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Hey does anyone have experience with DCS programming? I just want to learn on how to program/wire combination starter. Any book you will suggest?

David, I'm located in Arizona. Rbulsara, putting a distribution board is a good option. but we want to see if we could connect our load straight into the secondary of the transformer then connect it to a panel board for the new load. This is mainly because it will cost us lots of money if we...

I am trying to tap an additional load from a particular transformer. My co-worker told me he has done that before and that should work but I just want to have more opinions. This transformer currently feeds an MCCs (2 sets of 4-350kcmil). I want to tap its bushing to feed a panel that will feed...

also thanks DRWeig & tem1234 for your replies. you made it more clear to me. davidbeach lol at "Time for you to do some code research". I've seen the required 80% but I just wanted to know exactly what happened if you go slightly above it

I think I did not ask the questions the way I should have but Sspeare did provide. Basically, I just wanted to know what happens if you use more that 80% for standard rated. it is just out of curiosity since I haven't seen it

I dont know if this is a NEC rule, but in this company most of the MCC or Bus or Breaker are only used up to 80% of their max or ratings. For example, a 600A MCC is only used up to 480A. My question is this: 1-why do most people use it up tp 80% only? 2-What will happen if I used it up to 90%...

I've heard low voltage for under 600v, medium for higher

hey guys, quick one: How do you pick the ratio of a CT? I am working on a 480V system with 2695A.

Thanks guy for all these ideas. I think I will just go with a contractor for this. I will let you know how they will do it.

We are trying to see how many kwh this mini-sub is using. This mini-sub is feeding a small building. If it can be accurate up to 1%, this will be great. I'm located in arizona, I work for a plant. I have never used CT so I don't know how they are to be installed. I can send you the pic of the...

thanks DavidBeach, what other details do you need?

Hey guys, I have an existing mini-sub with a Kwh meter that was never wired on its secondary (480V). But now we have to wire it. Does anybbody know what kind of CT do I need for it? The mini sub is rated 2240Kva, fla 2695A 13800/480V. I will really appreciate it.

davidbeach, that bus bar you mentioned. are we going to have one in the generator and one in the switch ?

Thanks Auslee for your reply. I do have experiences in cable sizing from school and my few first weeks at work. The budget is not the main issue since the company has to implement it. The ATS will be made by GE and it's breaker should be a 500-600A I believe. But the manufacturer is taking care...

I am pretty new in this forum and also pretty new in the electrical stuff. I just got assigned a project and basically, I need to come up with a back up power for some MCC we have in here. We working on a 4160V line. We have a portable motivator (generator) and I am about to order an Automatic...