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# Transformer And Short Circuit Calculator (MS Excel Spreadsheet)

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## Description

Simple Calculations will furnish base current and extend current capability for identified transformers as well as maximum short circuit current based on infinite MVA at transformer pirmary. Detailed Calculations will provide base load current and short circuit currents for identified transformers considering primary MVA and impedance details for transformer and Utility.

Transformer Tables will provide based and extend rating currents for various sizes and types of transformers.

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1. chandra babu singh
Apr 14, 2023

Required small transformer design calculator in excel sheet

2. Olebogeng
Feb 15, 2023

transformer and short circuit calculation .

3. Edvard
Apr 13, 2022

4. umrani_soomar
Dec 25, 2021

5. ERDEM
Sep 10, 2021

Hi

can you solve the problem

6. Ashish Harkhani
May 26, 2021

7. Ishan Rathnayake
Jan 20, 2021

Thank you very much.

8. AVINASH.GORANTLA
Apr 26, 2020

Thank You.

• Sordii
Feb 11, 2021

9. Nayeem
Aug 03, 2015

Thank You.

10. amr
Feb 01, 2014

thank you very much

11. makoy
Apr 29, 2013

need external reference

12. nasermolki
Apr 18, 2013

Hi
thanks for your very useful website , I learn so much thing here and find answers of many questions
but it is more than a month that i can’t download anything , is it something wrong about your site or it is my computer problem ?

13. quang
Jan 10, 2011

GE Transformer And Short Circuit Calculator (MS Excel spreadsheet)

• [email protected]
Jul 08, 2013

Sir,
I have a query about On load tap changer employed for power transformer. I worked with MR make OLTC’s diverter switch and loading resistors for tape winding. As my understanding the diverter switch changes the polarity of windings that needs to be added to get voltage addition and subtraction. But, I believe that there are Unidirectional & Bidirectional OLTCs based on charging of transformer practiced either in both way(HV/LV for step up and step down) or only one way ( Either Step up or step down) as a understand.But,my doubt is a transformer can be used either for step up or down, But why the OLTCs are classified as unidirectional and bidirectional. Please give me detail clarification on it.
Regards.
T.Sankar