Ken Moore
Lifetime Supporting Member
I have not seen 600 but I worked on a OLD reciprocating compressor once (IR) it was 2160? I know it was over 2000 and I think it was 2160, the cylinders were about 3 feet tall and maybe 2ft across.
It had a time delay on the start, one morning I pushed the start button and started to walk out the room, then I remembered that I need to check the oil so I hit the stop button at the same time it started up.... there was a blue fire ball that lit up the whole room
Most likely 2300 or 2700. Very common around 1910ish. I worked at a Zinc Smelter built in the late 1800's, that switched from DC to AC in 1911, they had 2700 mains, with 2300 volt motors.