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# Calculation of Touch Voltage and Ground Current

## 3-phase systems and 1-phase

Calculation of touch voltage and ground current can be performed on single-phase or three-phase systems.

According to the inputs for the three-phase system:

Line-to-Neutral Volts (Vn), Line 1 Calculated Load (A1), Line 2 Calculated Load (A2), Line 3 Calculated Load (A3), Service Neutral Impedance Z1, and Ground Resistance (3-point method) R, the spreadsheet will calculate the following parameters:

1. The resistance of Each Phase
2. The resistance of neutral/Ground
4. Touch Voltage for the Metal part to Earth
5. Body Resistance and Body Current

For single-phase, systems input parameters are: Circuit voltage and ampere, load, ground, electrode, and body resistance.

 Software: Calculation of Touch Voltage and Ground Current Version: 22.08.2012 Developer: Jignesh Parmar Size: 99 Kb Price: Free Download: Right here | Video Courses | Membership | Download Updates

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1. [email protected]
May 17, 2023

Am I able to free download or subscribe the excel sheet for step and touch voltage and ground current calculations as the excel sheet shown above.

2. Haytham Alloush
Oct 30, 2021

Hi
Please advise if the step & touch voltage and GPR should be calculated for LV systems as street lighting poles ,or step and touch voltage is required to be calculated Ac substations /HV as per IEEE 80 ?

3. zayed
Jul 11, 2021

why Ground Potential Rise for 24VDC solar system minimal?

4. JAMES K TETTEH
Mar 10, 2021

I am an electrical engineer and Iβd like to express my great thanks to managers of this web site and its all writers. Meanwhile, I want to add one general comment. Normally in spreed sheets, the american units (mile, foot square, AWG andβ¦) are being used. Please develop equivalent METRIC sheets too.

Regards:

5. Enkali jafet Nyanyukweni
Sep 07, 2019

I am struggling to calculate volt drop on three phase , touch volt I need a help

6. Gafar jimoh tosin
Aug 31, 2019

The touch calculation is very useful, thanks.

7. Gafar jimoh tosin
Aug 31, 2019

The touch calculation is very useful, thanks

8. Vilas Pathak
Aug 31, 2019

Aug 31, 2019

Thanks for enrolling me . It is really useful website

10. Carlos
Nov 25, 2018

I’m a Relay Technician and I’m fascinated by all this kind of technical information. Thank you very much!!

11. David Bridglal
Jul 18, 2018

Put in Constant Voltage Transformers.

12. Khaled Ellithy
Jan 25, 2018

Excellent

13. Er DEBASISH PATTANAIK
Dec 26, 2014

Dear Friends,
Recently we have installed a 500kwp solar power plant in our state .It is a on grid system,about 25 nos of solar inverters have been installed in a area of around 1.5 km radius in different building.Here we found that the 20 kwp inverters at last building is developing over and under voltage and going failure.So pls anybody suggest what could be the reason for this and available solution.Thanks

• Harnam Trehin
Jun 09, 2015

Please send me your single line and distances of each inverter from each other and from the load centre. Also please tell me what is the switching frequency of your IGBTs. Log onto our website we can help you if you still have the problem with the last inverter.

Thanks,

14. saeid
Feb 22, 2014

in the name of god

tnx a lot