Forum Title: se2 Phase
Had my first dealings with 2 phase. Was disconnecting a machine and wanting make sure all the leads are identified, I started going over everything. At first I thought the 4 pole disconnect may have had a nutreal being disconnected. But wait there is no 110v on this machine. readings to ground were all over, and there was 2 sets of 240v. Aaaa wow! 2 phase. I thought it was a urban legend! Sure as could be a 3 phase to 2 phase 50kw trans. What I have learned to be a Scot Trans. comments welcome:) Ob
Category: General Electrical Discussion Post By: Dean Santos (Carbon Hill, OH), 03/23/2017
The only and last place I saw 2 phas was in Philadelphia, many, many years ago. Working with one of the 'old timers', and I don't remember much of it today.

- Dave Irvin (Perry, IN), 03/25/2017

John, The strangest voltage system I ever saw was in Jersey City. There were 3 phase legs going to a machine. You got 240 volts between each phase leg. On 2 of the phase legs you got 120 volt and on the third leg you got zero voltage to ground. There was no neutral for these machines. I was told that it was a very old style system.

- Feder Mechanical Service Llc (Howard, OH), 03/25/2017

I thought that true 2 phase was there were 2 phase legs and 2 neutrals. 1 neutral for each phase leg.

- Jacob Greene (Downsville, MD), 03/25/2017

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