Automatic transfer switch system with synchronization control

Details Automatic transfer switch system with synchronization control Automatic transfer switch system with synchronization control

2005-12-27

2005-12-27

Nghiem, Michael (Department: 2863)

Data processing: measuring, calibrating, or testing

Measurement system in a specific environment

Electrical signal parameter measurement system

C324S096000

Reexamination Certificate

active

06980911

ABSTRACT:
An automatic transfer switch (ATS) system and method of operating an ATS system to switch between first and second powers received from respective first and second power supplies, are disclosed. In one embodiment, the method includes sensing a first phase associated with the first power and a second phase associated with the second power, and determining whether the first and second phases have failed to become synchronized within a first time period. The method further includes providing a control signal at a second output port when it is determined that the first and second phases have failed to become synchronized within the time period, determining that the first and second phases have become synchronized in response to the control signal, and switching between the first and second powers once it is determined that the first and second phases have become synchronized.

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