CN110047692B - Three-phase common-box arranged electric switch - Google Patents
Three-phase common-box arranged electric switch Download PDFInfo
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- CN110047692B CN110047692B CN201910290345.8A CN201910290345A CN110047692B CN 110047692 B CN110047692 B CN 110047692B CN 201910290345 A CN201910290345 A CN 201910290345A CN 110047692 B CN110047692 B CN 110047692B
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- conductor
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- phase conductor
- display sensor
- intermediate phase
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- 241000208199 Buxus sempervirens Species 0.000 title claims description 13
- 239000004020 conductor Substances 0.000 claims abstract description 238
- 239000012212 insulator Substances 0.000 claims description 22
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract description 4
- 238000011031 large-scale manufacturing process Methods 0.000 abstract description 4
- 238000005259 measurement Methods 0.000 description 7
- 238000003754 machining Methods 0.000 description 6
- 230000005684 electric field Effects 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000016507 interphase Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
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- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
- Switch Cases, Indication, And Locking (AREA)
Abstract
The invention relates to an electric switch arranged in a three-phase common box and a middle phase conductor assembly thereof, wherein the electric switch arranged in the three-phase common box comprises a shell, three-phase conductors arranged in a straight line are arranged in the shell, each three-phase conductor comprises a middle phase conductor and side phase conductors arranged on two sides of the middle phase conductor, a middle phase live display sensor used for detecting the voltage state of the middle phase conductor is arranged on the shell, and a conductor protruding out of the plane where the three-phase conductors are arranged towards the middle phase live display sensor is arranged on the middle phase conductor. The conductive body is arranged on the intermediate phase conductor, so that the distance between the intermediate phase conductor and the intermediate phase electrified display sensor is reduced, the interference of the side phase conductor to the intermediate phase electrified display sensor is avoided, the accurate detection of the voltage state of the intermediate phase electrified display sensor to the intermediate phase conductor is realized, the structure is simple, and the large-scale production is facilitated.
Description
Technical Field
The invention relates to an electrical switch of a three-phase common-box arrangement and a middle phase conductor assembly thereof.
Background
With the increasingly strong market competition of switches at home and abroad, high-voltage switch products gradually develop towards miniaturization, low cost, high reliability and the like. Most of the existing 126kV gas insulated metal-enclosed switchgear (GIS) adopts a three-phase common-box design to achieve the purposes of miniaturization and low cost, the arrangement modes of three-phase conductors in the equipment are triangular and linear, and the 126kV gas insulated metal-enclosed switchgear arranged in a linear mode is gradually accepted by the market due to the advantages of simple structure, high universal ratio of three-phase parts and the like.
The electrified display device utilizes the electric field coupling principle between high-voltage electric field and the electrified display sensor, carries out induction type measurement outside safe distance, and electrified display device comprises electrified display sensor and display, and electrified display sensor receives the electric field signal of conductor to carry out comparison and judgement with the display of electric field signal transfer backstage, when being surveyed the conductor electrified, the pilot lamp on the display will be bright.
The chinese utility model patent with the grant publication number CN205231607U discloses a GIS circuit breaker, this GIS circuit breaker includes conductor a, conductor B and conductor C that the in-line was arranged, and the conductor B that sets up in the middle has constituted the mesophase conductor, and conductor a and conductor C that are located the mesophase both sides have constituted the side phase conductor, and this in-line arrangement mode has reduced area, has left bigger maintenance and has patrolled the passageway. However, in the structure in which the three-phase conductors are in a line shape, the intermediate phase conductor is located at the center of the basin-type insulator, and when the voltage state of the intermediate phase conductor is detected by the electrified display sensor installed on the device housing, the intermediate phase conductor is affected by the side phase conductor, so that the voltage state information of the intermediate phase conductor cannot be accurately detected.
Disclosure of Invention
The invention aims to provide an electrical switch with three phases arranged in a same box, which aims to solve the problem that a charged display sensor in the prior art is influenced by a side phase conductor when detecting the voltage state of a middle phase conductor of three-phase conductors arranged in a straight line in an electrical switch shell; the invention also aims to provide a middle phase conductor assembly for the three-phase common-box-arranged electric switch, so as to solve the problem that a live display sensor in the prior art is influenced by a side phase conductor when detecting the voltage state of the middle phase conductor of the three-phase conductors arranged in a straight line in the electric switch shell.
In order to achieve the purpose, the technical scheme of the electric switch with three phases arranged in a box is as follows:
the three-phase common-box-arranged electric switch comprises a shell, wherein a three-phase conductor which is arranged in a straight line shape is arranged in the shell, the three-phase conductor comprises a middle-phase conductor and side-phase conductors which are arranged on two sides of the middle-phase conductor, a middle-phase electrified display sensor used for detecting the voltage state of the middle-phase conductor is arranged on the shell, and a conductor which is arranged towards the plane where the middle-phase electrified display sensor protrudes out of the three-phase conductor is arranged on the middle-phase conductor.
The invention has the beneficial effects that: the electric conductor is arranged on the intermediate phase conductor, so that the distance between the intermediate phase conductor and the intermediate phase electrified display sensor is reduced, the interference of the side phase conductor on the intermediate phase electrified display sensor is avoided, the accurate detection of the voltage state of the intermediate phase electrified display sensor on the intermediate phase conductor is realized, the structure is simple, and the large-scale production is facilitated.
The electrical conductor may be detachably connected to the interphase conductor in order to enable the electrical conductor to be used for other purposes. The intermediate phase conductor can be replaced by different accessories, so that the intermediate phase conductor can be applied to T-shaped box-splitting switching.
In order to prevent the rotation of the conductor from influencing the measurement result, at least one of the two ends of the intermediate phase conductor is provided with a rotation stopping structure which is matched with the basin-type insulator of the shell in a rotation stopping way along the circumferential direction. The rotation stopping structure prevents the rotation of the intermediate phase conductor, so that the circumferential rotation of the conductor along the intermediate phase conductor is limited.
In order to limit the rotation of the intermediate phase conductor along the circumferential direction, a groove is formed in the outer circumferential surface of one end, connected with the basin-type insulator, of the shell, a screw mounting hole used for fixedly connecting the intermediate phase conductor with the basin-type insulator of the shell is formed in the groove wall of the groove, and the screw mounting hole forms the rotation stopping structure. The intermediate phase conductor is tightly pressed on the basin-type insulator through the matching of the screw fixing hole and the fastener, so that after the intermediate phase conductor is installed, the conductor can face the intermediate phase electrified display sensor and cannot rotate along the circumferential direction.
In order to further improve the accuracy of the measurement structure of the intermediate phase electrified display sensor, the groove wall of the groove is also provided with a positioning pin hole which is matched with the screw mounting hole so that the conductor on the intermediate phase conductor is perpendicular to the plane of the three-phase conductor and faces the intermediate phase electrified display sensor. Not only can fix a position the intermediate phase conductor fast, but also can further guarantee that the intermediate phase conductor can not take place to rotate.
In order to be assembled normally when machining errors exist, the intermediate phase conductor comprises a first conductor and a second conductor which are in plug fit, and the electric conductor and the rotation stopping structure are arranged on the first conductor. First conductor and casing fixed connection, the one end and the first conductor cooperation of pegging graft of second conductor guarantee that the second conductor can be followed axial slip and make the normal assembly of mesophase conductor in the electrical switch casing that a three-phase was arranged altogether when having machining error.
In order to achieve the purpose, the technical scheme of the intermediate phase conductor assembly is as follows:
the intermediate phase conductor assembly comprises an intermediate phase conductor, and a conductor which is used for protruding out of the plane where the three-phase conductor is located towards the intermediate phase live display sensor is arranged on the intermediate phase conductor.
The invention has the beneficial effects that: the electric conductor is arranged on the intermediate phase conductor, so that the distance between the intermediate phase conductor and the intermediate phase electrified display sensor is reduced, the interference of the side phase conductor on the intermediate phase electrified display sensor is avoided, the accurate detection of the voltage state of the intermediate phase electrified display sensor on the intermediate phase conductor is realized, the structure is simple, and the large-scale production is facilitated.
The electrical conductor may be detachably connected to the interphase conductor in order to enable the electrical conductor to be used for other purposes. The intermediate phase conductor can be replaced by different accessories, so that the intermediate phase conductor can be applied to T-shaped box-splitting switching.
In order to prevent the rotation of the conductor from influencing the measurement result, at least one of the two ends of the intermediate phase conductor is provided with a rotation stopping structure which is used for being matched with the basin-type insulator in a rotation stopping way along the circumferential direction. The rotation stopping structure prevents the rotation of the intermediate phase conductor, so that the circumferential rotation of the conductor along the intermediate phase conductor is limited.
In order to limit the rotation of the intermediate phase conductor along the circumferential direction, a groove is formed in the outer circumferential surface of one end, used for being connected with the basin-type insulator, of the intermediate phase conductor, a screw mounting hole is formed in the wall of the groove and used for fixedly connecting the intermediate phase conductor with the basin-type insulator of the shell, and the screw mounting hole forms the rotation stopping structure. The intermediate phase conductor is tightly pressed on the basin-type insulator through the matching of the screw fixing hole and the fastener, so that after the intermediate phase conductor is installed, the conductor can face the intermediate phase electrified display sensor and cannot rotate along the circumferential direction.
In order to further improve the accuracy of the measurement structure of the intermediate phase electrified display sensor, the groove wall of the groove is also provided with a positioning pin hole which is matched with the screw mounting hole so that the conductor on the intermediate phase conductor is perpendicular to the plane of the three-phase conductor and faces the intermediate phase electrified display sensor. Not only can fix a position the intermediate phase conductor fast, but also can further guarantee that the intermediate phase conductor can not take place to rotate.
In order to be assembled normally when machining errors exist, the intermediate phase conductor comprises a first conductor and a second conductor which are in plug fit, and the electric conductor and the rotation stopping structure are arranged on the first conductor. First conductor and casing fixed connection, the one end and the first conductor cooperation of pegging graft of second conductor guarantee that the second conductor can be followed axial slip and make the normal assembly of mesophase conductor in the electrical switch casing that a three-phase was arranged altogether when having machining error.
Drawings
Fig. 1 is a schematic structural view of an embodiment 1 of an electrical switch of the three-phase common-box arrangement of the present invention;
fig. 2 is a schematic diagram of the structure of the first conductor of the specific embodiment 1 of the electrical switch of the three-phase common-box arrangement of the present invention;
FIG. 3 is a schematic diagram of the first conductor of embodiment 2 of the three-phase common-box arrangement electrical switch of the present invention;
in fig. 1 and 2: 1-a shell; 2-a basin insulator; a 3-A phase conductor; 4-a first conductor; 41-groove; 42-screw mounting holes; 43-a stationary contact; 44-step; 45-positioning pin holes; 5-an electrical conductor; 6-a second conductor; a 7-C phase conductor; 8-B phase charged display sensor; 9-bolt;
in fig. 3: 11-a first conductor; 12-electrical conductor.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings.
In embodiment 1 of the three-phase common-box-arranged electrical switch of the present invention, as shown in fig. 1 and 2, the three-phase common-box-arranged electrical switch includes a housing 1, both ends of the housing 1 are connected to basin-type insulators 2 through flanges, and joints conductively connected to three-phase conductors are integrally cast on the basin-type insulators 2. The shell 1 is internally provided with three-phase conductors which are arranged in a straight line, wherein each three-phase conductor comprises an A-phase conductor 3, a B-phase conductor and a C-phase conductor 7, the B-phase conductor is arranged between the A-phase conductor 3 and the C-phase conductor 7 and is positioned at the central position of the basin-type insulator 2, the B-phase conductor forms a middle-phase conductor, and the A-phase conductor 3 and the C-phase conductor 7 form side-phase conductors; in this embodiment, be equipped with the electric conductor 5 that the plane was arranged perpendicular to three-phase conductor place on the B phase conductor, B phase conductor and electric conductor have constituted the intermediate phase conductor subassembly, it has reduced the distance of B phase conductor and B phase electrified display sensor 8 to set up electric conductor 5 on B phase conductor, avoided the interference of A phase conductor 3 and C phase conductor 7 to B phase electrified display sensor 8, realized the accurate detection of B phase electrified display sensor 8 to the voltage state of B phase conductor, and simple structure, the large-scale production of being convenient for. In other embodiments, the conductors protrude from the plane of the three-phase conductors and are arranged obliquely.
In this embodiment, a B-phase charged display sensor 8 for detecting a voltage state of a B-phase conductor is disposed on a wall of the housing 1, the B-phase charged display sensor 8 is connected to a background display (not shown) through a cable, and the B-phase charged display sensor 8 constitutes an intermediate-phase charged display sensor. In this embodiment, when the B-phase electrification display sensor 8 senses that the B-phase conductor is electrified, an electric field signal is sent to the display in the background, and a B-phase indicator light of the display is turned on, so that the electrification of the B-phase is indicated. The display and the B-phase charged display sensor 8 in this embodiment constitute a charged display device, wherein the charged display device is a DXN15S type high-voltage charged display locking device. In other embodiments, other models of charged display devices are possible.
As shown in fig. 1, in order to enable normal assembly even in the presence of a machining error, in this embodiment, the phase B conductor includes a first conductor 4 and a second conductor 6, the conductor 5 is disposed on the first conductor 4, a stationary contact 43 is disposed at an end of the first conductor 4 close to the second conductor 6, and an end of the second conductor 6 far from the basin-type insulator 2 of the housing 1 is inserted into the stationary contact 43. The first conductor 4 is fixedly connected with the shell 1, and one end of the second conductor 6 is inserted into a static contact of the first conductor 4, so that the second conductor 6 can slide along the axial direction when machining errors exist, and the B-phase conductor is normally assembled in the shell of the three-phase common-box-arranged electrical switch. In other embodiments, the B-phase conductor is an existing B-phase conductor, a conductor is directly arranged on the B-phase conductor, and the existing B-phase conductor is fixedly connected with a joint of the basin-type insulator through a rotation stopping structure; or a sleeve body with a conductor is sleeved on the existing B-phase conductor, and a rotation stopping structure is arranged at one end of the sleeve body far away from the conductor and is fixed on the basin-type insulator through the rotation stopping structure.
As shown in fig. 2, in order to apply the conductor 5 to another application, in the present embodiment, the conductor 5 and the first conductor 4 are provided separately, the conductor 5 and the first conductor 4 are fixedly connected by the bolt 9, and the first conductor 4 can be replaced with different fittings so that the first conductor 4 can be applied to T-type split junction. In this embodiment, the conductive body 5 is an existing shielding ball structure, and in other embodiments, the conductive body may be a conductive sleeve sleeved on the step. In this embodiment, a step 44 is disposed at the stationary contact 43, and the conductive body 5 is fixedly connected to the step 44 through a bolt 9.
In this embodiment, in order to prevent the electric conductor 5 from facing other angles after being installed, not facing the B-phase charged display sensor completely, and affecting the measurement result, one end of the first conductor 4 is provided with a rotation stopping structure for preventing the electric conductor 5 from rotating along the circumferential direction of the first conductor 4, and the rotation stopping structure avoids the rotation of the first conductor 4, so that the circumferential rotation of the electric conductor 5 is limited, and the accuracy of the measurement result is ensured. In order to limit the first conductor 4 to rotate along the circumferential direction, a groove 41 is formed in the outer circumferential surface of one end, connected with the basin-type insulator 2 of the shell 1, of the first conductor 4, a screw mounting hole 42 used for being fixedly connected with the basin-type insulator 2 of the shell 1 is formed in the groove wall of the groove 41, and the screw mounting hole 42 forms the rotation stopping structure, wherein the screw mounting hole 42 is a light hole. In order to ensure that the conductor 5 on the first conductor 4 just faces the B-phase charged display sensor 8 completely after being installed, a positioning pin hole 45 is further arranged on the wall of the groove 41, and the position of the first conductor 4 can be quickly positioned through the positioning pin hole 45, and the first conductor 4 can be further ensured not to rotate. The groove 41 in this embodiment is deep, the screw mounting hole 42 is provided at a middle position, in other examples, the groove may be provided at a shallow position, and one, two or more than three grooves are provided along the circumferential direction of the first conductor, and a screw mounting hole for pressing the B-phase conductor against the basin-type insulator in cooperation with a fastener is provided on the groove wall of each groove.
In the specific embodiment of the intermediate phase conductor assembly according to the present invention, the intermediate phase conductor assembly in this embodiment has the same structure as the intermediate phase conductor assembly described in the specific embodiment 1 or 2 of the electrical switch in the three-phase common-box arrangement, and thus, the description thereof is omitted.
Claims (6)
1. The electrical switch that the case was arranged altogether to three-phase, which comprises a housin, the inside of casing is equipped with the three-phase conductor that is the in-line and arranges, and the three-phase conductor includes the intermediate phase conductor and sets up the side phase conductor in intermediate phase conductor both sides, its characterized in that: the shell wall of the shell is provided with a middle phase live display sensor used for detecting the voltage state of a middle phase conductor, the middle phase conductor is provided with a conductor which is arranged towards the middle phase live display sensor and protrudes out of the plane where the three-phase conductor is located, the conductor is arranged on the middle phase conductor to reduce the distance between the middle phase conductor and the middle phase live display sensor, and the interference of side phase conductors on two sides of the middle phase conductor to the middle phase live display sensor is avoided.
2. A three-phase common box arrangement electrical switch according to claim 1, characterized in that: the conductor is detachably connected to the intermediate phase conductor.
3. An electrical switch of a three-phase common-box arrangement according to claim 1 or 2, characterized in that: and at least one of the two ends of the intermediate phase conductor is provided with a rotation stopping structure matched with the basin-type insulator of the shell in a rotation stopping manner along the circumferential direction.
4. A three-phase common box arrangement electrical switch according to claim 3, characterized in that: the intermediate phase conductor is provided with a groove on the outer peripheral surface of one end connected with the basin-type insulator of the shell, a screw mounting hole for fixedly connecting the intermediate phase conductor with the basin-type insulator of the shell is formed in the groove wall of the groove, and the screw mounting hole forms the rotation stopping structure.
5. The electrical switch of a three-phase common-box arrangement according to claim 4, characterized in that: and the groove wall of the groove is also provided with a positioning pin hole which is matched with the screw mounting hole so that the conductor on the intermediate phase conductor is perpendicular to the plane where the three-phase conductor is positioned and is arranged towards the intermediate phase electrified display sensor.
6. A three-phase common box arrangement electrical switch according to claim 3, characterized in that: the intermediate phase conductor comprises a first conductor and a second conductor which are in plug-in fit, and the conductor and the rotation stopping structure are both arranged on the first conductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910290345.8A CN110047692B (en) | 2019-04-11 | 2019-04-11 | Three-phase common-box arranged electric switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910290345.8A CN110047692B (en) | 2019-04-11 | 2019-04-11 | Three-phase common-box arranged electric switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110047692A CN110047692A (en) | 2019-07-23 |
| CN110047692B true CN110047692B (en) | 2021-08-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910290345.8A Active CN110047692B (en) | 2019-04-11 | 2019-04-11 | Three-phase common-box arranged electric switch |
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| Country | Link |
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| CN (1) | CN110047692B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111129890B (en) * | 2019-11-28 | 2021-05-14 | 平高集团有限公司 | Three-phase conductor phase-change connector |
| CN111129892B (en) * | 2019-11-28 | 2021-05-14 | 平高集团有限公司 | Three-phase conductor adapter |
| CN118074000A (en) * | 2021-12-16 | 2024-05-24 | 河南平高电气股份有限公司 | Three-phase common-box insulator assembly and GIS |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103226156B (en) * | 2013-03-27 | 2015-06-03 | 国家电网公司 | Shield ball |
| CN204376293U (en) * | 2015-01-30 | 2015-06-03 | 吉林省金冠电气股份有限公司 | A kind of solid insulation switch module for solid-state insulated switchgear |
| CN107332151A (en) * | 2017-07-14 | 2017-11-07 | 河南平高电气股份有限公司 | A kind of GIS device |
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2019
- 2019-04-11 CN CN201910290345.8A patent/CN110047692B/en active Active
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| CN110047692A (en) | 2019-07-23 |
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