CN202736630U - Hollow split electric reactor - Google Patents
Hollow split electric reactor Download PDFInfo
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- CN202736630U CN202736630U CN 201220373229 CN201220373229U CN202736630U CN 202736630 U CN202736630 U CN 202736630U CN 201220373229 CN201220373229 CN 201220373229 CN 201220373229 U CN201220373229 U CN 201220373229U CN 202736630 U CN202736630 U CN 202736630U
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- 238000004804 winding Methods 0.000 claims abstract description 95
- 238000009413 insulation Methods 0.000 claims abstract description 10
- 238000007789 sealing Methods 0.000 claims description 9
- 239000004020 conductor Substances 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- 239000004411 aluminium Substances 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 230000004888 barrier function Effects 0.000 claims description 3
- 230000004907 flux Effects 0.000 abstract description 9
- 230000006698 induction Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
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Abstract
The utility model discloses a hollow split electric reactor which comprises an insulation post, a first winding, a second winding. The first winding and the second winding are installed on the insulation post coaxially. Envelops of each winding are arranged at intervals from the inside to the outside, and the two ends of a wire of each winding are respectively a current leading-in end and a current leading-out end. The envelopes of the first winding and the envelopes of the second winding are arranged in sequence in a crossed mode from the inside to the outside to, and thus a coil with magnetic flux directions of the two windings exactly opposite is formed. Two arrangement forms of the coil includes: first, the two windings are arranged in the same winding direction, and the current leading-in ends are respectively arranged at the two ends of the coil; second, the two windings are arranged in the same winding direction, and the current leading-in ends are all arranged at the same ends of the coil. The magnetic flux directions of the two windings are exactly opposite, and a large amount of the magnetic flux of the two windings can be offset by each other. Thereby, the coefficient of mutual induction is greatly increased, and voltage loss of the electric reactor and line loss are reduced.
Description
Technical field
The utility model relates to a kind of hollow split reactor, belongs to the reactor technical field.
Background technology
Reactor also is inductor, and its essence on electric circuit provides inductance value.Compare iron-core reactor and may play the saturated inductance value variation that causes unshakable in one's determination by the outlet high-current leading, the inductance value of hollow split reactor is only relevant with overall dimension, the number of turn and connected mode, in the situation that the constant inductance value of above-mentioned condition is a constant, irrelevant with the electric current that is led to, therefore the linearity of air core reactor is better, has widely use occasion.
Hollow split reactor is a kind of of current limiting reactor, two parts winding of conventional hollow split reactor separates, generally be 1 electric current leading-in end at middle, two electric current exits respectively topmost and bottom, compare the current limiting reactor of common single winding, the loss of voltage is little when having normal operation, and the large characteristics of Short Circuit withstand current capacity during short circuit.A kind of air core reactor is disclosed such as Chinese patent CN201812657U, be provided with two upper and lower windings of arranging up and down on this reactor insulation column, upper and lower winding is fixedly connected with by adjustable plate, and the upper terminal of the lower terminal of upper winding, lower winding all conducts electricity with adjustable plate and is connected; Periphery at upper and lower winding is respectively equipped with upper and lower wire turn, is respectively equipped with three tap lead plates on the upper and lower wire turn, and three lead plates form respectively three taps of upper and lower winding.Wherein, the wire in the sealing of upper and lower winding is by the parallel conducting wire coiled, and upper and lower wire turn is aluminium stranded conductor.The air core reactor of this two winding separate structures, coefficient of mutual inductance each other is less, be generally between 0.2 ~ 0.5 according to the different structure size, the normal loss of voltage on reactor that uses is still more considerable, be generally 0.5 ~ 0.8 times of common current limiting reactor, but still have the loss of voltage; In order to offset the loss of voltage on the reactor, the transformer of circuit need improve voltage, still produces than lossy on the line.
The utility model content
The novel purpose of this reality provides the large hollow split reactor of a kind of coefficient of mutual inductance, in order to the loss of voltage on the hollow split reactor of further reduction, and then reduces line loss.
The utility model adopts following technical scheme: a kind of hollow split reactor, the first winding and the second winding that comprise insulation column and be installed in the coaxial setting on the insulation column, the interval of sealing from inside to outside of each winding arranges, and the wire two ends of each winding are respectively electric current leading-in end and electric current exit, described the first winding respectively seal with the second winding respectively seal from inside to outside successively formation arranged in a crossed manner so that the flow direction of two windings opposite coil just in time, two kinds of collocation forms of coil are: the first is that the coiling direction of two windings is identical, the electric current leading-in end is arranged in respectively the two ends of coil, and the second is that the coiling direction of two windings is identical, the electric current leading-in end all is arranged in the same end of coil.
The wire of the wire of described the first winding and the second winding is the individual layer aluminium stranded conductor, and the medial and lateral of sealing of two windings are equipped with the insulating barrier of being made by the DMD material
The upper end of described coil is fixed with respectively the first lead-in line row that two spaced radials electric current leading-in ends conduction that arrange and the first winding is connected and conducts electricity the second outlet row that is connected with the electric current exit of the second winding, the lower end of described coil is fixed with respectively the first lead-in line row that two spaced radials electric current leading-in ends conduction that arrange and the second winding is connected and conducts electricity the first outlet row that is connected with the electric current end tab of the first winding, conduction is connected with short circuit row between first, second lead-in line row, and the upper conduction of described short circuit row is connected with total input-wire row.
Described first, second lead-in line row is arranged at the same side of coil, and first, second outlet row is arranged at the opposite side of coil.
The below of described coil is provided with the air blast that air outlet covers at the coil lower end.
Adopt the hollow split reactor of said structure, because the first winding is respectively sealed successively arranged in a crossed manner the formation so that the flow direction of two windings opposite coil just in time of respectively sealing from inside to outside with the second winding, according to the magnetic flux right-hand rule, the direction of magnetic flux is determined by coiling direction and the sense of current of guiding, therefore, the collocation form of two windings has two kinds: a kind of is in the same way coiling, current opposite in direction, another kind is reverse coiling, the sense of current is identical, the magnetic flux of two windings is just in time opposite, the major part of can cancelling out each other, thereby greatly improve coefficient of mutual inductance, thereby reduce the loss of voltage on the reactor, reduce line loss.
Description of drawings
Fig. 1 is example structure schematic diagram of the present utility model;
Fig. 2 is the partial sectional view of the coil among Fig. 1;
Fig. 3 is the electrical connection schematic diagram among Fig. 1.
Embodiment
The embodiment of the hollow split reactor of the utility model: such as Fig. 1, Fig. 2, shown in Figure 3, on the insulation column 8 of this reactor coil 6 is installed, coil 6 is made of the first winding and second winding of coaxial setting, respectively sealing with respectively sealing of the second winding of described the first winding is arranged in a crossed manner successively from inside to outside, and namely the odd-level of coil 6 is sealed formation the first winding, even level is sealed and consisted of the second winding.The wire 10 of the first winding and the second winding all adopts aluminium stranded conductor, two windings turn to cylindric by the individual layer aluminium stranded conductor in the same way, adopt in the same way coiling, the electric current leading-in end of the first winding is introduced by the upper end of coil 6, the electric current exit is drawn by the lower end of coil 6, the electric current leading-in end of the second winding is introduced by the lower end of coil, the electric current exit is drawn by the upper end of coil, when carrying electric current to the electric current leading-in end of two windings so simultaneously, the sense of current of two windings is just in time opposite, according to the magnetic flux right-hand rule, the magnetic flux that two windings produce after by the electric current major part of cancelling out each other, thus coefficient of mutual inductance greatly improved; Simultaneously, compare conventional multilayer and around round conductor, the individual layer technique for coiling is simpler.Because sealing of two windings is cross arrangement, for guaranteeing the dielectric voltage withstand requirement, the interior outside of first, second winding all is lined with the insulating barrier 11 of being made by the DMD material, and the DMD material has high withstand voltage properties.
For the ease of the electric current leading-in end conveying electric current of while to two windings, be welded with the first lead-in line row 4 and the second outlet row 5 that arranges along the coil spaced radial in the upper end of coil 6, the first lead-in line row 4 is connected with the electric current leading-in end conduction of the first winding, and the second outlet row 5 is connected with the electric current exit conduction of the second winding; Be welded with respectively the second lead-in line row 1 and the first outlet row 7 in the lower end of coil 6, described the second lead-in line row 1 is connected with the electric current leading-in end conduction of the second winding, and the first outlet row 7 is connected with the electric current exit conduction of the first winding; The first lead-in line row 4 and the second lead-in line row 1 are positioned at the same side of coil 6, and such the first outlet row 7 and the second outlet row 5 are positioned at the opposite side of coil 6.Link together by short circuit row 3 conductions between the first lead-in line row 4 and the second lead-in line row 1, conduction is connected with total input-wire row 2 on the short circuit row 3.The spacing of the first lead-in line row and the second outlet row will guarantee certain distance, to satisfy the clean safe distance of electrified body, the 10kV product is not less than 125mm, the 35kV product is not less than 300mm, and 66kV is not less than 550mm, and the spacing of same the second lead-in line row and the first outlet row also must meet the demands.Described insulation column 8 respectively with the second lead-in line row 1 and the first outlet row 7 apical graftings, whole coil 6 is supported on the insulation column 8.
Also be provided with air blast 9 below coil 6, the air outlet of air blast 9 covers at the lower end of coil 6, can carry out air blast cooling to the first winding and the second winding like this, reduces the temperature rise of two windings.
During above-described embodiment specific works, after passing into electric current to total input-wire row 2, electric current enters respectively the first lead-in line row 4 and the second lead-in line row 1, as shown in Figure 3, the sense of current of the sense of current of the first winding and the second winding is just in time opposite, and by the mutually most of counteracting of magnetic flux that produces behind the electric current, coefficient of mutual inductance is greater than 0.9, the coefficient of mutual inductance of conventional hollow split reactor improves a lot, and has reduced the loss of voltage; Simultaneously, air blast 9 provides air-cooled for two windings, reduces the temperature rise of two windings.
In above-described embodiment, the wire of first, second winding adopts in the same way coiling, in order to guarantee to have opposite electric current, the electric current leading-in end of two windings must be arranged on the two ends of coil, in other embodiments, the wire of first, second winding also can adopt reverse coiling, simultaneously the electric current leading-in end of two windings is arranged on the same end of coil, can realize that also two windings have opposite electric current.
Claims (5)
1. hollow split reactor, the first winding and the second winding that comprise insulation column and be installed in the coaxial setting on the insulation column, the interval of sealing from inside to outside of each winding arranges, and the wire two ends of each winding are respectively electric current leading-in end and electric current exit, it is characterized in that: described the first winding respectively seal with the second winding respectively seal from inside to outside successively formation arranged in a crossed manner so that the flow direction of two windings opposite coil just in time, two kinds of collocation forms of coil are: the first is that the coiling direction of two windings is identical, the electric current leading-in end is arranged in respectively the two ends of coil, and the second is that the coiling direction of two windings is identical, the electric current leading-in end all is arranged in the same end of coil.
2. hollow split reactor according to claim 1, it is characterized in that: the wire of the wire of described the first winding and the second winding is the individual layer aluminium stranded conductor, and the medial and lateral of sealing of two windings are equipped with the insulating barrier of being made by the DMD material.
3. hollow split reactor according to claim 2, it is characterized in that: the upper end of described coil is fixed with respectively the first lead-in line row that two spaced radials electric current leading-in ends conduction that arrange and the first winding is connected and conducts electricity the second outlet row that is connected with the electric current exit of the second winding, the lower end of described coil is fixed with respectively the first lead-in line row that two spaced radials electric current leading-in ends conduction that arrange and the second winding is connected and conducts electricity the first outlet row that is connected with the electric current end tab of the first winding, first, conduction is connected with short circuit row between the second lead-in line row, and the upper conduction of described short circuit row is connected with total input-wire row.
4. hollow split reactor according to claim 3, it is characterized in that: described first, second lead-in line row is arranged at the same side of coil, and first, second outlet row is arranged at the opposite side of coil.
5. the described hollow split reactor of any one according to claim 1-4, it is characterized in that: the below of described coil is provided with the air blast that air outlet covers at the coil lower end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220373229 CN202736630U (en) | 2012-07-31 | 2012-07-31 | Hollow split electric reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220373229 CN202736630U (en) | 2012-07-31 | 2012-07-31 | Hollow split electric reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202736630U true CN202736630U (en) | 2013-02-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220373229 Expired - Fee Related CN202736630U (en) | 2012-07-31 | 2012-07-31 | Hollow split electric reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202736630U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103840442A (en) * | 2014-03-12 | 2014-06-04 | 中国科学院电工研究所 | Short-circuit fault current limiter |
| CN104124043A (en) * | 2014-06-26 | 2014-10-29 | 国家电网公司 | Casting type split reactor |
| CN105428040A (en) * | 2015-11-30 | 2016-03-23 | 许继集团有限公司 | Iron core-type split reactor |
| CN105428003A (en) * | 2015-11-30 | 2016-03-23 | 许继集团有限公司 | Hollow core splitting reactor |
| CN106449067A (en) * | 2016-10-28 | 2017-02-22 | 许继集团有限公司 | Oil-immersed type split reactor |
| CN111384709A (en) * | 2020-03-09 | 2020-07-07 | 中国科学院电工研究所 | High-voltage high-capacity split reactance type current limiter |
-
2012
- 2012-07-31 CN CN 201220373229 patent/CN202736630U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103840442A (en) * | 2014-03-12 | 2014-06-04 | 中国科学院电工研究所 | Short-circuit fault current limiter |
| CN103840442B (en) * | 2014-03-12 | 2016-08-17 | 中国科学院电工研究所 | A kind of short-circuit fault current limiter |
| CN104124043A (en) * | 2014-06-26 | 2014-10-29 | 国家电网公司 | Casting type split reactor |
| CN105428040A (en) * | 2015-11-30 | 2016-03-23 | 许继集团有限公司 | Iron core-type split reactor |
| CN105428003A (en) * | 2015-11-30 | 2016-03-23 | 许继集团有限公司 | Hollow core splitting reactor |
| CN106449067A (en) * | 2016-10-28 | 2017-02-22 | 许继集团有限公司 | Oil-immersed type split reactor |
| CN111384709A (en) * | 2020-03-09 | 2020-07-07 | 中国科学院电工研究所 | High-voltage high-capacity split reactance type current limiter |
| CN111384709B (en) * | 2020-03-09 | 2022-04-26 | 中国科学院电工研究所 | High-voltage high-capacity split reactance type current limiter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130213 Termination date: 20200731 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |