CN203367130U - Arc extinguishing coil of gas insulated load switch - Google Patents
Arc extinguishing coil of gas insulated load switch Download PDFInfo
- Publication number
- CN203367130U CN203367130U CN 201320450761 CN201320450761U CN203367130U CN 203367130 U CN203367130 U CN 203367130U CN 201320450761 CN201320450761 CN 201320450761 CN 201320450761 U CN201320450761 U CN 201320450761U CN 203367130 U CN203367130 U CN 203367130U
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- arc
- load switch
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Abstract
The utility model discloses an arc extinguishing coil of a gas insulated load switch. The arc extinguishing coil of the gas insulated load switch relates to the high voltage electrical equipment manufacture technology field, and comprises a metal ring, a winding, a metal hoop and an installing support. One side of the metal ring is equipped with an arc guide sheet, the initiating terminal of the winding is electrically connected with the metal ring, and the tail end of the winding is electrically connected with the metal hoop. The metal hoop is arranged on the outer surface of the winding and is equipped with the installing support, and the installing support and the arc guide sheet are at the same side. The metal ring is fixed on a plastic ring, and the winding is wound on the outer surfaces of the plastic ring and the metal ring. The metal ring and the arc guide sheet are formed by punching a metal plate of 1-2 mm at once, and the winding is formed by using a metal material of which the cross-section is 1-4 square millimeter to wind the outer surfaces of the metal ring and the plastic ring. The arc extinguishing coil of the gas insulated load switch can solve the problems that the arc extinguishing coil is high in manufacture cost, the arc guide sheet is easy to fall off, and a welding angle is poor in consistency to thereby affect the arc extinguishing effect.
Description
Technical field
The utility model relates to high voltage electric equipment manufacturing technology field, especially a kind of gas insulated load switch Petersen coil.
Background technology
The current arc quenching method of gas insulated load switch has multiple, as arc extinguishing grid pieces arc quenching method, the arc blow-out mode of calming the anger, revolve arc magnetic field arc quenching method.The arc quenching principle that revolves arc magnetic field arc quenching method is that gas insulated load switch is when disjunction, adopt arc electrode that arc current is introduced to Petersen coil, the electric arc fast rotational is ordered about in the magnetic field that arc current produces at Petersen coil, the electric arc of rotation is the fresh insulating gas of contact constantly, discharge heat energy, be cooled very soon, when current over-zero, electric arc is extinguished.Two patents of the Chinese utility model patent of the Chinese invention patent of patent No. ZL99801182.7 " for the Petersen coil of gas isolated on-load switch ", patent No. ZL200920146965.6 " a kind of longitudinal magnetic field breath arc device and gas insulated load switch " all adopt the above-mentioned arc quenching principle that revolves arc magnetic field arc quenching method.
The winding impedance of " for the Petersen coil of gas isolated on-load switch " described Petersen coil of patent No. ZL99801182.7 is between 50 to 5000 Ω, cause by the electric current of Petersen coil less, the magnetic field intensity that Petersen coil produces diminishes, the arc extinguishing ability also diminishes with magnetic field intensity, can't adapt to the requirement that on-load switch cut-offs large electric current.Longitudinal magnetic field breath arc device described in the Chinese utility model patent of patent No. ZL200920146965.6 " a kind of longitudinal magnetic field breath arc device and gas insulated load switch ", its winding loop resistance is between 15m Ω to 40m Ω, electric current by winding is larger, the magnetic field intensity produced is large, and the arc extinguishing ability is strong.But the longitudinal magnetic field of this structure breath arc device copper ring fuse used need to adopt larger-size copper material processing, and manufacturing cost is high; Lead in addition the arc sheet and be welded on the copper ring fuse, existence is led the arc sheet and is caused the caducous hidden danger of arc sheet because welding effect is poor, and the soldering angle consistency is poor simultaneously, affects arc quenching effect.
The utility model content
The purpose of this utility model is to provide a kind of gas insulated load switch Petersen coil, and it is high that it can solve the Petersen coil manufacturing cost, leads the arc sheet and easily comes off, and the soldering angle consistency is poor, affects the problem of arc quenching effect.
In order to address the above problem, the technical solution adopted in the utility model is: this gas insulated load switch Petersen coil, comprise becket, winding, metal anchor ear and mounting bracket, one side of described becket is provided with leads the arc sheet, the initiating terminal of described winding is electrically connected to described becket, the end of described winding is electrically connected to described metal anchor ear, described metal anchor ear is located at the outer surface of described winding, be provided with described mounting bracket on described metal anchor ear, this mounting bracket and the described arc sheet of leading are in the same side; Described becket is fixed on plastic hoop, is wound with described winding on the outer surface of this plastic hoop and described becket.
In technique scheme, more specifically scheme can also be: described becket and the described arc sheet of leading adopt the metallic plate of 1-2 millimeter thickness once to be stamped to form.
Further: the metal material that described winding adopts sectional area 1-4 square millimeter forms around coiling on the outer surface of described becket and described plastic hoop; The side that described winding contacts with described becket on central axis direction is provided with a packing ring that adopts insulating material to make.
Owing to having adopted technique scheme, compared with prior art, the beneficial effect had is the utility model: becket once is stamped to form with the metal material of leading arc sheet employing thinner thickness, and processing cost is low; Owing to leading the part that the arc sheet is becket, avoid leading arc sheet welding quality and cause the hidden danger come off, guaranteed the consistency of arc quenching effect simultaneously, strengthen the reliability of Petersen coil.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the schematic diagram of embodiment of the present utility model.
Fig. 3 is becket of the present utility model and the schematic diagram of leading the arc sheet.
Label in accompanying drawing: becket 1, lead arc sheet 1.1, plastic hoop 2, winding 3, metal anchor ear 4, mounting bracket 5, packing ring 6, sunk screw 7, bolt fastener 8, fixed contact 9, moving contact 10, upper bus-bar 11.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail:
Fig. 1, Fig. 2, the gas insulated load switch Petersen coil of Fig. 3, becket 1 use sunk screw 7 is fastened on plastic hoop 2, (in the present embodiment, metal refers to brass); Winding 3 is wrapped on the outer surface of becket 1 and plastic hoop 2,, the initiating terminal of winding 3 is electrically connected to becket 1; Metal anchor ear 4 is set on the outer surface of winding 3, and the end of winding 3 is electrically connected to metal anchor ear 4; One side of becket 1 is provided with leads arc sheet 1.1, and becket 1 once is stamped to form with the brass sheet of leading 1.5 millimeters thickness of arc sheet 1.1 employings; Mounting bracket 5 is weldingly fixed on metal anchor ear 4, mounting bracket 5 with lead arc sheet 1.1 in the same side.Winding 3 adopts the thin copper belt coiling of 3 square millimeters of the enamel-cover brass wire of 1 millimeter or sectional areas to form, and what in the present embodiment, adopt is that the enamel-cover brass wire coiling of 1 millimeter forms; The number of turn of winding 3 is at the 20-50 circle, and the present embodiment is 30 circles, and the resistance of winding 3 is not more than 100 milliohms, and the present embodiment is 60 milliohms; The side that winding 3 contacts with becket 1 on central axis direction is provided with a packing ring 6 that adopts insulating material to make.
Each of gas insulated load switch has a fixed contact 9 and a moving contact 10 mutually, fixed contact 9 is fixed on bus-bar 11, be provided with a Petersen coil on upper bus-bar 11, lead arc sheet 1.1 towards fixed contact 9 on the becket 1 of Petersen coil, lead arc sheet 1.1 and be electrically connected to upper bus-bar 11 realizations by becket 1, winding 3, metal anchor ear 4, mounting bracket 5.
During gas insulated load switch disjunction load current, produce electric arc between moving contact 10 and fixed contact 9, when moving contact 10 motion processes are led arc sheet 1.1 below, electric arc on fixed contact 9 is transferred to rapidly leads arc sheet 1.1, the arc current becket 1 of flowing through this moment, winding 3, metal anchor ear 4, the supreme bus-bar 11 of mounting bracket 5, winding 3 produces magnetic field, when moving contact 10 moves to becket 1 below, electric arc goes to becket 1 from leading arc sheet 1.1, the magnetic field of Petersen coil makes the electric arc fast rotational, the electric arc of rotation is the fresh insulating gas of contact constantly, discharge heat energy, be cooled very soon, when current over-zero, arc extinction.In on-load switch separating brake process, electric arc fast transfer on fixed contact 9 is led arc sheet 1.1, becket 1 to Petersen coil, reducing electric arc burns fixed contact 9, moving contact 10 is below moving to becket 1 time, the outer surface of cupular part rotation of electric arc at moving contact 10 ordered about in magnetic field, reduces the scaling loss of electric arc to moving contact 10.
Claims (3)
1. a gas insulated load switch Petersen coil, comprise becket (1), winding (3), metal anchor ear (4) and mounting bracket (5), one side of described becket (1) is provided with leads arc sheet (1.1), the initiating terminal of described winding (3) is electrically connected to described becket (1), the end of described winding (3) is electrically connected to described metal anchor ear (4), described metal anchor ear (4) is located at the outer surface of described winding (3), be provided with described mounting bracket (5) on described metal anchor ear (4), this mounting bracket (5) and the described arc sheet (1.1) of leading are in the same side, it is characterized in that: it is upper that described becket (1) is fixed on plastic hoop (2), on the outer surface of this plastic hoop (2) and described becket (1), is wound with described winding (3).
2. gas insulated load switch Petersen coil according to claim 1 is characterized in that: described becket (1) and the described arc sheet (1.1) of leading adopt the metallic plate of 1-2 millimeter thickness once to be stamped to form.
3. gas insulated load switch Petersen coil according to claim 1 and 2 is characterized in that: the metal material that described winding (3) adopts sectional area 1-4 square millimeter forms around coiling on the outer surface of described becket (1) and described plastic hoop (2); The side that described winding (3) contacts with described becket (1) on central axis direction is provided with a packing ring (6) that adopts insulating material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320450761 CN203367130U (en) | 2013-07-27 | 2013-07-27 | Arc extinguishing coil of gas insulated load switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320450761 CN203367130U (en) | 2013-07-27 | 2013-07-27 | Arc extinguishing coil of gas insulated load switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203367130U true CN203367130U (en) | 2013-12-25 |
Family
ID=49814855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320450761 Withdrawn - After Issue CN203367130U (en) | 2013-07-27 | 2013-07-27 | Arc extinguishing coil of gas insulated load switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203367130U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2013
- 2013-07-27 CN CN 201320450761 patent/CN203367130U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20131225 Effective date of abandoning: 20151118 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |