Course NumberEE-03-949
PDH Hours3
Current Transformers

Current Transformers

Author: Velimir Lackovic

Current transformers are a specific transformer configuration used for current measurement. The common engineering laws are applicable to the current transformers and can be used in their design. The most important roles of current transformers are:

  • To transform currents, from a high value to a value that can be easily handled by protection relays and associated instruments
  • To separate and insulate the metering circuit from the high voltage
  • To provide options for standardization of instruments and protection relays with rated currents

This course is suitable for engineers with a desire to understand the fundamentals of current transformers. This course covers measurement error, protection and measurement cores, accuracy classes, core selection and necessary technical requirements that current transformers have to meet. Upon successful completion engineers will be able to address various current transformer terms, specific classes, application purposes and overall core selection process.

Once you complete your course review, you need to take a multiple-choice quiz consisting of twenty (20) questions to earn 3 PDH credits.
Learning Objectives

This course is intended to provide you with the following specific knowledge and skills:

  • Current transformer measurement error
  • Metering cores
  • Protection cores
  • Current transformer core selection
  • Current transformer technical requirements
  • Current transformers specific requirements for different relay protection applications

Download the Course to review and begin earning your PDH credits.

We provide technical courses for PDH credits that meet Board requirements for Professional Engineers, Geologists and Land Surveyors. This courses is guaranteed to be accepted in AK, AL, AR, FL, GA, IA, IL, ID, IN, KS, KY, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, SC, SD, TN, TX, UT, VA, VT, WI, WV, and WY. Before purchasing this course, please confirm that your state Board is listed above.

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