Protection Relay Application
Protection Relay Application
- 2024-01-31
- 8:0
- In person/online
Course description
Course Description: Protection systems are installed in power system to prevent damages of electrical equipment by faults, to isolate a faulty part, and to maintain continuity of supply elsewhere in the system. Modern protection includes multiple protection functions as well as monitoring and recording features, self-diagnostics and analogue and digital data. Although the primary role of protective relays is to perform protection functions, relays also provide additional data and some control functions. The course is interactive and encourages delegates to participate through questions and answers. Case studies help further in better understanding the discussed topics. The course will cover the following: • Power System Fault Analysis • Current and Voltage transformers • Protection Concept • Over Current and Earth Fault Protection • Pilot Wire and Distance Protection • Transformer Protection • HV Circuit Breakers principle of operation and maintenance • Principles of LV motor starts protection and maintenance
Target audience
Training Methodology The latest educational methods and strategies are employed. The course is designed to not only give the required fundamental knowledge but also to provide a strong background for all attendees towards practical industrial applications. Course Certificate: IFM certificate will be issued to all attendees completing minimum of 75% of the total tuition hours of the course.
Course objectives
At the end of the program, participants will be able to:- Course Objective
- • Understand various electrical faults and their effects on the system
- • Learn how to calculate faults
- • Understand the purpose of protection systems and their basic operation
- • Identify types of protection, required for different applications
- • Appreciate the impact of current and voltage transformers in correct operation of protection
- • Understand Circuit Breaker operation and maintenance requirements
- • Understand LV Motor starts and associated issues
Day 1
- Introduction To The Training
- Power System Fault Analysis
- • Power Systems Overview
- • Faults in Power Systems
- • Fault Effects on the Power System
- • Fault Current
- • Short Circuit Calculation Method
- • Symmetrical Components
- • Modelling Components
- • Short Circuit Calculation Procedure
- • Circuit Breakers
- • Types of operation Overview
- • Principles of operation
- • Maintenance requirements in Asset Management
- Introduction to Protection
- • Protection Role
- • Protection Objectives
- • Protection Requirements
- • Protection Basic Principles
- • Protection Types
- • Protection Function Codes
- • Numerical Protective Relays
Day 2
- Current And Voltage Transformers
- • Current Transformers Theory
- • Current Transformer Characteristics
- • Accuracy Class & CT Errors
- • CT Magnetizing Curve
- • Current Transformer Connections
- • Current Transformers Earthing
- • Protection Requirements on CT
- • Voltage Transformers Theory
- • Voltage transformer characteristics
- • VT accuracy & VT errors
- • VT Performance Issues
- • Voltage Transformer Connections
- • Voltage Transformers Earthing
- Overcurrent Protection
- • OC Protection Principle
- • OC Protection Requirements
- • OC Protection Characteristics
- • Directional OC protection
- • OC Protection Applications
Day 3
- Earth Fault Protection
- • EF Protection Principle
- • EF Protection Requirements
- • EF Protection Characteristics
- • EF Protection Typical Data
- • EF Protection Applications
- Transformer Protection
- • Transformer Faults
- • Magnetizing Inrush Current
- • Transformer Protection Requirements
- • Transformer Protection Concept
- • Transformer Differential Protection
- • Restricted Earth Fault Protection
- • HV overcurrent protection
- • LV overcurrent & earth fault protection
- • Neutral earth fault protection
- • Transformer Mechanical Protection
- • Earthing Transformer Protection
- • Transformer Feeders Protection
Day 4
- Feeder Protection
- • Feeders in Power Systems
- • Pilot Wire Protection
- • Pilot wire protection application
- Motor Protection
- • Induction motor protection
- • Protection requirements
- • Thermal considerations
- • General considerations
- • Stalling of motors
- • Too many starts
- • Operation of three-phase induction motors on unbalanced supply voltage
- • Equivalent circuits of motor
Day 5
- • Single phasing
- • Electrical faults in stator and rotor windings
- • Short circuits between phases (internal to motor)
- • Relay to be considered
- • Short circuit to earth
- • Undercurrent, under power, under voltage
- • Differential protection
- • Under voltage during running
- • Under voltage at start-up
- • Additional protection for synchronous motors
- • Example of multifunctional relay
- • Protection co-ordination with the system