Large-Scale installation Single-Line Electrical diagram

[Apellidos]

Apellidos

Here is my best advice to you or anyone. To be successful is not easy, it requires you to be self-disciplined, responsible, passionate, and tireless. But there is the secret. It does not matter what you do for a living. Whatever you choose it must be something you are extremely passionate about and enjoy doing 6 days a week, 12 hours a day. You would do it even if you are not paid.

Yes, the key is to be passionate about your work, since we are going to spent 30% of our life on it. But just a few people achieve that.

Thanks to those who shared their experience.

I am not as young as you think, my last twenties, and I feel the rush to settle definetely in a specific engineering field. My little experience is in HVAC installations, however the energy engineering is what fascinates me. Without experience in this field is tought to get in, I got hired in this company recently and I tougth that it was a great opportunity for me, because they match sustainable opportunities with technology suppliers. But if I don't have direct contact with the technology suppliers (workshops, training...) my learning is going to be a path of stones.

[J.P.M.]

Apellidos I am glad you got the message we are expressing. Solar Power Technology is no different from any other engineering discipline, you cannot just be thrown into it and expect results. If you are young just recently out of school, you have only taken the first step in your education. You have only qualified to move on to the phase and it never ends, learning how to actually do something.School just gave you the tools you need to learn and understand what is ahead of you. You do not come out of school and build a power plant. For the first 3 to 5 years you are a Goffer. That means doing all the stuff your mentors hate like calculations, material list, drawings. Once you show ability and passion, then you will be assinged specific project task once your mentors are confident in your ability. Learn how to be a bit of a PIA sticking your nose into what your peers are doing and why they do it that way.

There are no books to walk you thru a design process. Every design is unique.

Here is my best advice to you or anyone. To be successful is not easy, it requires you to be self-disciplined, responsible, passionate, and tireless. But there is the secret. It does not matter what you do for a living. Whatever you choose it must be something you are extremely passionate about and enjoy doing 6 days a week, 12 hours a day. You would do it even if you are not paid.

My dad once told me: "The difference between a Poor Man and Rich Man is a Poor Man plans how to spend his paycheck on the weekend, and a Rich Man plans for children's retirement".

FWIW, S.K. & I seem to have had similar experiences in different engineering disciplines, which surprises me not at all. I'd only add - as S.K. may well be implying - pursue professional registration and licensure ( A "P.E." license). You will not regret it.

[Sunking]

Apellidos I am glad you got the message we are expressing. Solar Power Technology is no different from any other engineering discipline, you cannot just be thrown into it and expect results. If you are young just recently out of school, you have only taken the first step in your education. You have only qualified to move on to the phase and it never ends, learning how to actually do something.School just gave you the tools you need to learn and understand what is ahead of you. You do not come out of school and build a power plant. For the first 3 to 5 years you are a Goffer. That means doing all the stuff your mentors hate like calculations, material list, drawings. Once you show ability and passion, then you will be assinged specific project task once your mentors are confident in your ability. Learn how to be a bit of a PIA sticking your nose into what your peers are doing and why they do it that way.

There are no books to walk you thru a design process. Every design is unique.

Here is my best advice to you or anyone. To be successful is not easy, it requires you to be self-disciplined, responsible, passionate, and tireless. But there is the secret. It does not matter what you do for a living. Whatever you choose it must be something you are extremely passionate about and enjoy doing 6 days a week, 12 hours a day. You would do it even if you are not paid.

My dad once told me: "The difference between a Poor Man and Rich Man is a Poor Man plans how to spend his paycheck on the weekend, and a Rich Man plans for children's retirement".

[Sunking]

As for regrets about what sounds like a bad choice you might have made: Own the error, learn from it, don't repeat the same mistakes that got you there, and move on.

+1 JPM. Owning your own problems and taking responsibility are values lost in the USA. It is some one else fault, I am just a victim, so give me money and respect.

[J.P.M.]

I comprehend what you said and I totally agree with your second paragraph, and it is the reason why I am questioning my continuity in this company where I just can learn by my own, because there are no technical experienced employees, When I asked about books or courses, it is because I need foundations and it is not easy to find information about large-scale plants, maybe a should focus directly in electricity.

I don't regret about my initial post, But they shouldn't fire me, I should quit.

Good choice on seeking a better future in a different venue, especially when (I'm assuming) you're young. I suspect many folks have a poor company choice in their past. I did. Welcome to the club.

As for regrets about what sounds like a bad choice you might have made: Own the error, learn from it, don't repeat the same mistakes that got you there, and move on.

Get your basic engineering principles and knowledge down cold and firm (if engineering is your choice). Then, as you begin a working career, pick good mentors, listen, observe and learn from them and others, and start to get a real education while starting to contribute.

If you stay curious, passionate and persistent about your profession, and absolutely driven to get it safe and right, you'll be fine. If so, someday, you'll be able to pay it forward.

Good luck.

[inetdog]

Howdy Apellidos, I think you need to hire a company that can do the job, I am available to do the consultancy work

Spammer!

[solar pete]

Howdy Apellidos, I think you need to hire a company that can do the job, I am available to do the consultancy work

[Apellidos]

You are using toys made for consumers. Commercial and Industrial Inverters range in size from 10KW to 10MW, all custom built for the application.

Based on your responses and terminology, it is very clear neither you or your company has any experience. That is not an Insult, that is a FACT. You have not offended us, you have entertained us with your ignorance. At most If anything you scare us. .

There are no books to read or videos to watch. This is not an off the shelf plug-n-pray application. It takes years of experience under direct supervision of experienced engineers who have done it for 10 or more years. Just like heart surgery, there are no How-To books or videos. Just like colege, when you graduate, you are not qualified to do anything and most of what you were taught is just academic and has no application. School just gives you the tools you need to learn a profession on your own. If you fail, then you teach or go into politics.

I comprehend what you said and I totally agree with your second paragraph, and it is the reason why I am questioning my continuity in this company where I just can learn by my own, because there are no technical experienced employees, When I asked about books or courses, it is because I need foundations and it is not easy to find information about large-scale plants, maybe a should focus directly in electricity.

I don't regret about my initial post, But they shouldn't fire me, I should quit.

[Sunking]

Then, the person who is directly insulting me. I would ask him please why it would be enough with three inverters?

You are using toys made for consumers. Commercial and Industrial Inverters range in size from 10KW to 10MW, all custom built for the application.

Based on your responses and terminology, it is very clear neither you or your company has any experience. That is not an Insult, that is a FACT. You have not offended us, you have entertained us with your ignorance. At most If anything you scare us. .

There are no books to read or videos to watch. This is not an off the shelf plug-n-pray application. It takes years of experience under direct supervision of experienced engineers who have done it for 10 or more years. Just like heart surgery, there are no How-To books or videos. Just like colege, when you graduate, you are not qualified to do anything and most of what you were taught is just academic and has no application. School just gives you the tools you need to learn a profession on your own. If you fail, then you teach or go into politics.

[J.P.M.]

Sorry again, it was not my intention to offend your collective and I respect and agree all reviews, except the one who suggested my boss to fire me, when actually would be his fault to assign me this task, I tryed to do my best, but better stop before I am wasting more time and learn for the next time.

I suppose a valid case could be made for replacing your boss as well. Maybe the whole operation needs an enema.

[Apellidos]

If anyone could recommend me a book or online course that can really help me I would much appreciate it.

I just would like to add, that in developing countries I see other !MW projects with 20kW inverters, and for this specific case they are forcing us to reject central inverters. For your peace of mind, I already informed my boss about the lack of knowledge in this field of all employees, the company has a design made by a solar module provider, and they just want to have an alternative design. I got it, better subcontract someone, but I would like to learn about it.

Sorry again, it was not my intention to offend your collective and I respect and agree all reviews, except the one who suggested my boss to fire me, when actually would be his fault to assign me this task, I tryed to do my best, but better stop before I am wasting more time and learn for the next time.

[Apellidos]

I just can say I am sorry for the people who is offended. This is not my field and I am trying to learn by myself, I got a job because of other skills, but this is small company and they assigned to me the previous design of the plant, I am researching about the electrical connections because I am interested on it.
I recognise such a project can't be carry out for an unexperienced guy like me, I just trying to learn and that was my idea when I registred in this forum.

I see how far I am for doing something positive, I will search for a good book for large.scale plants and go deep in it the following days.

[Eleceng1979]

This has to be the funniest thing I have ever seen on here... vmppt voltage ratings on a transformer...50 inverters... 25ka breakers downstream of 1mva transformer with no switchgear or protection... Searching google is NOT engineering. You obviously lied on your resume/cv. Where do you work? I might apply as they will need someone to complete your project.

[foo1bar]

Is "Vmppt" typically used for the AC voltage?
I wouldn't think so.
and it's labeled 230V instead of 480V (I'm guessing it would be 480V or maybe higher for this large of a system)

The plant has to generate 1 MW and we are forced to use 20 kW inverters due to the location and maintanence issues. With three inverters the plant wouldn't produce enough power

I would think maintenance would be better to have fewer but larger inverters. If it's three 333kW inverters or fifty 20kW inverters I would think you get the same power output And I would guess cheaper to go with fewer larger inverters since some of the overhead items eliminated. (ex. the case for a single inverter would be bigger, but there would be less metal needed for the bigger one because it wouldn't take as much space as all the smaller ones. )

[Mike90250]

Schneider Electric hides this stuff, but they have inverters from 6Kw wall boxes to Megawatt trailers.
http://solar.schneider-electric.com/...v-power-plant/ and one line sketches