kekrahulik
Member
just to chime into the conversation...the 100yr old plant that I previously worked at had 25 cycle (25Hz) for some old equipment and an elevator.
LadderLogic said:Actually, there is 3-phase 240V as well.
I was hoping I could limit the options to just the most popular.Ife said:in the US there are also motors with windings switchable between series or parallel with voltage ratios of 2, for example 240/480V.
We never assume anything. All details are clarified before signing the contract.jstolaruk said:Make no assumptions about grounding style/quality etc tho. Thar be dragons.
Both 600V and CSA are being considered. It is a question if it is worth the effort to make a standard, or if it shall trigger a special price if there is customer with 600V or CSA.jstolaruk said:600vac for Canada's auto industry. Obviously it will be plant specific.
OK, I think I can limit it to new plants, newer than 1970.just to chime into the conversation...the 100yr old plant that I previously worked at had 25 cycle (25Hz) for some old equipment and an elevator.
Ken Moore said:All plants built since the 70's, were 480/277(3ph)
These comments of my are just a generalization but just about anything is possible if you buy a transformer.
I've also seen 600VAC as the main low voltage equipment supply in power plants that were built in the 60s / early 70s. It was common in that industry at the time but I'm not sure why or if it continued any later than that.600vac for Canada's auto industry. Obviously it will be plant specific.