| Start Date | End Date | Country | City |
|---|
+966 920007771
 |
 |
Objectives
At the end of the course participants will learn:
- Fundamental theory and principles of the operation of power transformers
- Insight into the identification and application of transformers types
- Understand the power transformer components and their construction
- Power transformer protection
- Power transformers' oil, oil tests and interpretation of results
- The most effective power transformer electrical tests
- How to manage power transformer breakdowns to ensure a minimum disruption
Outlines
Day 1:
TRANSFORMERS CLASSIFICATION & TYPES
- Construction (shell type and core type)
- Classification and type in relation to insulation, windings, core, cooling
- Voltage level, sizing, tank and breathing action
- Transformer parts
TRANSFORMER THEORY & BASICS
- Electrical values and their definition in a power transformer
- Voltage, current, number of turns, impedance and their interrelation.
- Equivalent Circuit
- Voltage Regulation
- Efficiency & Connections
Day 2:
TRANSFORMERS SPECIFICATIONS
- Design criteria
- Specifications
TRANSFORMERS INSTALLATION
- Indoor installation
- Outdoor installation
- Building dimensions of transformer station
Day 3:
TRANSFORMER TESTS
- Power factor tests (insulation, oil, and bushings)
- Single phase excitation current test
- Transformer turns ratio test
- Insulation resistance test
- Dielectric absorption test
- Polarization index test
OPERATION
- Thermal performance
- Paralleling Operation
- Tap-changing connections
- Vector groups
Day 4:
MAINTENANCE
- Preventive Maintenance
- Routine Maintenance
- Shut-down Maintenance
PROTECTION
• Surge protection
• Protective relaying (differential, over-current and earth fault)
• Buchholz relay and pressure relief relay
• Thermal devices and instruments (oil temperature alarm and trip, winding
Day 5:
FAILURES & CAUSES
- Insulation Failure
- Temperature Failure
- Load Failure
CLOSING & DISSCTION
Who Should Attend
- Power System Engineers & Technicians
- Electrical Engineers & Technicians
- Consulting Engineers & Electrical Contractors
- Tradesman Electricians
- Electrical Inspectors
- Utility Engineers & Technicians
Duration
5 Days
