Course Details
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Course Description
This course will provide the candidates with extensive knowledge including tips, tricks and tools covering the fundamentals of power transformers and their testing. It will greatly assist you in communicating more effectively with your electrical engineering colleagues. At the end of this course, the candidates will be familiar with the importance of transformer testing and their purpose, the different kinds of transformer tests and their procedures and the practical applications of principals applied in transformer operation and maintenance.
The Training Course Will Highlight ?
This course aims at providing a comprehensive understanding of principles of operation, types, selection, testing and commissioning, protection, maintenance and troubleshooting of electric power and distribution transformers.
Training Objective
This course aims at providing a comprehensive understanding of principles of operation, types, selection, testing and commissioning, protection, maintenance and troubleshooting of electric power and distribution transformers.
Target Audience
Electrical Engineers, Supervisors and Foremen, Maintenance Engineers & Technicians, Maintenance Supervisors, Power Electricians, Power Engineers.
Training Methods
This interactive Training will be highly interactive, with opportunities to advance your opinions and ideas and will include;
- Lectures
- Workshop & Work Presentation
- Case Studies and Practical Exercise
- Videos and General Discussions
Daily Agenda
Principles of Operation of Transformers
- Electric currents and magnetic fields
- Ideal transformers
- The B-H curve
- The magnetic circuit
- Hysteresis and eddy current losses
- Steel core transformer
- Equivalent circuit of a steel core transformer
- Efficiency and losses
- Magnetizing currents and harmonics
- Voltage considerations
- Thermal considerations
- Major standards organizations
- Process for acceptance of American national standards
- Relevant power transformer standards documents
Kinds of Tests
Routine test
Type test
Special test
- Transformer Tests
Measurement of winding resistance
Measurement of voltage ratio and check of voltage vector relationship
Measurement of impedance voltage/short-circuit impedance (principal tapping) and load loss
Measurement of no load loss and current
Measurement of insulation resistance
Dielectric tests
Temperature rise
Test on on-load tap changers
Short-circuit test
Measurement of acoustic noise level
Measurement of the harmonics of the NLC
Measurement of power taken by fans/oil-pumps
Magnetizing current test
Magnetic balance test
- Insulating Oil
Characteristic of insulating oil
Causes of deterioration of insulating oil
Testing of insulating oil
Inhibitors
- Testing Transformers
Standards and classification of tests
Sequence of tests
Voltage ratio and proper connections
Insulation condition
Dielectric withstand
Performance characteristics
Other tests
- Maintenance and Troubleshooting
Preventative maintenance and predictive maintenance
Gas in oil analysis
Water in oil analysis
Drying techniques
Oil dielectric tests
Problem and failure investigations
Problem analysis after severe operating conditions
Where no failure is involved
- Transformer Protection
Fuses and relays
Gas relays
Differential protection
- Power Transformers
- Distribution Transformers
- Underground Distribution Transformers
- Transformer Connections
- Loading Power Transformers
- Auxiliary Equipment
- Transformer Selection and Application
Accreditation
BTS attendance certificate will be issued to all attendees completing a minimum of 80% of the total course duration.
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