US3602751A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transposed conductor for dynamoelectric machines
Assignee: Westinghouse Electric Corp
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Filing: 1970-03-16
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Granted: 1971-08-31
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Expires: 1990-03-16
Abstract
Abstract A transposed stranded conductor bar for dynamoelectric machines in which the conductor is completely transposed in a theoretically perfect manner to cancel out all induced strand voltages and to eliminate any circulating currents between strands. This is done by transposing the strands through 540* in the slot portion of the conductor and through 180* in both end portions of the conductor but with the transposition in opposite senses in the two end portions so that at any axial position in one end portion the strands are completely inverted in relative position with respect to the strands in the corresponding axial position in the other end portion.
Inventors
- 👤 William C Brenner
- 👤 John A Tegopoulos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:24
CPC Classifications
H; H02; H02K; H02K3/00; H02K3/04; H02K3/12; H02K3/14
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
111 words
A conductor bar for a dynamoelectric machine having a straight central slot portion and two end portions, said conductor bar comprising a plurality of strands disposed in sideby-side stacks, said strands being transposed by crossovers from one stack to the other, the strands being completely transposed in the slot portion such that the strands are inverted in relative position at opposite ends of the slot portion, and the strands being further transposed through an angle of 180* in each end portion such that the strands at any position in one end portion are inverted in relative position with respect to the strands in the corresponding position in the other end portion.
Claim 2
Dependent Claim
111 words
A conductor bar for a dynamoelectric machine having a straight central slot portion and two end portions, said conductor bar comprising a plurality of strands disposed in sideby-side stacks, said strands being transposed by crossovers from one stack to the other, the strands being completely transposed in the slot portion such that the strands are inverted in relative position at opposite ends of the slot portion, and the strands being further transposed through an angle of 180* in each end portion such that the strands at any position in one end portion are inverted in relative position with respect to the strands in the corresponding position in the other end portion.
Claim 3
Dependent Claim
23 words
A conductor bar as defined in claim 1 in which the strands are transposed through an angle of 540* in the slot portion.
Claim 4
Dependent Claim
38 words
A conductor bar as defined in claim 1 in which the strands are transposed through an angle of 180* in one end portion and through an angle of 180* in the opposite sense in the other end portion.
Claim 5
Dependent Claim
35 words
A conductor bar as defined in claim 1 in which the strands are transposed through an angle of 540* in the slot portion and through angles of 180* in opposite senses in the end portions.
Claim 6
Dependent Claim
120 words
A conductor bar for a dynamoelectric machine having a straight central slot portion and two end portions, said conductor bar comprising a plurality of strands disposed in side-by-side stacks, said strands being transposed by crossovers from one stack to the other, the strands being uniformly transposed through 180* in the first quarter of the slot portion, through 180* in the second and third quarters of the slot portion and through 180* in the fourth quarter of the slot portion, and the strands being transposed in the end portions such that the strands at any axial position in one end portion are inverted in relative position with respect to the strands in the corresponding axial position in the other end portion.
Claim 7
Dependent Claim
120 words
A conductor bar for a dynamoelectric machine having a straight central slot portion and two end portions, said conductor bar comprising a plurality of strands disposed in side-by-side stacks, said strands being transposed by crossovers from one stack to the other, the strands being uniformly transposed through 180* in the first quarter of the slot portion, through 180* in the second and third quarters of the slot portion and through 180* in the fourth quarter of the slot portion, and the strands being transposed in the end portions such that the strands at any axial position in one end portion are inverted in relative position with respect to the strands in the corresponding axial position in the other end portion.
Claim 8
Dependent Claim
26 words
A conductor bar as defined in claim 5 in which the strands are transposed through 180* in opposite senses in each of the two end portions.
Claim 9
Dependent Claim
45 words
A conductor bar as defined in claim 5 in which the strands are transposed through 180* in one end portion in the same sense as the transposition in the slot portion and are transposed through 180* in the opposite sense in the other end portion.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-30 | 1975-03-01 | 1975-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-30 | 1979-03-01 | 1979-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-30 | 1983-03-01 | 1983-08-31 | $7700.00 | Window Closed / Lapsed |