Sub Station

Siemens is a supplier....

http://www.energy.siemens.com/hq/en/sustainable-energy/

Try to do some research before asking your questions.

This question makes no sense.

Do your own homework.

Do you ever read what you've written before you post it? I suspect that part of the problem lies in translation from your native language, which clearly isn't English. In English, as in many other languages, each sentence ends with a period. That period indicates that the following words relate to a different idea from that of the preceding words. Without those periods (and other possible punctuation) it is impossible to know what you intended to say and/or ask.

Before submitting this and all posts, it is necessary to press the "Preview Comment" button. Once you have pressed that button, whatever you have typed is shown in the format as it will be presented to the members of the forum. At that point, you should re-read what you have written, to make sure it says what you intended.

I'm virtually certain that your recent post does not communicate the ideas you had in mind (assuming you had an idea). You should then have pressed the "Edit this Comment" button, and revised your post before proceeding.

Look, he tried but since his photo icon is sideways, the thoughts are also coming out sideways. There is a lot of slope in some parts of Somalia?

Siemens is first class recommendation in this controls arena. Check with them first.

For the sake of safety of you and other human beings, you really need to find another line of work. Your Knowledge of Electrical Engineering is a Catastrophe Waiting to Happen!! If you don't kill yourself first, you'll kill someone else, or take down the national grid.

Find another line of work that does not effect the safety of others.

The national grid in some countries could be a donkey on a turnstile wheel spinning a small generator.

OR there could be countries where there are numerous small to mid-size generating units, with a total net capacity of somewhere in the 100's of GW.

A little bit of knowledge in such instances is a very dangerous thing.

Some manufacturers of these devices are Square D (Schneider), Westinghouse, General Electric, Asea Brown Boveri (ABB), Klockner-Moller, et. al.

I'm thinking Rabaacca, et alia, as in cut off