This workshop aims to enhance the understanding of Power System Protection systems among plant operators, electricians, field technicians, and engineers. By gaining a comprehensive understanding of power systems and implementing proper management practices, participants will be able to improve plant efficiency, performance, and overall safety.

The workshop is carefully designed to provide a thorough understanding of power system protection on both theoretical and practical levels. It begins with foundational topics, ensuring a smooth transition for engineers and technicians who may need a refresher. The workshop gradually progresses to more advanced applications, covering topics such as the importance of protection, different types of faults and their impacts, calculations of short circuit currents, and system earthing.

Practical exercises are incorporated into the workshop, including simple fault calculations, relay settings, and the evaluation of a current transformer's magnetization curve. These hands-on activities enable participants to apply their knowledge and gain practical experience.

By the end of the workshop, participants will have acquired valuable insights and skills that can be directly applied to their work, contributing to improved power system protection and overall operational efficiency.

Course Objectives:

Participants attending this program will gain a detailed appreciation of the following:

The need for protection
An overview of power system fault analysis
Protection fundamentals
Relay transducers, both current and future
System grounding principles
Over current earth fault protection
Coordination principles
Transformer protection
Generator protection
Bus protection
Motor protection
Line and feeder protection
Principles of relay application

Who Should Attend?

· Electrical Engineers

· Project Engineers

· Design Engineers

· Instrumentation and Design Engineers

· Electrical Technicians

· Field Technicians

· Electricians

· Plant Operators

Course Outlines:

Need For Protection

Selectivity, stability, sensitivity, speed, reliability, dependability, security

Fault Types & Their Effects

Active, incipient, passive, transient, asymmetrical
Phase & earth faults

Simple Calculation of Short

Circuit Currents

Revision of simple formulae
Calculation of short circuit MVA & fault currents
Worked examples

System Earthling

Solid, impedance, touch potentials
Effect of electric shock
Earth leakage protection

Protection System Components

Including Fuses

History, construction & characteristics
Energy let through & applications

Instrument Transformers

Current transformers: construction, performance, specification, magnetization curves
Voltage transformers: types, accuracy, connections

Circuit Breakers

Purpose & duty, clearance times, types

Tripping Batteries

Battery types, chargers, maintenance, D.C. circuitry

Relays

Inverse definite minimum time (IDMT) relay
Construction principles and setting
Calculation of settings - practical examples
New Era - modern numerical relays & future trends

Practical Demonstrations And Sessions

Including simple fault calculations and relay settings

Co-Ordination by Time Grading

Problems in applying IDMT relays

Low Voltage Networks

Air & molded circuit breakers
Construction and installation
Protection tripping characteristics
Selective co-ordination (current limiting, earth leakage protection, cascading)

Principles of Unit Protection

Differential protection - basic principles

Filters