Extra High Voltage substation grounding|grounding calculation|Touch voltage|Step Voltage|GPR 

Good upcoming video awaited

awesome ... fantastic

Thanks for sharing your valuable knowledge, you have explained the complicated concept very easily. GOD bless you.

Probably the best video i came across so far regarding concept of step and touch voltages... Lovely Explanation... Subscribed to your channel....eagerly waiting for part 2

Thank you for sharing this knowledge...

Perfect explanation diagrams

good work!

Good

Great video and very well explained in a short time, not making it boring at all. The only thing I have a comment and felt there was a mistake was the current equations shown in the figure at 3:21. The thing you have done is that ground fault current is divided in each tower, and flows up to be added in each overhead earthwire (OHEW) span, and the final I = I1+I2+I3. This means the OHEW span farthest from the fault span has the maximum fault current. But its just opposite of that. IEEE 367 states that "Near the fault, overhead ground wire may carry up to 80% of the fault current, which is then gradually dissipated into the earth at each successive tower or pole." So actually, the earthwire fault current gets divided into the earth in every tower and ground portion of the fault current gets added up as they flow to the remote substation. The first overhead earth wire section will bear the most current and will decrease down the transmission line section far from the fault. This is very well explained in the book "Power System Modelling and Fault Analysis, Theory and Practice" by Prof. Dr. Nasser Tleis, chapter 11th for the second edition.

Bro you are too good...

Thanks....

Hello sir, Great explanation. Please share the calculation example also.

thank you so much for sharing valuable information....i request you to please upload design calculation part as you said in video...

Thanks for the video. Please explain 1 calculation with an example.

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WHAT EXACTLY IAM LOOKING FOR INFORMATION I GOT IT SIR. WELL DONE . HOPE U DO MORE VIDEOS LIKE DISTANCE PROTECTION AND CARRIER SCHEMES

Thank you sir.. I have two questions.. 1. Why all fault current return from transformer neutral 2. If transformer is delta-delta then how fault current behave

Part 2 pls upload

is there any other video for calculating GPR and Grounding? Can you pls share the link?

Where can I found part 2 of this video

I often looked up at this shield wire wondering what it is. A single wire above 3 phase.

Excellent Video but Current I and I4 distributed in ground grid instead flow in X'Mer netural as the current flow in low resistive path i.e ground grid may right or wrong sir

Sir, I have one question, Why is plant grounding not based on step and touch voltage calculations? Why just substations/switchyards(IEEE-80)?

can someone pls share link to part 2 of this video

Sir which voltage is more dangerous touch or step?

Our 15/110 KV step up transformer input cables screen shield is connected to main earthing system . Day before we have measured by current multi meter and found that 20 Amp current flowing from earthing cable . i know for the induction some amount of the current should flow from earthing system but i don`t know how much is acceptable . If you know any legal information please let me know.Thanks for advance

Can't find the 2nd part

Where is part 2 for calculation??

waiting for your videos sir. specific topics are DISTANCE PROTECTION , BUS BAR PROTECTION CENTRAILISED AND DECENTRALISED SCHEMES,

Hey, would you be able to please provide me with your contact info. It would be much appreciated if we can chat over whatsapp as this topic has bothered me for a long time and hoping you can help me solidify my understanding.