Cost Effective Strategies for the Maintenance of Electrical Power Systems

Introduction

Electrical equipment is an expensive investment for the electrical industry. The equipment needs to be operated safely to achieve a maximum return on the initial investment.

This requires the equipment to be:

  • Maintained in a safe manner
  • Operated within an effective management system

The training seminar focuses mainly on maintaining electrical equipment for a cost effective solution.

The training seminar is split into two modules:

MODULE I – Troubleshooting and Maintenance of Electrical Equipment

MODULE II – Fault Finding Techniques on an Electrical Power System

Each module is structured and can be taken as a stand-alone training course; however, delegates will maximise their benefits by taking Module 1 and 2 back-to-back as a two-weeks training course.

Objectives

This training seminar is designed to increase the troubleshooting and fault finding diagnostic skills of engineering teams of a modern power system.

Training Methodology

The goals of each participant are discussed to ensure their needs are fulfilled, as far as possible. Questions are encouraged throughout, particularly at the daily wrap up sessions. This provides opportunities for participants to discuss specific issues and, if possible, find appropriate solutions. General discussions are employed to highlight particular points and to illustrate particular conditions.

Organisational Impact

The training seminar will allow delegates to interact and gain shared experiences of others along with:

  • An understanding for the need for routine inspection and maintenance
  • Troubleshooting techniques on various pieces of electrical equipment
  • Safe working practices being stressed and observed
  • Risk reduction methods investigated

Personal Impact

On successful completion of this training seminar, delegates will understand:

  • The need for routine inspection, adequate maintenance of equipment and accurate record keeping
  • Methods of maintenance management, using safe systems of work
  • How to co-ordinate maintenance activities for best utilisation of time and resources, while ensuring safety is not compromised
  • Switchgear maintenance requirements and troubleshooting techniques.
  • Transformer maintenance requirements and troubleshooting techniques
  • Cable installation and troubleshooting techniques
  • The use of non-intrusive condition monitoring methods

Who Should Attend?

  • Electrical Professionals
  • Electrical Engineers
  • Electrical Supervisors
  • Technicians
  • Professionals responsible for the operation and maintenance techniques

Seminar Outline

MODULE 1: Troubleshooting and Maintenance on Electrical Equipment

DAY 1

Introductions and Safety

  • Pre course assessment
  • Goals and discussion
  • Types of fault and factors affecting fault levels
  • Maintenance of electrical equipment
  • Managing maintenance
  • Safety
  • Balanced and unbalanced faults
  • Safe working practices
  • Safe isolation procedure’s

DAY 2

Maintenance of Electrical Equipment

  • Review of Day 1
  • Electrical systems and components
  • Fault identification
  • Circuit breakers and capacities
  • Earthing Introduction
  • Network earthing
  • Earthing systems
  • Earth bonding

DAY 3

Maintenance Engineering

  • Review of Day 2
  • Predictive Maintenance
  • Preventative Maintenance
  • Reactive Maintenance and Troubleshooting
  • Condition monitoring
  • Electrical Testing for Troubleshooting
  • Transformer maintenance
  • Generator maintenance

DAY 4

Electrical Equipment: Troubleshooting and Maintenance

  • Review of Day 3
  • Transformer components and trouble shooting
  • Maintenance of electric motors
  • Power electronics and Pulse width modulation invertors
  • AC Machine components and problem solving
  • Synchronous Generators
  • Generator maintenance and trouble shooting
  • Variable speed drives

DAY 5

Cabling

  • Review of Day 4
  • Cable fault locating
  • External influences
  • Compatibility of equipment
  • SCADA (supervisory control and data acquisition)
  • Post course assessment

 

MODULE 2: Fault Finding Techniques on an Electrical Power System

DAY 6

Introductions and Safety

  • Pre course assessment
  • Goals and discussion
  • Safety precautions when fault finding
  • Issues around live working
  • Test equipment
  • Personal Safety
  • Fault finding ‘Method A’ for all generators separately exciting with a battery
  • Self-excited control system test ‘method B’  fault symptoms and remedies at no load

DAY 7

Protective Systems of Electrical Equipment

  • Review of Day 6
  • External influences
  • Compatibility of electrical equipment
  • Maintainability of electrical equipment
  • Concepts of protective system protection
  • Power system protection equipment
  • Statutory requirements for safe working practices when fault finding
  • Electrical systems and components
  • Fault identification
  • Protective devices and capacities
  • The purpose of the earth

DAY 8

Maintenance Engineering

  • Review of Day 7
  • The possible reduction/requirement of fault finding by the use of Predictive Maintenance
  • Electrical testing on Transformers for fault finding
  • Electrical testing on Generators for fault finding
  • Electric shock and potential fault energy levels
  • Fault Management

DAY 9

Switchgear

  • Review of Day 8
  • Competence of Engineers carrying out maintenance activities
  • Competence of Engineers carrying out faultfinding activities
  • Overview of switchgear faultfinding and testing
  • Overview of transformer faultfinding and testing
  • Properties and deterioration of insulating oils in an Electric power transformer
  • Thermal imaging
  • HV cable insulation testing and fault finding

DAY 10

Test equipment and protection

  • Review of Day 9
  • LV test equipment
  • HV test equipment
  • Differential protection
  • Required Documentation
  • Post course assessment