CN203481018U - Resin-impregnated paper high-voltage capacitance bushing for converter transformer - Google Patents
Resin-impregnated paper high-voltage capacitance bushing for converter transformer Download PDFInfo
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- CN203481018U CN203481018U CN201320598909.2U CN201320598909U CN203481018U CN 203481018 U CN203481018 U CN 203481018U CN 201320598909 U CN201320598909 U CN 201320598909U CN 203481018 U CN203481018 U CN 203481018U
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- Prior art keywords
- inner catheter
- converter transformer
- paper high
- sleeve pipe
- voltage capacitance
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Abstract
The utility model discloses a resin-impregnated paper high-voltage capacitance bushing for a converter transformer. The resin-impregnated paper high-voltage capacitance bushing sequentially comprises an inner guide pipe, an outer guide pipe, a capacitance core and an insulating sleeve from inside to outside. A head portion connector and a tail portion connector are installed at the two ends of the inner guide pipe respectively. The head portion connector comprises a cover plate which is fixedly connected with one end of the insulation sleeve, one end of the outer guide pipe and one end of the capacitance core respectively, a through hole allowing the inner guide pipe to penetrate through is formed in the cover plate, the other end of the insulation sleeve is connected with a middle portion structure, the middle portion structure is connected to the capacitance core in a clamping mode, the inner portion of the middle portion structure is of a closed structure and an upper flange which is connected with the transformer is arranged on the middle portion structure. The tail portion connector comprises a base and a current-carrying terminal, wherein the base is connected with the other end of the capacitance core and the other end of the outer guide pipe respectively, the current-carrying terminal is fixed to the base and the current-carrying terminal is sleeved with the inner guide pipe. The resin-impregnated paper high-voltage capacitance bushing for the converter transformer can effectively solve problems of sealing and current carrying of ultra-high-voltage transformer bushings.
Description
Technical field
The utility model relates to transformer and fully closed combined electric unit field, is specifically related to a kind of glue and soaks paper high-voltage capacitance formula converter transformer sleeve pipe.
Background technology
Adopt the glue of epoxy resin impregnated insulating paper technology manufacture to soak paper capacitor formula bushing shell for transformer, have non-maintaining, pollution-free, volume is little, the advantage such as lightweight, easy to use, be subject to more and more users' welcome, become the bright spot in sleeve pipe market, obtain user's favor.Along with the development of electrical network, adopt glue to soak paper dry-type capacitance formula bushing shell for transformer and can accomplish low noise, pollution-free, fire prevention, explosion-proof, small-sized modularization.Trend according to electric power system without oiling development, dry sleeve has good market prospects.
Along with dry sleeve rapid application at home in recent years, and import dry sleeve is expensive, and development ultrahigh pressure dry bushing shell for transformer has become the instant responsibility of domestic dry sleeve manufacturer.Country is just carrying out extra-high voltage grid construction now, so domesticly at 550kV/1250A glue, soaks aspect the development of paper capacitor formula bushing shell for transformer always in blank.
Utility model content
The purpose of this utility model is to overcome the shortcoming of above-mentioned prior art, provides a kind of glue to soak paper high-voltage capacitance formula converter transformer sleeve pipe, and this sleeve pipe can effectively solve sealing and the current-carrying problem of extra-high voltage transformer pipe box.
For achieving the above object, glue described in the utility model soaks paper high-voltage capacitance formula converter transformer and is provided with successively from inside to outside inner catheter, outer catheter, capacitor core and insulating case with sleeve pipe, and the two ends of inner catheter are separately installed with head connector and afterbody connector;
Described head connector comprises respectively with one end of insulating case, the cover plate that one end of one end of outer catheter, capacitor core is fixedly connected with, on cover plate, offer the through hole passing for inner catheter, the other end of insulating case is connected with central structure, central structure is connected on capacitor core, the inside of central structure is closed structure, and central structure is provided with the upper flange being connected with transformer;
Described afterbody connector comprises the base being connected with the other end of capacitor core and the other end of outer catheter respectively and is fixed on the current-carrying terminal on base, and inner catheter is socketed on current-carrying terminal;
One end of described inner catheter is closed structure, and the other end is by current-carrying terminal sealing.
Capacitor core adopts epoxide-resin glue to soak paper and is prepared from.
Described insulating case adopts organic composite silicon rubber to be prepared from.
Described head connector also comprises the pressing plate for axial location inner catheter, and pressing plate is fixing on the cover board.
Axial seal between described inner catheter and cover plate;
Axial seal between described outer catheter and cover plate.
Described afterbody connector also comprises canted coil spring and for the centring ring of radially spacing inner catheter and outer catheter, centring ring is located between inner catheter and outer catheter, and centring ring is socketed on inner catheter;
Described canted coil spring is arranged between current-carrying terminal and inner catheter.
The outer surface of described capacitor core is provided with projection, central structure is provided with the branch sleeve being socketed in described projection and upper flange and the decometer being connected with branch sleeve two ends, the end face of insulating case one end is connected with upper flange, upper flange and decometer are installed in respectively the both sides of described projection, and upper flange is provided with the flange hole for connection transformer.
On described upper flange, slot, insulating case is embedded in described fluting;
End face seal between described upper flange and branch sleeve;
Axial seal between the inwall of described branch sleeve and capacitor core.
Voltage divider box is housed on described branch sleeve, for the dielectric loss of measuring capacitance in real time fuse, office, puts and the measurement mechanism of capacitance and the air relief cock of central structure being exitted during for oiling transformer, in voltage divider box, voltage divider is housed.
The utlity model has following beneficial effect:
Glue described in the utility model soaks paper high-voltage capacitance formula converter transformer and is provided with central structure, inner catheter and current-carrying terminal with sleeve pipe, one end of inner catheter is hermetically-sealed construction, the other end seals by current-carrying terminal, thereby effectively improve the transmission of electric current, the inside of described central structure is hermetically-sealed construction, thereby effectively avoids the oil in transformer to flow in central structure.Described glue soaks paper high-voltage capacitance formula converter transformer and is provided with successively from inside to outside inner catheter, outer catheter, capacitor core and insulating case with sleeve pipe in addition, thereby effectively reduce the impact of inner catheter heating on insulating case performance, reduced the radio interference that inner catheter high pressure position partial discharge produces, sleeve design has been considered insulation molding part that interior insulation, external insulation, converter transformer sleeve afterbody are arranged and impact each other thereof around simultaneously.The utility model has been filled up the blank that domestic 550kV glue soaks the development of paper capacitor formula bushing shell for transformer; Reduce the dependence of country to import dry sleeve product; Solved sealing and the current-carrying problem of ultra high voltage epoxy impregnation formula sleeve pipe, met glue and soaked the requirement that paper capacitor formula bushing shell for transformer domesticizes.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of head connector 100 in the utility model;
Fig. 3 is the structural representation of central structure 101 in the utility model;
Fig. 4 is the structural representation of afterbody connector 102 in the utility model;
Wherein, 1 is that voltage equalizing ball, 2 is that cover plate, 3 is that insulating case, 4 is that outer catheter, 5 is that inner catheter, 6 is that the first sealing clamp, 7 is that upper flange, 8 is that voltage divider box, 9 is that the second sealing clamp, 10 is that air relief cock, 11 is that branch sleeve, 12 is that centring ring, 13 is that capacitor core, 14 is that canted coil spring, 15 is that base, 16 is that current-carrying terminal, 100 is that head connector, 101 is that central structure, 102 is afterbody connector.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
With reference to figure 1 and Fig. 2, glue described in the utility model soaks paper high-voltage capacitance formula converter transformer and is provided with successively from inside to outside inner catheter 5, outer catheter 4, capacitor core 13 and insulating case 3 with sleeve pipe, the two ends of inner catheter 5 are separately installed with head connector 100 and afterbody connector 102, capacitor core 13 adopts epoxide-resin glue to soak paper and is prepared from, described insulating case 3 adopts organic composite silicon rubber to be prepared from, one end of inner catheter 5 reaches outside head connector 100, and directly carrying out current-carrying, the other end of inner catheter 5 is connected with current-carrying with afterbody connector 102.
With reference to figure 2 and Fig. 4, described head connector 100 comprises stripper rubber, voltage equalizing ball 1, the pressing plate of axial location inner catheter 5, cover plate 2, cover plate 2 respectively with one end of insulating case 3, one end of one end of outer catheter 4 and capacitor core 13 is fixedly connected with, on cover plate 2, offer the through hole passing for inner catheter 5, the other end of insulating case 3 is connected with central structure 101, central structure 101 is connected on capacitor core 13, the inside of central structure 101 is closed structure, central structure 101 is provided with the upper flange 7 being connected with transformer, upper flange 7 is provided with the flange hole being connected with the flange of transformer, cover plate 2 passes through press seal rubber with axial location inner catheter 5, cover plate 2 is provided with screwed hole, outer catheter 4 outer surfaces are provided with the screw thread matching with described screwed hole, thereby realize the axial location of outer catheter 4.Described afterbody connector 102 comprises centring ring 12, the base 15 being connected with the other end of capacitor core 13 and the other end of outer catheter 4 respectively and is fixed on the current-carrying terminal 16 on base 15, and inner catheter 5 is socketed on current-carrying terminal 16; One end of described inner catheter 5 is closed structure, and the other end is by current-carrying terminal 16 sealing, capacitor core 13 and be arranged between the base 15 of its underpart and be provided with two seals packing ring, seal washer together with base 15 is provided with between current-carrying terminal 16; Current-carrying terminal 16 is fixed on base 15 by screw and lock washer, and is connected with current-carrying with inner catheter 5 by canted coil spring 14; Inner catheter 5 is connected and fixed with base 15; Radially spacing by centring ring 12 between inner catheter 5 and outer catheter 4.
Axial seal between described inner catheter 5 and cover plate 2, axial seal between described outer catheter 4 and cover plate 2, described head connector 100 is considerable for current-carrying structure and hermetically-sealed construction separating treatment, therefore spacing measure is taked at all sealing positions, in order to avoid the excessive compression of sealing ring guarantees that sealing property is reliable.
With reference to figure 3, central structure 101 comprises upper flange 7, branch sleeve 11; The end face of insulating case 3 one end is provided with upper flange 7, on upper flange 7, offers groove, and the end of insulating case 3 is set in described groove, and evenly smears gap by fluid sealant; Capacitor core 13 is provided with projection, and branch sleeve 11 is enclosed within projection; Upper flange 7 is installed in the upside of described projection, and branch sleeve 11 downsides are provided with decometer, and described decometer is installed in the downside of described projection, and upper flange 7 is connected with branch sleeve 11 by set bolt and lock washer.
Described upper flange 7 adopts end face seal structure with branch sleeve 11; The top of upper flange 7 is fixed with the first sealing clamp 6, and the bottom of branch sleeve 11 is fixed with the second sealing clamp 9; Capacitor core 13 and the first sealing clamp 6, the second sealing clamp 9 and branch sleeve 11 all adopt O RunddichtringO to carry out axial seal.
It is as follows with the technical performance index of sleeve pipe that glue described in the utility model soaks paper high-voltage capacitance formula converter transformer:
Rated voltage ± 200kV
Rated current 3200A
60s industrial frequency withstand voltage 588kV
1h power frequency withstand 289kV
Full lightning impulse withstand voltage 1234kV
Switching impulse withstand voltage 1103kV
2h direct current tolerance+393kV
Polarity inversion voltage ± 236kV
Dielectric loss tan δ≤0.6%
Cantilever loading tolerance 3150N
Setting angle is any.
Claims (9)
1. a glue soaks paper high-voltage capacitance formula converter transformer sleeve pipe, it is characterized in that, be provided with successively from inside to outside inner catheter (5), outer catheter (4), capacitor core (13) and insulating case (3), the two ends of inner catheter (5) are separately installed with head connector (100) and afterbody connector (102);
Described head connector (100) comprises the cover plate (2) being fixedly connected with one end of one end of insulating case (3), one end of outer catheter (4) and capacitor core (13) respectively, on cover plate (2), offer the through hole passing for inner catheter (5), the other end of insulating case (3) is connected with central structure (101), central structure (101) is connected on capacitor core (13), the inside of central structure (101) is closed structure, and central structure (101) is provided with the upper flange (7) being connected with transformer;
Described afterbody connector (102) comprises the base (15) being connected with the other end of capacitor core (13) and the other end of outer catheter (4) respectively and is fixed on the current-carrying terminal (16) on base (15), and inner catheter (5) is socketed on current-carrying terminal (16);
One end of described inner catheter (5) is closed structure, and the other end is by current-carrying terminal (16) sealing.
2. glue according to claim 1 soaks paper high-voltage capacitance formula converter transformer sleeve pipe, it is characterized in that, capacitor core (13) adopts epoxide-resin glue to soak paper and is prepared from.
3. glue according to claim 1 soaks paper high-voltage capacitance formula converter transformer sleeve pipe, it is characterized in that, described insulating case (3) adopts organic composite silicon rubber to be prepared from.
4. glue according to claim 1 soaks paper high-voltage capacitance formula converter transformer sleeve pipe, it is characterized in that, described head connector (100) also comprises the pressing plate for axial location inner catheter (5), and pressing plate is fixed on cover plate (2).
5. glue according to claim 4 soaks paper high-voltage capacitance formula converter transformer sleeve pipe, it is characterized in that,
Axial seal between described inner catheter (5) and cover plate (2);
Axial seal between described outer catheter (4) and cover plate (2).
6. glue according to claim 1 soaks paper high-voltage capacitance formula converter transformer sleeve pipe, it is characterized in that, described afterbody connector (102) also comprises canted coil spring (14) and for the centring ring (12) of radially spacing inner catheter (5) and outer catheter (4), centring ring (12) is located between inner catheter (5) and outer catheter (4), and centring ring (12) is socketed on inner catheter (5);
Described canted coil spring (14) is arranged between current-carrying terminal (16) and inner catheter (5).
7. glue according to claim 1 soaks paper high-voltage capacitance formula converter transformer sleeve pipe, it is characterized in that, the outer surface of described capacitor core (13) is provided with projection, central structure (101) is provided with the branch sleeve (11) being socketed in described projection and upper flange (7) and the decometer being connected with branch sleeve (11) two ends respectively, the end face of insulating case (3) one end is connected with upper flange (7), upper flange (7) and decometer are installed in respectively the both sides of described projection, and upper flange (7) is provided with the flange hole for connection transformer.
8. glue according to claim 7 soaks paper high-voltage capacitance formula converter transformer sleeve pipe, it is characterized in that,
The upper fluting of described upper flange (7), insulating case (3) is embedded in described groove;
End face seal between described upper flange (7) and branch sleeve (11);
Axial seal between the inwall of described branch sleeve (11) and capacitor core (13).
9. glue according to claim 7 soaks paper high-voltage capacitance formula converter transformer sleeve pipe, it is characterized in that, voltage divider box (8) is housed on described branch sleeve (11), for the dielectric loss of measuring capacitance in real time fuse (13), office, puts and the measurement mechanism of capacitance and the air relief cock (10) of central structure being exitted during for oiling transformer, voltage divider box is equipped with voltage divider in (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320598909.2U CN203481018U (en) | 2013-09-26 | 2013-09-26 | Resin-impregnated paper high-voltage capacitance bushing for converter transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320598909.2U CN203481018U (en) | 2013-09-26 | 2013-09-26 | Resin-impregnated paper high-voltage capacitance bushing for converter transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203481018U true CN203481018U (en) | 2014-03-12 |
Family
ID=50229301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320598909.2U Expired - Lifetime CN203481018U (en) | 2013-09-26 | 2013-09-26 | Resin-impregnated paper high-voltage capacitance bushing for converter transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203481018U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104505785A (en) * | 2014-12-17 | 2015-04-08 | 国家电网公司 | Ultrahigh-voltage direct current wall bushing center conductive pipe assembly |
| CN104821214A (en) * | 2015-04-14 | 2015-08-05 | 苏州翰为电气科技有限公司 | Solid insulation terminal for liquid-immersed electric power equipment leading-out line |
| CN105869859A (en) * | 2016-05-16 | 2016-08-17 | 江苏神马电力股份有限公司 | Tail end structure and transformer bushing provided with tail end structure |
| CN106783082A (en) * | 2016-12-09 | 2017-05-31 | 徐超 | A kind of oil immersed type capacitance graded bushing |
| WO2022166821A1 (en) * | 2021-02-08 | 2022-08-11 | 江苏神马电力股份有限公司 | Transformer bushing |
-
2013
- 2013-09-26 CN CN201320598909.2U patent/CN203481018U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104505785A (en) * | 2014-12-17 | 2015-04-08 | 国家电网公司 | Ultrahigh-voltage direct current wall bushing center conductive pipe assembly |
| CN104821214A (en) * | 2015-04-14 | 2015-08-05 | 苏州翰为电气科技有限公司 | Solid insulation terminal for liquid-immersed electric power equipment leading-out line |
| CN105869859A (en) * | 2016-05-16 | 2016-08-17 | 江苏神马电力股份有限公司 | Tail end structure and transformer bushing provided with tail end structure |
| CN106783082A (en) * | 2016-12-09 | 2017-05-31 | 徐超 | A kind of oil immersed type capacitance graded bushing |
| WO2022166821A1 (en) * | 2021-02-08 | 2022-08-11 | 江苏神马电力股份有限公司 | Transformer bushing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: XI'AN XD HIGH VOLIAGE BUSHING CO.,LTD. Assignor: CHINA XD ELECTRIC Co.,Ltd. Contract record no.: 2015610000058 Denomination of utility model: Resin-impregnated paper high-voltage capacitance bushing for converter transformer Granted publication date: 20140312 License type: Exclusive License Record date: 20150528 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160921 Address after: 710075 Shaanxi city of Xi'an Province Tang Hing Road No. 7 Patentee after: CHINA XD ELECTRIC Co.,Ltd. Patentee after: XI'AN XD HIGH VOLIAGE BUSHING CO.,LTD. Address before: 710075 Shaanxi city of Xi'an Province Tang Hing Road No. 7 Patentee before: CHINA XD ELECTRIC Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20140312 |
|
| CX01 | Expiry of patent term |