Apparatus and method for consolidating conductive strands of a stator coil
First Claim
1. ) An inner-cooled half coil for use in a stator phase winding of an electrical generator, the half coil comprising:
- a stack of cooling tubes;
a first stack of conductive strands adjacent a first side of the stack of cooling tubes;
a second stack of conductive strands adjacent a second side of the stack of cooling tubes; and
a header conductively bonded to each strand of the first stack of conductive strands and to each strand of the second stack of conductive strands for consolidating the first and second stacks of conductive strands.
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Accused Products
Abstract
A header (10) for use with an inner-cooled half coil (13) in a stator phase winding of an electrical generator. The half coil may include a stack of cooling tubes (16,18) with a first stack of conductive strands (20, 22, 24, 26) adjacent a first side of the stack of cooling tubes and a second stack of conductive strands (20, 22, 24, 26) adjacent a second side of the stack of cooling tubes. A header (10) is conductively bonded (92) by brazing to each strand of the first stack of conductive strands (20, 22, 24, 26) and to each strand of the second stack of conductive strands (20, 22, 24, 26) for consolidating the first and second stacks of conductive strands. A means (34, 36) for allowing a coolant to flow through the header (10) may be provided to allow coolant to flow through the stack of cooling tubes (16, 18). The means (34, 36) for allowing coolant to flow through the header (10) may include a plurality of apertures (34, 36) that are aligned with respective ones of the stack of cooling tubes (16, 18) for inspecting the cooling tubes through the apertures. Conductive connectors (54, 58) may be attached to and removed from the header without affecting the consolidation of the conductive strands.
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Citations
35 Claims
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1. ) An inner-cooled half coil for use in a stator phase winding of an electrical generator, the half coil comprising:
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a stack of cooling tubes;
a first stack of conductive strands adjacent a first side of the stack of cooling tubes;
a second stack of conductive strands adjacent a second side of the stack of cooling tubes; and
a header conductively bonded to each strand of the first stack of conductive strands and to each strand of the second stack of conductive strands for consolidating the first and second stacks of conductive strands. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. ) An inner-cooled half coil for use in a stator phase winding of an electrical generator, the half coil comprising:
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a first stack of cooling tubes;
a second stack of cooling tubes;
a first stack of conductive strands adjacent a first side of the first stack of cooling tubes;
a second stack of conductive strands adjacent a second side of the first stack of cooling tubes;
a third stack of conductive strands adjacent a first side of the second stack of cooling tubes;
a fourth stack of conductive strands adjacent a second side of the second stack of cooling tubes;
a first header conductively bonded to each strand of the first and second stacks of conductive strands for consolidating the first and second stacks of conductive; and
a second header conductively bonded to each strand of the third and fourth stacks of conductive strands for consolidating the third and fourth stacks of conductive strands. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. ) A double-header for consolidating a plurality of stacks of conductive strands in an inner-cooled half coil for use as part of a stator phase winding in an electrical generator wherein the half coil includes at least one stack of cooling tubes with respective ones of the plurality of stacks of conductive strands adjacent the at least one stack of cooling tubes, the double-header comprising:
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a first header comprising a first exterior conductive member and a first interior conductive member wherein the first header is conductively bonded to each strand of a first and second stack of conductive strands for consolidating the first and second stacks of conductive strands so that the first header may be conductively connected with another device of the electrical generator;
a second header comprising a second exterior conductive member and a second interior conductive member wherein the second header is conductively bonded to each strand of a third and fourth stack of conductive strands for consolidating the third and fourth stacks of conductive strands so that the second header may be conductively connected with another device of the electrical generator; and
an insulating barrier disposed between the first header and the second header. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29)
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30. ) A method for consolidating the stacks of conductive strands of an inner-cooled half coil end of an electrical generator, the method comprising:
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providing a conductive header;
brazing each strand of the stacks of conductive strands of the half coil to the conductive header; and
conductively connecting the header to another device associated with the electrical generator. - View Dependent Claims (31, 32, 33, 34, 35)
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Specification