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How can I calculate a discharge current for a car (truck) which is located underneath of a transmission line(230 kV)?

To etablish an equipotential zone, a ground mat should be installed under the operation area of equipment and then connctect the mat to main grid. My question is that where the mat should be installed on the surface of the soil or below the sufrface of the soil. What are the difference between...

How far do we need to model the distribution lines in Malz, Hifreq module of CDEGS software? What is base for end points in the distrbution lines when we model?

Is it ok to modify the soil layered structure model data(soil resistivity measurment model)to obtain agreement with Fall-of-Potential(FOP)measuements?

In terms of safty analysis, what is the worst case soil model(the soil model can be more than two layers) for substation grounding?

I am looking for the actual 12 kV (Star) ground fault current flowing into a grounding system using FCDIST module of CDEGS. What I have is SLG 6025 A at LV distribution side (12 kV) and 2382 A at HV side (66 kV Delta ). The distribution side has three phases and a single neutral cable. HV...

What is the procedure for calculating the maximum short circuit current for bonding cable of 600 V 3/0 AWG power cable,type Teck 90?

I would be very grateful for one sending to me the reason for "why the short circuit ratio of Generating units should not be less than 0.5 as a connection condition." and, may be something regarding the technical aspects of subject.

We know generally, soil that has settled become more compact has a greater conductivity. My question is that when soil is freezing do we assume the freezing soil as uniform soil and then its resisitivity as function of tempreature? Do we consider parameteres such as moisture, chemical content...

What do you suggest to design for grounding of Supply Well Pumps that are located outside of current safety fence of a station? 1) Use Isolated Transformer? 2) Design a ground math (Seems to take care of potential rise for the small area around the supply Well Pumps) 3) Extend the available...

What type of cable do you suggest with the following technical specification? Application: 600V power Cable 3 single conductors(3*1C one coductor for each phase) ---------------------------------------------------- Cover the follwing standards: CSA-C22.2 No. 230 Tray Cables CSA-C22.1...

What criteria do I need to consider to order a typical 600V power distribution panel for battery chargers? The panel is supplied from a power center through a 280A circuit breaker. The 600V power distributionpanel is supplied through three phases without any ground cable. It is suppose to...

Dear members, After having a multilayer soil model assume we want to analyze ground impedance, GRP, touch voltage and step voltage for a large ground grids(lets say 1000 m * 1000 m), are the following assumptions the only ones we need or are there any other assumptions? 1- All conductors...

What is q in Equation (24) page 21( the potential at any point (r,z) using cylindrical coordinates? V(r,z)=((I*Roh(s))/(4*pi*b))*inverse(sin((2*b)/(sqrt((r-b)^2+z^q)+sqrt((r+b)^2+z^2))) Shouldn't be 2 rather than q?