Eaton Intelligent Power Limited

Eaton Corporation

Robert Charles Sebald

George Arthur Navarro

Gavin Girish Saldanha

Robert William Johnson, Jr

Pasi Sakari Taimela

Yu Liu

Bobby Leonard Compton

An uninterruptible power supply (UPS) system includes a first port configured to be coupled to an AC power source and a second port configured to be coupled to a load. The system also includes a UPS circuit including a first converter circuit coupled to the first port, a second converter circuit coupled to the second port and a DC bus coupling the first converter circuit to the second converter circuit and configured to be coupled to an auxiliary power source and a third converter circuit coupled to the second port and configured to receive power from a variably available power source. The system further includes a control circuit operatively associated with the UPS circuit and the third converter circuit and configured to cooperatively control the UPS circuit and the third converter circuit to selectively transfer power to the load from the AC power source and the variably available power source and from the variably available power source to the AC power source.

Uninterruptible power supply systems and methods using isolated interface for variably available power source

A method of operating an Uninterruptible Power Supply (UPS) system can be provided by activating an idle state for a UPS module included in the UPS system and providing a UPS module test input to the UPS module in the idle state. A UPS module test response can be provided from the UPS module in the idle state, to the UPS module test input. The UPS module test response can be compared to a predetermined UPS module test response and the UPS module can be identified as a potentially faulty UPS module responsive to determining that the UPS module test response varies from the predetermined UPS module test response by more than a threshold value.

Uninterruptible power supply (UPS) modules for testing systems

Methods of testing uninterruptible power supply (UPS) systems with multiple UPS modules

Methods of testing unInterruptible power supply (UPS) systems with multiple UPS modules

Growing community of inventors

Raleigh, NC, United States of America

Robert Charles Sebald