# What are the application three-line electrical diagrams?

**URL:** <https://forumautomation.com/t/what-are-the-application-three-line-electrical-diagrams/889>\
**Category:** Electrical\
**Created:** [March 20, 2016, 7:53pm UTC](https://forumautomation.com/t/what-are-the-application-three-line-electrical-diagrams/889 "2016-03-20T19:53:09Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![denizen](https://forumautomation.com/letter_avatar_proxy/v4/letter/d/848f3c/32.png) [@denizen](https://forumautomation.com/u/denizen)\
**Post date:** [March 20, 2016, 7:53pm UTC](https://forumautomation.com/t/what-are-the-application-three-line-electrical-diagrams/889/1 "2016-03-20T19:53:09Z")

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**Applications of Three-Line diagrams**

1.Details design of power and control circuit for electrical switch-gear assemblies and load control center.

2.Phase sequencing representation

3.Displaying differential relay setting

4.Displaying potential and current transformer settings.

5.Maintenance and circuit repair.