CN107293395A - A kind of radial transformer with split windings of 500kV - Google Patents
A kind of radial transformer with split windings of 500kV Download PDFInfo
- Publication number
- CN107293395A CN107293395A CN201610224328.0A CN201610224328A CN107293395A CN 107293395 A CN107293395 A CN 107293395A CN 201610224328 A CN201610224328 A CN 201610224328A CN 107293395 A CN107293395 A CN 107293395A
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- transformer
- voltage
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- radial
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- 238000004804 winding Methods 0.000 title claims abstract description 44
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 22
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910052802 copper Inorganic materials 0.000 claims abstract description 18
- 239000010949 copper Substances 0.000 claims abstract description 18
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 14
- 239000002828 fuel tank Substances 0.000 claims abstract description 7
- 230000007935 neutral effect Effects 0.000 claims abstract description 6
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 3
- 239000011087 paperboard Substances 0.000 claims description 5
- 238000003825 pressing Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 4
- 238000003475 lamination Methods 0.000 claims description 4
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 3
- 230000003068 static effect Effects 0.000 claims description 3
- 241001137881 Cepaea nemoralis Species 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 230000007774 longterm Effects 0.000 abstract description 2
- 210000003128 head Anatomy 0.000 description 14
- 238000010586 diagram Methods 0.000 description 5
- 210000004709 eyebrow Anatomy 0.000 description 4
- 229920001131 Pulp (paper) Polymers 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F29/00—Variable transformers or inductances not covered by group H01F21/00
- H01F29/02—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings
- H01F29/04—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings having provision for tap-changing without interrupting the load current
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
- H01F27/12—Oil cooling
- H01F27/14—Expansion chambers; Oil conservators; Gas cushions; Arrangements for purifying, drying, or filling
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/29—Terminals; Tapping arrangements for signal inductances
- H01F27/292—Surface mounted devices
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
- H01F27/306—Fastening or mounting coils or windings on core, casing or other support
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Housings And Mounting Of Transformers (AREA)
Abstract
The present invention relates to a kind of radial transformer with split windings of 500kV, fuel tank main body with upper oil tank and lower oil tank formation, bushing, low-tension bushing, oil conservater, radiator, load ratio bridging switch and high-voltage terminal box, iron core -- voltage stabilizing coils -- the high modulation coils of low-voltage coil I-- -- high-tension coil -- low-voltage coil II arrangement architectures are used inside transformer body, iron core is arranged on oil tank, in lower oil tank, voltage stabilizing coils are cased with per column iron core, low-voltage coil I, high modulation coil, high-tension coil and low-voltage coil II, high pressure neutral point pressure regulation, outer winding is radial to lift one's head, remaining winding is lifted one's head in upper and lower end parts, high voltage winding terminal is connected by copper litz wire with bushing end simultaneously.500kV transformer with split windings of the present invention can solve the larger problem of bundle factor, and product structure is relatively easy, and anti-short circuit capability is strong, and performance safety is reliable, can fully ensure that long-term high-quality operation.
Description
Technical field
The present invention relates to a kind of transformer technology field, specifically a kind of radial transformer with split windings of 500kV.
Background technology
Split type winding transformer refers to every by a high pressure winding and two or more voltages and capacity all same
The Multiple coil power transformer that low pressure winding is constituted.The normal electric energy transmission of transformer with split winding is only entered between high and low pressure winding
OK, then there is the effect of limiting short-circuit current in failure.
Generally using low pressure winding as division winding, current transformer with split winding is in the majority with low-voltage coil axial split structure,
When bundle factor it is larger such as larger than 4 when, transformer with split winding low pressure winding axial split structure can not meet this parameter value, it is necessary to
Using radial splitted construction, there is not been reported for the radial transformer with split winding of 500kV voltage levels.
The content of the invention
Being more than the transformer with split winding axial split structure of 4 voltage levels for bundle factor in the prior art can not expire
The deficiencies such as foot this parameter value requirement, it is relatively easy, anti-short the technical problem to be solved in the present invention is to provide a kind of product structure
The radial transformer with split windings of the strong 500kV of road ability.
In order to solve the above technical problems, the technical solution adopted by the present invention is：
A kind of radial transformer with split windings of 500kV of the present invention, fuel tank main body, height with upper oil tank and lower oil tank formation
Iron is used inside gland pipe, low-tension bushing, oil conservater, radiator, load ratio bridging switch and high-voltage terminal box, transformer body
-- -- the high modulation coils of low-voltage coil I-- -- high-tension coil -- low-voltage coil II arrangement architectures, iron core is arranged on voltage stabilizing coils core
In oil tank, lower oil tank, voltage stabilizing coils, low-voltage coil I, high modulation coil, high-tension coil and low pressure are cased with every column iron core
Coil II, high pressure neutral point pressure regulation, outer winding is radial to lift one's head, and remaining winding is lifted one's head in upper and lower end parts, while high voltage winding terminal is logical
Copper litz wire is crossed with bushing end to be connected.
The load ratio bridging switch is arranged on the outside of long axis direction coil, and pressure regulation lead is connected to shunting switch and realizes each point
Connect pressure regulation.
The oil conservater is located at transformer body fuel tank top, between low-tension bushing and bushing, parallel to change
Depressor long axis direction.
The radiator is arranged in the low-pressure side of transformer, parallel with transformer long axis direction.
The iron core uses three-phase three-column structure, by three iron core principal posts, two upper yokes and two lower yoke pieces into the three-phase
The closed magnetic circuit of transformer；Iron-core draw-board, folder, top is used to use drawstring and upper beam to be combined, bottom is drawstring and feet
It is combined, sideways using the structure of pull straps.
Static board is placed in high-tension coil, low-voltage coil and voltage regulation coil end, and high voltage end outlet uses sulfate
Paper pulp part multilayer adds shield, and is clamped by paperboard pieces.
Device body uses the pressing device that fire hose is pressurizeed, i.e., fill in long cushion block compactor after one's death using fire hose compactor
Body；Along the circumferential direction uniform riveting has pin for the outward flange of pressing plate with device.
High-voltage connection uses copper litz wire deriving structure, outer shield copper shield cylinder.
Copper shield cylinder is clamped by laminated paper board holder, and with lamination wood snail bar；Using support to copper during installation
Shielding cylinder is supported.
High-voltage terminal box is located at the end of oil tank on transformer, and 500kV high-voltage terminals enter high pressure by clamping together
In outlet box, then draw through sleeve pipe.
The invention has the advantages that and advantage：
1. 500kV transformer with split windings of the present invention can solve the larger problem of bundle factor, the present invention is for 500kV transformers
For product structure it is relatively easy, anti-short circuit capability is strong, it is ensured that properties of product are safe and reliable, can fully ensure that the long-term high-quality of product
Operation.Success promotes the development process of the radial transformer with split winding of high voltage.
Brief description of the drawings
Fig. 1 is transformer front view of the present invention；
Fig. 2 is Fig. 1 left view；
Fig. 3 is Fig. 1 top view；
Fig. 4 is transformer core of the present invention and folder from top to bottom schematic diagram；
Fig. 5 is Fig. 4 left view；
Fig. 6 is Fig. 4 top view；
Fig. 7 is coil arrangement structure schematic diagram of the present invention；
Fig. 8 is that mesohigh end turn of the present invention is lifted one's head schematic diagram；
Fig. 9 is device body bottom of the present invention and schematic diagram of lifting one's head；
Figure 10 is high-voltage connection partial structural diagram of the present invention.
Wherein：1 is transformer body, and 2 be bushing, and 3 be high pressure neutral bushing, 4 low-tension bushings, during 5 are low pressure
Property point sleeve pipe, 6 be voltage stabilizing sleeve pipe, 7 be oil conservater, 8 be upper oil tank, 9 be lower oil tank, and 10 be radiator, 11 for have load point
Connect switch, 12 be high-voltage terminal box, 13 be the iron core for being cased with coil, 14 be iron-core draw-board, 15 be upper clamping piece, 16 be lower clamping piece,
17 be drawstring in eyebrow window, and 18 be top drawstring outside window, and 19 be upper beam, and 20 be drawstring in the window of bottom, and 21 be bottom drawstring outside window,
22 be feet, and 23 be top pull straps, and 24 be bottom pull straps, and 25 be voltage equalizing ball, and 26 be copper litz wire, and 27 be copper shield cylinder,
28 be support, and WV is voltage stabilizing coils, and LVI is low-voltage coil, and TV is high-tension coil, and GY is high-tension coil, and LVII is low-voltage coil
II。
Embodiment
With reference to Figure of description, the present invention is further elaborated.
As shown in Figures 1 to 3, the radial transformer with split windings of a kind of 500kV of the invention, with upper oil tank 8 and the shape of lower oil tank 9
Into fuel tank main body, bushing 2, low-tension bushing 4, oil conservater 7, radiator 10, load ratio bridging switch 11 and high-voltage terminal
Iron core is used inside box 12, transformer body -- voltage stabilizing coils WV-- low-voltage coil I LV1-- voltage regulation coil TV-- high-tension coils
GY-- low-voltage coil II LVII arrangement architectures, iron core is arranged on oil tank 8, in lower oil tank 9, per column iron core on be cased with it is steady
Line ball circle WV, low-voltage coil I LVI, voltage regulation coil TV, high-tension coil GY and low-voltage coil II LVII, high-tension coil GY end
Pressure regulation is held, outer winding is radial to lift one's head, and remaining winding is lifted one's head in upper and lower end parts, while high voltage winding terminal passes through copper litz wire and high pressure
The end of sleeve pipe 2 is connected.
Bushing 2 totally three, is tilted by the high-voltage terminal box 12 being fixed on upper oil tank 8 draw respectively；High pressure
Neutral bushing 3, low-tension bushing 4, low pressure neutral bushing 5, voltage stabilizing sleeve pipe 6 are arranged in the direction away from bushing 2,
Voltage stabilizing sleeve pipe 6 is arranged in one jiao of the transformer short axle side away from the direction of bushing 2；Oil conservater 7 is located at the main body fuel tank of transformer 1
Low-pressure side and bushing 2 between, parallel to transformer long axis direction；Radiator 10 is arranged in the low-pressure side of transformer, with
Transformer long axis direction is parallel.
As shown in figures 4-6, three-phase three-column iron core 13 is set in upper oil tank 8, lower oil tank 9, by three iron core principal posts,
The closed magnetic circuit of two upper yokes and two lower yoke pieces into the three-phase transformer.Simultaneously using iron-core draw-board 14, folder (upper clamping piece 15
With lower clamping piece 16), top use drawstring (in eyebrow window drawstring 17 and top outside window drawstring 18) and upper beam 19 to be combined, bottom for
Drawstring (in the window of bottom drawstring 20 and bottom outside window drawstring 21) and feet 22 are combined, sideways using pull straps (upper side tape splicing
23 and bottom pull straps 24) structure ensureing the clamping of lamination, the lifting of device body, compress and short-circuit condition under machinery it is strong
Degree.
High-tension coil GY head ends are lifted one's head directly leads to bushing 2 from high-tension coil GY ends by one of holder, has
On-load shunting switch 11 is arranged on the outside of major axis end coil, and pressure regulation lead is connected to shunting switch 11 and realizes each shunting voltage regulating.Become
Depressor 1 uses the structure of low-voltage coil I and low-voltage coil the II radial distribution centered on iron core, it is ensured that transformer bundle factor reaches
To protocol requirement value, while effectively enhancing product anti-short circuit capability.
Remaining end turn places static board in addition to voltage stabilizing coils WV inside transformer body, and high voltage end outlet is used
Sulfate pulp part multilayer adds shield, it is ensured that the insulation distance in its oil, while being clamped with paperboard pieces to it, it is ensured that its is good
Steadiness.Facilitate 500kV high-voltage terminals box 12 positioned at the end of oil tank 8 on transformer, 500kV high-voltage terminals warp for outlet
Cross clamping together to be put into high-voltage terminal box 12, then drawn from bushing 2.Device body compresses the pressure pressurizeed using fire hose
Tight device, fills in long cushion block using fire hose compactor and carries out compactor body after one's death.The outward flange of pressing plate is circumferentially square with device
There is pin to uniform riveting, to strengthen strength of compressive plate and avoid pressing plate from ftractureing.
Iron core 13 is using iron-core draw-board 14, upper clamping piece 15, lower clamping piece 16, top using drawstring 17, eyebrow window in eyebrow window
Outer drawstring 18 and upper beam 19 are combined, for drawstring 20, bottom in the window of bottom, drawstring 21 and feet 22 are combined outside window for bottom, side
Ensure clamping, the lifting of device body, compression and the short-circuit condition of lamination using top pull straps 23, the structure of bottom pull straps 24
Under mechanical strength.
As shown in figs. 7-9, it is the inside machine body structure of the use of transformer 1.According to Fig. 7 coil arrangement, make impedance
Calculated value meet protocol requirement value, the bundle factor of product is met protocol requirement value, while being overall anti-short of transformer
Road ability enhancing.Wherein internally positioned voltage stabilizing coils WV uses double-layer circular core structure, all to lift one's head under voltage stabilizing coils WV
Draw in portion；Low-voltage coil I LVI use two-layer spiral structure, all to lift one's head from the extraction of low-voltage coil I LVI bottoms；High pressure is adjusted
Line ball circle TV uses double-layer circular core structure, and all taps are lifted one's head draws from voltage regulation coil TV bottoms；High-tension coil GY, which is used, to be entangled
Continuous structure is tied, 500kV lifts one's head to be drawn from upper end, and high pressure end is drawn from bottom；Low-voltage coil II LVII are using spiral
Structure, lifts one's head drawn respectively from radial up and down.
As shown in figure 8, being the internal high pressure tap structure of transformer 1.Lift one's head and locate to add shield using multilayer paper pulp molding part, it is ensured that
The electrical insulation strength of 500kV high voltage winding terminals reaches setting, so as to ensure that properties of product are reliable.
As shown in figure 9, being the arrangement of the inside device body bottom of transformer 1 and tap structure figure.Embodied in figure between each coil
Major insulation between use traditional thin paper cylinder small oil gap structure, it is ensured that product electric property is reliable, while also ensuring that product
Heat dispersion reaches requirement.
As shown in Figure 10, high-voltage connection leads to bushing 2, outer shield using copper litz wire 26 from high-tension coil GY ends
Copper shield cylinder 27, accesses voltage equalizing ball 25.Copper shield cylinder 27 is supported using support 28 in installation and transportation, it is ensured that its
It is easy for installation, while ensureing that copper shield cylinder is not subjected to displacement or tilted in transportation.In experiment and operation phase by this support
Remove, and other debris around are cleaned out, to ensure the dielectric strength of high pressure part.
Claims (10)
1. a kind of radial transformer with split windings of 500kV, fuel tank main body, bushing with upper oil tank and lower oil tank formation,
Low-tension bushing, oil conservater, radiator, load ratio bridging switch and high-voltage terminal box, it is characterised in that：Adopted inside transformer body
With iron core, -- -- the high modulation coils of low-voltage coil I-- -- high-tension coil -- low-voltage coil II arrangement architectures, iron core is set voltage stabilizing coils
In upper oil tank, lower oil tank, per be cased with column iron core voltage stabilizing coils, low-voltage coil I, high modulation coil, high-tension coil and
Low-voltage coil II, high pressure neutral point pressure regulation, outer winding is radial to lift one's head, and remaining winding is lifted one's head in upper and lower end parts, while high extrude
Head is connected by copper litz wire with bushing end.
2. the radial transformer with split windings of 500kV as described in claim 1, it is characterised in that：The load ratio bridging switch is arranged in
On the outside of long axis direction coil, pressure regulation lead is connected to shunting switch and realizes each shunting voltage regulating.
3. the radial transformer with split windings of 500kV as described in claim 1, it is characterised in that：The oil conservater is located at transformer master
Body fuel tank top, between low-tension bushing and bushing, parallel to transformer long axis direction.
4. the radial transformer with split windings of 500kV as described in claim 1, it is characterised in that：The radiator is arranged in transformer
Low-pressure side, it is parallel with transformer long axis direction.
5. the radial transformer with split windings of 500kV as described in claim 1, it is characterised in that：The iron core uses three-phase three-column knot
Structure, by three iron core principal posts, two upper yokes and two lower yoke pieces into the three-phase transformer closed magnetic circuit；Using iron-core draw-board,
Folder, top use drawstring and upper beam to be combined, bottom is that drawstring and feet are combined, sideways using the structure of pull straps.
6. the radial transformer with split windings of 500kV as described in claim 1, it is characterised in that：High-tension coil, low-voltage coil and tune
Pressure end turn places static board, and high voltage end outlet adds shield using sulfate pulp part multilayer, and is clamped by paperboard pieces.
7. the radial transformer with split windings of 500kV as described in claim 1, it is characterised in that：Device body uses the pressure that fire hose is pressurizeed
Tight device, i.e., fill in long cushion block compactor body after one's death using fire hose compactor；The outward flange of pressing plate is along the circumferential direction with device
Uniform riveting has pin.
8. the radial transformer with split windings of 500kV as described in claim 1, it is characterised in that：High-voltage connection is drawn using copper litz wire
Go out structure, outer shield copper shield cylinder.
9. the radial transformer with split windings of 500kV as described in claim 8, it is characterised in that：Copper shield cylinder is pressed from both sides by laminated paper board
Gripping member, and clamped with lamination wood snail bar；Copper shield cylinder is supported using support during installation.
10. the radial transformer with split windings of 500kV as described in claim 1, it is characterised in that：High-voltage terminal box is located on transformer
The end of oil tank, 500kV high-voltage terminals enter in high-voltage terminal box by clamping together, then are drawn through sleeve pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610224328.0A CN107293395A (en) | 2016-04-11 | 2016-04-11 | A kind of radial transformer with split windings of 500kV |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610224328.0A CN107293395A (en) | 2016-04-11 | 2016-04-11 | A kind of radial transformer with split windings of 500kV |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107293395A true CN107293395A (en) | 2017-10-24 |
Family
ID=60093549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610224328.0A Pending CN107293395A (en) | 2016-04-11 | 2016-04-11 | A kind of radial transformer with split windings of 500kV |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107293395A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110415941A (en) * | 2019-08-21 | 2019-11-05 | 辽宁易发式电气设备有限公司 | A kind of transformer iron core clamp with barricade |
| CN110415941B (en) * | 2019-08-21 | 2024-05-14 | 辽宁易发式电气设备有限公司 | Transformer core clamping device with shielding plate |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102376441A (en) * | 2011-12-05 | 2012-03-14 | 保定天威集团有限公司 | High-capacity double-body split on-load voltage-regulating transformer |
| CN102543397A (en) * | 2010-12-24 | 2012-07-04 | 特变电工沈阳变压器集团有限公司 | Ultrahigh-voltage large-capacity split-winding type transformer |
| CN104851578A (en) * | 2015-04-29 | 2015-08-19 | 国网黑龙江省电力有限公司 | On-load voltage regulating transformer device and method for performing on-load voltage regulation |
| CN204792368U (en) * | 2015-06-09 | 2015-11-18 | 浙江耐特玻璃科技有限公司 | Novel power transformer |
| CN205542347U (en) * | 2016-04-11 | 2016-08-31 | 特变电工沈阳变压器集团有限公司 | Radial transformer with split windings of 500kV |
-
2016
- 2016-04-11 CN CN201610224328.0A patent/CN107293395A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102543397A (en) * | 2010-12-24 | 2012-07-04 | 特变电工沈阳变压器集团有限公司 | Ultrahigh-voltage large-capacity split-winding type transformer |
| CN102376441A (en) * | 2011-12-05 | 2012-03-14 | 保定天威集团有限公司 | High-capacity double-body split on-load voltage-regulating transformer |
| CN104851578A (en) * | 2015-04-29 | 2015-08-19 | 国网黑龙江省电力有限公司 | On-load voltage regulating transformer device and method for performing on-load voltage regulation |
| CN204792368U (en) * | 2015-06-09 | 2015-11-18 | 浙江耐特玻璃科技有限公司 | Novel power transformer |
| CN205542347U (en) * | 2016-04-11 | 2016-08-31 | 特变电工沈阳变压器集团有限公司 | Radial transformer with split windings of 500kV |
Non-Patent Citations (1)
| Title |
|---|
| 赵勇进: "500kV辐向分裂变压器关键绝缘结构优化分析" * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110415941A (en) * | 2019-08-21 | 2019-11-05 | 辽宁易发式电气设备有限公司 | A kind of transformer iron core clamp with barricade |
| CN110415941B (en) * | 2019-08-21 | 2024-05-14 | 辽宁易发式电气设备有限公司 | Transformer core clamping device with shielding plate |
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Application publication date: 20171024 |