I've actually thought about the "sponsorship" idea.... jokingly mentioned it to one vendor...not much response.
Article 455 on page 70-298 - 299 ....I'm very familiar with it.
Our normal vendor, Siemens, does make a Sentron Series MDP and main breaker in a two pole configuration the...
jbartos,
The normal service we would install is a 400 amp 480v 3 Phase 4 wire system. Depending on the utility procedures they at times use a split neutral stepdown. We then would normally run a 75 KVA stepdown to supply 208/120.
Coverter reliabilty was a question we posed. I've found the...
BJC,
We will be using a VFD on the vacuum pump system. ABB ACS 600 series. I looked at VFD's for other applications but the cost are prohibitive. It would be more cost effective to convert to single phase. ie fans, garage door openers.
busbar,
It seems that the utility company is, at this point, unlikely to offer any cost sharing solution. Aside from the deregulation issue there are some politics involved. These farms are far from popular and this particular utility company has not been very helpful as a result. There was...
I help design and build large Dairy Farms. Normally we use a 480 volt 3 Phase 4 wire system with a 400 amp Main. We've recently discovered that the utility company on one of our sites wants $130,000 to bring 3 Phase to the site. This is 3 times our normal expense and makes the use of 3 Phase...
