Protective Relaying

COURSE DESCRIPTION:

This 12-hour practical course provides you with methods and procedures used internationally in maintaining and testing power transformers in substations. This course will discuss the difference and importance of Predictive, Periodic and Condition-based maintenance in transformers; that may help maintenance personnel in planning and executing maintenance programs in power transformers. The course will also focus on the basic theoretical concept of transformers, how they are manufactured and know different parts to maintain. The course will teach attendees to conduct correct testing procedures, what test to perform, evaluation of test data versus international guidelines and mitigation of findings. The course content does not include intensive DGA (dissolved gas analysis) and oil test evaluation.
In this technical training, participants will be guided on how to become a knowledgeable maintenance engineer and improve their knowledge based on international standards to safely maintain and prolong power transformers in their respective fields.

COURSE OUTLINE
At the end of the program, the participants will be able to:
 A. Discuss basic transformer theoretical fundamentals.
 B. Know different parts of the transformer, what to look and what to maintain
 C. Know different international standards used for evaluating transformer test results.
 D. When to execute transformer maintenance and diagnostic testing-in timely manner.
 E. Enumerate basic oil and transformer testing methodology protocol.
 F. Know different testing methodologies and correct testing procedures.
 G. Identify and evaluate obtained results
 I. Discuss test results and know basic corrections in findings

DAY 1 (6 hours)
I. Power Transformer Theory:
  A. Introduction
  B. Theory of Operation
  C. Electromagnetism
  D. Magnetic Circuits
  E. Classification of Transformers
  F. Losses in Transformers
  G. Performance Tests
  H. Basic Insulation System
  I. Transformer Rating
  J. Transformer Connections
II. Power Transformer Parts and Maintenance
  A. Types of Power Transformer
  B. Major and minor components
  C. Basic maintenance, what to look, test and maintain
  D. Indicators and alarms
  E. Cooling classifications
  F. Nameplate information
  G. Periodic, Predictive and Condition Based Maintenances
  H. Types of Maintenance done in a power transformer
  I. Types of diagnostic tests done in a power transformer

III. Theory and Procedures for Transformer Electrical Test
  A. Insulation Power Factor Test
  B. Insulation Resistance Test
  C. Transformer Turns Ratio Test
  D. Winding Resistance Test
  E. Special Test Topics
      i. Excitation Test
      ii. Bushing IPF Test
  F. Impedance Test
      i. SFRA Test
      ii. DGA and Oil Quality Test
  G. New technologies in diagnostic testing

DAY 2 (6 hours)
IV. HANDS-ON: Power Transformer Testing
  A. Actual hands-on testing
      i. Insulation Power Factor
      ii. Excitation Current
  B. Safety procedures in conducting electrical tests
      i. Insulation Resistance
      ii. Winding Resistance
  C. Transformer Turns Ratio
  D. Evaluation and presentation of findings
  E. Case studies
  F. Question and Answer

No. of Days:	2
Total Hours:	16