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Re: 3 Phase Power (490 volts on a 480 volt system)

acetoday #168226 08/29/07 06:05 PM

Joined: Jan 2003

Posts: 4,391

North Attleboro, MA USA

iwire

Moderator

It's very likely a 480 volt supply system and 490 volts is not that bad.

The AC unit is labeled 460 but is designed to work on 480 volt supply system.

They do not make Motors actually labeled 480 volts.

Bob Badger
Construction & Maintenance Electrician
Massachusetts

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Entire Thread
Subject	Posted By	Posted
3 Phase Power (490 volts on a 480 volt system)	acetoday	08/29/07 09:48 PM
Re: 3 Phase Power (490 volts on a 480 volt system)	iwire	08/29/07 10:05 PM
Re: 3 Phase Power (490 volts on a 480 volt system)	frenchelectrican	08/29/07 10:09 PM
Re: 3 Phase Power (490 volts on a 480 volt system)	leland	08/29/07 10:57 PM
Re: 3 Phase Power (490 volts on a 480 volt system)	acetoday	08/29/07 11:15 PM
Re: 3 Phase Power (490 volts on a 480 volt system)	iwire	08/29/07 11:39 PM
Re: 3 Phase Power (490 volts on a 480 volt system)	leland	08/29/07 11:42 PM
Re: 3 Phase Power (490 volts on a 480 volt system)	gfretwell	08/30/07 02:50 AM
Re: 3 Phase Power (490 volts on a 480 volt system)	acetoday	08/30/07 02:52 AM
Re: 3 Phase Power (490 volts on a 480 volt system)	iwire	08/30/07 09:25 AM
Re: 3 Phase Power (490 volts on a 480 volt system)	Texas_Ranger	08/30/07 01:10 PM
Re: 3 Phase Power (490 volts on a 480 volt system)	WESTUPLACE	08/30/07 02:19 PM
Re: 3 Phase Power (490 volts on a 480 volt system)	Dave T	08/31/07 02:05 AM