CN102938345A - Three-position isolating-grounding switch - Google Patents
Three-position isolating-grounding switch Download PDFInfo
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- CN102938345A CN102938345A CN2012104472695A CN201210447269A CN102938345A CN 102938345 A CN102938345 A CN 102938345A CN 2012104472695 A CN2012104472695 A CN 2012104472695A CN 201210447269 A CN201210447269 A CN 201210447269A CN 102938345 A CN102938345 A CN 102938345A
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- contact
- end conductor
- grounding
- sliding contact
- quiet end
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Abstract
The invention discloses a three-position isolating-grounding switch. The three-position isolating-grounding switch comprises a moving end conductor, an grounding insulator, a grounding contact, a sliding contact, a static end conductor, a static end contact, a casing and a transmission rotary shaft. The grounding contact, the sliding contact and the static end contact are arranged on the same axis in sequence. The grounding contact is installed on the casing through the grounding insulator, the static end contact is connected with the static end conductor, the sliding contact is connected with the moving end conductor, and the static end conductor and the moving end conductor are respectively fixed on the casing and are insulated. A rack is embedded into the sliding contact, the transmission rotary shaft is provided with a gear matched with the rack, can drive the sliding contact to perform straight-line reciprocating motion along the axis, enable the sliding contact to be connected with the grounding contact or the static end contact, and can be not contacted with the grounding contact and the static end contact at the middle position. The three-position isolating-grounding switch achieves mechanical interlocking and improves the reliability.
Description
Technical field
The present invention relates to the power transmission and distribution technical field, relate in particular to a kind of isolation-Grunding switch gear device.
Background technology
The 126kV Cubicle Gas-Insulated Switchgear adopts split-type structural with isolating switch and earthed switch at present, need to drive isolating switch and earthed switch with two mechanisms respectively, the three kinds of operating states in loop realize by the co-operate of isolation-earthed switch, and adopt electrical interlock between isolation and the earthed switch.Former isolation is electrically connected the aspect and adopts Mume flower contact or self-support type contact with earthed switch major loop and grounded circuit, the contact size is large, and electric conductivity is not high, and isolation-earthed switch module size is difficult to control.
Summary of the invention
The three station isolation-earthed switches that the present invention aims to provide have been realized the mechanical interlocking of isolation-earthed switch, improve reliability, reduce the contact size, improve electric conductivity.
For achieving the above object, the present invention realizes by the following technical solutions:
Three station isolation-earthed switches disclosed by the invention comprise moved end conductor, ground insulation, grounding contact, sliding contact, quiet end conductor, quiet end contact, housing, drive shaft; Described grounding contact, sliding contact, quiet end contact arrangement are arranged on same axis successively; Grounding contact is installed on the housing by ground insulation, and quiet end contact links to each other with quiet end conductor, and sliding contact links to each other with the moved end conductor, and quiet end conductor and moved end conductor are separately fixed on the housing and insulation; Described sliding contact is embedded with tooth bar, drive shaft is provided with the gear that matches with this tooth bar, drive shaft can drive sliding contact and do the linear pattern reciprocating motion along axis, so that sliding contact can be connected with grounding contact or with quiet end contact, can in the centre position, all not contact with grounding contact, quiet end contact yet.
Further, described grounding contact, quiet end contact and quiet end conductor, sliding contact and moved end conductor respectively have three groups, are arranged in order; Three sliding contacts link to each other with same drive shaft by rack-and-pinion, three sliding contacts synchronizing moving under same power transmission shaft drives.
Further, described sliding contact tilts to be installed in the housing; Make construction of switch compacter, volume is less.
Preferably, described moved end conductor, quiet end conductor, grounding contact adopt aluminum alloy low-pressure casting spare.
Preferably, described housing is the aluminum alloy casing of low pressure casting.
Further, being electrically connected material between described sliding contact and moved end conductor, quiet end conductor, the grounding contact is screw-contact.
Preferably, described drive shaft adopts insulating material to make.
Further, described drive shaft links to each other with motor.
Further, described drive shaft closely cooperates by the gear of key and corresponding transmission mechanism.
Preferably, the angle of described sliding contact inclination installation is 45 degree; Make bearing distribution more reasonable.
Working method of the present invention is as follows: sliding contact and quiet end contact are main combined floodgate station when connecting, the sliding contact centre position, and with grounding contact, when quiet end contact does not all contact being is the ground connection station when isolating station, sliding contact and grounding contact connection; Three three station isolation-earthed switches share a drive shaft, drive sliding contact by same transmission mechanism and move, and can guarantee the synchronism of three-phase.
The present invention has improved the Whole Equipment electric conductivity, has reduced the overall dimensions of isolation-earthed switch module, has realized the mechanical interlocking of isolation-earthed switch, has solved the stationary problem of three isolated-earthed switches, improves the reliability of isolation-earthed switch.
Description of drawings
Fig. 1 is structural representation of the present invention.
Among the figure: 1-moved end conductor, 2-ground insulation, 3-grounding contact, 4-sliding contact, the quiet end conductor of 5-, the quiet end contact of 6-, 7-housing, 8-drive shaft.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing, the present invention is further elaborated.
As shown in Figure 1, three station isolation-earthed switches disclosed by the invention comprise moved end conductor 1, ground insulation 2, grounding contact 3, sliding contact 4, quiet end conductor 5, quiet end contact 6, housing 7, drive shaft 8; Grounding contact 3, sliding contact 4, quiet end contact 6 are arranged on the same axis, arrange successively; Grounding contact 3 is installed on the housing 7 by ground insulation 2, and quiet end contact 6 links to each other with quiet end conductor 5, and sliding contact 4 links to each other with moved end conductor 1, and quiet end conductor 5 and moved end conductor 1 are separately fixed on the housing 7 and insulation; Sliding contact 4 is embedded with tooth bar, drive shaft 8 is provided with the gear that matches with this tooth bar, drive shaft 8 can drive sliding contact 4 and do the linear pattern reciprocating motion along axis, so that sliding contact 4 can be connected with grounding contact 3 or with quiet end contact 6, can in the centre position, all not contact with grounding contact, quiet end contact yet.
Further, grounding contact 3, quiet end contact 6 respectively have three groups with quiet end conductor 5, sliding contact 4 with moved end conductor 1, are arranged in order; Three sliding contacts 4 link to each other with same drive shaft 8 by rack-and-pinion, three sliding contacts 4 synchronizing moving under same power transmission shaft 8 drives.
Further, sliding contact 4 tilts to be installed in the housing 7; Make construction of switch compacter, volume is less.
Preferably, moved end conductor 1, quiet end conductor 5, grounding contact 3 adopt aluminum alloy low-pressure casting spare.
Preferably, housing 7 is the aluminum alloy casing of low pressure casting.
Further, being electrically connected material between sliding contact 4 and moved end conductor 1, quiet end conductor 5, the grounding contact 3 is screw-contact.
Preferably, drive shaft 8 adopts insulating material to make.
Further, drive shaft 8 links to each other with motor.
Further, drive shaft 8 closely cooperates by the gear of key and corresponding transmission mechanism.
Preferably, the angle of sliding contact 4 inclination installations is 45 degree; Make bearing distribution more reasonable.
Certainly; the present invention also can have other various embodiments; in the situation that do not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art can make according to the present invention various corresponding changes and distortion, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (10)
1. a station isolation-earthed switch is characterized in that: comprise moved end conductor (1), ground insulation (2), grounding contact (3), sliding contact (4), quiet end conductor (5), quiet end contact (6), housing (7), drive shaft (8); Described grounding contact (3), sliding contact (4), quiet end contact (6) are arranged on the same axis, arrange successively; Grounding contact (3) is installed on the housing (7) by ground insulation (2), quiet end contact (6) links to each other with quiet end conductor (5), sliding contact (4) links to each other with moved end conductor (1), and quiet end conductor (5) and moved end conductor (1) are separately fixed at housing (7) upward and insulation; Described sliding contact (4) is embedded with tooth bar, drive shaft (8) is provided with the gear that matches with this tooth bar, drive shaft (8) can drive sliding contact (4) and do the linear pattern reciprocating motion along axis, so that sliding contact (4) can be connected with grounding contact (3) or with quiet end contact (6), can in the centre position, all not contact with grounding contact, quiet end contact yet.
2. three station isolation-earthed switches according to claim 1 is characterized in that: described grounding contact (3), quiet end contact (6) respectively have three groups with quiet end conductor (5), sliding contact (4) with moved end conductor (1), are arranged in order; Three sliding contacts (4) link to each other with same drive shaft (8) by rack-and-pinion, and three sliding contacts (4) are synchronizing moving under same power transmission shaft (8) drives.
3. three station isolation-earthed switches according to claim 1 and 2 is characterized in that: described sliding contact (4) tilts to be installed in the housing (7).
4. three station isolation-earthed switches according to claim 1 is characterized in that: described moved end conductor (1), quiet end conductor (5), grounding contact (3) employing aluminum alloy low-pressure casting spare.
5. three station isolation-earthed switches according to claim 1, it is characterized in that: described housing (7) is the aluminum alloy casing of low pressure casting.
6. three station isolation-earthed switches according to claim 1 is characterized in that: being electrically connected material between described sliding contact (4) and moved end conductor (1), quiet end conductor (5), the grounding contact (3) is screw-contact.
7. described three station isolation-earthed switches is characterized in that: the making of described drive shaft (8) employing insulating material according to claim 1-2.
8. three station isolation-earthed switches according to claim 7, it is characterized in that: described drive shaft (8) links to each other with motor.
9. three station isolation-earthed switches according to claim 8, it is characterized in that: described drive shaft (8) closely cooperates by the gear of key and corresponding transmission mechanism.
10. three station isolation-earthed switches according to claim 3 is characterized in that: the angle that described sliding contact (4) tilts to install is 45 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104472695A CN102938345A (en) | 2012-11-09 | 2012-11-09 | Three-position isolating-grounding switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104472695A CN102938345A (en) | 2012-11-09 | 2012-11-09 | Three-position isolating-grounding switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102938345A true CN102938345A (en) | 2013-02-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104472695A Pending CN102938345A (en) | 2012-11-09 | 2012-11-09 | Three-position isolating-grounding switch |
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| CN (1) | CN102938345A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103151212A (en) * | 2013-02-25 | 2013-06-12 | 贵州中泉电气集团有限公司 | Loop self-locking load switch |
| CN103560428A (en) * | 2013-10-18 | 2014-02-05 | 青岛特锐德电气股份有限公司 | Cable tank and GIS device |
| CN106206145A (en) * | 2016-08-31 | 2016-12-07 | 青岛特锐德电气股份有限公司 | Pre-install adjustable three station isolation grounding device, GIS device and assemble method |
| CN106847579A (en) * | 2017-02-28 | 2017-06-13 | 山东达驰高压开关有限公司 | A kind of 252kV three-stations |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2060595U (en) * | 1989-12-09 | 1990-08-15 | 大连劳动保护仪器厂 | Explosion-proof leakage protector |
| CN1173727A (en) * | 1996-08-13 | 1998-02-18 | Abb.专利有限公司 | Isolating/earthing switch for metal-encapsulated, gas-insulated high-voltage switchgear |
| CN201170993Y (en) * | 2008-02-20 | 2008-12-24 | 江苏省如高高压电器有限公司 | Tri-station insulation ground switch |
| CN201315266Y (en) * | 2008-11-17 | 2009-09-23 | 平高集团有限公司 | Static contact of grounding switch |
| CN201387835Y (en) * | 2009-03-17 | 2010-01-20 | 现代重工(中国)电气有限公司 | Switchgear for high-voltage enclosed-type assembled electrical appliance |
| CN102024606A (en) * | 2010-12-16 | 2011-04-20 | 上海思源高压开关有限公司 | Three-station isolation ground switch |
-
2012
- 2012-11-09 CN CN2012104472695A patent/CN102938345A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2060595U (en) * | 1989-12-09 | 1990-08-15 | 大连劳动保护仪器厂 | Explosion-proof leakage protector |
| CN1173727A (en) * | 1996-08-13 | 1998-02-18 | Abb.专利有限公司 | Isolating/earthing switch for metal-encapsulated, gas-insulated high-voltage switchgear |
| CN201170993Y (en) * | 2008-02-20 | 2008-12-24 | 江苏省如高高压电器有限公司 | Tri-station insulation ground switch |
| CN201315266Y (en) * | 2008-11-17 | 2009-09-23 | 平高集团有限公司 | Static contact of grounding switch |
| CN201387835Y (en) * | 2009-03-17 | 2010-01-20 | 现代重工(中国)电气有限公司 | Switchgear for high-voltage enclosed-type assembled electrical appliance |
| CN102024606A (en) * | 2010-12-16 | 2011-04-20 | 上海思源高压开关有限公司 | Three-station isolation ground switch |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103151212A (en) * | 2013-02-25 | 2013-06-12 | 贵州中泉电气集团有限公司 | Loop self-locking load switch |
| CN103560428A (en) * | 2013-10-18 | 2014-02-05 | 青岛特锐德电气股份有限公司 | Cable tank and GIS device |
| CN103560428B (en) * | 2013-10-18 | 2016-04-27 | 青岛特锐德电气股份有限公司 | cable tank and GIS device |
| CN106206145A (en) * | 2016-08-31 | 2016-12-07 | 青岛特锐德电气股份有限公司 | Pre-install adjustable three station isolation grounding device, GIS device and assemble method |
| CN106206145B (en) * | 2016-08-31 | 2018-06-01 | 青岛特锐德电气股份有限公司 | Pre-install adjustable three stations isolation earthing or grounding means, GIS device and assemble method |
| CN106847579A (en) * | 2017-02-28 | 2017-06-13 | 山东达驰高压开关有限公司 | A kind of 252kV three-stations |
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Application publication date: 20130220 |