Patent US3624488A successfully refreshed from Google Patents.
US3624488A
Expired / Lapsed
US
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Interphase transformer configuration
Assignee: PROCESS ELECTRONICS Corp
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Filing: 1970-11-10
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Granted: 1971-11-30
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Expires: 1990-11-10
Abstract
Abstract A rectifier system which includes a plurality of diodes in the secondary circuit thereof to provide rectification for the energy flowing from a main transformer connected to the source of alternating current power, the configuration including a plurality of parallel diodes in each phase to increase the current-carrying capabilities and an interphase transformer interconnected with each set of phase diodes, the interphase transformers being physically stacked in the rectifier assembly to facilitate the increasing of the number of paralleled diodes and thus the number of paralleled interphase transformers. The interphase transformers are stacked within two channels, the channels being bolted together to squeeze the cores of the interphase transformers. A common conductor is electrically connected, as by welding, to a center portion of the interphase transformer turns, the common conductor providing a common output conductor for all of the center taps of the interphase winding.
Inventors
- 👤 Eugene W Rabut
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:40
CPC Classifications
H; H01; H01F; H01F27/00; H01F27/40; H02; H02M; H02M7/00; H02M7/02; H02M7/04; H02M7/06; H02M7/08
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
87 words
In an electrical rectifier assembly which includes at least one diode in each phase of the secondary circuit of a main transformer, an interphase transformer assembly which comprises: a core element provided with a window therethrough; a pair of channel support members disposed on opposite sides of said core element, and including means for squeezing said core element therebetween; an interphase winding disposed through said window of said core element; and means for commonly connecting the at least one diode of each phase to said interphase winding.
Claim 2
Dependent Claim
87 words
In an electrical rectifier assembly which includes at least one diode in each phase of the secondary circuit of a main transformer, an interphase transformer assembly which comprises: a core element provided with a window therethrough; a pair of channel support members disposed on opposite sides of said core element, and including means for squeezing said core element therebetween; an interphase winding disposed through said window of said core element; and means for commonly connecting the at least one diode of each phase to said interphase winding.
Claim 3
Dependent Claim
20 words
The interphase transformer assembly, as set forth in claim 1, wherein said window in said core element is rectangularly shaped.
Claim 4
Dependent Claim
24 words
The interphase transformer assembly, as set forth in claim 1, wherein said means for squeezing said core elements is a plurality of bolt assemblies.
Claim 5
Dependent Claim
21 words
The interphase transformer assembly, as set forth in claim 1, wherein said interphase winding is formed with a hollow aperture therethrough.
Claim 6
Dependent Claim
31 words
The interphase transformer assembly, as set forth in claim 4, wherein heat is transferred from the core element by communicating a cooling fluid through said hollow aperture of said interphase winding.
Claim 7
Dependent Claim
38 words
The interphase transformer assembly, as set forth in claim 1, wherein said interphase winding is formed to define a rectangular shape having adjacent sides in 90* relationship, with said core being disposed at the mid point portion thereof.
Claim 8
Dependent Claim
38 words
The interphase transformer assembly, as set forth in claim 6, wherein a common conductor is connected to one side of said interphase windings, said common conductor connecting at least one diode in each phase of the secondary circuit.
Claim 9
Dependent Claim
84 words
In an electrical rectifier assembly which includes at least one diode in each phase of the secondary circuit of a main transformer, an interphase transformer assembly which comprises: a core element provided with a window therethrough; a hollow interphase winding disposed through said window of said core element; means for commonly connecting the at least one diode of each phase to said interphase winding; and means for cooling said core element from said winding by passing a cooling fluid through said hollow interphase winding.
Claim 10
Dependent Claim
84 words
In an electrical rectifier assembly which includes at least one diode in each phase of the secondary circuit of a main transformer, an interphase transformer assembly which comprises: a core element provided with a window therethrough; a hollow interphase winding disposed through said window of said core element; means for commonly connecting the at least one diode of each phase to said interphase winding; and means for cooling said core element from said winding by passing a cooling fluid through said hollow interphase winding.
Claim 11
Dependent Claim
35 words
The interphase transformer assembly, as set forth in claim 8, further including a pair of channel support members disposed on opposite sides of said core element, and including means for squeezing said core element therebetween.
Claim 12
Dependent Claim
24 words
The interphase transformer assembly, as set forth in claim 9, wherein said means for squeezing said core elements is a plurality of bolt assemblies.
Claim 13
Dependent Claim
38 words
The interphase transformer assembly, as set forth in claim 8, wherein said interphase winding is formed to define a rectangular shape having adjacent sides in 90* relationship, with said core being disposed at the mid point portion thereof.
Claim 14
Dependent Claim
38 words
The interphase transformer assembly, as set forth in claim 11, wherein a common conductor is connected to one side of said interphase windings, said common conductor connecting at least one diode in each phase of the secondary circuit.
Claim 15
Dependent Claim
114 words
The interphase transformer assembly as set forth in claim 1, further including a second transformer assembly having a core element provided with a window therethrough, a second interphase winding disposed through said window of said core element, a second set of at least one diode in each phase of the secondary circuit of the main transformer, means for connecting said first and second set of diodes in parallel with said main transformer, means for commonly connecting the second set of diodes of each phase to said second interphase winding, the core element of said first interphase transformer and the core element of said second interphase transformer being commonly supported by said channel support members.
Claim 16
Dependent Claim
15 words
The improvement of claim 13, wherein said cores are vertically supported, one above the other.
Claim 17
Dependent Claim
30 words
The improvement of claim 14, wherein said first and second interphase windings include a center tap for each winding, and means for commonly connecting said first and second center taps.
Claim 18
Dependent Claim
114 words
The interphase transformer assembly as set forth in claim 8, further including a second transformer assembly having a core element provided with a window therethrough, a second interphase winding disposed through said window of said core element, a second set of at least one diode in each phase of the secondary circuit of the main transformer, means for connecting said first and second set of diodes in parallel with said main transformer, means for commonly connecting the secoNd set of diodes of each phase to said second interphase winding, the core element of said first interphase transformer and the core element of said second interphase transformer being commonly supported by said channel support members.
Claim 19
Dependent Claim
15 words
The improvement of claim 16, wherein said cores are vertically supported, one above the other.
Claim 20
Dependent Claim
30 words
The improvement of claim 17, wherein said first and second interphase windings include a center tap for each winding, and means for commonly connecting said first and second center taps.
References Cited (Backward Citations)
US3289068A
Cited
US3513377A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-29 | 1975-05-31 | 1975-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-29 | 1979-05-31 | 1979-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-29 | 1983-05-31 | 1983-11-30 | $7700.00 | Window Closed / Lapsed |