Current Transformer Testing 1 - Videos and Related Books

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Summary

Current transformers (CTs) are a link between transmission and distribution systems, and instruments that monitor the currents and other electrical values in the system. They are also the link between T&D systems and equipment, and devices that protect those systems and equipment. And they are the link between T&D systems and revenue metering instruments.
This 34-minute video describes the application, construction, accuracy class ratings, and operation of current transformers in typical installations at substations. Two methods of checking current transformer polarity are also covered.

Training Sessions

CT Application and Construction – 7 minutes
States the functions of a current transformer. Describes common current transformer applications in a substation. Describes the construction of common substation current transformers.

CT Accuracy Class and Operation – 11 minutes
Explains the meanings of CT accuracy class ratings. Describes the basic operation of a current transformer. Explains saturation in a CT core. Describes a CT’s turns ratio and current ratio as they relate to the CT’s current and voltage output.

Polarity Testing: DC Kick Method – 9 minutes
Explains why the polarity of a current transformer is checked. Describes the DC kick method of checking the polarity of a current transformer.

Polarity Testing: Current Method – 7 minutes
Describes the current method of checking the polarity of a current transformer.

Item Code: CT1
Videos
Current Transformer Testing 1 - Instant Video
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Current Transformer Testing 1 - DVD
Show this video in your classroom, or load it on your company server so all your workers can watch and benefit. More info

$ 195.00

Books
Current Transformer Testing 1 - Study Guide
This book reinforces learning from the video. It has informative text and color pictures throughout. Also a good resourse for learning on your own. A handy, compact book. Approximately 40 pages. More info

$ 15.00

Current Transformer Testing 1 - Instructor Guide
Supplementary classroom exercises with quizzes for every session. Approximately 30 pages. More info

$ 15.00