CN109687370B - Current conversion transformer casing fitting supporting device and current conversion station - Google Patents
Current conversion transformer casing fitting supporting device and current conversion station Download PDFInfo
- Publication number
- CN109687370B CN109687370B CN201811559799.2A CN201811559799A CN109687370B CN 109687370 B CN109687370 B CN 109687370B CN 201811559799 A CN201811559799 A CN 201811559799A CN 109687370 B CN109687370 B CN 109687370B
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- sleeve
- supporting
- leg
- support
- current conversion
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 23
- 239000004020 conductor Substances 0.000 claims abstract description 40
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 8
- 239000010931 gold Substances 0.000 claims description 8
- 229910052737 gold Inorganic materials 0.000 claims description 8
- 238000009413 insulation Methods 0.000 claims description 3
- 230000008878 coupling Effects 0.000 description 5
- 238000010168 coupling process Methods 0.000 description 5
- 238000005859 coupling reaction Methods 0.000 description 5
- 125000006850 spacer group Chemical group 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 239000004593 Epoxy Substances 0.000 description 2
- 239000004809 Teflon Substances 0.000 description 2
- 229920006362 Teflon® Polymers 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G5/00—Installations of bus-bars
Landscapes
- Housings And Mounting Of Transformers (AREA)
Abstract
The invention relates to a current conversion transformer bushing hardware fitting supporting device and a current conversion station. The current conversion transformer bushing hardware fitting supporting device comprises a supporting sleeve, the supporting sleeve is an opening sleeve, an inner hole forms a channel for a corresponding connecting conductor to pass through, an insulating layer is arranged on the wall of the channel, one end of the supporting sleeve is connected with a supporting leg device, the supporting leg device comprises a supporting leg with an insulating outer surface and a connecting plate which is arranged at one end of the supporting leg and far away from the supporting sleeve, and the connecting plate is used for being connected with a flange plate of the corresponding current conversion transformer bushing. When the sleeve hardware fitting is subjected to external force, the upper end of the sleeve hardware fitting is suspended, and the lower end of the sleeve hardware fitting is fixed, so that the sleeve hardware fitting cannot shake, a connecting conductor cannot be pulled, and the stress on a sleeve wiring terminal is avoided; the connecting conductor penetrates through an inner hole of the supporting sleeve, the supporting sleeve surrounds the connecting conductor inside the supporting sleeve, the connecting conductor is prevented from contacting with the terminal shielding cover, the bottle type switching conductor does not need to be arranged at the moment, and the connecting conductor can be completely in flexible connection, so that the bushing wiring terminal is prevented from bearing pressure.
Description
Technical Field
The invention relates to a current conversion transformer bushing hardware fitting supporting device and a current conversion station.
Background
The converter station is an indispensable part in the direct current transmission project and is responsible for the important role of alternating current and direct current conversion. With the increasing demand of electric power, the load capacity and the current-carrying capacity of the converter station are gradually increased, and the requirements on the bushing terminal are higher and higher. Sleeve pipe binding post needs to be connected with corresponding tub generating line, because the sleeve pipe binding post outside of converter station is provided with the terminal shield cover, in order to avoid the connecting conductor between sleeve pipe binding post and the tub generating line to contact with the terminal shield cover, connecting conductor comprises two parts, one of them part is bottle formula switching conductor, and the other part is the flexible coupling, and the bottleneck end of bottle formula switching conductor inserts in the terminal shield cover and is connected with the sleeve pipe binding post of suspension, fixes through sleeve pipe binding post simultaneously, and the flexible coupling is located between the bottle bottom of bottle formula switching conductor and tub generating line, avoids the flexible coupling to warp down under the effect of gravity from this and contacts with the terminal shield cover. Therefore, the weight of the bottle-type switching conductor weighing tens of kilograms is completely borne by the bushing terminal, and great adverse effects are brought to the reliability of the bushing terminal. In addition, sleeve pipe gold utensil (be used for connecting pipe generating line) receives the exogenic action can take place to rock, when the range of rocking reaches a definite value, and the flexible coupling of connection between sleeve pipe gold utensil and bottle formula switching conductor is straightened, and the flexible coupling will produce the pulling force to bottle formula switching conductor, because bottle formula switching conductor and sleeve pipe binding post fixed connection, this pulling force will be acted on sleeve pipe binding post through bottle formula switching conductor on, leads to sleeve pipe binding post to take place to become flexible even to be pulled off. In order to make the connection terminal conduct current better and more safely, external force borne by the connection terminal needs to be reduced as much as possible, and therefore, it is particularly necessary to design a sleeve hardware fitting supporting device to share stress of the connection terminal.
Disclosure of Invention
The invention aims to provide a current conversion transformer bushing hardware fitting supporting device, which is used for solving the problem of potential safety hazard caused by bearing larger external force action of a bushing terminal in the prior art; meanwhile, the invention also provides a converter station for solving the problems.
In order to achieve the purpose, the current conversion transformer casing hardware support device adopts the following scheme:
the current conversion transformer bushing hardware fitting supporting device comprises a supporting sleeve used for supporting a corresponding current conversion transformer bushing hardware fitting, the supporting sleeve is an opening sleeve, an inner hole forms a channel for a corresponding connecting conductor to pass through, an insulating layer is arranged on the wall of the channel, one end of the supporting sleeve is connected with a supporting leg device, the supporting leg device comprises a supporting leg with an insulated outer surface and a connecting plate arranged at one end, far away from the supporting sleeve, of the supporting leg, and the connecting plate is used for being connected with a flange plate of the corresponding current conversion transformer bushing.
The invention has the beneficial effects that: when the support leg device is used, the current conversion transformer bushing hardware fitting is fixedly connected with the support sleeve, the support leg device is fixedly connected with the flange plate of the corresponding current conversion transformer bushing, when the bushing hardware fitting is subjected to external force, the upper end of the bushing hardware fitting is suspended, and the lower end of the bushing hardware fitting is fixed, so that the bushing hardware fitting cannot shake, connecting conductors connected between the bushing wiring terminal and the pipe bus cannot be pulled, and the bushing wiring terminal is prevented from being stressed; the connecting conductor connected between the bushing terminal and the tubular bus passes through the inner hole of the supporting sleeve, the supporting sleeve surrounds the connecting conductor inside the supporting sleeve, the connecting conductor is prevented from contacting with the terminal shielding cover, the bottle-type switching conductor does not need to be arranged at the moment, and the connecting conductor can be completely in flexible connection, so that the bushing terminal is prevented from bearing pressure. The current conversion transformer bushing hardware fitting support device can prevent the bushing terminal from bearing external force, so that the terminal can conduct current better and more safely.
The landing leg device has at least two, every landing leg device all includes more than two landing legs, and each landing leg of same landing leg device shares the connecting plate. The two supporting leg devices are relatively independent and can be respectively connected with the flange plates of the corresponding converter transformer bushings, so that the field installation is facilitated.
The joints of the supporting leg devices and the supporting sleeve are mutually insulated. Avoid forming the current return circuit between support cover and the landing leg device.
One end of the support sleeve, which is back to the support leg device, is provided with a blocking edge which protrudes outwards in the radial direction. The sleeve hardware fitting is stopped by the stop edge, so that the sleeve hardware fitting is prevented from falling off.
The converter station of the invention adopts the following scheme:
the converter station comprises a sleeve, a sleeve wiring terminal, a tubular bus and a sleeve hardware fitting connected between the sleeve wiring terminal and the tubular bus, wherein a hardware fitting supporting device is fixedly arranged on the sleeve and comprises a supporting sleeve, the supporting sleeve is an opening sleeve, an inner hole forms a channel for a corresponding connecting conductor to pass through, an insulating layer is arranged on the wall of the channel, one end of the supporting sleeve is connected with a supporting leg device, the supporting leg device comprises a supporting leg with an insulating surface, one end of the supporting leg, far away from the supporting sleeve, is connected with a flange plate of the sleeve, and the sleeve hardware fitting is connected with the supporting sleeve through a connecting rod or a connecting rod group.
The invention has the beneficial effects that: the sleeve hardware fitting is fixedly connected with the hardware fitting supporting device, the hardware fitting supporting device is fixedly connected with the flange plate of the corresponding current conversion transformer sleeve, and the sleeve is fixed, so that the lower end of the sleeve hardware fitting is also fixed, the sleeve hardware fitting suspended at the upper end cannot shake when being subjected to external force, a connecting conductor connected between the sleeve wiring terminal and the pipe bus cannot be pulled, and the stress of the sleeve wiring terminal is avoided; the connecting conductor connected between the bushing terminal and the tubular bus passes through the inner hole of the supporting sleeve, the supporting sleeve surrounds the connecting conductor inside the supporting sleeve, the connecting conductor is prevented from contacting with the terminal shielding cover, the bottle-type switching conductor does not need to be arranged at the moment, and the connecting conductor can be completely in flexible connection, so that the bushing terminal is prevented from bearing pressure. Through the gold utensil strutting arrangement can avoid sleeve pipe binding post to bear external force, make binding post can be better safer water conservancy diversion.
The supporting leg device is provided with at least two supporting legs, each supporting leg device comprises more than two supporting legs, all the supporting legs of the same supporting leg device are fixed on the same connecting plate, and the connecting plate is connected with the flange plate of the sleeve. The two supporting leg devices are relatively independent and can be respectively connected with the flange plates of the corresponding converter transformer bushings, so that the field installation is facilitated.
The joints of the supporting leg devices and the supporting sleeve are mutually insulated. Avoid forming the current return circuit between support cover and the landing leg device.
And one end of the connecting rod or the connecting rod group, which is close to the supporting sleeve, is provided with a hoop, and the hoop is fixed on the supporting sleeve. The connecting rod or the connecting rod group is more conveniently and fixedly connected with the supporting sleeve, and the sleeve hardware fitting and the supporting sleeve are conveniently detached.
The support sleeve is connected with the sleeve hardware fitting through the connecting rod group, and the connecting rods of the connecting rod group are arranged at a set included angle to avoid an opening of a shielding ball arranged outside the sleeve hardware fitting. If support and be connected through a connecting rod between cover and the sleeve pipe gold utensil, the opening of shielding ball probably causes the interference to the fixed of connecting rod, will support and organize through the connecting rod between cover and the sleeve pipe gold utensil and make and be the contained angle of settlement between the connecting rod of connecting rod group and arrange then can realize fixedly under the condition that does not change the shielding ball opening.
The sleeve connecting terminal is directly connected with the tubular bus through flexible connection. The bushing terminal is prevented from bearing pressure.
Drawings
Fig. 1 is a schematic structural view of a particular embodiment of a converter station according to the invention;
FIG. 2 is a perspective view of the supporting device of FIG. 1;
fig. 3 is a schematic structural view of the hardware supporting device shown in fig. 2;
FIG. 4 is a view taken along line A of FIG. 3;
FIG. 5 is a view from the direction B of FIG. 3;
in the figure: 1-a support leg; 2-supporting the sleeve; 201-outer boss; 202-blocking edge; 3-connecting the plates; 4-arc-shaped plates; 5-an insulating spacer; 6-sleeve hardware; 7-a flange plate; 8-hardware support means; 9-tubular bus; 10-bushing terminals; 11-a shielding ball; 12-a terminal shield; 13-connecting rod set; and 14-hoops.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings.
As shown in fig. 1, a specific embodiment of the converter station of the present invention includes a casing (not shown in the figure), a casing connection terminal 10, a tubular bus bar 9, and a casing hardware 6 connected between the casing connection terminal 10 and the tubular bus bar 9, wherein a hardware support device 8 is fixedly disposed on the casing. As shown in fig. 2 to 5, the hardware support device 8 includes a support sleeve 2, the support sleeve 2 is an open sleeve, an inner hole forms a channel for passing a corresponding connection conductor, and an insulating primer is brushed on the wall of the channel to form an insulating layer. The one end of supporting sleeve 2 is connected with the landing leg device, and the landing leg device includes surface insulation's landing leg 1, and the one end of keeping away from supporting sleeve 2 of landing leg 1 is connected with sheathed tube flange board 7, and sleeve pipe gold utensil 6 is connected with supporting sleeve 2 through connecting rod group.
The landing leg device is equipped with two, and every landing leg device all includes two landing legs 1, and connecting plate 3 is all shared to two landing legs 1 of same landing leg device, and the one end that is close to support cover 2 of every landing leg 1 all is connected with arc 4, landing leg 1 and arc 4, connecting plate 3 welded connection. The supporting leg 1 is an aluminum alloy pipe sleeved with an insulating pipe. The two supporting leg devices are relatively independent and can be respectively connected with the flange plates 7 of the corresponding converter transformer bushings, so that the field installation is facilitated. One end of the support sleeve 2 is provided with an outer boss 201 protruding outwards in the radial direction, and the support sleeve 2 is fixedly connected with the leg device through the outer boss 201 at the end part of the support sleeve. Bolt mounting holes are correspondingly formed in the outer boss 201 and the arc plates 4, an insulating partition plate 5 is clamped between the outer boss 201 and each arc plate 4, and bolts sequentially penetrate through the outer boss 201, the insulating partition plate 5 and the arc plates 4 to fixedly connect the support sleeve 2 with the support leg device. An insulating washer is arranged on one side of the bolt pressing, and the mutual insulation of the joint of the supporting leg device and the supporting leg device 2 is realized through the insulating partition plate 5 and the insulating washer, so that a current loop is prevented from being formed between the supporting leg device and the supporting leg device 2. Specifically, the insulating spacer 5 is a teflon spacer, and the insulating washer is a teflon washer. Of course, the insulating spacer may also be an epoxy spacer, and the insulating washer may also be an epoxy washer.
As shown in fig. 2, a blocking edge 202 protruding radially outward is disposed at an end of the support sleeve 2 facing away from the leg device, and the sleeve fitting 6 is blocked at the side facing away from the leg device by the blocking edge 202, so as to prevent the sleeve fitting 6 from falling off.
The support sleeve 2 and the casing hardware fitting 6 can be connected through a connecting rod or a connecting rod group. Considering that the size of the opening of the shielding ball 11 is limited, if the support sleeve 2 is connected with the casing fitting 6 by a connecting rod, the opening of the shielding ball 11 may interfere with the fixing of the connecting rod, and at this time, the opening of the shielding ball 11 needs to be enlarged. In order to realize the connection between the support sleeve 2 and the casing fitting 6 without changing the opening of the shielding ball 11, in the present embodiment, the support sleeve 2 and the casing fitting 6 are connected by the connection rod group 13. The connecting rod group 13 includes two connecting rods, and the two connecting rods are arranged at a set included angle to avoid an opening of the shielding ball 11 arranged outside the casing hardware fitting 6. One end of the connecting rod group 13 close to the support sleeve 2 is provided with an anchor ear 14, the anchor ear 14 is fixed on the support sleeve 2, and the end part of the connecting rod group 13 and the anchor ear 14 are fixed through bolts.
The sleeve connecting terminal 10 is directly connected with the tubular bus bar 9 through a flexible connection.
In the operation process of the converter station, the sleeve hardware fitting 6 is fixedly connected with the hardware fitting supporting device 8, the hardware fitting supporting device 8 is fixedly connected with the flange plate 7 of the corresponding converter transformer sleeve, and the sleeve is fixed, so that the lower end of the sleeve hardware fitting 6 is also fixed, and the upper end of the sleeve hardware fitting 6 is suspended, so that even if the sleeve hardware fitting 6 is subjected to external force, the sleeve hardware fitting cannot shake, a connecting conductor connected between the sleeve wiring terminal 10 and the pipe bus 9 cannot be pulled, and the stress of the sleeve wiring terminal 10 is avoided; the connecting conductor connected between the bushing terminal 10 and the tubular bus 9 passes through the inner hole of the support sleeve 2, the support sleeve 2 surrounds the connecting conductor inside, the connecting conductor is prevented from contacting the terminal shielding case 12, the bottle-type switching conductor does not need to be arranged at the moment, and the connecting conductor can be completely in flexible connection, so that the bushing terminal 10 is prevented from bearing pressure.
In conclusion, in the operation process of the converter station, the sleeve hardware fitting is supported by the hardware fitting supporting device, and external force borne by the sleeve wiring terminal is transferred to the flange plate, so that the sleeve wiring terminal is prevented from bearing the external force, and the wiring terminal can conduct flow better and more safely.
In the above embodiment, two leg devices are provided, each leg device includes two legs, each leg of the same leg device shares the connecting plate, and the two leg devices are independent of each other and can be respectively connected to the flange plate. In other embodiments, each leg device may further include more than three legs, and the legs of the same leg device may share the same connecting plate, or may be connected to one connecting plate. The supporting leg device can be only provided with one supporting leg device and comprises at least three supporting legs, and the three supporting legs form a three-point support so as to ensure the supporting reliability.
In the above embodiment, each leg is connected to the arc plates and the connecting plates at both ends by welding. In other embodiments, threaded sections can be arranged at two ends of each supporting leg, threaded holes are formed in the arc-shaped plate and the connecting plate, and the supporting legs are in threaded connection with the arc-shaped plate and the connecting plate.
In the above embodiment, one end of the support sleeve facing away from the leg device is provided with a blocking edge protruding outward in the radial direction, so as to block the casing hardware fitting at one side facing away from the leg device. In other embodiments, a nut may be screwed on an end of the support sleeve opposite to the leg device, and the sleeve is stopped by the nut.
In the above embodiment, the connecting rod set is fixedly connected with the support sleeve through the hoop. In addition, the connecting rod group can also be directly fixedly connected on the supporting sleeve.
The invention further provides an embodiment of the current converting transformer bushing hardware supporting device, the specific structure of the embodiment is the same as that of the hardware supporting device in the embodiment of the current converting station, and the details are not repeated here.
Claims (10)
1. The utility model provides a change of current transformer sleeve pipe gold utensil strutting arrangement, characterized by, including the support cover that is used for supporting corresponding change of current transformer sleeve pipe gold utensil, support the cover and be the opening cover, the hole forms the passageway that supplies corresponding connecting conductor to pass through, be equipped with the insulating layer on the wall of passageway, the one end of supporting the cover is connected with the landing leg device, the landing leg device includes surface insulation's landing leg and locates the landing leg keep away from the connecting plate of the one end of supporting the cover, the connecting plate is used for being connected with corresponding change of current transformer sleeve pipe's flange board.
2. The current conversion transformer casing fitting support device according to claim 1, wherein there are at least two leg devices, each of the leg devices includes more than two legs, and the legs of the same leg device share the connection plate.
3. The current conversion transformer bushing fitting support device according to claim 1, wherein the connection between the support leg device and the support sleeve is insulated from each other.
4. The current conversion transformer casing fitting support device according to any one of claims 1 to 3, wherein a radially outwardly protruding retaining edge is provided at an end of the support sleeve facing away from the leg device.
5. The converter station comprises a sleeve, a sleeve wiring terminal, a tubular bus and a sleeve hardware fitting connected between the sleeve wiring terminal and the tubular bus, and is characterized in that a hardware fitting supporting device is fixedly arranged on the sleeve and comprises a supporting sleeve, the supporting sleeve is an opening sleeve, an inner hole forms a channel for a corresponding connecting conductor to pass through, an insulating layer is arranged on the wall of the channel, one end of the supporting sleeve is connected with a supporting leg device, the supporting leg device comprises a supporting leg with an insulating surface, one end of the supporting leg, far away from the supporting sleeve, is connected with a flange plate of the sleeve, and the sleeve hardware fitting is connected with the supporting sleeve through a connecting rod or a connecting rod group.
6. A converter station according to claim 5, characterized in that said leg means are at least two, each of said leg means comprising more than two legs, the legs of the same leg means being fixed to the same connecting plate, said connecting plate being connected to the flange plate of the bushing.
7. A converter station according to claim 5, characterized in that the connection of said leg means and said support sleeve is insulated from each other.
8. A converter station according to claim 5, characterized in that the end of the connecting rod or the group of connecting rods near the support jacket is provided with a hoop, which is fixed to the support jacket.
9. The converter station according to any of claims 5-8, wherein the support sleeve is connected to the casing hardware by the connection rod set, and the connection rods of the connection rod set are arranged at a predetermined angle to avoid the opening of the shielding ball disposed outside the casing hardware.
10. A converter station according to any of claims 5-8, characterized in that the bushing terminals are directly connected to the tube bus bars by means of a flexible connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811559799.2A CN109687370B (en) | 2018-12-19 | 2018-12-19 | Current conversion transformer casing fitting supporting device and current conversion station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811559799.2A CN109687370B (en) | 2018-12-19 | 2018-12-19 | Current conversion transformer casing fitting supporting device and current conversion station |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109687370A CN109687370A (en) | 2019-04-26 |
| CN109687370B true CN109687370B (en) | 2020-10-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811559799.2A Active CN109687370B (en) | 2018-12-19 | 2018-12-19 | Current conversion transformer casing fitting supporting device and current conversion station |
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| Country | Link |
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| CN (1) | CN109687370B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110120642B (en) * | 2019-05-14 | 2021-02-26 | 南方电网科学研究院有限责任公司 | Sleeve wiring device and power transmission equipment |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09200928A (en) * | 1996-01-12 | 1997-07-31 | Toshiba Corp | Phase separated bus |
| KR20080043284A (en) * | 2008-04-28 | 2008-05-16 | 임성황 | The bus for the distribution line of low voltage |
| CN203387132U (en) * | 2013-05-27 | 2014-01-08 | 国家电网公司 | Connecting structure of converter station valve hall wall bushing and tubular bus-bar and connecting fitting thereof |
| CN103618213B (en) * | 2013-12-05 | 2016-01-27 | 国家电网公司 | A kind of 800kV current conversion station cannula tip connects gold utensil |
| CN203774718U (en) * | 2014-04-02 | 2014-08-13 | 国家电网公司 | A 800kV direct current wall bushing and current transformer connection support fitting |
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2018
- 2018-12-19 CN CN201811559799.2A patent/CN109687370B/en active Active
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| CN109687370A (en) | 2019-04-26 |
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