How can we help you today?

What is the formula to determine the current rating on a Transformer?

Issue:
How can you find out the current rating of a transformer?

Product Line:
LV Transformers

Environment:
Applies to Low Voltage Transformers by SquareD/Schneider Electric

Resolution:
For a three phase Transformer, divide VA rating (10 KVA = 10,000VA) of the transformer by the the load line-to-line voltage and by 1.732 (the square root of 3,).  For a single phase Transformer, divide KVA rating of the transformer by the the load line-to-line voltage.

Example: Three phase 10KVA = 10,000 /240/1.73 = 24A. for Single phase -  10,000/240 = 41.66A

Schneider Electric Canada

Users group

Discuss this topic with experts

Visit our community and get advice from experts and peers on this topic and more

Need help?

Need help?

Product Selector

Product Selector

Quickly and easily find the right products and accessories for your applications.

Get a Quote

Get a Quote

Start your sales inquiry online and en expert will connect with you.

Where to buy?

Where to buy?

Easily find the nearest Schneider Electric distributor in your location.

Help Center

Help Center

Find support resources for all your needs, in one place.

  • Help and Contact Center
  • Contact Sales
  • Find our Offices
  • Where to Buy
  • Careers
  • Company Profile
  • Investors
  • Newsroom
  • Report a Misconduct
  • Product Documentation
  • Product Selectors
  • Software and Firmware
  • Product Substitution and Replacement
  • Blog
  • Events
  • Schneider Electric Community
  • Sustainability
  • Legal Information
  • Privacy Policy
  • Cookie Notice
  • Terms of use
  • Change your cookie settings