DC UPS configured as intrinsic power transfer switch

Details DC UPS configured as intrinsic power transfer switch DC UPS configured as intrinsic power transfer switch

2010-11-04

2011-10-18

Barnie, Rexford (Department: 2836)

Electrical transmission or interconnection systems

Plural supply circuits or sources

Substitute or emergency source

Reexamination Certificate

active

08039990

ABSTRACT:
Methods of manufacturing a direct current (DC) uninterruptible power supply (UPS) configured as an intrinsic power transfer switch are provided. One method includes providing multiple inputs, multiple rectifiers coupled to the inputs, a common node coupled to the rectifiers, and at least one DC output coupled to the common node. The DC output(s) is/are adapted for connection to at least one electrical load and a first input is adapted for connection to a first electrical service. A second input is adapted for connection to a second electrical service, the DC UPS continuing to supply power to the at least one electrical load in the event of a loss of either the first or second electrical services. Also provided are methods of manufacturing an intrinsic power transfer switch for a high-power electrical load requiring at least two electrical service inputs.

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