutes
- Introduction to Overcurrent Protection•8 minutes
- Fuses and Miniature Circuit Breaker for protection •10 minutes
- Fundamental Principles of Overcurrent Relays•10 minutes
- Relays used in Overcurrent Protection •9 minutes
- Overcurrent Relay settings Principles Part 1•8 minutes
- Overcurrent Relay settings Principles Part 2•8 minutes
- Principles of Time/Current Grading•8 minutes
- Example of Overcurrent Relay Co-Ordination•11 minutes
- Directional Overcurrent Protection •7 minutes
- Earth Fault Protection•5 minutes
- Over Current Protection - Earth Fault Relay Connections and Settings•4 minutes
- Demonstration set up of Overcurrent Protection Relay•14 minutes
- Demonstration of Universal 3-Phase Secondary Injection Test Kit•4 minutes
- Demonstration of Overcurrent Protection - Part 1•14 minutes
- Demonstration of Overcurrent Protection - Part 2•11 minutes
1 assignment•Total 30 minutes
- Assessment on Overcurrent Protection Relays•30 minutes
This module deals with Differential Protection and System grounding protective relaying, its working principles and application, and relay setting principles.
What's included
14 videos1 assignment
14 videos•Total 95 minutes
- Introduction to Differential relays•4 minutes
- Current based Differential Relay •4 minutes
- Merz Price Differential Relay•3 minutes
- Voltage based Differential Relay •6 minutes
- Applications of Differential Relay•4 minutes
- ANSI/IEEE Device Numbers and Electric Diagrams of Differential Relays•7 minutes
- Pilot Wire Differential Relays Device 87L•7 minutes
- Ungrounded Systems •11 minutes
- Resistance Grounding•4 minutes
- Reactance Grounding•3 minutes
- Sensitive Ground Relaying•4 minutes
- Ground Fault Protection •3 minutes
- Demonstration of Differential Protection -Part1 •11 minutes
- Demonstration of Differential Protection -Part2•25 minutes
1 assignment•Total 30 minutes
- Assessment on Differential relays and system grounding protective relaying•30 minutes
This module deals with Motor Protection, its working principles and application, and relay setting principles.
What's included
14 videos1 assignment
14 videos•Total 96 minutes
- Introduction to AC Motors •5 minutes
- Motor Protection Requirements•5 minutes
- Start / Stall Protection of AC Motors•12 minutes
- Short Circuit & Thermal Overload Protection of AC Motors•6 minutes
- Earth Fault Protection of AC Motors•8 minutes
- Negative Phase Sequence Protection of AC Motors•4 minutes
- Single Phasing of AC Motors•6 minutes
- Phase Reversal Protection of AC Motors•6 minutes
- Under Voltage Protection of AC Motors•6 minutes
- Comprehensive Motor Protection•8 minutes
- Out of Step Protection of Synchronous Motors•6 minutes
- Loss of Excitation Protection of Synchronous Motors•3 minutes
- Demonstration of DOL Starters for Induction Motor-Part 1•12 minutes
- Demonstration of DOL Starters for Induction Motor-Part 2•10 minutes
1 assignment•Total 30 minutes
- Assessment on Motor protection•30 minutes
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Reviewed on Apr 1, 2025
Excelente para lo básico y entender la protección de equipos, buen inicio en esta área de conocimiento.
Reviewed on Sep 5, 2023
the knowledge i got from this was great. This course helped me to gain some important points and the to get perfect identity about basic electrical protection systems
Reviewed on Nov 29, 2024
It's a great course. There are just some minor errors in some lesson's content. In some lessons the professor is saying something but the content shown doesn't match.
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