Course Details

Objective

Following the attendance at this seminar, participants will return to their respective departments equipped with new or refreshed skills to ensure that electrical generating equipment and it’s control systems are inspected, tested, maintained and when necessary repaired using well planned troubleshooting procedures in a fashion that ensures reduced costs and/or down time plus identified faults or problems are repaired and the underlying causes are identified and eliminated to reduce further failures. On successful completion of this seminar, participants will have: 

• A better understanding of generator principles
• A better understanding of troubleshooting procedures as applied to generating equipment
• An improved capability in the use of test equipment
• A better understanding of failure modes and failure analysis
• A refreshed awareness of electrical safety concerns

Content

DAILY OUTINE

Day 1

Definitions

• Generator systems (AC) and equipment
• Generator systems (DC) and equipment
• Operation, inspection, testing, control, maintenance and troubleshooting
• Control systems

Interpretation and Use of Drawings

• Single-line electrical drawings
• Control schematics
• Wiring lists
• P&ID’s
• Logic and standard symbols
• Maintenance Planning
• Developing schedules and procedures
• Define operation requirements for parts and labor
• Define maintenance requirements for parts and labor
• Regular, preventative, predictive and emergency maintenance

The Use of Test Equipment

• Digital voltmeter (DVM)
• Oscilloscopes
• Megger
• Frequency meter
• Temperature probes/pyrometers
• Ammeters
• Power meters
• Load banks
• Digital hydrometers
• Cable fault locators

Day 2

The Technology of Generators

• Principles of electrical generation (AC, DC and Emergency)
• Power supplies (battery chargers, rectifiers, inverters)
• Batteries
• Generator Drivers (gas/steam/water turbine, diesel/gas engine)
• Governors (control systems)
• Programmable logic controllers (PLC)
• Synchronization
• Power grid and network considerations

Day 3

The Technology of Generators

• Increasing or decreasing the voltage (transformers)
• Neutral ground resistors (NGR)
• Switchgear
• Motor control centers (MCC)
• Disconnect switches
• Power monitoring
• Control relays/timers/switches
• Generator protective devices

Inspection and Testing of Generators

• Methods
• Terminology
• Principles
• Special techniques
• NEC check lists

Day 4

Troubleshooting of Generators

• Methods
• Terminology
• Principles
• Special techniques
• Case studies/examples
• Single line drawings
• Group exercises

The Development of a Job Plan

• Identification of the troubleshooting step-by-step sequence
• Procedure preparation
• Documentation
• Follow-up
• Safety considerations and training

A Review of Safety Requirements

• Area classifications
• NEC electrical codes
• Safety information

Day 5

The Identification and Repair of Problems/Failures

• Common mode failures
• Phase imbalance
• Contact pitting/arcing
• Electronic component failure
• Fusing
• Generator windings/bearings/brushes
• Excitation circuits
• Battery cells
• Inverters/rectifiers/battery chargers
• Bushings
• Switches
• Control circuits
• Ground faults

NOTE:
Pre & Post Tests will be conducted
Case Studies, Group Exercises, Group Discussions, Last Day Review & Assessments will be carried out.

Methodology

A highly interactive combination of lecture and discussion sessions will be managed to maximize the amount and quality of information, knowledge and experience transfer. The sessions will start by raising the most relevant questions, and motivate everybody finding the right answers. The attendants will also be encouraged to raise more of their own questions and to share developing the right answers using their own analysis and experience.

All attendees receive a course manual as a reference.

• 30% Lectures
• 30% Workshops & Work Presentations
• 20% Case Studies & Practical Exercises
• 20% Videos & General Discussions