Earthing System for HV Sub-Station 132kV

Yes!

Solidly earthed with a very low impedance connection.

Seriously, consult your local codes and regulations!!!!!!!!!

We don't even know where you are. We hope you do and can do proper research instead of asking unknown strangers.

Surely the organisation has a procedure to follow that determines this? Ye gods...

I have a love/hate conundrum with these types of questions that makes me uncertain how to answer them. If one fully understood what one actually asked in this type of a question they would understand that not enough information has been provided to answer such a question. On the other hand if one does not understand what they asking. then they are "poking their nose where it doesn't belong" and neither don't deserve nor will likely understand a concise answer. My, personal conundrum comes into play here because I don't believe either extreme case prompted this question. I therefore don't know which is closer to the truth nor how to answer in a useful manor.

What does the type of house have to do with it?

Perhaps knowing that would help one be a more effective tudor?

A person is not superior in any way just because they have more than one automobile.

<...A person...they have...>

Grammar Alarm - Arrrrrrrooooooooooooooooooooooooooooooooooogah!

Take one ER Penalty Point. Must try harder.

The only way I know to earth a tudor coupe is with conductive tires.

First off I'm not your friend

The safest busbars are dead and solidly connected to earth/ground. Unfortunately they don't transfer any useful power.

Explain what you want to know giving some criteria.

Ask for training.

See: NEC [NFPA 70] art. 250;IEEE 142 [Green Book];IEEE 80/2000;IEC 60364-5-54;BS 7430;DIN-VDE 0141;IS 3043;and other.

From IEEE-665/1995:

"The purpose of grounding the neutral is threefold: to limit the fault current flow during phase-to-ground faults, to allow for application of protective relaying to detect these faults, and to limit the transient and temporary overvoltages that may be caused by ground faults on the generator system.

Eight methods of grounding are identified by IEEE Std C37.101-1993:

1. High Resistance Grounded (Distribution-Transformer Grounded)
2. High Resistance Grounded (Neutral-Resistor Grounded)
3. Low Resistance Grounded (Neutral-Resistor Grounded)
4. Low Inductance Grounded (Neutral-Reactor Grounded)
5. Resonant Grounded (Ground Fault Neutralizer Grounded)
6. High Resistance Grounding -Transformer Grounded
7. Medium Resistance Grounding-Transformer Grounded
8. UngroundedFor each case, the unit arrangement(s) and the reason for using this method will be given. Advantages and disadvantages of each method are presented in IEEE Std C37.101-1993.IEEE Std C62.92-1987 provides means of estimating, by symmetrical component impedance ratios, the transient and temporary overvoltages that may occur on generator systems having various electrical characteristic classes."

As you can see, you cannot treat seriously any answer. Take it as a Facebook thread where merely has to be funny to be appreciate. The colleagues are interested to hear their own voice not yours.

Let's return to your problem.

First of all something is confusing me:

You are speaking about equipment grounding or system grounding?

I am familiar only with 110 to 400 kV European Systems. There the high voltage System is-technically speaking-solid grounded. I think the resistance grounding is very expensive.

The grid manager will calculate the short-circuit current in any point of the grid and will decide if one transformer neutral will be solid grounded or ungrounded. A grounding isolator is provided and a surge protector is connected with the transformer neutral when this will be ungrounded.

If we are speaking about equipment grounding it has to be connected directly to the grounding grid-no resistance inserted.