High speed protection for phase balancer with zig-zag transformer

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12266937
APP PUB NO 20240154419A1
SERIAL NO

18052006

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Importance

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Abstract

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A zero-sequence current balancer for a controlling zero-sequence current in a three-phase power system includes a zig-zag transformer coupled to the three-phase power system, an inverter coupled to an output of the zig-zag transformer, and at least one of: (i) a clamp device operating as a normally open switch, the clamp device being provided in between the output of the zig-zag transformer and a neutral conductor (which may be grounded) and being connected in parallel with the inverter, and (ii) a load-break switch provided between the output end of the zig-zag transformer and an input of inverter. A controller is structured and configured to detect a fault condition in the three-phase power system, and in response cause at least one of the closing of the clamp device or the opening of the load-break switch in order to protect the system.

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Patent Owner(s)

  • SWITCHED SOURCE PB LLC

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Benavides, Nicholas D Zionsville, US 9 387
Murray, Charles J Chicago, US 3 21

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