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Article #404Re: UPS Information Needed
From: robert.connaghan
Date: Tue, 21 Nov 1989 18:01
Date: Tue, 21 Nov 1989 18:01
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1248 bytes
AT&T makes a series of UPS's with zero crossover time. They come in 1, 3, 5, and 10 KVA flavors. Call 1-800-372-2447 for more info. They filter and regulate the incomming AC to your load, provide surge protection, and have no minimum load. The battery backup system runs in parallel to this in stand-by mode until the AC input is gone or just out of spec (brown-out) and then the battery provides power to a DC-to-AC converter that is switched in "transparently to the load" (I'm reading from the brochure). They can be upgraded with additonal batteries. 1KVA with internal batteries, 10 Min, 60 min with external batteries. 3KVA with internal batteries, 12 Min at full load. Robert Connaghan AT&T Bell Labs Holmdel, NJ 201-949-1048 vax135!rbc
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Path: arc1-ca.pugleaf.net!utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!cs.utexas.edu!usc!apple!uokmax!occrsh!att!cbnewsh!rbc From: rbc@cbnewsh.ATT.COM (robert.connaghan) Newsgroups: comp.periphs,sci.electronics Subject: Re: UPS Information Needed Message-ID: <5990@cbnewsh.ATT.COM> Date: 21 Nov 89 18:01:18 GMT References: <1989Nov17.140437.13421@null.uucp> Reply-To: rbc@cbnewsh.ATT.COM (robert.connaghan,ho,) Distribution: usa Organization: AT&T Bell Laboratories Lines: 23