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I found a 30kVa 480 > 240 3 phase transformer for $500 should be plenty, but i'm still waiting for my electrician to stop by. Some of my larger equipment will run on 480 3 phase so that will get re-wired for that.

Well looks like we have some options to think about, both upgrades require a new service wire. If we stay with single phase we still may need a larger phase converter but we wont know until we try our loads, we also have the max combined HP the POCO wants us to run on single phase, so it seems...

yup That's what my electrician is thinking, install a new 3 phase panel then step down transformer to feed our current single phase panels.

I am not really worried about the in-rush, more to the fact that we are loading the transformer 100-150% during business hours and that they don't want us to run the new machine. So a larger service is required no matter what way we look at it. I would love to just get 400A 480v ran in so we...

haha the thought of that makes sense, its not the case. We did blow the fuse once, and they replaced it with a new fuse.

In my 40x48 "warehouse" I have 23 outlets evenly spaced, every 4 outlets have their own 20 amp beaker. But this shop area is only used for storage and a few computers were and there. The welding shop I have 4 outlets pretty much every 6-8 ft.

I have a ideal 61-744

No does not look like mine does...

Measured using a Clamp-on ammeter at the main panel between the meter. A bigger service is in our books, its just a waiting game now for Xcel as they are dragging their feet. "Hello, I want to get a bigger service so we can **** up more power so we can pay you more"... Radio Silence... haha...

Center City, Between Taylors Falls and Forest Lake Thats what I thought... With our plasma running and only one fabricator working were pulling 100-135 amps on one hot leg. With just lights on, air filtration/rotary converter (runs all day) and no other equipment besides computers etc... were...

Yea I think they are going to try and get us a larger transformer temporarily and then plan a 3 phase install. They are about 2-3 months out for new installs so well keep our fingers crossed they can get us something soon.

Well Xcel Energy came out (that was quick) and he starts to laugh at how small that transformer is and noted that it is probably already in bypass mode as we are currently drawing much more than the recommended load. So now we are in contact with the designer to see if they can get us a larger...

If all goes to plan this will be used about 3-4 hours a day, we also run our phase converter and air filtration system almost 8 hours a day. Going to 3 phase service would be ideal but I would personally like to wait until our next building happens at winch point we will need 3 phase service...

Hi all! I have a pole building that is zoned industrial and it has a 200A single phase service that they bill as residential for some reason. I looked at the pole and noticed that it is only on a 10 KVA transformer. We run a metal fabrication shop in the building. 4 welders, 5 HP air...