Basics of Electrical Protection System 

About the Institution

About the Specialization

About the course

Overview of Power System

Need for Power System Protection

Types of Electrical Faults

Electrical Fault Analysis

Protective Relay

Evolution of Protective Relays

Types of Protection

Equipment Protection

System Protection

Zones of Protection, Primary and Back-Up Protection

Desirable Features of Protective Relaying Systems

Components of Protection System & Classification of Protective Schemes

Protective Device Numbering and Relay Terminology

A Walk Through video of Substation-Part 1

A Walk Through video of Substation-Part 2

Assessment on Introduction to Protective Relays

Basics of Current Transformers (CT)

Equivalent Circuit and Modelling of Current Transformers

Current Transformer Saturation and DC Offset Current , Knee Point

ANSI/IEEE Classification of Current Transformer

Optical Current Transformer

Current Transformer Connection &Testing

Principles of Electromagnetic Voltage Transformers

Principle of Operation of Capacitive Voltage Transformer

ANSI/IEEE Classification of Voltage Transformer

Three-Phase Connections of Voltage Transformers

Optical Voltage Transformer

Voltage Transformer Testing

Demonstration of CT Insulation Resistance Testing - Part 1

Demonstration of CT Insulation Resistance Testing - Part 2

Demonstration of CT Ratio Testing

Demonstration of Excitation Test for a CT

Demonstration of Potential Transformer (PT) Insulation Resistance Testing

Demonstration of PT D67 Winding Resistance Testing

Demonstration of PT Ratio Testing

Assessment on Instrumentation Transformers

Introduction to Overcurrent Protection

Fuses and Miniature Circuit Breaker for protection

Fundamental Principles of Overcurrent Relays

Relays used in Overcurrent Protection

Overcurrent Relay settings Principles Part 1

Overcurrent Relay settings Principles Part 2

Principles of Time/Current Grading

Example of Overcurrent Relay Co-Ordination

Directional Overcurrent Protection

Earth Fault Protection

Over Current Protection - Earth Fault Relay Connections and Settings

Demonstration set up of Overcurrent Protection Relay

Demonstration of Universal 3-Phase Secondary Injection Test Kit

Demonstration of Overcurrent Protection - Part 1

Demonstration of Overcurrent Protection - Part 2

Assessment on Overcurrent Protection Relays

Introduction to Differential relays

Current based Differential Relay

Merz Price Differential Relay

Voltage based Differential Relay

Applications of Differential Relay

ANSI/IEEE Device Numbers and Electric Diagrams of Differential Relays

Pilot Wire Differential Relays Device 87L

Ungrounded Systems

Resistance Grounding

Reactance Grounding

Sensitive Ground Relaying

Ground Fault Protection

Demonstration of Differential Protection -Part1

Demonstration of Differential Protection -Part2

Assessment on Differential relays and system grounding protective relaying

Introduction to AC Motors

Motor Protection Requirements

Start / Stall Protection of AC Motors

Short Circuit & Thermal Overload Protection of AC Motors

Earth Fault Protection of AC Motors

Negative Phase Sequence Protection of AC Motors

Single Phasing of AC Motors

Phase Reversal Protection of AC Motors

Under Voltage Protection of AC Motors

Comprehensive Motor Protection

Out of Step Protection of Synchronous Motors

Loss of Excitation Protection of Synchronous Motors

Demonstration of DOL Starters for Induction Motor-Part 1

Demonstration of DOL Starters for Induction Motor-Part 2

Assessment on Motor protection