:: DEFINE | Management Consultancy & Training Provider In UAE, Abu Dhabi,Dubai,Saudi Arabia ::

FAULT ANALYSIS IN ELECTRICAL NETWORKS

Location

Dubai, UAE

Date

From Date: 11-Aug-2025
To Date: 15-Aug-2025

Duration

5 days

Language

ENGLISH

Discipline

ELECTRICAL & POWER ENGINEERING

Introduction

The continuity of the Electrical Power Supply is very important to the consumers, especially for the industrial sector, where curtailing of electrical power supply is costly.
Electrical systems are subjected to several external & internal influences like weather conditions, lightning phenomenon, pollution, insulation failure, temperature rise, etc., these influences cause abnormal operational conditions, which could lead to voltage and frequency variations and feeder trips, brown out or black out of the electrical system, and sometimes, may lead to equipment damage or system failure.

Performance and characteristics of electrical system configurations are vital factors in reducing or increasing the effect of faults on the system as earthling systems, switchgear, protective relays, active and reactive power generation, etc.

This course discusses electrical system faults and elements of the system that affect its behaviours during the fault. The cause also will suggest measures to mitigate the problems that would arise. Many utilities need this course which studies the influences of the above-mentioned events on the electrical networks and their effect on the continuity of electrical power supply and how to mitigate these problems.

Objective

By the end of the course, participants will be able to:

Explain the models for generators during a fault and be able to use the models to calculate the fault current at any point in time for a fault applied to the terminal of a generator.
Perform design calculations for choosing a circuit breaker for a system experiencing a balanced three-phase fault at any location.
Describe the advantage of using symmetrical components to analyze unbalanced system operation
Convert between phase values and symmetrical component values.
Draw sequence networks for a given three-phase system for fault analysis.
Analyse unbalanced power systems using symmetrical components.

Audience

This course is intended for Engineers & supervisors who work in transmission, distribution, maintenance, operation, control, and analysis of Utilities & Industrial Electrical Networks.

Content

Day One
Introduction
     • importance of continuity of electrical supply
     • Power system components.
           o Causes of faults
           o Type of faults.

System Grounding
     • Generation units
     • Power transformers
     • Transmission lines
     • Distribution system
     • Arrangement of grounding in the power system

Day Two

Factors Affect the Fault Current Contribution & Continuity of Supply Relation between substation equipment connection and the fault contribution Transformers
• Vector groups
• Parallel transformers with different vector groups
• Grounding transformers (zigzag t., 3wdg.t.,)
• Common & separate grounding resistance (high & low value) for several parallel transformers.

Day Three

Fault Calculations
     • System configurations
     • Per unit values.
     • Symmetrical components
     • Symmetrical & unsymmetrical fault calculations.
     • Short circuit level.
     • Effect of induction machines on the short circuit level.
     • Rupture capacity of the circuit breaker.
     • Methods, to reduce the short circuit level.
     • Peak current limiters.
     • Numerical examples.

Day Four
• Overview of the protection system

• Protection components:

Current transformers,
Voltage transformers,
Relays and circuit breakers.

• Coordination between over current relays for a given system.

Day Five

• Distance and differential relays

• Transmission line protection

• Transformer protection.

• Generator protection.

Note:

Pre & Post Tests will be conducted

Case Studies, Group Exercises, Group Discussions, Last Day Reviews & Assessments will be carried out.

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Certificate

Define Management Consultancy & Training Certificate of course completion will be issued to all attendees.

Methodology

A highly interactive combination of lectures and discussion sessions will be managed to maximize the amount and quality of information and knowledge transfer. The sessions will start by raising the most relevant questions and motivating everybody to find the right answers. You will also be encouraged to raise your questions and to share in the development of the right answers using your analysis and experiences. Tests of the multiple-choice type will be made available daily to examine the effectiveness of delivering the course.

Very useful Course Materials will be given.

30% Lectures
30% Workshops and work presentation
20% Group Work& Practical Exercises
20% Videos& General Discussions

Course Details