Electrical Distribution Equipment Operation and Maintenance

Introduction

Distribution equipment plays an important role in the safe distribution of electrical power. The equipment needs to be operated in a safe manner securing continuity of supply. This requires the equipment to be designed, installed, commissioned, operated, and maintained in a satisfactory manner within a management system that is effective in meeting the reliability goals within budget targets.

This course focuses mainly on the operation and maintenance of distribution equipment with reference to auxiliary equipment necessary for its operation.

Objectives

Delegates will gain a detailed appreciation of the following:

• The need for maintenance
• Management of maintenance
• Management and implementation of safe systems of work
• Co-ordination of maintenance activities
• Switchgear maintenance
• Transformer maintenance
• Cable installation and rating
• Condition monitoring using non-intrusive technology
• Routine inspections
• Properties of insulating oils
• Maintaining system safety
• The need for accurate records and documentation

Target Audience

The course is aimed at Managers, Engineers, and Technicians responsible for the operation and maintenance of distribution equipment who will benefit from sharing experiences in the planning, organization, and implementation of maintenance activities.

Electrical Engineering Outline

The course covers the following topics:

Introductions and Safety

• Goals discussion
• Maintenance of electrical equipment
• Managing maintenance
• Safety
• Electrical emergencies
• Safe working distances
• Intersystem safety precautions
• Wrap up session

Power Network Fundamentals

• Power network fundamentals
• Faults and protection
• Fault levels
• Earthing introduction
• Network earthing
• Earthing systems
• Earth bonding

Transformers

• Transformer characteristics
• Transformer cooling
• Transformer protection
• On load tap changer operation
• Transformer site testing
• Transformer maintenance

Switchgear

• Circuit breaker history
• Circuit breaker ratings and operation
• Circuit breaker examples
• Switchgear maintenance
• Fault reporting
• Properties and deterioration of insulating oils
• Thermal imaging
• Condition monitoring

Cabling

• HV cable ratings and installation methods
• HV cable volt drop
• LV cabling systems and introduction to the wiring regulations
• Cable fault locating
• Course review and open session