Earth Grounding - Actual Touch Voltage
Earth Grounding - Actual Touch Voltage
(OP)
Hi,
I've been working on the sizing of the Earth Grounding of a Substation. To do so, I need to calculate the permissible touch and step voltages.
I know IEE Std. 80-2000 teaches how to calculate these values. However, would someone happen to know how I can calculate the actual touch and step voltages that will occur throughout the earth ground during a short-circuit? Is there any standard or book that talks about the equations?
Currently I'm using a software called 'TecAt Plus' to calculate these voltages. But the software has a poor interface and sometimes doesn't work well. I was thinking that maybe I could make these calculations myself using MATLAB.
Thank you in advance.
I've been working on the sizing of the Earth Grounding of a Substation. To do so, I need to calculate the permissible touch and step voltages.
I know IEE Std. 80-2000 teaches how to calculate these values. However, would someone happen to know how I can calculate the actual touch and step voltages that will occur throughout the earth ground during a short-circuit? Is there any standard or book that talks about the equations?
Currently I'm using a software called 'TecAt Plus' to calculate these voltages. But the software has a poor interface and sometimes doesn't work well. I was thinking that maybe I could make these calculations myself using MATLAB.
Thank you in advance.






RE: Earth Grounding - Actual Touch Voltage
RE: Earth Grounding - Actual Touch Voltage
http://www.poweranalytics.com/designbase/pdf/Groun....
But, I think, taking into consideration the reduced accuracy of grounding resistivity measuring - and change of the grounding resistance with weather, metallic and reinforcing concrete embedded in the grounding area and other-the IEEE-80/2000 in two layer grounding strata method , it is accurate enough.