CN101320649B - 35kV outdoor AC isolation switch - Google Patents
35kV outdoor AC isolation switch Download PDFInfo
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- CN101320649B CN101320649B CN2008100625816A CN200810062581A CN101320649B CN 101320649 B CN101320649 B CN 101320649B CN 2008100625816 A CN2008100625816 A CN 2008100625816A CN 200810062581 A CN200810062581 A CN 200810062581A CN 101320649 B CN101320649 B CN 101320649B
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- contact
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- underframe
- hinged
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Abstract
A 35kV outdoors alternating current isolation switch is used for deciliter conversion of power circuit. The isolation switch comprises a under frame, an insulator, a connecting plate, a contact knife, an insulating tension pole, a crank and a rotating shaft; the under frame is provided with a ground contact; one end of the contact knife is hinged with the connecting plate; the other end is in contactable link with an income contact provided on the connecting plate, and is in contactable link with the ground contact on the under frame; middle of the contact knife is hinged with the upper end of the insulating tension pole; the lower end of the insulating tension pole is hinged with the crank; the crank is fixed with the rotating shaft provided on the under frame; the rotating shaft is a universal driving shaft permeating three phase; a spring is connected between the crank and the ground contact on the under frame. The invention not only realizes three phase breaking or closing brake by only once action, but also breaks off ground when closes brake, and realizes the three phase ground at breaking brake; and the isolation switch has the characters of low manufacturing cost, high safe reliability, good mechanical strength and long service life.
Description
Technical field
The present invention relates to the electric switch technical field, especially relate to the high-pressure air circuit breaker of no arc extinguishing or flash guard.
Background technology
In the power transmission and transforming equipment of electric power system, isolating switch is the visual plant of realizing dividing, close conversion line and guaranteeing interruption maintenance safety, the isolating switch that on the power transmission and transformation line of 35kV voltage, uses at present; Existing usefulness is once moved and is realized that three link; But for safety, leading-out terminal also must ground connection behind the separating brake, therefore all gets to join plug-in strip in addition and be used for realizing three-phase ground connection; Increased cost of manufacture, and operated and be not very convenient.
Summary of the invention
The objective of the invention is in order to overcome the deficiency of prior art, provide a kind of need once to move and not only can realize the three-phase separating brake or the interlock of closing a floodgate, when closing a floodgate, break off ground connection simultaneously, realize the 35kV outdoor AC isolation switch of three-phase ground connection during separating brake.
The objective of the invention is to realize like this: a kind of 35kV outdoor AC isolation switch, a underframe is arranged, fixed insulation on the underframe, insulator divide the turnover line two rows, and the turnover line is three-phase, and therefore every row has 3 insulators; On every phase insulator terminal block is housed, connects the turnover line respectively; On every underframe that passes in and out mutually between the line insulator, be provided with grounding contact; Every top that passes in and out mutually between the line insulator is provided with contact knife; The fixing terminal block in this contact knife one end and outlet insulator top is hinged; The inlet wire contact of the terminal block that the other end and inlet wire insulator top are fixing becomes can contact connection, and becomes can contact connection with grounding contact on the underframe; Be hinged with edge pull bar upper end at the contact knife middle part, the hinged crank in the bottom of insulated tension pole, this crank fixes with the rotating shaft that is installed on the underframe, and said rotating shaft is the universal driving shaft that runs through three-phase, fitting operation handle on this universal driving shaft; Be connected spring between the grounding contact on said crank and the underframe.
Its course of action is such: when separating brake, pull handle, universal driving shaft makes with its fixing three-phase crank and rotates simultaneously, and through with the hinged insulated tension pole of crank contact knife being left behind, after crank rotate in place, contact knife was just in time connected with grounding contact; In like manner, when closing a floodgate, pull handle in the other direction, crank is rotated, contact knife closes with the inlet wire contact after breaking away from grounding contact.
Owing to adopted technique scheme; A kind of 35kV outdoor AC isolation switch of the present invention; Only need once action can realize that not only three-phase divides or combined floodgate, when closing a floodgate, break off ground connection simultaneously, can realize three-phase ground connection during separating brake; And it is low to have cost of manufacture, and security reliability is high, mechanical strength is good, the characteristics of long service life.
Description of drawings
Below in conjunction with accompanying drawing the present invention is further described.
Fig. 1 is a structural representation of the present invention.
Among the figure: 1, underframe, 2, insulator, 3, terminal block, 4, grounding contact, 5, contact knife, 6, the inlet wire contact, 7, insulated tension pole, 8, crank, 9, rotating shaft, 10, handle, 11, spring.
Embodiment
Claims (1)
1. a 35kV outdoor AC isolation switch has a underframe (1), and fixed insulation (2) on the underframe, insulator divide the turnover line two rows, and the turnover line is three-phase, and every row has 3 insulators; Terminal block (3) is housed on every phase insulator, connects the turnover line respectively, it is characterized in that: on every underframe that passes in and out mutually between the line insulator, be provided with grounding contact (4); Every top that passes in and out mutually between the line insulator is provided with contact knife (5); This contact knife one end and terminal block (3) are hinged; The inlet wire contact (6) that is provided with on the other end and the terminal block becomes can contact connection, and the other end of this contact knife also with underframe on grounding contact (4) one-tenth can contact connection; In hinged insulated tension pole (7) upper end, contact knife middle part, the hinged crank in bottom (8) of insulated tension pole (7), this crank (8) fixes with the rotating shaft (9) that is installed on the underframe; Said rotating shaft (9) is the universal driving shaft that runs through three-phase, handle installation on this universal driving shaft (10); Be connected spring (11) between the grounding contact (4) on said crank (8) and the underframe.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2008100625816A CN101320649B (en) | 2008-06-17 | 2008-06-17 | 35kV outdoor AC isolation switch |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2008100625816A CN101320649B (en) | 2008-06-17 | 2008-06-17 | 35kV outdoor AC isolation switch |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101320649A CN101320649A (en) | 2008-12-10 |
CN101320649B true CN101320649B (en) | 2012-01-11 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN2008100625816A Active CN101320649B (en) | 2008-06-17 | 2008-06-17 | 35kV outdoor AC isolation switch |
Country Status (1)
Country | Link |
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CN (1) | CN101320649B (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105958423B (en) * | 2016-06-08 | 2018-04-06 | 国网冀北电力有限公司唐山供电公司 | The mechanism of arrester in groups and its application method of a kind of mechanical linkage |
CN108010785A (en) * | 2017-11-01 | 2018-05-08 | 王亚苹 | A kind of switchable electric wire connecting junction of power grid list rocking arm |
CN112750651A (en) * | 2021-01-08 | 2021-05-04 | 西安金叶电力科技有限公司 | Indoor 35kV heavy current isolator |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2494555Y (en) * | 2001-04-28 | 2002-06-05 | 国营云南开关厂 | Outdoor high-voltage isolating switch |
US6723939B2 (en) * | 2002-09-11 | 2004-04-20 | Eaton Corporation | Isolation switch for electric power systems |
CN2708482Y (en) * | 2003-12-18 | 2005-07-06 | 杜玉庆 | Three phase linkage AC high-voltage switchgear |
CN201210461Y (en) * | 2008-06-17 | 2009-03-18 | 宁波鹿鼎电子科技有限公司 | 35kV outdoor AC high isolating switch |
-
2008
- 2008-06-17 CN CN2008100625816A patent/CN101320649B/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2494555Y (en) * | 2001-04-28 | 2002-06-05 | 国营云南开关厂 | Outdoor high-voltage isolating switch |
US6723939B2 (en) * | 2002-09-11 | 2004-04-20 | Eaton Corporation | Isolation switch for electric power systems |
CN2708482Y (en) * | 2003-12-18 | 2005-07-06 | 杜玉庆 | Three phase linkage AC high-voltage switchgear |
CN201210461Y (en) * | 2008-06-17 | 2009-03-18 | 宁波鹿鼎电子科技有限公司 | 35kV outdoor AC high isolating switch |
Also Published As
Publication number | Publication date |
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CN101320649A (en) | 2008-12-10 |
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