We had a 5kv feed and transformer in a basement as a spare and kept it energized to keep moisture out. Sump pump quit and winding blew out when water reached it. I still think it was a good idea. Mike I like your Norman story, been there done that:)
Or pull a neutral to all the units from the panel. I think there is a good chance the motors are 120 volt and a tranformer isn't feasible. It appears you meet the requirements of the NEC as tens of thousands of old laundries are in this situation but I would recommend getting a reputable...
I was hoping someone would give the specifics of the code that we are dealing with. Our chillers are litium bromide, I apologize for not stating that, but I wanted to hear the answer to the original question, not a critique of our facilities. I agree with the safety issue entirely, but it has...
There is the most important excuse-money. The second most important excuse-space. Customers don't like to part with either and unless there is a code issue. They will not accept the additional cost and space loss just because you like the idea. All of our plans and buildings are inspected by...
We have all of our boiler rooms integrated with the chiller plants and most have been designed within the last 7 years by some of the top engineering firms in the country. All applicabble codes were strictly adhered to since we have building occupancies anywhere from 3000 to 9000+ depending on...
It sounds like improper pump curve for application. Closing the discharge on a common centrifugal pump will reduce amperage, since it is not a positive displacement pump.
I would not recommend reducing suction pressure but see the minimum requirements of manufacturer. Keep prv as far from...
Itsmoked,I agree, the utility has to size its distribution system according to amperage and low P.F. costs them money. In return they charge my facilities $100K's per year for any percentage above or below unity. Yes, any. Its "Coming soon to your local provider" --start planning a strategy now.
The NEC prohibits any connection between the ground and neutral anywhere but the service entrance...with some exceptions. As DavidBeach mentioned NEC (Sec. 250.140) makes an exception for existing laundry equipment, otherwise the homeowners would have to rewire their homes when they got a new...
In my area a typical, modern, non-manufacturing facility would have a MV service at 13.2 KV this would be transformed at the main service to 480/277 volt 3phase 5 wire. This voltage is distributed to the electrical rooms where the panelboards supply the motors and large loads with 480 volt 3...
