Course Overview

Power system protection structures play a vital role in establishing reliable electrical power systems. Experience in power system protection systems is crucial when it comes to enhancing the reliability of electrical infrastructures. Inadequately designed protection systems may result in major power failures and/or accidents with dire consequences.

Due to the rapidly rising importance of electricity in all our lives, such power failures can have a serious impact on multiple facets of society as well as the overall economy of our respective regions, countries, or even on a global scale.

With the advances in power protection technology in recent years and the sharp increase in renewable energy sources, the design and operation of power protection systems have become even more tricky. This course offers the first principles of power system protection and its application in different scenarios.

What areas will this “Electrical Protection” course cover? This Electrical Protection training seminar will look into the fundamental and critical aspects of electrical installations.

This training program is an all-inclusive course that will discuss elements like operational principles and types of electrical protection, design of different types or relays, short circuit calculations, protection management and design, and protection for motors, feeders, and transformers.

This Zoe training course will empower you with the knowledge in detecting various forms of distress associated with electrical components.

Course Objectives

Upon completing this Electrical Protection course successfully, participants will be able to:

• Study the construction and functions of instrument transformers
• Describe the various types of grounding system and earthing fault protection
• Understand the practical solutions for identifying the correct type of electrical protection for specific scenarios
• Create designs of effective protection schemes
• Comprehend a comprehensive understanding of principles and selection of relays

Training Methodology

This collaborative Electrical Protection training program will comprise the following training methods:

• Lectures
• Seminars & Presentations
• Group Discussions
• Assignments
• Case Studies & Functional Exercises

Like all our acclaimed courses, this program also follows the ‘Do-Review-Learn-Apply’ model.

Organisational Benefits

Companies who nominate their employees to participate in this Electrical Protection course can benefit in the following ways:

• Benefit from an increase in productivity through minimisation of project acceptance, design, and commissioning time
• Obtain technical training and up-skilling to realise the full potential of a competent workforce
• Create a workforce with low resistance to change due to lack of understanding
• Identify opportunities of improvements as a result of gaining a deep understanding of the current state-of-the-art technologies
• Network with technology leaders and other engineers and technicians with strong field experience, to learn from each other’s experiences
• Gain exposure to the standard international procedures in the field of electrical protection
• Be able to bring in a change of attitude in your workforce with continuous follow up of new technologies

Personal Benefits

Individuals who participate in this Electrical Protection course can gain from it in the following ways:

• Understand the types and reasons of electrical faults
• Recognise the various types of electrical protection devices like fuses, circuit breakers and protection relays in an LV and MV electrical system
• Learn about the different types of short circuit currents impact and calculations
• Understand the operations and types of protection relays like the micro-logic, solid-state and numerical relays
• Install and select the appropriate type of relays for specific functions in individual scenarios
• Study the common protection relays for switchboards, feeders, motors, and transformers

Who Should Attend?

This Electrical Protection course would be suitable for:

• Technical professionals employed in transmission or distribution networks
• Technical management professionals
• Electrical department heads
• Engineers and technicians from the electricity supply industry
• Engineers and technical personnel in power utilities or petrochemical plants
• Service professionals of large infrastructure projects
• Maintenance and operations technicians
• Engineering professionals from manufacturing companies
• Engineering professionals operating power and distribution transformers
• Professionals involved in commissioning or maintenance of protection systems

Course Outline

MODULE 1: INTRODUCTION

• Introduction to power system protection
• Introduction to Power Systems
• Power System and Power System Protection Calculations
• Symmetrical Component Methods
• Use of Software Systems for Fault Calculations
• Protection Technologies
• Instrument Transformers
• Circuit Breakers
• Protection of Power Transformers
• Protection Through High Degree of Renewable Energy Sources

MODULE 2: ELEMENTS OF PROTECTION

• Distance Protection
• Protection of HVDC Networks
• Protection of Power Cables and Lines
• Protection of Substations
• Protection of Motors
• Protection of Generators
• Arc Flash Studies
• Frequency and Voltage Protection
• Special Protection Functions
• Wide Arc Protection
• Testing of Power System Protections
• Trends in Power System Protection

MODULE 3: TYPES OF ELECTRICAL PROTECTION DEVICES AND FAULTS

• Importance of Electrical Protection and Control Devices
• Types of Electrical Faults
• Active, Incipient, Passive, Transient, Asymmetrical
• Phase & Earth Faults
• Traits of High Voltage Fuses for Electrical Protection
• Attributes of Circuit Breakers for Electrical Protection
• Microprocessor Overcurrent Relays
• Time, Current, Curves and Logic Discrimination
• Hot and Cold Tripping Curves
• LV Switchboard Protection against Short Circuit

MODULE 4: PROTECTION FUNCTIONS AND INSTRUMENT TRANSFORMERS

• Power System Architecture
• Protection Functions
• Selective Coordination
• Lockout and anti-pumping relays
• Sensors
• Current and Voltage Instrument Transformers
• Types of Relays
• Numerical Relays and Functions

MODULE 5: BUSBAR, TRANSFORMER AND MOTOR PROTECTION SYSTEMS

• Busbar Protection
• Transformer Protection
• Motor Protection
• Capacitor Protection
• Overhead Line Protection
• Type of Related Faults
• Relevant Protection Functions
• Protection Device Coordination

MODULE 6: SIMPLE CALCULATION OF SHORT CIRCUIT CURRENTS

• Revision of Simple Formulae
• Short Circuit MVA & Fault Current Calculations
• Examples & Case Studies

MODULE 7: SYSTEM EARTHING

• Solid, Impedance, Touch Potentials
• Effect of Electric Shock
• Earth Leakage Protection

MODULE 8: GROUNDING SYSTEMS AND EARTH FAULT PROTECTION

• Overcurrent Protection for Phase and Earth Faults
• Unit Protection Schemes
• Distance Protection
• Protection of Feeders Versus Overload and Short Circuit
• Types of Grounding System
• Restricted Earth Fault Protection
• Sensitive Earth Fault Protection
• Protection against Over-voltages

MODULE 9: METHODS OF COMMISSIONING RELAYS, SHORT CIRCUIT CURRENT CALCULATION AND HARMONICS

• Commissioning of Protective Relays
• Calculation of Short Circuit Current
• Fault Topologies
• Short Circuit Current at Fault Point
• Positive, Negative and Zero Sequence Systems
• Triple Harmonics Effects and Mitigation Techniques

MODULE 10: PRACTICAL DEMONSTRATIONS AND SESSIONS

• Including Simple Fault Calculations and Relay Settings
• Co-Ordination by Time Grading
• Problems in Applying IDMT Relays