Power Transformers: Operation and Maintenance

Power Transformers: Operation and Maintenance

Dafam Fortuna Hotel, Yogyakarta | 08 – 11 April 2015 | IDR 7,000,000
Dafam Fortuna Hotel, Yogyakarta | 01 – 04 Juli 2015 | IDR 7,000,000
Dafam Fortuna Hotel, Yogyakarta | 02 – 05 September 2015 | IDR 7,000,000
Dafam Fortuna Hotel, Yogyakarta | 08 – 11 Desember 2015 | IDR 7,000,000

 

 

DESCRIPTION

Installation of high voltage distribution and transmission equipment has increased significantly over the years due to ongoing global demand for power. As a result, the need to ensure the reliability of operation of power systems is paramount. Power transformers are among the most important and most expensive components of power systems, their failure can impose extraordinarily high costs on plants, factories and utilities of all descriptions.

It is critical that all personnel operating and working with such equipment have a sound knowledge of their operational requirements and maintenance.

This practical workshop provides knowledge on both the theory and operation of Power Transformers. The course will develop and enhance an understanding of what is involved in the maintenance of these essential components of the power systems, through the tips and tricks learnt and developed by some of the World’s preeminent electrical engineers.

OBJECTIVE

• An understanding of the fundamental theory and principles of the operation of power transformers
•  An insight into the identification and application of transformers’ types
• An understanding of the power transformers components and their construction
•  Knowledge of power transformer protection
•   An understanding of power transformers oil and oil tests and interpretation of results
•  Knowledge of the most effective power transformer electrical tests
• Skills in how to manage power transformer breakdowns to ensure a minimum disruption.

WHO SHOULD ATTEND

• Power System Engineers
• Electrical Engineers
• Consulting Engineers
• Project Engineers
• Power System Technicians
• Electrical Contractors
• Electrical Technicians
•  Tradesman Electricians
• Electrical Inspectors
• Utility Engineers

POWER TRANSFORMERS SUMMARY OUTLINE

TRANSFORMERS MAIN FUNCTIONS AND CLASSIFICATION

•  Construction (Shell Type, Core Type)
• Classification and Type in relation to Insulation, Windings, Core, Cooling Systems, Voltage level, Sizing, Tank, Breathing action
• Transformer parts

POWER TRANSFORMERS AND SAFETY

• How to install, operate and work with High Voltage Power Transformers safely
•  Earthing of HV Transformers

TRANSFORMER THEORY

• Electrical values and their definition in a power transformer – Voltage, Current, Number of turns, Impedance and their interrelation

OPERATION OF POWER TRANSFORMERS IN A POWER SYSTEM

•   Thermal performance, loading, paralleling, tap-changing, Connections and Vector groups

POWER TRANSFORMER PROTECTION

• Surge protection
•   Protective relaying (Differential, Overcurrent, Earth fault)
•   Buchholz relay, Pressure relief relay
•  Thermal devices and instruments (Oil temperature Alarm and Trip, Winding temperature Alarm and Trip)

AUTO-TRANSFORMERS

•  Design criteria
•  Specifications

GENERATOR TRANSFORMERS

• Design criteria
•  Specifications

UNIT TRANSFORMERS

• Design criteria
•  Specifications

STATION TRANSFORMERS

• Design criteria
•  Specifications

POWER TRANSFORMER OIL AND OIL QUALITY

•  Oil contents:Water, Acidity, Dissolved gas
• Oil tests: Dielectric breakdown, Moisture, Resistivity, Interfacial tension, Specific gravity, Power factor, Furan analysis.
• Recovery Voltage Measurement test

POWER TRANSFORMER ELECTRICAL TESTS:

• ac Tests:

1.  Power factor tests (Insulation, Oil, and Bushings)
2.  Single Phase Excitation Current Test
3. Transformer Turns Ratio Test

•  dc Tests:

1.  Insulation Resistance Test
2. Dielectric Absorption Test
3. Polarisation Index Test
4.  Step Voltage Test
5. Hi-Pot Test

PREVENTATIVE MAINTENANCE ON POWER TRANSFORMERS

• Techniques to improve life expectancy
• SUMMARY, OPEN FORUM & CLOSING

COURSE SPEAKER

Teguh Santoso, Ir
Teguh Santoso experienced more than 26 years in Electrical.

COURSE METHODE

• Presentation
• Discuss
• Case Study
• Evaluation
• Simulation

TIME & VENUE

• Dafam fortuna Hotel, Yogyakarta
• 08 – 11 April 2015
• 01 – 04 Juli 2015
• 02 – 05 September 2015
• 08 – 11 Desember 2015
• 4 days – 08 am – 04 pm

COURSE FEE

IDR 7.000,000.00 per participant non residential

FACILITY

• Module / Handout
• Certificate
• Souvenir
• Training Kit

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