CN201425916Y - Longitudinal magnetic field arc failure device and gaseous insulation load switch - Google Patents
Longitudinal magnetic field arc failure device and gaseous insulation load switch Download PDFInfo
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- CN201425916Y CN201425916Y CN2009201469656U CN200920146965U CN201425916Y CN 201425916 Y CN201425916 Y CN 201425916Y CN 2009201469656 U CN2009201469656 U CN 2009201469656U CN 200920146965 U CN200920146965 U CN 200920146965U CN 201425916 Y CN201425916 Y CN 201425916Y
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Abstract
The utility model discloses a longitudinal magnetic field arc failure device and a gaseous insulation load switch, and comprises a copper collar core, a winding, a hold hoop component, an arc guide sheet and a mounting support, wherein the winding is wrapped on the external surface of the copper collar core; the hold hoop component includes a hold hoop and bolt fasteners, the hold hoop is sleevedon the external surface of the winding, and two side ends of the hold hoop are secured and connected by the bolt fasteners; the copper collar core is electrically connected with the starting end of the winding, and the hold hoop is electrically connected with the tail end of the winding; one end of the arc guide sheet is fixedly welded to the copper collar core, the other end of the arc guide sheet extends towards the outside of the copper collar core; one end of the mounting support is fixedly welded to the hold hoop. The gaseous insulation load switch is manufactured by the longitudinal magnetic field arc failure device. The utility model has the advantages of having high arc extinguishing capacity, safety and reliability, long electrical endurance and convenient installation and usage.
Description
Technical field
The utility model belongs to high voltage electrical apparatus technical field, the gas-insulated on-load switch that is specifically related to a kind of longitudinal magnetic field breath arc device and adopts this kind longitudinal magnetic field breath arc device to make.
Background technology
At present middle pressure SF
6Generally use on-load switch in the insulated switch cabinet, be a kind of be one with on-load switch, isolating switch, earthed switch, be sealed in one and be full of SF
6In the casing of gas, utilize SF
6The insulation of gas excellence, arc extinction performance, close satisfied pass, the switchgear of isolation, ground connection three station functions.Have simple in structure, interlocking is reliable, volume is little, maintenance less, the easy advantage such as installation of safety, be applicable to different application scenarios.Present SF
6The on-load switch great majority adopt following two kinds of arc quenching methods:
1) arc extinguishing grid pieces mode: an arc-chute bracing frame is arranged maintaining a certain distance with angle with on-load switch moving knife motion, it is parallel or near the arc extinguishing grid pieces of equality, this arc extinguishing grid pieces generally adopts the plastic material of conduction to make that multi-disc is housed in the bracing frame.Electric arc produces between moving knife and arc extinguishing grid pieces and grid sheet in on-load switch separating brake process, the even electromagnetism that utilizes parallel arc extinguishing grid pieces to form, electric arc is burnt between arc extinguishing grid pieces uniformly, thereby the ablation moving knife and the quiet cutter head of electric arc transition have been avoided, and utilize the grid sheet to absorb the heat energy that electric arc produces, the insulation distance of grid sheet progressively increases arc current circulation resistance, and electric arc is extinguished when current over-zero.This arc quenching method requires height to production and installation accuracy, and has the short shortcoming of electric life.
2) the arc blow-out mode of calming the anger: it is equipped with a pneumatic tube near the switch moving knife, there are annexation in the piston and the load of pneumatic tube, and the nozzle of pneumatic tube is facing to fracture between moving knife and quiet cutter, in on-load switch separating brake process, piston moves rapidly in the pneumatic tube, with the cold SF in the compression cylinder
6Gas blows to electric arc between moving knife and quiet cutter from nozzle, makes electric arc elongate, break up and cool off, and finally makes arc extinction.Owing to adopted the interlock servicing unit, required the separating brake merit of mechanism bigger than normal.
The utility model content
The longitudinal magnetic field breath arc device that the purpose of this utility model provides that a kind of arc extinguishing ability is strong, safe and reliable, electric life is long and easy to install.
Another purpose of the present utility model provides that a kind of arc extinguishing ability is strong, safe and reliable, electric life is long and gas-insulated on-load switch easy to install.
The technical scheme that realizes first purpose of the utility model is: a kind of longitudinal magnetic field breath arc device comprises copper ring fuse, winding, anchor ear assembly, leads arc sheet and mounting bracket; Described winding is provided with around described copper ring fuse outer surface; Described anchor ear assembly comprises anchor ear and bolt fastener; Described anchor ear is set on the outer surface of described winding, and described bolt fastener is fastenedly connected the two side ends of described anchor ear; Described copper ring fuse is electrically connected with the initiating terminal of described winding, and described anchor ear is electrically connected with the end of described winding; A described end of leading the arc sheet is weldingly fixed on the described copper ring fuse, and its other end stretches towards described copper ring fuse lateral direction; One end of described mounting bracket is weldingly fixed on the described anchor ear.
In the technique scheme, described mounting bracket and described lead the arc sheet be oppositely arranged on described winding along the two side ends on the axial direction of copper ring fuse center.
In the technique scheme, described winding respectively is being provided with a packing ring that adopts flame-retardant insulating material to make along the two side ends on the axial direction of copper ring fuse center; It is that 0.02mm～0.2mm, width are that the thin copper belt of 20mm～25mm forms round the coiling of copper ring fuse that described winding adopts thickness, and to be lined with than copper strips width at the turn-to-turn of each circle copper strips be that 3mm～6mm, thickness are the turn-to-turn insulation of the insulation film of 0.1mm as copper strips; Perhaps described winding adopts the copper enamelled wire coiling of diameter 2.0mm～3.0mm.
In the technique scheme, described umber of turn is 15 circles～30 circles, and its loop resistance is at 15m Ω～40m Ω.
In the technique scheme, this breath arc device comprises that also is used to a circlip that prevents that described packing ring from coming off, and described circlip is fixed on the described copper ring fuse.
The technical scheme that realizes second purpose of the utility model is: a kind of gas-insulated on-load switch, and the quiet cutter head, time bus-bar, the rotation that comprise bus-bar, are fixedly installed on the bus-bar are arranged on down the moving knife bar on the bus-bar; Described moving knife bar with described quiet cutter head contact or separate, thereby is realized closing a floodgate and separating brake moves in rotating process; Its design feature is:
Also comprise the longitudinal magnetic field breath arc device identical with moving knife bar quantity; Described longitudinal magnetic field breath arc device comprises copper ring fuse, winding, anchor ear assembly, leads arc sheet and mounting bracket; Described anchor ear assembly comprises anchor ear and bolt fastener; Described winding is provided with around described copper ring fuse outer surface; Described anchor ear is set on the outer surface of described winding, and described bolt fastener is fastenedly connected the two side ends of described anchor ear; Described copper ring fuse is electrically connected with the initiating terminal of described winding, and described anchor ear is electrically connected with the end of described winding; A described end of leading the arc sheet is weldingly fixed on the described copper ring fuse, and its other end stretches towards the direction near described quiet cutter head; One end of described mounting bracket is weldingly fixed on the described anchor ear, and its other end is fixed on described going up on the bus-bar.
In the technique scheme, when described copper ring fuse is positioned at described moving knife bar and is in gate-dividing state directly over; All remain with a suitable gas gap between the described moving knife bar of leading arc sheet and quiet cutter head and rotation.
In the technique scheme, described mounting bracket and described lead the arc sheet be oppositely arranged on described winding along the two side ends on the axial direction of copper ring fuse center.
In the technique scheme, described winding respectively is being provided with a packing ring that adopts flame-retardant insulating material to make along the two side ends on the axial direction of copper ring fuse center; It is that 0.02mm～0.2mm, width are that the thin copper belt of 20mm～25mm forms round the coiling of described copper ring fuse that described winding adopts thickness, and the turn-to-turn at each circle copper strips is lined with than the wide 3mm～6mm of copper strips, and thickness is the turn-to-turn insulation of the insulation film of 0.1mm as copper strips; Perhaps described winding adopts the copper enamelled wire coiling of diameter 2.0mm～3.0mm.
In the technique scheme, this breath arc device comprises that also is used to a circlip that prevents that described packing ring from coming off, and described circlip is fixed on the described copper ring fuse; Described umber of turn is 15 circles～30 circles, and its loop resistance is at 15m Ω～40m Ω.
The utlity model has positive effect:
(1) breath of the longitudinal magnetic field in the utility model arc device is because special structure design can be used for high-voltage appliance switch as the use of breath arc device.By the electric current that flows through coil windings produce one with the consistent longitudinal magnetic field of moving knife bar direction, and electric arc is rotated, when current over-zero, make arc extinction, thereby reach the purpose of on-load switch disjunction load current.Advantages such as that this breath arc coil has is with low cost, safe and reliable, electric life long and easy to install, being widely used in gas is the on-load switch of dielectric.
(2) the gas-insulated on-load switch in the utility model is when being in "on" position, and electric current is powered to power load from last bus-bar flow through quiet cutter head, moving knife bar, moving knife bar support and following bus-bar.When the on-load switch separating brake, after the rotation of moving knife bar breaks away from quiet cutter head certain distance, originally the electric current that flows through quiet cutter head through the moving knife bar punctures the gas gap lead between arc sheet and moving knife bar, and electric current changes by the moving knife bar flow direction leads the arc sheet, and coils winding, anchor ear, the supreme bus-bar of mounting bracket.Because electric current flowing through coil winding rotation, thus produce one with the consistent longitudinal magnetic field of moving knife bar direction.When the moving knife bar rotates near the separating brake position, arc transfer is between moving knife bar and the coil windings copper ring fuse, under the effect of longitudinal magnetic field, the rotation of electric arc moving knife bar also guarantees that electric arc burns uniformly between moving knife bar and winding copper ring fuse, and it is serious can not to produce localized burn.When the alternating current zero passage, arc extinction.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model;
Fig. 2 is the cutaway view of longitudinal magnetic field breath arc device shown in Figure 1 along the A-A line;
Fig. 3 is the structural representation of the manufacture method of winding in the longitudinal magnetic field breath arc device shown in Figure 1;
Fig. 4 is a kind of structural representation of gas-insulated on-load switch in the utility model.
Be labeled as shown in the accompanying drawing: copper ring fuse 1, winding 2, copper strips 21, insulation film 22, anchor ear assembly 3, anchor ear 31, bolt fastener 32 is led arc sheet 4, mounting bracket 5, packing ring 6, circlip 7, last bus-bar 81, quiet cutter head 82, following bus-bar 83, moving knife bar 84.
Embodiment
(embodiment 1, longitudinal magnetic field breath arc device)
Fig. 1 to Fig. 3 has shown a kind of embodiment of the present utility model, and wherein, Fig. 1 is a kind of structural representation of the present utility model; Fig. 2 is the cutaway view of longitudinal magnetic field breath arc device shown in Figure 1 along the A-A line; Fig. 3 is the structural representation of the manufacture method of winding in the longitudinal magnetic field breath arc device shown in Figure 1.
Present embodiment is a kind of longitudinal magnetic field breath arc device that is used for the gas-insulated on-load switch, sees Fig. 1 to Fig. 3, comprises copper ring fuse 1, winding 2, anchor ear assembly 3, leads arc sheet 4, mounting bracket 5, packing ring 6 and circlip 7; Described winding 2 is around described copper ring fuse 1 outer surface setting; Described anchor ear assembly 3 comprises anchor ear 31 and bolt fastener 32; Described anchor ear 31 is set on the outer surface of described winding 2, and described bolt fastener 32 is fastenedly connected the two side ends of described anchor ear 31; Described copper ring fuse 1 is electrically connected with the initiating terminal of described winding 2, and described anchor ear 31 is electrically connected with the end of described winding 2; A described end of leading arc sheet 4 is weldingly fixed on the described copper ring fuse 1, and its other end stretches towards described copper ring fuse 1 lateral direction; One end of described mounting bracket 5 is weldingly fixed on the described anchor ear 31.
Directly over when described copper ring fuse 1 is positioned at described moving knife bar 84 and is in gate-dividing state; All remain with a suitable gas gap between the described moving knife bar 84 of leading arc sheet 4 and quiet cutter head 82 and rotation.
Described mounting bracket 5 with described lead arc sheet 4 be oppositely arranged on described winding 2 along the two side ends on the copper ring fuse 1 center axial direction (also being the direction of C-C line among Fig. 1).
Described winding 2 respectively is being provided with a packing ring 6 that adopts flame-retardant insulating material to make along the two side ends on the copper ring fuse 1 center axial direction; Described circlip 7 is fixed on the described copper ring fuse 1, is used to prevent that described packing ring 6 from coming off.
In concrete practice, it is that 0.02mm～0.2mm, width are that the thin copper belt 21 of 20mm～25mm forms round 1 coiling of copper ring fuse that described winding 2 can adopt thickness, and the turn-to-turn at each circle copper strips 21 is lined with than copper strips 21 wide 3mm～6mm, and thickness is the turn-to-turn insulation of the insulation film 22 of 0.1mm as copper strips 21; Perhaps described winding 2 adopts the copper enamelled wire coiling of diameter 2.0mm～3.0mm.Described winding 2 numbers of turn are preferably 15 circles～30 circles, and its loop resistance is at 15m Ω～40m Ω.
Fig. 3 has shown the winding method of winding 2 in the present embodiment, the initiating terminal of thin copper belt 21 is welded on the copper ring fuse 1, insulation film 22 is bonded on the described copper ring fuse 1 at opposite side, then, twine described insulation film 22 and described thin copper belt 21 round described copper ring fuse outer surface, until forming winding 2.
Longitudinal magnetic field breath arc device in the present embodiment is because special structure design can be used for high-voltage appliance switch as the use of breath arc device.By the electric current that flows through coil windings produce one with the consistent longitudinal magnetic field of moving knife bar direction, and electric arc is rotated, when current over-zero, make arc extinction, thereby reach the purpose of on-load switch disjunction load current.Advantages such as that this breath arc coil has is with low cost, safe and reliable, electric life long and easy to install, being widely used in gas is the on-load switch of dielectric.
(embodiment 2, gas-insulated on-load switch)
Fig. 4 is a kind of structural representation of gas-insulated on-load switch in the utility model, has shown the embodiment of gas-insulated on-load switch in the utility model.
Present embodiment is the gas-insulated on-load switch that a kind of embodiment of employing 1 described longitudinal magnetic field spark blowout is made, comprise bus-bar 81, be fixedly installed on quiet cutter head 82 on the bus-bar 81, down bus-bar 83, rotate the moving knife bar 84 that is arranged on down on the bus-bar 83 and the longitudinal magnetic field identical with moving knife bar 84 quantity ceases the arc device; Described moving knife bar 84 with described quiet cutter head 82 contacts or separate, thereby is realized closing a floodgate and separating brake moves in arrow direction indication rotating process in Fig. 4; Among Fig. 4, described moving knife bar 84 is in position that solid line is painted, and on-load switch is in "on" position; Described moving knife bar 84 is in position that dotted line is painted, and is to be in gate-dividing state.
Described longitudinal magnetic field spark blowout comprises copper ring fuse 1, winding 2, anchor ear assembly 3, leads arc sheet 4, mounting bracket 5, packing ring 6 and circlip 7; Described winding 2 is around described copper ring fuse 1 outer surface setting; Described anchor ear assembly 3 comprises anchor ear 31 and bolt fastener 32; Described anchor ear 31 is set on the outer surface of described winding 2, and described bolt fastener 32 is fastenedly connected the two side ends of described anchor ear 31; Described copper ring fuse 1 is electrically connected with the initiating terminal of described winding 2, and described anchor ear 31 is electrically connected with the end of described winding 2; A described end of leading arc sheet 4 is weldingly fixed on the described copper ring fuse 1, and its other end stretches towards described copper ring fuse 1 lateral direction; One end of described mounting bracket 5 is weldingly fixed on the described anchor ear 31.
Described mounting bracket 5 with described lead arc sheet 4 be oppositely arranged on described winding 2 along the two side ends on the copper ring fuse 1 center axial direction.
Described winding 2 respectively is being provided with a packing ring 6 that adopts flame-retardant insulating material to make along the two side ends on the copper ring fuse 1 center axial direction; Described circlip 7 is fixed on the described copper ring fuse 1, is used to prevent that described packing ring 6 from coming off.
The arc device of resting is directly installed on the last bus-bar of on-load switch, and this mounting means can not produce bigger influence to the on-load switch structure.
But described anchor ear and mounting bracket all adopt conductive metallic material to make, and mounting bracket is welded on the anchor ear.Mounting bracket is both as the installation supporting bracket of coil, again as electric current after lead arc sheet or winding copper ring fuse and flow into, the coils winding, anchor ear and mounting bracket flow to the usefulness of the conduction of bus-bar again.
In concrete practice, it is that 0.02mm～0.2mm, width are that the thin copper belt 21 of 20mm～25mm forms round 1 coiling of copper ring fuse that described winding 2 can adopt thickness, and the turn-to-turn at each circle copper strips 21 is lined with than copper strips 21 wide 3mm～6mm, and thickness is the turn-to-turn insulation of the insulation film 22 of 0.1mm as copper strips 21; Perhaps described winding 2 adopts the copper enamelled wire coiling of diameter 2.0mm～3.0mm.Described winding 2 numbers of turn are preferably 15 circles～30 circles, and its loop resistance is at 15m Ω～40m Ω.
Present embodiment is when being in "on" position, and electric current is powered to power load from last bus-bar flow through quiet cutter head, moving knife bar, moving knife bar support and following bus-bar.When the on-load switch separating brake, after the rotation of moving knife bar breaks away from quiet cutter head certain distance, originally the electric current that flows through quiet cutter head through the moving knife bar punctures the gas gap lead between arc sheet and moving knife bar, and electric current changes by the moving knife bar flow direction leads the arc sheet, and coils winding, anchor ear, the supreme bus-bar of mounting bracket.Because electric current flowing through coil winding rotation, thus produce one with the consistent longitudinal magnetic field of moving knife bar direction.When the moving knife bar rotates near the separating brake position, arc transfer is between moving knife bar and the coil windings copper ring fuse, under the effect of longitudinal magnetic field, the rotation of electric arc moving knife bar also guarantees that electric arc burns uniformly between moving knife bar and winding copper ring fuse, and it is serious can not to produce localized burn.When the alternating current zero passage, arc extinction.
Obviously, the foregoing description of the present utility model only is for the utility model example clearly is described, and is not to be qualification to execution mode of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give exhaustive to all execution modes.And these belong to conspicuous variation or the change that connotation of the present utility model extends out and still belong to protection range of the present utility model.
Claims (10)
1, a kind of longitudinal magnetic field breath arc device comprises copper ring fuse (1), winding (2), anchor ear assembly (3), leads arc sheet (4) and mounting bracket (5); It is characterized in that: described winding (2) is around described copper ring fuse (1) outer surface setting; Described anchor ear assembly (3) comprises anchor ear (31) and bolt fastener (32); Described anchor ear (31) is set on the outer surface of described winding (2), and described bolt fastener (32) is fastenedly connected the two side ends of described anchor ear (31); Described copper ring fuse (1) is electrically connected with the initiating terminal of described winding (2), and described anchor ear (31) is electrically connected with the end of described winding (2); A described end of leading arc sheet (4) is weldingly fixed on the described copper ring fuse (1), and its other end stretches towards described copper ring fuse (1) lateral direction; One end of described mounting bracket (5) is weldingly fixed on the described anchor ear (31).
2, longitudinal magnetic field according to claim 1 breath arc device, its essential characteristic is: described mounting bracket (5) with described lead arc sheet (4) be oppositely arranged on described winding (2) along the two side ends on the axial direction of copper ring fuse (1) center.
3, longitudinal magnetic field breath arc device according to claim 1, its essential characteristic is: described winding (2) respectively is being provided with a packing ring (6) that adopts flame-retardant insulating material to make along the two side ends on the axial direction of copper ring fuse (1) center; It is that 0.02mm～0.2mm, width are that the thin copper belt (21) of 20mm～25mm forms round copper ring fuse (1) coiling that described winding (2) adopts thickness, and to be lined with than copper strips (21) width at the turn-to-turn of each circle copper strips (21) be that 3mm～6mm, thickness are the turn-to-turn insulation of the insulation film (22) of 0.1mm as copper strips (21); Perhaps described winding (2) adopts the copper enamelled wire coiling of diameter 2.0mm～3.0mm.
4, longitudinal magnetic field breath arc device according to claim 3, its essential characteristic is: described winding (2) number of turn is 15 circles～30 circles, and its loop resistance is at 15m Ω～40m Ω.
5, longitudinal magnetic field breath arc device according to claim 3, its essential characteristic is: this breath arc device comprises that also is used to a circlip (7) that prevents that described packing ring (6) from coming off, and described circlip (7) is fixed on the described copper ring fuse (1).
6, a kind of gas-insulated on-load switch, the quiet cutter head (82), time bus-bar (83), the rotation that comprise bus-bar (81), are fixedly installed on the bus-bar (81) are arranged on down the moving knife bar (84) on the bus-bar (83); Described moving knife bar (84) with described quiet cutter head (82) contact or separates, thereby is realized closing a floodgate and separating brake moves in rotating process; It is characterized in that:
Also comprise the longitudinal magnetic field breath arc device identical with moving knife bar (84) quantity; Described longitudinal magnetic field breath arc device comprises copper ring fuse (1), winding (2), anchor ear assembly (3), leads arc sheet (4) and mounting bracket (5); Described anchor ear assembly (3) comprises anchor ear (31) and bolt fastener (32); Described winding (2) is around described copper ring fuse (1) outer surface setting; Described anchor ear (31) is set on the outer surface of described winding (2), and described bolt fastener (32) is fastenedly connected the two side ends of described anchor ear (31); Described copper ring fuse (1) is electrically connected with the initiating terminal of described winding (2), and described anchor ear (31) is electrically connected with the end of described winding (2); A described end of leading arc sheet (4) is weldingly fixed on the described copper ring fuse (1), and its other end stretches towards the direction near described quiet cutter head (82); One end of described mounting bracket (5) is weldingly fixed on the described anchor ear (31), and its other end is fixed on described going up on the bus-bar (81).
7, gas-insulated on-load switch according to claim 1, its essential characteristic is: described copper ring fuse (1) be positioned at described moving knife bar (84) when being in gate-dividing state directly over; All remain with a suitable gas gap between the described moving knife bar (84) of leading arc sheet (4) and quiet cutter head (82) and rotation.
8, gas-insulated on-load switch according to claim 1, its essential characteristic is: described mounting bracket (5) with described lead arc sheet (4) be oppositely arranged on described winding (2) along the two side ends on the axial direction of copper ring fuse (1) center.
9, gas-insulated on-load switch according to claim 1, its essential characteristic is: described winding (2) respectively is being provided with a packing ring (6) that adopts flame-retardant insulating material to make along the two side ends on the axial direction of copper ring fuse (1) center; It is that 0.02mm～0.2mm, width are that the thin copper belt (21) of 20mm～25mm forms round described copper ring fuse (1) coiling that described winding (2) adopts thickness, and the turn-to-turn at each circle copper strips (21) is lined with than the wide 3mm～6mm of copper strips (21), and thickness is the turn-to-turn insulation of the insulation film (22) of 0.1mm as copper strips (21); Perhaps described winding (2) adopts the copper enamelled wire coiling of diameter 2.0mm～3.0mm.
10, gas-insulated on-load switch according to claim 9, its essential characteristic is: this breath arc device comprises that also is used to a circlip (7) that prevents that described packing ring (6) from coming off, and described circlip (7) is fixed on the described copper ring fuse (1); Described winding (2) number of turn is 15 circles～30 circles, and its loop resistance is at 15m Ω～40m Ω.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201469656U CN201425916Y (en) | 2009-03-28 | 2009-03-28 | Longitudinal magnetic field arc failure device and gaseous insulation load switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201469656U CN201425916Y (en) | 2009-03-28 | 2009-03-28 | Longitudinal magnetic field arc failure device and gaseous insulation load switch |
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| Publication Number | Publication Date |
|---|---|
| CN201425916Y true CN201425916Y (en) | 2010-03-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201469656U Expired - Fee Related CN201425916Y (en) | 2009-03-28 | 2009-03-28 | Longitudinal magnetic field arc failure device and gaseous insulation load switch |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102005328A (en) * | 2010-10-19 | 2011-04-06 | 上海天灵开关厂有限公司 | Rotating arc type arc-extinguishing method of gas insulating load switch |
| CN103367022A (en) * | 2013-07-27 | 2013-10-23 | 广西银河迪康电气有限公司 | Arc-extinguishing coil of gas insulating load switch |
| CN107910225A (en) * | 2017-11-24 | 2018-04-13 | 周敬存 | A kind of arc-control device and its arc-suppressing method on ring main unit |
-
2009
- 2009-03-28 CN CN2009201469656U patent/CN201425916Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102005328A (en) * | 2010-10-19 | 2011-04-06 | 上海天灵开关厂有限公司 | Rotating arc type arc-extinguishing method of gas insulating load switch |
| CN102005328B (en) * | 2010-10-19 | 2013-03-13 | 上海天灵开关厂有限公司 | Rotating arc type arc-extinguishing device of gas insulating load switch |
| CN103367022A (en) * | 2013-07-27 | 2013-10-23 | 广西银河迪康电气有限公司 | Arc-extinguishing coil of gas insulating load switch |
| CN103367022B (en) * | 2013-07-27 | 2015-11-18 | 广西银河迪康电气有限公司 | Gas insulated load switch Petersen coil |
| CN107910225A (en) * | 2017-11-24 | 2018-04-13 | 周敬存 | A kind of arc-control device and its arc-suppressing method on ring main unit |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100317 Termination date: 20110328 |