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Question

Are You Utilizing Staggering Transformer Taps on Parallel Transformers?

Leo St. Hilaire's picture
Technical Advisor GCC eLab

Over 40 years of utility experience with twenty five (25) years’ experience in Supervisory and Managerial roles in power system operations. I have advance technical knowledge in Operations and...

  • Member since 2021
  • 9 items added with 748 views
  • Dec 13, 2021
  • 399 views

Greeting. In your region or country, are there utilities practicing running their parallel Bulk Supply Point transformers with staggered taps, resulting in circulating current and reducing the high side voltage? How about those transformers connected in parallel feeding the distribution network?

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Leo - do you have a link to a source that describes this transmission technology in simple(r) terms? Thanks

Leo St. Hilaire's picture
Leo St. Hilaire on Jan 13, 2022

I have attached a jpg showing what is being done at the transmission level here. I have only found reference to staggering taps on the distribution system side to reduce transmission voltage. It is an IEEE article and can be found at link below. I could not find any papers on performing staggered taps at the transmission level, which is why I am asking the question.

https://ieeexplore.ieee.org/document/8260204

 

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