Current balancing for automatic transfer switches
AssigneeCummins Power Generation IP, Inc.
InventorsAmrit Supriya, Wangwei Zhou
Life of this patent
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Abstract
An automatic transfer switch includes a first phase switch component having a first plurality of cassettes, and at least one outer bus component disposed at an outer side of the first phase switch component. The automatic transfer switch additionally includes a first plate which is disposed on the outer side of the first phase switch component at a terminal end of the first phase switch component. The first plate is structured to increase impedance on an outer bus component of the first phase switch component to rebalance current along the first phase switch component.
Claims20
An automatic transfer switch comprising:
- a first phase switch component comprising a first plurality of cassettes;
- at least one outer bus component disposed at an outer side of the first phase switch component;
- and
- a first plate disposed on the outer side of the first phase switch component at a terminal end of the first phase switch component,
- wherein the first plate is structured to increase an impedance on the at least one outer bus component of the first phase switch component and decrease a temperature along the first phase switch component.
An automatic transfer switch assembly, comprising:
- a first phase switch component comprising a plurality of conductors, wherein the plurality of conductors comprises a plurality of interior conductors and a plurality of outer conductors;
- a plurality of bus conductors coupled to the first phase switch,
- wherein at least one of the plurality of outer conductors comprises a cut portion configured to increase an impedance along the first phase switch component and a first plate disposed thereon, the first plate being structured to decrease a temperature along the first phase switch component.
A method, comprising:
- arranging a first phase switch component comprising a first plurality of cassettes, the first plurality of cassettes comprising outer cassettes and interior cassettes disposed between the outer cassettes;
- disposing a first plate on a first outer conductor located at a first outer side of the first phase switch component at a first terminal end of the first phase switch component;
- and
- disposing a second plate on a second outer conductor located at a second outer side of the first phase switch component at a second terminal end of the first switch component, the first outer conductor and the second outer conductor sandwiching a plurality of interior conductors therebetween, structuring at least one of the first outer conductor, the second outer conductor or the plurality of interior conductors of the first switch component so as to increase an impedance along the first phase switch component.
Dependencies are inferred from the claim text.