# Short Circuit Current Calculation at Various Point of Electrical Circuits (Isc)

Home / Download Center / Electrical Software / Short Circuit Current Calculation at Various Point of Electrical Circuits (Isc)

## Available Fault Current Calculation (Isc Calculation):

### 1) Calculate Short Circuit Current at Substation

###### Inputs:

– Generator kW:
– Type of Supply
– Voltage Line-Line (V L-L)
– Voltage Line-Neutral (V L-N)
– Enter Generator Subtransient (Z)
– Power Factor
– No of Generator in Parallel
– Total Generator kva:
– Secondary Current ( I L-L)

– Secondary Current ( I L-N)
– Maximum Generator Short Circuit Current( Line-Line)
– Maximum Generator Short Circuit Current( Line-Neutral)
– Do You Have any Motor Contributions
– Motor Contributions (Line-Line)
– Motor Contributions (Line-Neutral)

###### Outputs:

– Total Short Circuit Current:( ISC Gen)(L-L)
– Total Short Circuit Current:( ISC Gen)(L-N)

### SEARCH: Articles, software & guides

1. Dennis ventura
Feb 10, 2019

Hi Sir Edvard can you also send this to my email d_rutor@yahoo.com Thank you very much.

2. kiir tong deng
Jul 31, 2018

I need to join EEP memberships network ,for engineering purpose to upgrade my career as power engineer .

3. ANDRÉS ELÍAS PÉREZ LAGUNA
Jun 23, 2018

Buenos días Ing. Edvard cordial saludo, quisiera saber cuando abra una hoja de cálculo de las que ofrecen en forma gratuita, por qué me pide contraseña y si trato de buscarla me dice que debo pagar.
Cómo desbloqueola hoja en Excel para poder trabajar.

Ejemplo la hoja de Nivel de Cortocircuito?
Quedo atento a su respuesta
Feliz día

4. VIJAYARAGHAVAN PONNAIYA
Oct 20, 2017

sir
kindly let me know the cable size calculation complete formula and explain how to use that formula .Even i want to know the various design aspects of electrical design of cable size ,cable selection,

5. Josh Shelton
Dec 01, 2016

Very handy tool. Would like to see the cables listed in AWG size also and standard measurements compared to metrics. I am an American, we are different, haha!

6. Edson Viana from Brazil
Nov 11, 2016

Hi Edvard, good afternoom

Please, do you have a sheet plan to short circuit in CC?

Best regards.

Edson

7. Rohit krishnan
Aug 31, 2016

Hey edward could you please send me a copy of the short circuit calculator xls. Your help would be very much appreciated. Thank You .

8. Bilal mohamed
Aug 15, 2016

Dear sir
i have three question

1-could i know the formula you used from which standard or code you take it ?
2- for Phase Conductor Constant , can you send me the catalogs which took from (because it different from country to other ) ?
3- Do you have an AWG cable size equivalent ? (whith mention your resource )

best regards

9. Senthilnathan
Mar 23, 2016

Sir,
Kindly send the excel tool for SC calculation as I am unable to download. My id: ssnathan4594@gmail.com.. Thanks in advance..

Oct 17, 2015

Dear Edvard,
Request you to send me a copy of the excel file for Short CKT Calcs as I am unable to download from the link.
My mail id: muruga_me@yahoo.co.in
Thanks & Regards,

11. Michael
Aug 31, 2015

you may also consider Short Circuit Analytic software program and mobile apps for short circuit fault current calculations. The program factors in both active and reactive parts of equipment impedance and takes into account fault current contributions from multiples sources including motors and generators:

12. srikanth
Jul 25, 2015

sir
kindly let me know the cable size calculation complete formula and explain how to use that formula .Even i want to know the various design aspects of electrical design of cable size ,cable selection,circuit breaker calculation,trays,etc.
as im new and working in construction field.kindly help me out

13. Chris Dodds
May 28, 2014

IEC 61914 covers the electrical engineering calculation for the correct selection and specification of cable cleats to retain power cables in the event of a short-circuit http://www.cablejoints.co.uk/blog/article/iec61914-cable-cleats-ellis-patents

14. KUMAR
Dec 03, 2013

its not setisfied i need full calculation of short ckt current….

Aug 18, 2013

Can you please send me a format for calculating Isc for a panel fed from generator. (e.g. 2.75MVA CAT Genset feeds to a Panel of 4000A, 415V, 4C armored cables).

Best regards,

16. MILIND TAMBAT
Mar 21, 2013

I am not able to free down load free EL. ENG. Technical articles.
Thanks

• Edvard
Mar 21, 2013

Best regards,
Edvard

17. Allen
Jan 05, 2013

Could you please develop the Excel calculation sheet for sizing of Soft Starter with the curve appearance.

• Edvard
Jan 05, 2013

EEP is not the developer of any MS Excel Spreadsheet here. All spreadsheets are developed by engineers who wanted to share their entusiasm and knowledge with everybody.

18. fayinminu tosin
Feb 01, 2012

Hello, could you please solve the short circuit problem manually using point to point calculation. A better explanation on how you arrived at your answer would also be appreciated. Kindly send your reply to: tosin.fayinminu@deltaafrik.com or fayinminutosin@yahoo.com.

• One 480V motor feeder, 100HP, 100m length, for both underground installation and offshore installation in cable trays. Assume MCC is fed from switchgear, on the secondary of a 750kVA transformer, 4160-480V. The check for Voltage drop should be for running and starting conditions
• One feeder cable to a Power Panel, 480V, 100kVA, 200 m distance
• One 250 HP, 4.16kV motor, 100m length for both underground and cable tray installation. Assume 4.16kV MCC is fed from 4.16kV switchgear having a short circuit rating of 200MVA, the feeder length is 50Ft.
• One remote 4.16kV-480V transformer feeder, 200m length, 500kVA.
• One line diagram for the system (4.16kV and 480V) shall also be prepared.
• Primary short circuit calculation (using reactance and resistances in ohms, not p.u.)
• Assume the generation is with 2+1 1250kVA, 4.16 kV Solar Saturn 20 gas turbine generators (sub transient reactance is 12.5%).

19. jbuda54
Jan 03, 2012

Do you have an AWG cable size equivalent excel file?

20. Edvard
Dec 15, 2011

I have sent you all an email with this tool. Hope it will help!

Cheers

21. GP
Dec 14, 2011

Please can you forward Short Circuit Current Calculation at Various Point of Electrical Circuits (Isc) excel sheet to me on my email address- gavin.power@kineticengineers.co.uk

Thanks

22. Simon
Dec 14, 2011

Hi Edvard,

Simon.

23. Sairaj
Dec 07, 2011

Sir,
Kindly send the excel tool for SC calculation as I am unable to download. My id: b.sairaj11@gmail.com.. Thanks in advance..

24. RamaRaju
Dec 06, 2011

Dear Edvard,
Request you to send me a copy of the excel file for Short CKT Calcs as I am unable to download from the link.
My mail id: dvnsramaraju@gmail.com
Thanks & Regards,
Raju

25. Marcus
Dec 04, 2011

Dear Sir, will you be able to send me a copy of the excel file? I am having trouble downloading it too. thanks heaps for your great work. marcussun0218@gmail.com

26. Brkn
Dec 02, 2011

Dear Edvard,
Can you send to my e.mail too.
My e.mail is: bisimsek@yahoo.com
Thanks.

27. S P Gupta
Nov 29, 2011

Please send the software for calculation of short circuit as it is not getting down-loaded. Thanks

• Edvard
Nov 29, 2011

I just checked and MS Excel tool is working very well, it’s downloadable. However, it’s my pleasure to se send it to you!

BR

Nov 28, 2011

sir, this short ckt. sheet is not getting downloaded on my system due to some network problem.so please send the Short Circuit Current Calculation at Various Point of Electrical Circuits (Isc) excel sheet me on my email address- ahmadgce04@yahoo.com. i will be very much thankfull for your kind support.

• Edvard
Nov 28, 2011

No problem at all Ahmadgce04! I just sent you above mentioned XLS tool on your email.

BR