I have a brand new IR compressor model 2475N7.5 with a 7.5 hp 460v 3 ph motor. is it possible to convert it to a single phase power supply? or should i just exchange it? ... I ordered it thru Northern Tool catalog
Air Tools & Compressors - Ingersoll - Rand - Rand Type - 30 Reciprocating Air Compressor - 7.5 Hp,...
Answers & Comments
When you google home made 3 phase converters, you will find many ways to make use of 220v single phase instead, however you are limited as to the hp that the motor will produce. If you spin the motor first then apply 220v, the motor will continue to turn at much reduced hp. You need full power to turn a type 30 pump depending on pulley combination/ setup. Best to return the unit and get one that will run on 220v single phase. It will most likely consume more power to do the same work however it would cost a great deal to install 3 phase. Most likely not even available at all. Many years ago, I worked at Sears and happened to see an electrician coming down from roof access of building. He told me that sears had a 3 phase generator being turned by a 220v single phase motor to run an air conditioning unit. He said that it worked quite well. Does not sound cost effective.