Transformer Differential Protection Course: Understanding Schematics, Relay Settings and Testing

(1 customer review)

28.45 

Learn how to analyse and troubleshoot transformer differential protection schematics, relay setting calculations and trip characteristics. Study transformer winding connections from vector diagram and drawing relay settings calculations curve. 22 lessons in 3h 53m total course length.

Description

This course deals with transformer differential protection, analyzing schemes, various relay settings and protection testing. We will analyze the transformer differential schematics and talk about current transformers (CTs), CT errors and errors due to the tap changer in the transformers.

Special attention is paid to biased differential protection of transformer and modification of standard scheme by providing a restraining winding which is energized by the through current. We will also discuss relay protection setting calculations, MS Excel calculation sheet & plotting of slope, relay characteristics and trip characteristics.

The last lessons are dedicated to drawing the relay settings calculations curve and finding a point of intersection and drawing protection characteristics.

Power Transformers generally develop rare faults as it is static, totally enclosed and oil-immersed but if these faults sustain the results may be serious unless the transformer is disconnected.

The best way of protecting power transformers against an internal fault is by the method of differential protection scheme since it covers the transformer’ zone of protection. So for a transformer having ratings of 5 MVA and above, the differential scheme serves as an important protection against internal phase-to-phase and phase-to-earth faults.

For more information and more video preview, please go to the course page:

Transformer Differential Protection Course: Understanding Schematics, Relay Settings and Testing

Additional information

Brand

EEP – Electrical Engineering Portal

Manufacturer

EEP Academy

1 review for Transformer Differential Protection Course: Understanding Schematics, Relay Settings and Testing

  1. Edvard

    Recommended! Easy to understand and to start analyzing protection schematics by yourself.

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