Substation Safety

Participants will cover the maintenance and testing requirements for common substation devices, including power transformers, oil, air and vacuum circuit breakers, switchgear, ground grid systems, batteries, chargers and insulating liquids. This course focuses on what to do, when to do it and how to interpret the results from testing and maintenance.

Course Objectives

Upon the completion of this course, each participants will be able to

• Learn the damage electricity can cause to the human body and understand the basic principles of safety in normal and abnormal conditions
• Learn to recognize and avoid unsafe work areas
• Learn correct approach distances
• Have a better understanding of proper voltage rated tools and the use of proper personal protection equipment
• Learn how to provide assistance in determining severity of potential exposure to high voltage arc flash hazards, planning safe work practices and selecting proper personal protective equipment.

Who Should Attend?

Designed for electrical maintenance personnel responsible for High Voltage electrical substation systems, supervisory and health and safety professionals who are responsible for overseeing high voltage electrical work.

Course Outline

I. Introduction

• Student introductions
• Pre-Test
• Safety

II. The Substation as a System

• Application
• Common problems
• Ratings

III. Circuit Breaker Maintenance

• Maintenance frequencies
• Inspection
• Testing
• Interpreting test results
• Devices covered
  • Air circuit breakers
  • Vacuum circuit breakers
  • Oil circuit breakers

IV. Insulating Liquids

• Sampling
  • Routine tests
  • Dissolved-Gas Analysis (DGA)
• Testing
• Color
• Dielectric breakdown voltage
• Interfacial tension
• Neutralization number
• Moisture
• Visual
• Dissolved-Gas Analysis (DGA)
• Interpreting test results

V. Transformers

• Types
• Inspection
• Testing
  • Insulation resistance
  • Winding resistance
  • Power factor tests
  • Coree excitation current
  • Turns ratio (TTR)
  • Gas blanket tests

VI. Lightning Arrestors

• Types
• Inspection
• Maintenance
• Testing

VII. Protective Relays

• Application
• Instrument transformers
• Inspection
• Testing
• Calibration
  • Devices covered
  • Voltage
  • Transformer differential

VIII. Ground Grid Systems

• Purpose
• Grounding theory
• Types of test equipment
• Inspection
• Testing

IX. Batteries and Chargers

• Types of station batteries
• Battery systems
• Maintenance
• Inspection
• Testing

Course Methodology

A variety of methodologies will be used during the course that includes:

• (30%) Based on Case Studies
• (30%) Techniques
• (30%) Role Play
• (10%) Concepts
• Pre-test and Post-test
• Variety of Learning Methods
• Lectures
• Case Studies and Self Questionaires
• Group Work
• Discussion
• Presentation

Course Fees

This rate includes participant’s manual, Hand-Outs, buffet lunch, coffee/tea on arrival, morning & afternoon of each day.

Course Timings

Daily Course Timings
08:00 - 08:20       Morning Coffee / Tea
08:20 - 10:00       First Session
10:00 - 10:20       Coffee / Tea / Snacks
10:20 - 12:20       Second Session
12:20 - 13:30       Lunch Break & Prayer Break
13:30 - 15:00       Last Session