Power Transformer Protection

Course Number: E-4058
Credit: 4 PDH
Subject Matter Expert: Velimir Lackovic, Electrical Engineer
Price: $119.80 Purchase using Reward Tokens. Details
Overview

In Power Transformer Protection, you'll learn ...

  • Types of transformer short circuits
  • Factors that limit the magnitude of a transformer winding fault
  • Causes of abnormal stresses in a transformer
  • Methods of power transformer protection

Overview

PDHengineer Course Preview

Preview a portion of this course before purchasing it.

Credit: 4 PDH

Length: 60 pages

The advancement of electrical power systems has been reflected in the developments in power transformer manufacturing. This has led to a wide range of power transformers. Their ratings range from a few kVA to several hundred MVA and they are used for a wide variety of applications.

Power transformer protection varies with the application and transformer importance. In the case of a fault within the power transformer it is important to minimize tripping time in order to decrease the impact of thermal stress and electro-dynamic forces. Distribution power transformers can be protected by using fuses or overcurrent protection relays. This leads to time-delayed protection due to downstream co-ordination requirements. Nevertheless, time delayed short circuit clearance is unacceptable on larger power transformers due to system operation/stability and cost of repair.

This course is intended for electrical engineers with a desire to understand power transformers protection fundamentals. Presented information includes details related to interturn, tank and core faults. Information on over-voltages, magnetizing inrush, overheating is also included.

Specific Knowledge or Skill Obtained

This course teaches the following specific knowledge and skills:

  • Power transformer fault background
  • Power transformer differential protection
  • Power transformer restricted earth fault and overcurrent protection
  • Phase correction and filtering of zero sequence currents
  • Over fluxing and tank-earth protection
  • Buchholz protection
  • Earthing transformer protection
  • Autotransformer protection
  • Non unit and unit protection schemes
  • Power transformer condition monitoring

Certificate of Completion

You will be able to immediately print a certificate of completion after passing a multiple-choice quiz consisting of 35 questions. PDH credits are not awarded until the course is completed and quiz is passed.

Board Acceptance
This course is applicable to professional engineers in:
Alabama (P.E.) Alaska (P.E.) Arkansas (P.E.)
Delaware (P.E.) Florida (P.E. Area of Practice) Georgia (P.E.)
Idaho (P.E.) Illinois (P.E.) Illinois (S.E.)
Indiana (P.E.) Iowa (P.E.) Kansas (P.E.)
Kentucky (P.E.) Louisiana (P.E.) Maine (P.E.)
Maryland (P.E.) Michigan (P.E.) Minnesota (P.E.)
Mississippi (P.E.) Missouri (P.E.) Montana (P.E.)
Nebraska (P.E.) Nevada (P.E.) New Hampshire (P.E.)
New Jersey (P.E.) New Mexico (P.E.) New York (P.E.)
North Carolina (P.E.) North Dakota (P.E.) Ohio (P.E. Self-Paced)
Oklahoma (P.E.) Oregon (P.E.) Pennsylvania (P.E.)
South Carolina (P.E.) South Dakota (P.E.) Tennessee (P.E.)
Texas (P.E.) Utah (P.E.) Vermont (P.E.)
Virginia (P.E.) West Virginia (P.E.) Wisconsin (P.E.)
Wyoming (P.E.)
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PDHengineer Course Preview

Preview a portion of this course before purchasing it.

Credit: 4 PDH

Length: 60 pages

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