CN106981359B - One kind ± 1100kV line filter reactor pressure-equalizing device - Google Patents

One kind ± 1100kV line filter reactor pressure-equalizing device Download PDF

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Publication number
CN106981359B
CN106981359B CN201710325068.0A CN201710325068A CN106981359B CN 106981359 B CN106981359 B CN 106981359B CN 201710325068 A CN201710325068 A CN 201710325068A CN 106981359 B CN106981359 B CN 106981359B
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China
Prior art keywords
grading ring
segmented
starframe
support
line filter
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CN201710325068.0A
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CN106981359A (en
Inventor
余军
郭贤珊
乐波
陈东
祝全乐
付颖
周广东
杨宏吉
卢理成
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State Grid Corp of China SGCC
State Grid Economic and Technological Research Institute
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State Grid Corp of China SGCC
State Grid Economic and Technological Research Institute
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/34Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/40Structural association with built-in electric component, e.g. fuse
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/40Structural association with built-in electric component, e.g. fuse
    • H01F27/402Association of measuring or protective means

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Abstract

The present invention relates to one kind ± 1100kV line filter reactor pressure-equalizing devices, field strength for shielded line filter reactance device ontology, it is characterised in that it includes the first~the second starframe, the first~the 7th segmented grading ring and the first~the second grading ring bracket;Line filter reactor body bottom and top are respectively fixedly connected with the first~the second starframe;The the first~the second grading ring bracket is respectively fixedly connected on the outside of the first~the second starframe;Third~the 4th segmented grading ring is respectively sleeved at line filter reactor body lower part, and third~the 4th segmented grading ring respectively to the first grading ring frame bottom and top is corresponding is fixedly connected;5th~the 6th segmented grading ring is respectively sleeved at line filter reactor body top, and the 5th~the 7th segmented grading ring respectively to the second grading ring frame bottom, middle part and top is corresponding is fixedly connected, invention can be widely used in technical field of ultrahigh voltage direct current.

Description

One kind ± 1100kV line filter reactor pressure-equalizing device
Technical field
The present invention relates to one kind ± 1100kV line filter reactor pressure-equalizing devices, belong to extra-high voltage direct-current transmission Technical field.
Background technique
From the national conditions of China, the Chinese central and east and coastal area need a large amount of power supply, need from China The northwestward is to coastal region in east China long distance powedr transmission, and UHV transmission has that transmission capacity is big, power transmission distance, line loss The low and small advantage of occupied area, is the first choice of current grid power transmission engineering.
As one of element required in UHV transmission line, it is defeated that line filter reactor is connected on extra-high voltage direct-current Filter branch is collectively constituted with capacitor on the polar curve of electric line, the harmonic wave in DC power transmission line can be filtered out.Highest at present Voltage class is up to 1100kV, since the rice cabinet frame structure of line filter reactor inherently makes line filter reactor There are portion tip, in tip location, then there is corona discharge when electric field strength is higher than gas discharge voltage, to surrounding other The operation of equipment, which is formed, to be threatened, and the normal operation of entire transmission line of electricity is influenced, meanwhile, the pillar of line filter reactor body Insulator high pressure side flange and line filter reactor rice cabinet frame equipotential, there are excessively high electric potential gradients for flange surface, need Support insulator surface field is shielded, reduce surface field, anti-stop is swooned and flashover.
Summary of the invention
In view of the above-mentioned problems, the object of the present invention is to provide one kind to be able to solve because line filter reactor body is intrinsic There are ± 1100kV line filter reactor the pressure-equalizing devices of corona discharge caused by the wedge angle of part for rice cabinet frame structure.
To achieve the above object, the present invention takes following technical scheme: one kind ± 1100kV line filter reactor is used Pressure-equalizing device, the field strength for shielded line filter reactance device ontology, which is characterized in that the pressure-equalizing device includes the first~the Two starframes, the first~the 7th segmented grading ring and the first~the second grading ring bracket;The line filter reactor Body bottom portion is accordingly fixedly connected with first starframe and the second starframe with top respectively, and first starframe bottom is solid Surely several support insulators are connected, described first is fixedly connected with inside on the outside of each support insulator high-pressure side and is segmented Formula grading ring and the second segmented grading ring;Described first is respectively fixedly connected on the outside of first starframe and the second starframe Grading ring bracket and the second grading ring bracket;The third segmented grading ring and the 4th segmented grading ring are respectively sleeved at institute State line filter reactor body lower part, and the third segmented grading ring and the 4th segmented grading ring respectively with it is described First grading ring frame bottom is accordingly fixedly connected with top;The 5th segmented grading ring and the 6th segmented grading ring point It is not set in line filter reactor body top, and the 5th segmented grading ring, the 6th segmented grading ring With the 7th segmented grading ring respectively to the second grading ring frame bottom, middle part and top is corresponding is fixedly connected.
Further, first starframe and the second starframe include a central axis and several connecting rods, each described The equal spaced radial of central axis connects one end of each connecting rod.
Further, the first segmented grading ring and the second segmented grading ring include and the post insulator subnumber Identical several curved opening rings are measured, the third~the 7th segmented grading ring includes and the described first/or second star The identical several curved opening rings of the connecting rod quantity of frame, the open side of each curved opening ring are fixedly connected with phase Answer the support insulator, the first grading ring bracket or the second grading ring bracket.
Further, each curved opening ring both ends are hemispherical, and the caliber of each curved opening ring is 300mm。
Further, the first grading ring bracket includes identical with the connecting rod quantity of first starframe several One support frame, each first support frame are fixedly connected with the other end of a connecting rod, each first support frame Bottom extends downwardly first branch's support for fixing the third segmented grading ring, each first support frame top Portion upwardly extends first branch support for fixing the 4th segmented grading ring.
Further, the second grading ring bracket includes identical with the connecting rod quantity of second starframe several Two support frames, each second support frame are fixedly connected with the connecting rod other end, each second support frame bottom Portion extends downwardly first branch support for fixing the 5th segmented grading ring, each second support frame Outside extends first branch support for fixing the 6th segmented grading ring upwards on top, and each described second Inside extends second branch's support for fixing the 7th segmented grading ring upwards at the top of support frame.
Further, the diameter of the 7th segmented grading ring is less than the diameter of the 6th segmented grading ring, and institute The center of the 7th segmented grading ring and the 6th segmented grading ring is stated away from for 300mm.
The invention adopts the above technical scheme, which has the following advantages: 1, the present invention is due to being provided with third~the Seven segmented grading rings press line filter reactor body by this five layers equal laminated structure, line filter electricity Anti- device body lower part setting third segmented grading ring and the 4th segmented grading ring, cooperate in line filter reactor body 5th~the 7th segmented grading ring of portion's setting keeps field distribution more uniform, can be avoided in line filter reactor sheet Closure becket, more preferably improvement field distribution are formed in the high-intensity magnetic field of body, are realized equalizing effect, are solved because of line filter reactance There is corona discharge caused by the wedge angle of part in the intrinsic rice cabinet frame structure of device ontology.2, the present invention is by matching support insulator The first segmented grading ring and the second segmented grading ring are set, on the outside of support insulator and inside is fixedly connected with the first segmentation Formula grading ring and the second segmented grading ring make electric field strength on the inside of line filter reactor body lower part and support insulator The effect that is uniformly distributed become apparent from, can be widely applied in technical field of ultrahigh voltage direct current.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention;
Fig. 2 is the inside top schematic diagram of Fig. 1 line filter reactor body;
Fig. 3 is the schematic top plan view of Fig. 1;
Fig. 4 is the partial structural diagram of the first starframe and the first grading ring bracket of the invention;
Fig. 5 is the partial structural diagram of the second starframe and the second grading ring bracket of the invention.
Specific embodiment
Come to carry out detailed description to the present invention below in conjunction with attached drawing.It should be appreciated, however, that attached drawing has been provided only more Understand the present invention well, they should not be interpreted as limitation of the present invention.In the description of the present invention, it is to be understood that, Term " first ", " second " etc. are only used for the purpose of description, are not understood to indicate or imply relative importance.
As shown in Figures 1 to 3, ± 1100kV line filter reactor provided by the invention with pressure-equalizing device include first~ Second starframe 1~2, the 3, first~the 7th segmented grading ring 4~10 of support insulator and the first~the second grading ring bracket 11~12.
13 bottom and top of line filter reactor body are accordingly fixedly connected with the first starframe 1 and the second star respectively Frame 2,1 bottom of the first starframe are fixedly connected with four support insulators 3 for being used to support line filter reactor body 13, often On the outside of one support insulator, 3 high-pressure side and inside is fixedly connected with the first segmented grading ring 4 and the second segmented grading ring 5, First segmented grading ring 4 and the second segmented grading ring 5 are for shielding 3 high-pressure side of support insulator and line filter reactance The field strength of 13 lower part of device ontology.
It is equal that the first grading ring bracket 11 and second is accordingly fixedly connected on the outside of first starframe 1 and the second starframe 2 respectively Pressure ring bracket 12.Third segmented grading ring 6 and the 4th segmented grading ring 7 with 13 lower part of line filter reactor body It is arranged fixation, and third segmented grading ring 6 and 7 inside of the 4th segmented grading ring and 11 bottom of the first grading ring bracket and top Portion, which respectively corresponds, to be fixedly connected, and third segmented grading ring 6 and the 4th segmented grading ring 7 are used for shielded line filter reactance The field strength of 13 lower part of device ontology, the first grading ring bracket 11 is for making third segmented grading ring 6 and the 4th segmented grading ring 7 Equipotential link is formed with line filter reactor body 13.
5th segmented grading ring 8 and the 6th segmented grading ring 9 are covered with 13 top of line filter reactor body If it is fixed, and bottom, middle part and the top part of the 5th~the 7th segmented grading ring 8~10 inside and the second grading ring bracket 12 It Dui Ying not be fixedly connected, the 5th~the 7th segmented grading ring 8~10 is used for 13 top of shielded line filter reactance device ontology Field strength, the second grading ring bracket 12 is for making the 5th~the 7th segmented grading ring 8~10 and line filter reactor sheet Body 13 forms equipotential link.
In a preferred embodiment, if the first starframe 1 and the second starframe 2 include a central axis 14 and involvement Extension bar 15, the equal spaced radial of each central axis 14 connect one end of each connecting rod 15.
In a preferred embodiment, between the first segmented grading ring 4 and the second segmented grading ring 5 include annular Every several curved opening rings 16 identical with 3 quantity of support insulator of setting, third~the 7th segmented grading ring 4~10 is Including several curved opening rings 16 identical with 15 quantity of connecting rod of the first/or second starframe 1, each curved opening ring 16 Both ends are hemispherical, and the open side (curved side) of each curved opening ring 16 is fixedly connected with a respective strut insulator 3, One grading ring bracket 11 or the second grading ring bracket 12.
In a preferred embodiment, the caliber of each curved opening ring 16 all can be 300mm, and curved opening ring The size of 16 calibers can be configured according to the case where specific line filter reactor body 13.
In a preferred embodiment, the diameter of the 7th segmented grading ring 10 can be less than the 6th segmented grading ring 9 diameter, and the center of the 7th segmented grading ring 10 and the 6th segmented grading ring 9 is away from can be 300mm.
As shown in figure 4, the first grading ring bracket 11 includes identical with 15 quantity of connecting rod of the first starframe 1 several One support frame 17, every one first support frame 17 are fixedly connected with 15 other end of a connecting rod, and every one first support frame, 17 bottom is equal First branch's support 18 for fixing third segmented grading ring 6 is extended downwardly, every one first support frame, 17 top is upward Extend first branch's support 18 for fixing the 4th segmented grading ring 7.
As shown in figure 5, the second grading ring bracket 12 includes identical with 15 quantity of connecting rod of the second starframe 2 several Two support frames 19, every one second support frame 19 are fixedly connected with 15 other end of a connecting rod, and every one second support frame, 19 bottom is equal First branch's support 18 for fixing the 5th segmented grading ring 8 is extended downwardly, every one second support frame, 19 top is upward Outside extends first branch's support 18 for fixing the 6th segmented grading ring 9, and every one second support frame, 19 top is upward Inside extends second branch's support 20 for fixing the 7th segmented grading ring 10.
The various embodiments described above are merely to illustrate the present invention, wherein the structure of each component, connection type and manufacture craft etc. are all It can be varied, all equivalents and improvement carried out based on the technical solution of the present invention should not exclude Except protection scope of the present invention.

Claims (3)

1. one kind ± 1100kV line filter reactor pressure-equalizing device, the field for shielded line filter reactance device ontology By force, which is characterized in that the pressure-equalizing device include the first~the second starframe, the first~the 7th segmented grading ring and first~ Second grading ring bracket;
Line filter reactor body bottom and top are accordingly fixedly connected with first starframe and the second star respectively Shape frame, first starframe bottom are fixedly connected with several support insulators, and each support insulator high-pressure side outside is solid Surely the first segmented grading ring is connected, the second segmented is fixedly connected on the inside of each support insulator high-pressure side and presses Ring;
The first grading ring bracket and the second grading ring are respectively fixedly connected on the outside of first starframe and the second starframe Bracket;The third segmented grading ring and the 4th segmented grading ring are respectively sleeved at the line filter reactor body Lower part, and the third segmented grading ring and the 4th segmented grading ring respectively with the first grading ring frame bottom and top Portion is accordingly fixedly connected;The 5th segmented grading ring and the 6th segmented grading ring are respectively sleeved at the line filter Reactor body top, and the 5th segmented grading ring, the 6th segmented grading ring and the 7th segmented grading ring difference To the second grading ring frame bottom, middle part and top is corresponding is fixedly connected;
First starframe and the second starframe include a central axis and several connecting rods, and each central axis is radial Interval connects one end of each connecting rod;
The diameter of the 7th segmented grading ring is less than the diameter of the 6th segmented grading ring, and the 7th segmented The center of grading ring and the 6th segmented grading ring is away from for 300mm;
The first grading ring bracket includes several first support frames identical with the connecting rod quantity of first starframe, often One first support frame is fixedly connected with the other end of a connecting rod, and each first support frame bottom is to downward First branch's support for fixing the third segmented grading ring is stretched, is upwardly extended at the top of each first support frame For fixing first branch support of the 4th segmented grading ring;
The second grading ring bracket includes several second support frames identical with the connecting rod quantity of second starframe, often One second support frame is fixedly connected with the connecting rod other end, and each second support frame bottom extends downwardly For fixing first branch support of the 5th segmented grading ring, each second support frame top is outer upwards Side extends first branch support for fixing the 6th segmented grading ring, and each second support frame top is Inside extends second branch's support for fixing the 7th segmented grading ring upwards.
2. one kind ± 1100kV line filter reactor pressure-equalizing device as described in claim 1, which is characterized in that described First segmented grading ring and the second segmented grading ring include that several arcs identical with the support insulator quantity are opened Choma, the third~the 7th segmented grading ring include identical with the connecting rod quantity of the first or second starframe Several curved opening rings, the open side of each curved opening ring are fixedly connected with the corresponding support insulator, the One grading ring bracket or the second grading ring bracket.
3. one kind ± 1100kV line filter reactor pressure-equalizing device as claimed in claim 2, which is characterized in that each Curved opening ring both ends are hemispherical, and the caliber of each curved opening ring is 300mm.
CN201710325068.0A 2017-05-10 2017-05-10 One kind ± 1100kV line filter reactor pressure-equalizing device Active CN106981359B (en)

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005347586A (en) * 2004-06-04 2005-12-15 Ushio Inc Winding equipment, high-voltage pulse generator using the same, and discharge-excited pump laser device provided with pulse generator
CN101013626A (en) * 2006-12-15 2007-08-08 特变电工沈阳变压器集团有限公司技术中心 Dry-type reactor
CN101325125A (en) * 2008-04-15 2008-12-17 南方电网技术研究中心 Pressure-equalizing device for extra-high voltage dry type smoothing reactor
CN201226283Y (en) * 2008-04-15 2009-04-22 南方电网技术研究中心 Apparatus for equalizing voltage of extra-high voltage DC post insulator
CN201315215Y (en) * 2008-10-13 2009-09-23 天津水利电力机电研究所 Corona resistant device of 750kV line wave trapper
CN201549353U (en) * 2009-03-24 2010-08-11 南方电网技术研究中心 Voltage-equalizing device of extra-high voltage dry-type smoothing reactor
CN202512986U (en) * 2011-12-31 2012-10-31 山东金人电气有限公司 110kV-level dry-type hollow series reactor
CN204732269U (en) * 2015-06-19 2015-10-28 扬州市鑫源电气有限公司 A kind of high voltage low-pass filtering reactor
CN206726929U (en) * 2017-05-10 2017-12-08 国家电网公司 One kind ± 1100kV line filter reactor pressure-equalizing devices

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005347586A (en) * 2004-06-04 2005-12-15 Ushio Inc Winding equipment, high-voltage pulse generator using the same, and discharge-excited pump laser device provided with pulse generator
CN101013626A (en) * 2006-12-15 2007-08-08 特变电工沈阳变压器集团有限公司技术中心 Dry-type reactor
CN101325125A (en) * 2008-04-15 2008-12-17 南方电网技术研究中心 Pressure-equalizing device for extra-high voltage dry type smoothing reactor
CN201226283Y (en) * 2008-04-15 2009-04-22 南方电网技术研究中心 Apparatus for equalizing voltage of extra-high voltage DC post insulator
CN201315215Y (en) * 2008-10-13 2009-09-23 天津水利电力机电研究所 Corona resistant device of 750kV line wave trapper
CN201549353U (en) * 2009-03-24 2010-08-11 南方电网技术研究中心 Voltage-equalizing device of extra-high voltage dry-type smoothing reactor
CN202512986U (en) * 2011-12-31 2012-10-31 山东金人电气有限公司 110kV-level dry-type hollow series reactor
CN204732269U (en) * 2015-06-19 2015-10-28 扬州市鑫源电气有限公司 A kind of high voltage low-pass filtering reactor
CN206726929U (en) * 2017-05-10 2017-12-08 国家电网公司 One kind ± 1100kV line filter reactor pressure-equalizing devices

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