US2459322A - Stationary induction apparatus - Google Patents
Stationary induction apparatus Download PDFInfo
- Publication number
- US2459322A US2459322A US583053A US58305345A US2459322A US 2459322 A US2459322 A US 2459322A US 583053 A US583053 A US 583053A US 58305345 A US58305345 A US 58305345A US 2459322 A US2459322 A US 2459322A
- Authority
- US
- United States
- Prior art keywords
- windings
- casing
- core
- air
- longitudinal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F30/00—Fixed transformers not covered by group H01F19/00
- H01F30/06—Fixed transformers not covered by group H01F19/00 characterised by the structure
- H01F30/10—Single-phase transformers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S174/00—Electricity: conductors and insulators
- Y10S174/13—High voltage cable, e.g. above 10kv, corona prevention
- Y10S174/32—High voltage cable, e.g. above 10kv, corona prevention having means for cooling
Definitions
- This invention relates in general ⁇ to stationary induction apparatus and more particularly to a cooling and ventilating system for encased stationary induction apparatus of the type including,r transformers, reactors and the like.
- baflle -arrangement for encased electrical apparatus of the above type which will provide efficient air flow through both longitudinal and lateral passageways between portions of the .windings
- baffle structure for encased electrical apparatus of the above type, which baffle structure is unsymmetrical with respect to the apparatus windings so as to provide a turbulent fiow of air through the lateral passageways in the apparatus.
- Fig. l is a diagrammatic showing of an encased transformer illustrating an embodiment of the present invention
- Fig. 2 ' is a section view taken on the line II-II of Fig. 1;
- Fig. 3 illustrates a modification of the embodiment shown in Figs. 1 and 2.
- the invention is illustrated in the drawings in an exemplary manner by a diagrammatic showing of an encased transformer which comprises generally a casing 3 and a core member 4 supported therein by the frame members 25, IS and 19.
- the windings 5, ⁇ 8 and 32 are shown as surrounding the core member, the windings 5 and G being illustrative of la divided low voltage winding wound in cylindrical form, and the winding 32 being shown 'as a spaced Stack of disk coils 'l which illustrate a high voltage winding.
- the Winding 5 is shown as spaced from the core 4 and the windings 5, -8 and 32 are shown as spaced from each other and from the insulating barrier 2B by means of spacers 20 to provide Vertical or longitudinal passages adjacent each of the wndings.
- the coils 'l of the winding 32 are spaced by means of spacers 2
- the core 4 is split into two sections spaced apart by spacers 23 to form a passageway 22 between the two Sections.
- the ⁇ casing 3 is divided into two portions by means of baflle structure, of a modified Z-shape in cross section and 'composed of elements 8, 9 and IO arranged so that the passa'ge 22 through the core and the passages 'between and adjacent the windings 5, '8 and 32 extend from one portion of the casing to the other.
- the lower bafile 8 extends from one side of the casing 3 to substantially the center line of the multiple ccres, surrounding the left half of the windings as shown in Figs. 2 and 3, but leaving a passageway 30 between the baille 'and the winding 32.
- the upper baflle IO extends in a generally similar manner from the right hand side of the casing 3 to the center line of the multiple cores and surrounds the right half of the windings 32, leaving a passageway 3
- the division of the casing into two portions is completed by Vertical baflles 9 connecting the inner edges of the bafiles 8 and IO where they extend to the center line of the cores.
- the bafile 9 is spaced from the windings 32 to provide passageways 28.
- the lower portion of the casing is provided with openine's Il,
- the upper portion of the casing is shown as having openings 14 and l5 adjacent which are mounted motor driven fans 16 and ll. Additional openings may be provided in the bottom of the transformer.
- the portion 24 of the bafile IO is placed at an angle so as to prevent contact with the winding 32, either accidental or otherwise, through the louvers 21 at the opening
- the windings 5, G and 32 are symmetrical aesasaz about the longitudinal plane through the multiple cores.
- the fiow of air through the longitudinal and lateral passages is not symmetrial with respect to the longitudinal plane through the multiple cores.
- air entering the inlets Ii, iii and l flows through the Vertical and horizontal passages in a different manner on the right hand side of the windings than on the left hand side as viewed in Fig. 1.
- the dissimilarity of air ow on the two sides of the transformer provides a greater turbulence and cross flow than would be provided if .symmetrical air flow was utilized, that is, with baffies and il) both at the top of the coil stack or at the bottom thereof.
- the baifle 8 restriots the flow of air so that a relatively small amount passes up around the outside of the winding 32, most of the air fiowing through the Vertical passages, and some of the air from the Vertical duct between the barrier 26 and the winding 32 flowing outwardly through the lateral passages between the coils 'ij
- thebafiie i On the right hand side 'of the transforiner, thebafiie i being at the top of 'th-e stack, does not restrict the fiow of air entering into the lateral passages between the coils Ti.
- the number and positioning of the spacers 2B and 2d aifects the cross flow of air between the coils l'. ln Fig. 2 the spacers and 2
- the cross flow of air in the lateral passages may take 'various paths. As seen from Fig. 2, air may enter the spaces 33 between the coils 'I from the right hand side of the transformer and fiow across the windings to the left hand side. Air may enter the spaces M- and circulate there'in and pass up through the opening 3!
- the cross ow of air from the spaces 34 to the spaces 33 and 35 may take place by utilizing the Vertical duct between the barrier 26 and the windings 32 to fiow around the spacers i.
- the spacers between the winding 32 and the barrier 26 may be positioned only at the ends of the coil stack, or may be omitted if the winding 32 is supported at the outer side thereof.
- the cross fiow of air also takes place around the outside of the winding 32 through the Vertical passages 28 extending the full length between the Vertical baffie 9 and the Windings 32.
- Fig. 3 the entirestructure is similar to that i'nl'ig.V 2 except for the positioning of the spacers 21. 'These spacers iii are not on the same radial lines as the spacers 2d, but are on the radial line through a longitudinal plane through the center lines of the multiple ⁇ cores.
- the spaoers 23 between the winding 32 and the barrier 26 may also be full length, partial length, only at the ends of the coil Stack or omitted altogether and, therefore, air fiowing across the winding from the right to the left may utilize the Vertical duct between the. winding 32 and the barrier 2G as a part of the lateral pa'ssage around the spacers Si.
- Stationary induction apparatus oomprising a core provided with windings thereon, said windings being spaced to provide lateral and longitudinal passages therebetween, said windings being arra'nged substantially symmetrically about a longitudinal plane through said core and windings, a casing surrounding said core and windings and provided with an inlet in a first portion thereof and an outlet in a second portion thereof for the ilowof Cooling fluid through said passages, and means for separating said first ⁇ and second casing portions, said means oomprising a baifle structure having a substantially step-shaped cross section in a plane normal to said longitudinal plane, said battle structure extending between walls of said casing, whereby the flow of coolingfiuid through said passag'es is dissirnilar on opposite sides of said longitudinal plane.
- Stationary induction apparatus comprising a core provided with windings thereon, said windings being spaced to ⁇ provide lateral and longitudinal passages therebetween, said windings being arranged substantially syfnnietrically about a longitudinal plane through said core and windings, a casing surrounding said core and windings and provided with an inlet in a rst portion thereof and an Outlet in a second portion thereof, and means for separating said first and second casing portions, said means comprising a bave structure having a modified Z-shaped cross section in a plane substantially normal to said longitudinal plane.
- Stationary induction apparatus coinprising a core provided with windings thereon, said windings being spaced to provide lateral and longitudinal passagestherebetween, said windings being arranged substantially syrnmetrically about a longitudinal plane through said core and windings, a vcasing surrounding said core and said windings and provided with an inlet in a first portion thereof and an outlet in a second portion thereof, and a baifle structure having a substantially step-- shaped cross section in a plane normal to said longitudinal plane, said bale structure extending ture in alignment with said longitudinal passages,
- Stationary induction apparatus comprising a core and windings thereon, a casing surrounding said core and windings, a baffle structure extending between walls of said casing and said windings and dividing said casing into two portions having substantially L-shaped interlocked cross Sections, one of said casing portions being provided with an inlet and the other said casing portion being provided with an Outlet, and means for spacing said windings to form passageways therebetween extending from one to the other of said casing portions.
- Stationary induction apparatus comprising a core provided with windings thereon, said Windings being arranged substantially symmetrically about a longitudinal plane through said core and windings, a casing surrounding said core and windings and provided with an inlet in a first portion thereof and an Outlet in a second portion thereof, means for separating said first and second casing portions, said means comprising a baffie structure having modified Z-shaped cross section in a plane normal to said longitudinal plane7 and means for spacing said Windings to form. a longitudinal passageway therebetween extending from said first casing portion to said second casing portion and a lateral passageway extending from said longitudinal passageway to said first and second casing portions.
- Stationary induction apparatus comprising a core provided with windings thereon, said Windings being arranged substantially symmetricaliy about a longitudinal plane through said core and Windings, a casing surrounding said core and windings and provided with an inlet in a first portion thereof and an outlet in a second portion thereof, means for separating said first and second casing portions, said means comprising a baffie structure having a substantially step-shaped cross section in a plane normal to said longtudinal plane, said baflie structure extending betWeen walls of said casing, and means for spacing said windings to form a longitudinal passageway extending from said first casing portion to said second casing portion and a lateral passageway extending from said longitudinal passageway to said first and second casing portions, whereby the fiow of cooling fluid through said lateral passage- Way is dissimilar on opposite sides of said longitudinal plane.
- Stationary induction apparatus comprising a core provided with Windings thereon, said Windings being arranged substantially symmetrically about a longitudinal plane through said core and windings, a casing surrounding said core and said windings and provided with an inletI in a first portion thereof and an outlet in a second portion thereof, means for spacing said Windings to form a longitudinal passageway therebetween extending from said first casing portion to said second casing portion and a lateral passageway extending from said longitudinal passageway to said first and second casing portions, and a bave structure having a substantially step-shaped cross section in a plane normal to said longitudnal plane, said baffie structure extending between walls of said casing and having an aperture in alignment with said longitudinal passageway, the edge of said aperture being adjacent said windings, Whereby said bafile and said windings cooperate to separate said casing inlet and Outlet portions, said longitudinal passage forming a rectilinear path for the flow of Cooling fiuid between said casing portions.
- Stationary induction apparatus comprising a core and windings thereon, a casing surrounding said core and windings, a bafile structure extending between walls of said casing and said Windings and dividing said casing into two portions having substantially L-shaped interlocked crosssections, one of said 'casing portions being provided With an inlet and the other said casing portion being provided With an outlet, and means for spacing said Windings to form a longitudinal passageway therebetween extending from one to the other of said casing portions and a lateral passageway extending from said longitudinal passageway to said casing portions.
- Stationary induction apparatus to be cooled alternately by natural fiow or forced flow of cooling fiuid, said apparatus comprising a core and windings thereon, a casing surrounding said core and said windings, an inner bafle structure between walls of said casing and said windings and dividing said casing into a lower portion and an upper portion, means for separating said windings to form a passageway therebetween extending from one to the other of said casing portions, the lower part of a wall of said casing lower portion being provided with an inlet and a wall of said casing upper portion being provided With an outlet for the natural fiow of cooling fiuid through said inlet, said passageway and said outlet, the upper part of an outer Wall of said casing defining said lower portion being provided with an aperture, said aperture cooperating with said inlet for the inflow of Cooling fluid circulating by forced fiow through said passageway and said outlet, said aperture cooperating with said outlet for the outflow of Cooling fiuid circulating by natural flow through said inlet and said passage-
Description
Jan. 18, 1949. G. J. JoHNsToN STATIONARY INDUCTION APPARATUS Filed March 16, 1945 Patented `lan. 18, 1949 STATI ONARY INDUCTION APPARATUS Gorman J. Johnston, Bellevue, Pa., assgnor to Alls-Chalmers Manufacturing Company, Milwaukee, Wis., a corporation of Delaware Application March 16, 1945, Serial No. 583,053
9 Claims.
This invention relates in general `to stationary induction apparatus and more particularly to a cooling and ventilating system for encased stationary induction apparatus of the type including,r transformers, reactors and the like.
In prior art systems for encased transformers, vair under pressure has been permitted to flow between the windings in order to provide for a more rapid cooling of the transformer, motor driven fans being used to provide the movement of air. The efficiency of these prior art Cooling systems was limited by the restrictions to the air flow caused by the baille arrangement utilized for directing of the air flow through the windingsI and this was especially true when windings had both Vertical and horizonta-l passageways. The restrictions to air flow found in prior art b'affle arrangements prevented efiicient self-Cooling of the windings when the forced air circulation was not in operation.
It is an object of the present invention to provide an improved cooling and ventilating structure and system in stationary induction apparatus such as transformers and the like, that will avoid the above disadvantages.
It is also an object of the present invention to provide encased electrical apparatus of the above type with bafile means dividing the casing so that an efficient flow of air may be obtained either with natural or forced flow.
It is also an object of the present invention to provide a baflle -arrangement for encased electrical apparatus of the above type which will provide efficient air flow through both longitudinal and lateral passageways between portions of the .windings It is also an object of the present invention to provide a baffle structure for encased electrical apparatus of the above type, which baffle structure is unsymmetrical with respect to the apparatus windings so as to provide a turbulent fiow of air through the lateral passageways in the apparatus.
Objects and advantages other than those above set forth will be apparent from the following description when read in connection with the accompanying drawing, in which:
Fig. l is a diagrammatic showing of an encased transformer illustrating an embodiment of the present invention Fig. 2 'is a section view taken on the line II-II of Fig. 1; and
Fig. 3 illustrates a modification of the embodiment shown in Figs. 1 and 2.
The invention is illustrated in the drawings in an exemplary manner by a diagrammatic showing of an encased transformer which comprises generally a casing 3 and a core member 4 supported therein by the frame members 25, IS and 19. The windings 5, `8 and 32 are shown as surrounding the core member, the windings 5 and G being illustrative of la divided low voltage winding wound in cylindrical form, and the winding 32 being shown 'as a spaced Stack of disk coils 'l which illustrate a high voltage winding.
The Winding 5 is shown as spaced from the core 4 and the windings 5, -8 and 32 are shown as spaced from each other and from the insulating barrier 2B by means of spacers 20 to provide Vertical or longitudinal passages adjacent each of the wndings. The coils 'l of the winding 32 are spaced by means of spacers 2| to form lateral or horizontal passages therebetween. The core 4 is split into two sections spaced apart by spacers 23 to form a passageway 22 between the two Sections.
The `casing 3 is divided into two portions by means of baflle structure, of a modified Z-shape in cross section and 'composed of elements 8, 9 and IO arranged so that the passa'ge 22 through the core and the passages 'between and adjacent the windings 5, '8 and 32 extend from one portion of the casing to the other. The lower bafile 8 extends from one side of the casing 3 to substantially the center line of the multiple ccres, surrounding the left half of the windings as shown in Figs. 2 and 3, but leaving a passageway 30 between the baille 'and the winding 32. The upper baflle IO extends in a generally similar manner from the right hand side of the casing 3 to the center line of the multiple cores and surrounds the right half of the windings 32, leaving a passageway 3| therebetween. The division of the casing into two portions is completed by Vertical baflles 9 connecting the inner edges of the bafiles 8 and IO where they extend to the center line of the cores. The bafile 9 is spaced from the windings 32 to provide passageways 28.
The lower portion of the casing is provided with openine's Il, |2 and |3 which are shown as protected by louvers 21. The upper portion of the casing is shown as having openings 14 and l5 adjacent which are mounted motor driven fans 16 and ll. Additional openings may be provided in the bottom of the transformer. The portion 24 of the bafile IO is placed at an angle so as to prevent contact with the winding 32, either accidental or otherwise, through the louvers 21 at the opening |3.
The windings 5, G and 32 are symmetrical aesasaz about the longitudinal plane through the multiple cores. By reason of the modified Z-shaped bafiie structure, the fiow of air through the longitudinal and lateral passages is not symmetrial with respect to the longitudinal plane through the multiple cores. With either 'one `or both of the fans M or 55 in operation, air entering the inlets Ii, iii and l flows through the Vertical and horizontal passages in a different manner on the right hand side of the windings than on the left hand side as viewed in Fig. 1. The dissimilarity of air ow on the two sides of the transformer provides a greater turbulence and cross flow than would be provided if .symmetrical air flow was utilized, that is, with baffies and il) both at the top of the coil stack or at the bottom thereof.
On the left hand side of the transformer, the baifle 8 restriots the flow of air so that a relatively small amount passes up around the outside of the winding 32, most of the air fiowing through the Vertical passages, and some of the air from the Vertical duct between the barrier 26 and the winding 32 flowing outwardly through the lateral passages between the coils 'ij On the right hand side 'of the transforiner, thebafiie i being at the top of 'th-e stack, does not restrict the fiow of air entering into the lateral passages between the coils Ti. The flow of air in and through the winding passageways is quite complex and the exact direction of all the air ourrents will depend upon various factors such as the number and positioning of the spacers, the relative size of the various passageways and the thermal differences existing throughout the core and coils. Tests have proved conclusively that the dissirnilar ow of air produced by the modified Z-shaped baflie structure is more efficient than with a straight horizontal cross bafiie providing similar air currents on each side of the transforiner.
` As stated above, the number and positioning of the spacers 2B and 2d aifects the cross flow of air between the coils l'. ln Fig. 2 the spacers and 2| are all shown as positioned 'on the same radial lines but not on a radial line through a longitudinal plane through the center lines of the cores. The cross flow of air in the lateral passages may take 'various paths. As seen from Fig. 2, air may enter the spaces 33 between the coils 'I from the right hand side of the transformer and fiow across the windings to the left hand side. Air may enter the spaces M- and circulate there'in and pass up through the opening 3! or up through the Vertical duct between the barri'er 28 and the winding 32. If the spacers 20 between the winding 33 and the barrier Et do not extend the full length of the Vertical passage, the cross ow of air from the spaces 34 to the spaces 33 and 35 may take place by utilizing the Vertical duct between the barrier 26 and the windings 32 to fiow around the spacers i. The spacers between the winding 32 and the barrier 26 may be positioned only at the ends of the coil stack, or may be omitted if the winding 32 is supported at the outer side thereof. The cross fiow of air also takes place around the outside of the winding 32 through the Vertical passages 28 extending the full length between the Vertical baffie 9 and the Windings 32.
In Fig. 3 the entirestructure is similar to that i'nl'ig.V 2 except for the positioning of the spacers 21. 'These spacers iii are not on the same radial lines as the spacers 2d, but are on the radial line through a longitudinal plane through the center lines of the multiple` cores. In this modification the spaoers 23 between the winding 32 and the barrier 26 may also be full length, partial length, only at the ends of the coil Stack or omitted altogether and, therefore, air fiowing across the winding from the right to the left may utilize the Vertical duct between the. winding 32 and the barrier 2G as a part of the lateral pa'ssage around the spacers Si.
With the fans id and i deenergized, air will flow through the Vertical and horizontal passages due to the fact that the coil stack is hotter at the top than at the b'ottom and the opening E3 may i become an outlet or a partial outlet rather than an inlet. The fiow of air is deoreas'ed With the fans deenergized, however, the circulation of air through the lateral passages will not be restricted as would be the case if the dividing baifle were entirely in one horizontal plane.
Although but two embodiments of the present invention have been illustrated and desoribed, it will be apparent to those skilled in thel art that various changes and niodifications may be made therein without departing from the spirit of the invention or from the scope 'of the appended clairns. l
ft is clairned and desired to secure by Letters Patent:
l. Stationary induction apparatus oomprising a core provided with windings thereon, said windings being spaced to provide lateral and longitudinal passages therebetween, said windings being arra'nged substantially symmetrically about a longitudinal plane through said core and windings, a casing surrounding said core and windings and provided with an inlet in a first portion thereof and an outlet in a second portion thereof for the ilowof Cooling fluid through said passages, and means for separating said first` and second casing portions, said means oomprising a baifle structure having a substantially step-shaped cross section in a plane normal to said longitudinal plane, said baiile structure extending between walls of said casing, whereby the flow of coolingfiuid through said passag'es is dissirnilar on opposite sides of said longitudinal plane.
Stationary induction apparatus comprising a core provided with windings thereon, said windings being spaced to `provide lateral and longitudinal passages therebetween, said windings being arranged substantially syfnnietrically about a longitudinal plane through said core and windings, a casing surrounding said core and windings and provided with an inlet in a rst portion thereof and an Outlet in a second portion thereof, and means for separating said first and second casing portions, said means comprising a baiile structure having a modified Z-shaped cross section in a plane substantially normal to said longitudinal plane.
3. Stationary induction apparatus coinprising a core provided with windings thereon, said windings being spaced to provide lateral and longitudinal passagestherebetween, said windings being arranged substantially syrnmetrically about a longitudinal plane through said core and windings, a vcasing surrounding said core and said windings and provided with an inlet in a first portion thereof and an outlet in a second portion thereof, and a baifle structure having a substantially step-- shaped cross section in a plane normal to said longitudinal plane, said bale structure extending ture in alignment with said longitudinal passages,
aeseaa the edge of said aperture being adjacent said windings whereby said bafiie and said windings cooperate to separate said casing portions, said longitudinal passages providing a rectilinear path for the fiow of cooling fiuid between said casing portions.
4. Stationary induction apparatus comprising a core and windings thereon, a casing surrounding said core and windings, a baffle structure extending between walls of said casing and said windings and dividing said casing into two portions having substantially L-shaped interlocked cross Sections, one of said casing portions being provided with an inlet and the other said casing portion being provided with an Outlet, and means for spacing said windings to form passageways therebetween extending from one to the other of said casing portions.
5. Stationary induction apparatus comprising a core provided with windings thereon, said Windings being arranged substantially symmetrically about a longitudinal plane through said core and windings, a casing surrounding said core and windings and provided with an inlet in a first portion thereof and an Outlet in a second portion thereof, means for separating said first and second casing portions, said means comprising a baffie structure having modified Z-shaped cross section in a plane normal to said longitudinal plane7 and means for spacing said Windings to form. a longitudinal passageway therebetween extending from said first casing portion to said second casing portion and a lateral passageway extending from said longitudinal passageway to said first and second casing portions.
6. Stationary induction apparatus comprising a core provided with windings thereon, said Windings being arranged substantially symmetricaliy about a longitudinal plane through said core and Windings, a casing surrounding said core and windings and provided with an inlet in a first portion thereof and an outlet in a second portion thereof, means for separating said first and second casing portions, said means comprising a baffie structure having a substantially step-shaped cross section in a plane normal to said longtudinal plane, said baflie structure extending betWeen walls of said casing, and means for spacing said windings to form a longitudinal passageway extending from said first casing portion to said second casing portion and a lateral passageway extending from said longitudinal passageway to said first and second casing portions, whereby the fiow of cooling fluid through said lateral passage- Way is dissimilar on opposite sides of said longitudinal plane.
7. Stationary induction apparatus comprising a core provided with Windings thereon, said Windings being arranged substantially symmetrically about a longitudinal plane through said core and windings, a casing surrounding said core and said windings and provided with an inletI in a first portion thereof and an outlet in a second portion thereof, means for spacing said Windings to form a longitudinal passageway therebetween extending from said first casing portion to said second casing portion and a lateral passageway extending from said longitudinal passageway to said first and second casing portions, and a baiile structure having a substantially step-shaped cross section in a plane normal to said longitudnal plane, said baffie structure extending between walls of said casing and having an aperture in alignment with said longitudinal passageway, the edge of said aperture being adjacent said windings, Whereby said bafile and said windings cooperate to separate said casing inlet and Outlet portions, said longitudinal passage forming a rectilinear path for the flow of Cooling fiuid between said casing portions.
8. Stationary induction apparatus comprising a core and windings thereon, a casing surrounding said core and windings, a bafile structure extending between walls of said casing and said Windings and dividing said casing into two portions having substantially L-shaped interlocked crosssections, one of said 'casing portions being provided With an inlet and the other said casing portion being provided With an outlet, and means for spacing said Windings to form a longitudinal passageway therebetween extending from one to the other of said casing portions and a lateral passageway extending from said longitudinal passageway to said casing portions.
9. Stationary induction apparatus to be cooled alternately by natural fiow or forced flow of cooling fiuid, said apparatus comprising a core and windings thereon, a casing surrounding said core and said windings, an inner bafle structure between walls of said casing and said windings and dividing said casing into a lower portion and an upper portion, means for separating said windings to form a passageway therebetween extending from one to the other of said casing portions, the lower part of a wall of said casing lower portion being provided with an inlet and a wall of said casing upper portion being provided With an outlet for the natural fiow of cooling fiuid through said inlet, said passageway and said outlet, the upper part of an outer Wall of said casing defining said lower portion being provided with an aperture, said aperture cooperating with said inlet for the inflow of Cooling fluid circulating by forced fiow through said passageway and said outlet, said aperture cooperating with said outlet for the outflow of Cooling fiuid circulating by natural flow through said inlet and said passage- Way.
GORMAN J. JOHNSTON.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date 694,673 Schwedtmann Mar. 4, 1902 1,523,378 Lennox Jan. 13, 1925 1,563,354 Fortescue Dec. 1, 1925 2,125,138 Vogel July 26, 1938 FOREIGN PA'I'ENTS Number Country Date 167,916 Great Britain Aug. 25, 1921 374,828 Great Britain Dec. 11, 1930
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US583053A US2459322A (en) | 1945-03-16 | 1945-03-16 | Stationary induction apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US583053A US2459322A (en) | 1945-03-16 | 1945-03-16 | Stationary induction apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US2459322A true US2459322A (en) | 1949-01-18 |
Family
ID=24331500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US583053A Expired - Lifetime US2459322A (en) | 1945-03-16 | 1945-03-16 | Stationary induction apparatus |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US2459322A (en) |
Cited By (47)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2685677A (en) * | 1950-11-29 | 1954-08-03 | Gen Electric | Cooling system for electrical apparatus |
| US2751562A (en) * | 1951-12-13 | 1956-06-19 | Gen Electric | Dry-type transformer |
| US2904760A (en) * | 1955-12-30 | 1959-09-15 | Allis Chalmers Mfg Co | Glass spacing sticks for dry type transformer |
| US2927736A (en) * | 1954-04-23 | 1960-03-08 | Frederick S Rohatyn | Apparatus for cooling a device which produces heat during the operation thereof |
| US3451503A (en) * | 1967-09-26 | 1969-06-24 | Gen Electric | Sound-reducing housing for alternating current electric apparatus |
| US4032873A (en) * | 1976-05-21 | 1977-06-28 | The United States Of America As Represented By The United States Energy Research And Development Administration | Flow directing means for air-cooled transformers |
| US4495545A (en) * | 1983-03-21 | 1985-01-22 | Northern Telecom Limited | Enclosure for electrical and electronic equipment with temperature equalization and control |
| US4665466A (en) * | 1983-09-16 | 1987-05-12 | Service Machine Company | Low headroom ventilating apparatus for cooling an electrical enclosure |
| WO1998043256A1 (en) * | 1997-03-26 | 1998-10-01 | Asea Brown Boveri Ab | A controllable inductor |
| US5936503A (en) * | 1997-02-14 | 1999-08-10 | Asea Brown Boveri Ab | Controllable inductor |
| US6261437B1 (en) | 1996-11-04 | 2001-07-17 | Asea Brown Boveri Ab | Anode, process for anodizing, anodized wire and electric device comprising such anodized wire |
| US6279850B1 (en) | 1996-11-04 | 2001-08-28 | Abb Ab | Cable forerunner |
| US6357688B1 (en) | 1997-02-03 | 2002-03-19 | Abb Ab | Coiling device |
| US6369470B1 (en) | 1996-11-04 | 2002-04-09 | Abb Ab | Axial cooling of a rotor |
| US6376775B1 (en) | 1996-05-29 | 2002-04-23 | Abb Ab | Conductor for high-voltage windings and a rotating electric machine comprising a winding including the conductor |
| US6396187B1 (en) | 1996-11-04 | 2002-05-28 | Asea Brown Boveri Ab | Laminated magnetic core for electric machines |
| US6417456B1 (en) | 1996-05-29 | 2002-07-09 | Abb Ab | Insulated conductor for high-voltage windings and a method of manufacturing the same |
| US6429563B1 (en) | 1997-02-03 | 2002-08-06 | Abb Ab | Mounting device for rotating electric machines |
| US6439497B1 (en) | 1997-02-03 | 2002-08-27 | Abb Ab | Method and device for mounting a winding |
| US6465979B1 (en) | 1997-02-03 | 2002-10-15 | Abb Ab | Series compensation of electric alternating current machines |
| US6525265B1 (en) | 1997-11-28 | 2003-02-25 | Asea Brown Boveri Ab | High voltage power cable termination |
| US6525504B1 (en) | 1997-11-28 | 2003-02-25 | Abb Ab | Method and device for controlling the magnetic flux in a rotating high voltage electric alternating current machine |
| US6577487B2 (en) | 1996-05-29 | 2003-06-10 | Asea Brown Boveri Ab | Reduction of harmonics in AC machines |
| US20030164245A1 (en) * | 2000-04-28 | 2003-09-04 | Claes Areskoug | Stationary induction machine and a cable therefor |
| US6646363B2 (en) | 1997-02-03 | 2003-11-11 | Abb Ab | Rotating electric machine with coil supports |
| US6801421B1 (en) | 1998-09-29 | 2004-10-05 | Abb Ab | Switchable flux control for high power static electromagnetic devices |
| US6822363B2 (en) | 1996-05-29 | 2004-11-23 | Abb Ab | Electromagnetic device |
| US6825585B1 (en) | 1997-02-03 | 2004-11-30 | Abb Ab | End plate |
| US6828701B1 (en) | 1997-02-03 | 2004-12-07 | Asea Brown Boveri Ab | Synchronous machine with power and voltage control |
| US6831388B1 (en) | 1996-05-29 | 2004-12-14 | Abb Ab | Synchronous compensator plant |
| US6867674B1 (en) | 1997-11-28 | 2005-03-15 | Asea Brown Boveri Ab | Transformer |
| US6873080B1 (en) | 1997-09-30 | 2005-03-29 | Abb Ab | Synchronous compensator plant |
| US6885273B2 (en) | 2000-03-30 | 2005-04-26 | Abb Ab | Induction devices with distributed air gaps |
| US6891303B2 (en) | 1996-05-29 | 2005-05-10 | Abb Ab | High voltage AC machine winding with grounded neutral circuit |
| US20050257439A1 (en) * | 2004-04-29 | 2005-11-24 | Abb Technology Ag | Ventilated transformer enclosure |
| US6970063B1 (en) | 1997-02-03 | 2005-11-29 | Abb Ab | Power transformer/inductor |
| US6972505B1 (en) | 1996-05-29 | 2005-12-06 | Abb | Rotating electrical machine having high-voltage stator winding and elongated support devices supporting the winding and method for manufacturing the same |
| US6995646B1 (en) | 1997-02-03 | 2006-02-07 | Abb Ab | Transformer with voltage regulating means |
| US7019429B1 (en) | 1997-11-27 | 2006-03-28 | Asea Brown Boveri Ab | Method of applying a tube member in a stator slot in a rotating electrical machine |
| US7046492B2 (en) | 1997-02-03 | 2006-05-16 | Abb Ab | Power transformer/inductor |
| US7061133B1 (en) | 1997-11-28 | 2006-06-13 | Abb Ab | Wind power plant |
| US7141908B2 (en) | 2000-03-01 | 2006-11-28 | Abb Ab | Rotating electrical machine |
| US20110122581A1 (en) * | 2009-11-20 | 2011-05-26 | Lee-Long Chen | Heat exchange device and closed-type electronic apparatus using the same |
| US8604899B2 (en) | 2009-11-17 | 2013-12-10 | Abb Research Ltd. | Electrical transformer with diaphragm and method of cooling same |
| JP2014078542A (en) * | 2012-10-09 | 2014-05-01 | Fuji Electric Co Ltd | Cooling device for transformer |
| US20150109081A1 (en) * | 2013-10-21 | 2015-04-23 | Hammond Power Solutions, Inc. | Cast coil assembly with fins for an electrical transformer |
| US20160353604A1 (en) * | 2014-01-17 | 2016-12-01 | Telefonaktiebolaget Lm Ericsson (Publ) | Cabinet for electronic equipment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US694673A (en) * | 1901-08-17 | 1902-03-04 | Ferdinand Schwedtmann | Transformer. |
| GB167916A (en) * | 1920-06-12 | 1921-08-25 | Giulio Schroeder | Improvements in electrical transformers |
| US1523378A (en) * | 1920-10-26 | 1925-01-13 | Gen Electric | Stationary induction apparatus |
| US1563354A (en) * | 1920-08-17 | 1925-12-01 | Westinghouse Electric & Mfg Co | Transformer-cooling system |
| GB374828A (en) * | 1929-12-20 | 1932-06-16 | Westinghouse Electric & Mfg Co | Improvements in or relating to cooling systems for electrical apparatus |
| US2125138A (en) * | 1936-05-29 | 1938-07-26 | Westinghouse Electric & Mfg Co | Transformer cooling system |
-
1945
- 1945-03-16 US US583053A patent/US2459322A/en not_active Expired - Lifetime
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US694673A (en) * | 1901-08-17 | 1902-03-04 | Ferdinand Schwedtmann | Transformer. |
| GB167916A (en) * | 1920-06-12 | 1921-08-25 | Giulio Schroeder | Improvements in electrical transformers |
| US1563354A (en) * | 1920-08-17 | 1925-12-01 | Westinghouse Electric & Mfg Co | Transformer-cooling system |
| US1523378A (en) * | 1920-10-26 | 1925-01-13 | Gen Electric | Stationary induction apparatus |
| GB374828A (en) * | 1929-12-20 | 1932-06-16 | Westinghouse Electric & Mfg Co | Improvements in or relating to cooling systems for electrical apparatus |
| US2125138A (en) * | 1936-05-29 | 1938-07-26 | Westinghouse Electric & Mfg Co | Transformer cooling system |
Cited By (55)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2685677A (en) * | 1950-11-29 | 1954-08-03 | Gen Electric | Cooling system for electrical apparatus |
| US2751562A (en) * | 1951-12-13 | 1956-06-19 | Gen Electric | Dry-type transformer |
| US2927736A (en) * | 1954-04-23 | 1960-03-08 | Frederick S Rohatyn | Apparatus for cooling a device which produces heat during the operation thereof |
| US2904760A (en) * | 1955-12-30 | 1959-09-15 | Allis Chalmers Mfg Co | Glass spacing sticks for dry type transformer |
| US3451503A (en) * | 1967-09-26 | 1969-06-24 | Gen Electric | Sound-reducing housing for alternating current electric apparatus |
| US4032873A (en) * | 1976-05-21 | 1977-06-28 | The United States Of America As Represented By The United States Energy Research And Development Administration | Flow directing means for air-cooled transformers |
| US4495545A (en) * | 1983-03-21 | 1985-01-22 | Northern Telecom Limited | Enclosure for electrical and electronic equipment with temperature equalization and control |
| US4665466A (en) * | 1983-09-16 | 1987-05-12 | Service Machine Company | Low headroom ventilating apparatus for cooling an electrical enclosure |
| US6936947B1 (en) | 1996-05-29 | 2005-08-30 | Abb Ab | Turbo generator plant with a high voltage electric generator |
| US6906447B2 (en) | 1996-05-29 | 2005-06-14 | Abb Ab | Rotating asynchronous converter and a generator device |
| US6972505B1 (en) | 1996-05-29 | 2005-12-06 | Abb | Rotating electrical machine having high-voltage stator winding and elongated support devices supporting the winding and method for manufacturing the same |
| US6577487B2 (en) | 1996-05-29 | 2003-06-10 | Asea Brown Boveri Ab | Reduction of harmonics in AC machines |
| US6822363B2 (en) | 1996-05-29 | 2004-11-23 | Abb Ab | Electromagnetic device |
| US6831388B1 (en) | 1996-05-29 | 2004-12-14 | Abb Ab | Synchronous compensator plant |
| US6376775B1 (en) | 1996-05-29 | 2002-04-23 | Abb Ab | Conductor for high-voltage windings and a rotating electric machine comprising a winding including the conductor |
| US6891303B2 (en) | 1996-05-29 | 2005-05-10 | Abb Ab | High voltage AC machine winding with grounded neutral circuit |
| US6417456B1 (en) | 1996-05-29 | 2002-07-09 | Abb Ab | Insulated conductor for high-voltage windings and a method of manufacturing the same |
| US6919664B2 (en) | 1996-05-29 | 2005-07-19 | Abb Ab | High voltage plants with electric motors |
| US6940380B1 (en) | 1996-05-29 | 2005-09-06 | Abb Ab | Transformer/reactor |
| US6894416B1 (en) | 1996-05-29 | 2005-05-17 | Abb Ab | Hydro-generator plant |
| US6396187B1 (en) | 1996-11-04 | 2002-05-28 | Asea Brown Boveri Ab | Laminated magnetic core for electric machines |
| US6369470B1 (en) | 1996-11-04 | 2002-04-09 | Abb Ab | Axial cooling of a rotor |
| US6279850B1 (en) | 1996-11-04 | 2001-08-28 | Abb Ab | Cable forerunner |
| US6261437B1 (en) | 1996-11-04 | 2001-07-17 | Asea Brown Boveri Ab | Anode, process for anodizing, anodized wire and electric device comprising such anodized wire |
| US6825585B1 (en) | 1997-02-03 | 2004-11-30 | Abb Ab | End plate |
| US6465979B1 (en) | 1997-02-03 | 2002-10-15 | Abb Ab | Series compensation of electric alternating current machines |
| US6646363B2 (en) | 1997-02-03 | 2003-11-11 | Abb Ab | Rotating electric machine with coil supports |
| US6357688B1 (en) | 1997-02-03 | 2002-03-19 | Abb Ab | Coiling device |
| US6828701B1 (en) | 1997-02-03 | 2004-12-07 | Asea Brown Boveri Ab | Synchronous machine with power and voltage control |
| US7046492B2 (en) | 1997-02-03 | 2006-05-16 | Abb Ab | Power transformer/inductor |
| US6995646B1 (en) | 1997-02-03 | 2006-02-07 | Abb Ab | Transformer with voltage regulating means |
| US6429563B1 (en) | 1997-02-03 | 2002-08-06 | Abb Ab | Mounting device for rotating electric machines |
| US6439497B1 (en) | 1997-02-03 | 2002-08-27 | Abb Ab | Method and device for mounting a winding |
| US6970063B1 (en) | 1997-02-03 | 2005-11-29 | Abb Ab | Power transformer/inductor |
| US5936503A (en) * | 1997-02-14 | 1999-08-10 | Asea Brown Boveri Ab | Controllable inductor |
| WO1998043256A1 (en) * | 1997-03-26 | 1998-10-01 | Asea Brown Boveri Ab | A controllable inductor |
| US6873080B1 (en) | 1997-09-30 | 2005-03-29 | Abb Ab | Synchronous compensator plant |
| US7019429B1 (en) | 1997-11-27 | 2006-03-28 | Asea Brown Boveri Ab | Method of applying a tube member in a stator slot in a rotating electrical machine |
| US6525504B1 (en) | 1997-11-28 | 2003-02-25 | Abb Ab | Method and device for controlling the magnetic flux in a rotating high voltage electric alternating current machine |
| US7061133B1 (en) | 1997-11-28 | 2006-06-13 | Abb Ab | Wind power plant |
| US6525265B1 (en) | 1997-11-28 | 2003-02-25 | Asea Brown Boveri Ab | High voltage power cable termination |
| US6867674B1 (en) | 1997-11-28 | 2005-03-15 | Asea Brown Boveri Ab | Transformer |
| US6801421B1 (en) | 1998-09-29 | 2004-10-05 | Abb Ab | Switchable flux control for high power static electromagnetic devices |
| US7141908B2 (en) | 2000-03-01 | 2006-11-28 | Abb Ab | Rotating electrical machine |
| US6885273B2 (en) | 2000-03-30 | 2005-04-26 | Abb Ab | Induction devices with distributed air gaps |
| US7045704B2 (en) | 2000-04-28 | 2006-05-16 | Abb Ab | Stationary induction machine and a cable therefor |
| US20030164245A1 (en) * | 2000-04-28 | 2003-09-04 | Claes Areskoug | Stationary induction machine and a cable therefor |
| US20050257439A1 (en) * | 2004-04-29 | 2005-11-24 | Abb Technology Ag | Ventilated transformer enclosure |
| US8604899B2 (en) | 2009-11-17 | 2013-12-10 | Abb Research Ltd. | Electrical transformer with diaphragm and method of cooling same |
| US20110122581A1 (en) * | 2009-11-20 | 2011-05-26 | Lee-Long Chen | Heat exchange device and closed-type electronic apparatus using the same |
| US8503178B2 (en) * | 2009-11-20 | 2013-08-06 | Delta Electronics, Inc. | Heat exchange device and closed-type electronic apparatus using the same |
| JP2014078542A (en) * | 2012-10-09 | 2014-05-01 | Fuji Electric Co Ltd | Cooling device for transformer |
| US20150109081A1 (en) * | 2013-10-21 | 2015-04-23 | Hammond Power Solutions, Inc. | Cast coil assembly with fins for an electrical transformer |
| US20160353604A1 (en) * | 2014-01-17 | 2016-12-01 | Telefonaktiebolaget Lm Ericsson (Publ) | Cabinet for electronic equipment |
| US9943006B2 (en) * | 2014-01-17 | 2018-04-10 | Telefonaktiebolaget L M Ericsson (Publ) | Cabinet for electronic equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2459322A (en) | Stationary induction apparatus | |
| US3413499A (en) | Generator air gap entrance baffle for cooling stator core end portions | |
| US4000482A (en) | Transformer with improved natural circulation for cooling disc coils | |
| US3348081A (en) | Gap pickup rotor with gas segregating baffles | |
| US2920218A (en) | Supercharged dynamoelectric machine with cooling gas in contact with conductors | |
| US6097116A (en) | Turbo-generator | |
| US4306165A (en) | Cooling system for rotary electric machines | |
| EP2589132B1 (en) | Synchronous reluctance machine using rotor flux barriers as cooling channels | |
| JPS5952622B2 (en) | gas cooled electric machine | |
| CN106537733A (en) | Rotating electric machine | |
| US2663808A (en) | Dynamoelectric machine having a ventilation shield in the air gap | |
| WO2010073337A1 (en) | Transformation device | |
| US2221567A (en) | Turbogenerator rotor | |
| US3116429A (en) | Cooling arrangement for the stator teeth of a dynamoelectric machine | |
| US1672680A (en) | Dynamo-electric machine | |
| US2920219A (en) | Dynamoelectric machine with gas cooled rotor and stator conductors | |
| JP5930780B2 (en) | Reactor | |
| CN109951024A (en) | Stator and motor including it | |
| US2381297A (en) | Ventilated electromagnetic device | |
| KR19980087081A (en) | Ventilation structure of rotary electric | |
| US3462625A (en) | Rotor cooling arrangement | |
| JPS6337588B2 (en) | ||
| US2760091A (en) | Dynamo electric machine cooling | |
| US1523378A (en) | Stationary induction apparatus | |
| US2895065A (en) | Segmental air gap baffle |