Course Description

INTRODUCTION

This  Electrical Distribution Equipment Operation and Maintenance training seminar will take a closer look at the equipment installed in and electrical installation. Safety, security and reliability are the main attributes of all electrical equipment installed. It has to be well designed, installed and commissioned. A well-planned maintenance regime is essential to ensure safe operations and trouble-free electrical operations.

Competent workforce and sophisticated testing, measuring and diagnostic instruments are important to avoid system downtime. Distribution equipment plays an important role in the safe distribution of electrical power. Arc flash hazards analysis is vital to ensure that the equipment needs to be operated in a safe manner securing continuity of supply to consumers.

Objectives

At the end of this training seminar, participants will learn to:

The need and management for maintenance

Management and implementation of safe systems of work

Co-ordination of maintenance activities and maintaining system safety

Switchgear maintenance - transformer maintenance

Cable installation and rating; condition monitoring using non-intrusive technology

Routine inspections, properties of insulating oils

The benefit of this course

An understanding of the need for routine inspection

Using selected videos and case studies to illustrate the material being discussed

An emphasis on ensuring material is appropriate to the organisations being represented

An awareness and understanding of the course objectives

The need for a 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

Course Outline

DAY 1

Introduction, Electric Hazards and Safety

Goals and Discussion

The Smart Grid Architecture

Maintenance of Electrical Equipment

Managing Maintenance

Safety Culture

Safety Integrity Level (SIL)

Electrical Safety Rules

Electrical Hazards and Emergencies

DAY 2

Power Network Fundamentals and Systems Protection

Power Network Fundamentals

Faults and Protection

Fault Levels for transformer

Types of the Protection Relay

Numerical Relays

Arc Flash Mitigation

Importance of Earthing

Network Earthing

DAY 3

Power and Distribution Transformers Operations and Maintenance

Transformer Characteristics

Transformer Cooling and Protection

On-load Tap Changer Operation

Transformer Site Testing

Transformer Maintenance

Dry Transformer

Gas Insulated Transformer (GIT)

Ester base Oil for New Power and Distribution Transformers

DAY 4

Circuit breakers, Switchgear and Condition Monitoring

Circuit Breaker Ratings and Operation

Circuit Breaker Examples

Switchgear Maintenance

Alternatives to SF6 Gas

HV Vacuum Circuit Breakers

Hybrid Outdoor Circuit Breakers

Instruments for Partial Discharge Monitoring

Instruments for Thermal Imaging and Corona Detection

DAY 5

Gas-insulated Switchgear Common Voltage Cables Faults and Locating Methods

Overview of Gas-insulated Switchgears

Power Cables Construction and Characteristics

Common Underground Cable Faults

Cable Fault Locating

Heat Shrink and Cold Shrink Cable Terminations and Joints

LV Wiring and Cabling Systems.