Contact assembly of circuit breaker
AssigneeGeneral Electric Company
InventorsYatin Vilas Newase, Janakiraman Narayanan, Pankaj Agrawal, Soundararajan Narayanasamy, Mahesh Jaywant Rane
Life of this patent
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Abstract
A contact arm assembly including a plurality of substantially parallel plates having a space between each of the plurality of substantially parallel plates and a plurality of finger assemblies, at least one of the plurality of finger assemblies being pivotally attached to the plurality of substantially parallel plates and being located in the space between each of the plurality of substantially parallel plates, each of the plurality of finger assemblies having a body and an arc runner, the arc runner being locked against the body in at least two locations.
Claims17
A contact arm assembly comprising:
- a plurality of substantially parallel plates having a space between each of the plurality of substantially parallel plates;
- and
- a plurality of finger assemblies, at least one of the plurality of finger assemblies being pivotally attached to the plurality of substantially parallel plates and being located in the space between each of the plurality of substantially parallel plates, each of the plurality of finger assemblies having a body and an arc runner the arc runner being locked against the body in at least two locations;
- a bracket having a flat surface with slots at predetermined intervals, each of the substantially parallel plates having at least one extension configured to interface with corresponding ones of the slots such that the flat surface is substantially perpendicular to the plurality of substantially parallel plates, the bracket being configured to partially enclose the space between the substantially parallel plates for housing at least one of the plurality of finger assemblies.
A contact arm assembly comprising:
- a cage bracket having a substantially flat surface and two extensions forming extension plates extending therefrom, the extension plates being substantially parallel to each other, the cage bracket and extension plates substantially forming a U-shape;
- a plurality of plates located between and substantially parallel to the extension plates, the plurality of plates having a space therebetween;
- and
- a plurality of finger assemblies, at least one of the plurality of finger assemblies being pivotally attached to the plurality of plates and being located in the space between each of the plates wherein:
- each of the plurality of finger assemblies includes a body and an arc runner, the arc runner interface surface includes at least two orthogonally spaced apart recesses;
- and
- the body interface surface includes at least two orthogonally spaced apart protrusions corresponding to the at least two orthogonally spaced apart recesses, the at least two orthogonally spaced apart protrusions being configured to engage the at least two orthogonally spaced apart recesses for minimizing relative movement between the body and arc runner.
A contact arm assembly comprising:
- a plurality of substantially parallel plates having a space between each of the plurality of substantially parallel plates;
- and
- a plurality of finger assemblies, at least one of the plurality of finger assemblies being pivotally attached to the plurality of substantially parallel plates and being located in the space between each of the plurality of substantially parallel plates, each of the plurality of finger assemblies having a body and an arc runner, the arc runner of at least one of the plurality of finger assemblies being advanced with respect to arc runners of other different finger assemblies of the plurality of finger assemblies.
Dependencies are inferred from the claim text.