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Transformer Operational Principles, Selection and Troubleshooting

Transformer Operational Principles, Selection and Troubleshooting

Dafam Fortuna Hotel, Yogyakarta | 06 – 09 January 2015 | IDR 7,000,000
Dafam Fortuna Hotel, Yogyakarta | 16 – 19 February 2015 | IDR 7,000,000
Dafam Fortuna Hotel, Yogyakarta | 09 – 12 Maret 2015 | IDR 7,000,000
Dafam Fortuna Hotel, Yogyakarta | 08 – 11 Juni 2015 | IDR 7,000,000
Dafam Fortuna Hotel, Yogyakarta | 16 – 19 November 2015 | IDR 7,000,000

 


DESCRIPTION

Transformer are major components of electrical power systems. This course combines theoretical and practical aspects of transformer design, operation, maintenance and troubleshooting. The course emphasizes the importance of the magnetic properties of the core design on the transformer’s operational performance and electrical properties. It addresses economic trade-offs of transformer in real-world applications.



WHO SHOULD ATTEND

Electrical engineering professionals who need to update their knowledge, distribution system planners, maintenance managers, and power system consultants. The participants should have a basic understanding of power system operations, but do not necessarily have to be experts. Also, the engineers who are starting their career in the field of power in utilities, industrial or commercial plants and institutional complexes will benefit from this course.



SUMMARY OUTLINE

1.      Basic Transformer Theory

  •  Currents and magnetic fields
  • Air core transformer
  • The magnetic circuit
  •  The B-H curve
  • Hysteresis, and eddy current losses
  •  Iron or steel core transformer
  • Equivalent circuit of an iron core  transformer
  • The practical transformer
  •  Magnetizing currents and harmonics
  • Voltage considerations
  • Thermal considerations

2.      Power Transformers

  •  Rating and classifications
  • Short circuit duty
  •  Efficiency and losses
  • Construction
  • Accessory equipment
  • Inrush current
  • Modern and future developments

3.      Distribution Transformers

  • Construction
  • General transformer design
  • Transformer locations
  •  Transformer losses
  • Performance
  • Transformer loading
  •  Special tests
  •  Protection
  • Economic application

4.      Underground Distribution Transformers

  •  Vault installations
  • Surface operable installations
  •  Pad mounted distribution transformers

5.      Dry Type Transformers

  • Dry type transformers

6.      Transformer Connections

  •  Polarity of single-phase transformers
  • Angular displacement of three-phase transformers
  • Three-phase transformer connections
  • Advantages and disadvantages of the Y-Y connection
  • The Y-delta and delta-Y connection
  •  The Y-delta grounding bank
  •  Zigzag connections
  • Comparisons of economy
  • Three phase banks using single phase transformers
  •  Transforming two-phase voltages into three-phase voltages
  • The scott-connected connection
  • Autotransformers and three-winding transformers
  • Parallelling of transformers
  • Adjournment

7.      Loading Power Transformers

  •  Design criteria
  •  Nameplate ratings
  • Other thermal characteristics
  •  Thermal profiles
  •  Temperature profiles
  • Temperature measurements
  • Predicting thermal response
  • Load cyclicality
  •  Water in transformers under load
  • Voltage regulation
  •  Loading recommendations

8.      Auxiliary Equipment

  • Bushings types, standards, design parameters, and testing
  •  Oil preservation systems
  • Cooling equipment
  • Temperature and oil level gauge

9.      Load Tap Chargers (LTCs)

  • Design and applications of load tap changers
  • Rated characteristics and requirements for load tap changers
  • Selection of load tap changers
  • Maintenance of load tap changers
  • Refurbishment replacement of old LTC types

10.  Transformer Selection and Application

  •  Most economical transformer for your applicatio

11.  Transformer Protection

  • Fuses and relays
  • Gas relays
  •  Differential protection
  • Code requirements

12.  Transformer Installation

  • Transformer installation
  • Sample transformer acceptance check list

13.  Testing Transformers

  • Standards, and classification of tests
  • Sequence of tests
  •  Voltage ratio and proper connections
  • Insulation condition
  • Dielectric withstand
  • Performance characteristics
  • Other tests
  • Adjournment

14.  Maintenance and Troubleshooting

  • Sample operating and maintenance instructions
  • Preventative maintenance and predictive maintenance
  • Gas in oil analysis
  •  Water in oil analysis
  • Drying techniques
  • Oil dielectric tests
  • Sample transformer maintenance checklist
  • Problem and failure investigations
  • Problem analysis after sever operating conditions where no failure is involved
  • Failure investigations

15.  Power Transformer Equipment Standards and Processes

  • Major standards organizations
  • Process for acceptance of American National Standards
  • Relevant power transformer standards documents

16.  On-Line Monitoring of Liquid-Immersed Transformers

  •  Benefits
  • On-line monitoring systems
  • On-line monitoring applications
  • Concluding Remarks and Final Adjournment



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, Jl. Dagen 60 Malioboro Yogyakarta
  • 06 – 09 January 2015
    16 – 19 February 2015
    09 – 12 Maret 2015
    08 – 11 Juni 2015
    16 – 19 November 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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