CN102254712A - Transformer capacity-regulation switch high-voltage contact - Google Patents
Transformer capacity-regulation switch high-voltage contact Download PDFInfo
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- CN102254712A CN102254712A CN2011101991898A CN201110199189A CN102254712A CN 102254712 A CN102254712 A CN 102254712A CN 2011101991898 A CN2011101991898 A CN 2011101991898A CN 201110199189 A CN201110199189 A CN 201110199189A CN 102254712 A CN102254712 A CN 102254712A
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- contact
- fixed contact
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- transformer capacity
- switch high
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Abstract
The invention discloses a transformer capacity-regulation switch high-voltage contact, belongs to a capacity-regulating switch component matched with a power transformer. The transformer capacity-regulation switch high-voltage contact comprises a moving contact radially fixed on a rotating shaft of the transformer capacity-regulation switch high-voltage contact, fixed contacts fixed on a transformer capacity-regulation switch insulating cylinder through a bolt nut fastener and matched with the moving contact, and an external conducting wire connected with a base part of the fixed contact, wherein each fixed contact is composed of a fixed contact seat forming the base part of the fixed contact, the bolt nut fastener penetrating the fixed contact seat, an upper fixed contact plate, a lower fixed contact plate and elastic steel reeds, wherein the upper fixed contact plate and the lower fixed contact plate are fixed on an upper surface and a lower surface of the fixed contact seat through the fastener and fastened into a duckbill shape, and the elastic steel reeds fixed on and cover the upper surface and the lower surface of the upper fixed contact plate and the lower fixed contact plate through the fastener while the fastener fix the fixed contact. By practice, compared with the existing transformer capacity-regulation switch high-voltage contact, the fitting clamping reliability between the fixed contact and the moving contact is improved, the probability of virtual connection is greatly reduced, and the service life is prolonged by more than two times.
Description
Technical field
The invention belongs to the capacity transfer switch block that is matched in power transformer, particularly a kind of transformer capacity transfer switch high-pressure contact.
Background technology
Existing transformer capacity transfer switch high-pressure contact, all adopt structure as shown in Figure 2, comprise the moving contact 01 that radially is fixed in the rotating shaft of transformer capacity transfer switch high-pressure contact, be fixed on the transformer capacity transfer switch insulation tube through the bolt and nut securing member, be matched with the fixed contact 02 of moving contact, be connected in the external wire 03 of fixed contact base portion, fixed contact is by the stationary contact headstock 021 that constitutes its base portion, pass the bolt and nut securing member 022 of stationary contact headstock, be fixed on the stationary contact headstock through securing member, on the following two sides, and on synthetic jaw shape, following fixed contact sheet 023, on, following fixed contact sheet one end is fixed on the stationary contact headstock through securing member, through securing member fixedly the fixed contact sheet time, also through this securing member last, following fixed contact sheet one end is fixed with stage clip 024 and constitutes.
This jaw shape fixed contact of prior art because stage clip only exerts pressure to the end that upper and lower fixed contact sheet is fixed in the stationary contact headstock, there is no the effect of exerting pressure to the associated jaw portion of its other end and moving contact clamping in actual use.The associated jaw portion of itself and moving contact clamping, the crimp force and the moving contact clamping that only rely on upper and lower fixed contact sheet that synthetic jaw shape is produced.The problem that the cooperation clamping of this dynamic and static contact exists is: one because upper and lower fixed contact sheet is less to the crimp force that synthetic jaw shape produces, is difficult to reach the requirement of reliable fit clamping; Its two, along with the increase of the cooperation clamping number of times of dynamic and static contact, the less copper upper and lower fixed contact sheet of coefficient of elasticity is easy to occur elastic fatigue, necessary crimp force when losing the moving contact clamping.So, the inreal virtual connection phenomenon that realizes cooperating clamping between the dynamic and static contact appears on the one hand, and caused whole transformer capacity transfer switch to lose the serious consequence of capacity transfer function; Shortened dramatically the useful life of transformer capacity transfer switch high-pressure contact component on the other hand again.
This shows, study and design a kind of the raising and cooperate the clamping reliability between the dynamic and static contact, and the transformer capacity transfer switch high-pressure contact that has effectively prolonged useful life is necessary.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, study and design a kind of the raising and cooperate the clamping reliability between the dynamic and static contact, and the transformer capacity transfer switch high-pressure contact that has effectively prolonged useful life.
The technical scheme that realizes the object of the invention is: a kind of transformer capacity transfer switch high-pressure contact, comprise the moving contact that radially is fixed in the rotating shaft of transformer capacity transfer switch high-pressure contact, be fixed on the transformer capacity transfer switch insulation tube through the bolt and nut securing member, be matched with the fixed contact of moving contact, be connected in the external wire of fixed contact base portion, it is characterized in that described fixed contact is by the stationary contact headstock that constitutes its base portion, pass the bolt and nut securing member of stationary contact headstock, be fixed on the stationary contact headstock through securing member, on the following two sides, and on synthetic duckbill, following fixed contact sheet, through securing member fixedly the fixed contact sheet time, also through this securing member last, on the following fixed contact sheet, lower surface fixedly is coated with the Elastic Steel reed and constitutes.
Purpose of the present invention can also take following further technical measures to realize:
Described Elastic Steel reed fixedly is covered in the upper and lower surface of upper and lower fixed contact sheet through securing member, is meant that the bolt of securing member passes an end of Elastic Steel reed, allows full wafer Elastic Steel reed be closely attached on the upper and lower surface of upper and lower fixed contact sheet.The technique effect of this design is owing to adopted the bigger steel Elastic Steel reed of coefficient of elasticity, allow full wafer Elastic Steel reed be closely attached on the upper and lower surface of upper and lower fixed contact sheet again, just make the upper and lower fixed contact sheet of the duck bill hole part of fixed contact and moving contact clamping, obtain higher inside crimp force from the upper and lower Elastic Steel reed that is adjacent to, when fixed contact and moving contact clamping, produce the technique effect of reliable fit clamping.
The inner surface of the upper and lower fixed contact sheet of described one-tenth duckbill cooperates the part of clamping moving contact, and design has inwardly protruded upper and lower contact respectively.The technique effect of this design is when fixed contact and moving contact clamping, produces the technique effect of further reliable fit clamping.
The base portion of described moving contact is fixed in the high-voltage contact rotating shaft, and the front portion that its cooperation is contacted with the fixed contact sheet is designed to flat duck tongue shaped.The front part sides edge designs of the fixed contact sheet of the flat duck tongue shaped of described one-tenth becomes the circular-arc of no corner angle.The technique effect of these two designs is: the technique effect that has on the one hand guaranteed to reach when moving contact and the fixed contact clamping reliable fit clamping from shaped design; On the other hand, the edge does not have the moving contact of flat duck tongue shaped of corner angle and the fixed contact clamping process of duck bill hole shape, can reduce the wearing and tearing to upper and lower fixed contact sheet, thereby effectively prolong the useful life of whole transformer capacity transfer switch high-pressure contact.
The thickness of the flat duck tongue shaped of described moving contact front portion, the distance of interference fit between the upper and lower surface of fixed contact sheet.The technique effect of this design is to guarantee to realize reliable interference fit, thereby reach the technique effect of reliable fit clamping when moving contact and fixed contact clamping.
The transformer capacity transfer switch high-pressure contact that the invention process obtains has shown following beneficial effect through trying out:
1, improved cooperation clamping reliability between the dynamic and static contact.Owing to adopted the bigger steel Elastic Steel reed of coefficient of elasticity, allow again on full wafer Elastic Steel reed is closely attached on, on the following fixed contact sheet, lower surface, just make fixed contact and moving contact clamping duck bill hole part on, following fixed contact sheet, from last, the Elastic Steel reed that is adjacent to down obtains higher inside crimp force, only rely on less copper of coefficient of elasticity with the high-voltage contact of prior art, following fixed contact sheet, less crimp force to synthetic jaw shape generation, and on copper, elastic fatigue appears in following fixed contact sheet easily, necessary crimp force when losing and occur moving to the moving contact clamping, the virtual connection phenomenon is compared between the fixed contact, not only realize the technique effect of height reliable fit clamping, and significantly reduced the possibility that virtual connection occurs.
2, prolonged useful life significantly.As mentioned above, the present invention has realized the technique effect of height reliable fit clamping on the one hand, and has significantly reduced the possibility that virtual connection occurs; The edge does not have the moving contact of flat duck tongue shaped of corner angle and the fixed contact clamping process of duck bill hole shape on the other hand, wearing and tearing have been reduced to upper and lower fixed contact sheet, effectively prolonged the useful life of whole transformer capacity transfer switch high-pressure contact from two aspects, warp is preliminary to be tested, and compares with the high-voltage contact of prior art to increase the service life more than 2 times.
Description of drawings
Fig. 1 is the schematic diagram that meets thematic structure of the present invention; Fig. 2 is the transformer capacity transfer switch high-pressure structure of contact terminal schematic diagram of prior art.
Embodiment
Below in conjunction with accompanying drawing implementation detail of the present invention is described as follows:
As shown in Figure 1, a kind of transformer capacity transfer switch high-pressure contact, comprise the moving contact 1 that radially is fixed in the rotating shaft of transformer capacity transfer switch high-pressure contact, be fixed on the transformer capacity transfer switch insulation tube through the bolt and nut securing member, be matched with the fixed contact 2 of moving contact, be connected in the external wire 3 of fixed contact base portion, it is characterized in that described fixed contact is by the stationary contact headstock 21 that constitutes its base portion, pass the bolt and nut securing member 22 of stationary contact headstock, be fixed on the stationary contact headstock through securing member, on the following two sides, and on synthetic duckbill, following fixed contact sheet 23, through securing member fixedly the fixed contact sheet time, also through this securing member last, on the following fixed contact sheet, lower surface fixedly is coated with Elastic Steel reed 24 and constitutes.
Described Elastic Steel reed 24 fixedly is covered in upper and lower fixed contact sheet 23 upper and lower surfaces through securing member 22, is meant that the bolt of securing member passes an end of Elastic Steel reed, allows full wafer Elastic Steel reed be closely attached on the upper and lower surface of upper and lower fixed contact sheet.
The inner surface of the upper and lower fixed contact sheet 23 of described one-tenth duckbill cooperates the part of clamping moving contact 1, and design has inwardly protruded upper and lower contact 231 respectively.
The base portion of described moving contact 1 is fixed in the high-voltage contact rotating shaft, and the front portion that its cooperation is contacted with fixed contact sheet 23 is designed to flat duck tongue shaped.
The front part sides edge designs of the fixed contact sheet 23 of the flat duck tongue shaped of described one-tenth becomes the circular-arc of no corner angle.
The thickness of described moving contact 1 flat duck tongue shaped front portion, the distance of interference fit between fixed contact sheet 23 upper and lower surfaces.
Claims (6)
1. transformer capacity transfer switch high-pressure contact, comprise the moving contact (1) that radially is fixed in the rotating shaft of transformer capacity transfer switch high-pressure contact, be fixed on the transformer capacity transfer switch insulation tube through the bolt and nut securing member, be matched with the fixed contact (2) of moving contact, be connected in the external wire (3) of fixed contact base portion, it is characterized in that fixed contact is by the stationary contact headstock (21) that constitutes its base portion, pass the bolt and nut securing member (22) of stationary contact headstock, be fixed on the stationary contact headstock through securing member, on the following two sides, and on synthetic duckbill, following fixed contact sheet (23), through securing member fixedly the fixed contact sheet time, also through this securing member last, on the following fixed contact sheet, lower surface fixedly is coated with Elastic Steel reed (24) and constitutes.
2. transformer capacity transfer switch high-pressure contact according to claim 1, it is characterized in that described Elastic Steel reed (24) fixedly is covered in the upper and lower surface of upper and lower fixed contact sheet (23) through securing member (22), be meant that the bolt of securing member passes an end of Elastic Steel reed, allow full wafer Elastic Steel reed be closely attached on the upper and lower surface of upper and lower fixed contact sheet.
3. transformer capacity transfer switch high-pressure contact according to claim 1, the inner surface that it is characterized in that the upper and lower fixed contact sheet (23) of described one-tenth duckbill cooperates the part of clamping moving contact (1), and design has inwardly protruded upper and lower contact (231) respectively.
4. transformer capacity transfer switch high-pressure contact according to claim 1 is characterized in that the base portion of described moving contact (1) is fixed in the high-voltage contact rotating shaft, and the front portion that its cooperation is contacted with fixed contact sheet (23) is designed to flat duck tongue shaped.
5. transformer capacity transfer switch high-pressure contact according to claim 4 is characterized in that the front part sides edge designs of the fixed contact sheet (23) of the flat duck tongue shaped of described one-tenth becomes the circular-arc of no corner angle.
6. according to claim 1 or 4 described transformer capacity transfer switch high-pressure contacts, it is characterized in that the thickness of the flat duck tongue shaped of described moving contact (1) front portion, the distance of interference fit between the upper and lower surface of fixed contact sheet (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101991898A CN102254712A (en) | 2011-07-18 | 2011-07-18 | Transformer capacity-regulation switch high-voltage contact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101991898A CN102254712A (en) | 2011-07-18 | 2011-07-18 | Transformer capacity-regulation switch high-voltage contact |
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| Publication Number | Publication Date |
|---|---|
| CN102254712A true CN102254712A (en) | 2011-11-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101991898A Pending CN102254712A (en) | 2011-07-18 | 2011-07-18 | Transformer capacity-regulation switch high-voltage contact |
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| CN (1) | CN102254712A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106067396A (en) * | 2015-04-21 | 2016-11-02 | Abb技术有限公司 | For the fixed contact of shunting switch and for the method that cable connector is installed on it |
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|---|---|---|---|---|
| CN1175070A (en) * | 1996-07-19 | 1998-03-04 | Abbsace股份公司 | Electric breaker with demountable contacter |
| CN2935446Y (en) * | 2006-08-14 | 2007-08-15 | 河南森源电气股份有限公司 | Contact finger structure of outdoor isolating switch |
| CN201134363Y (en) * | 2007-12-29 | 2008-10-15 | 中国北车集团大同电力机车有限责任公司 | Stationary contact component of isolation switch |
| CN201226322Y (en) * | 2008-07-14 | 2009-04-22 | 河南森源电气股份有限公司 | Knife-touching compacting structure for isolating switch |
| CN201256103Y (en) * | 2008-08-11 | 2009-06-10 | 瓦房店高压开关有限公司 | External pressing contact tip mechanism |
| CN201302942Y (en) * | 2008-11-03 | 2009-09-02 | 江苏省如高高压电器有限公司 | Conductive loop contact finger structure of disconnecting switch |
| CN201655562U (en) * | 2009-09-03 | 2010-11-24 | 闫淼江 | Finger-shaped contact assembly for a high voltage isolator |
| WO2011082528A1 (en) * | 2010-01-08 | 2011-07-14 | 库柏电子科技(上海)有限公司 | Moving contact for oil-immersed load switch |
| CN202142432U (en) * | 2011-07-18 | 2012-02-08 | 句容华源电器设备有限公司 | Capacity-regulation switch high-voltage contact for transformer |
-
2011
- 2011-07-18 CN CN2011101991898A patent/CN102254712A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1175070A (en) * | 1996-07-19 | 1998-03-04 | Abbsace股份公司 | Electric breaker with demountable contacter |
| CN2935446Y (en) * | 2006-08-14 | 2007-08-15 | 河南森源电气股份有限公司 | Contact finger structure of outdoor isolating switch |
| CN201134363Y (en) * | 2007-12-29 | 2008-10-15 | 中国北车集团大同电力机车有限责任公司 | Stationary contact component of isolation switch |
| CN201226322Y (en) * | 2008-07-14 | 2009-04-22 | 河南森源电气股份有限公司 | Knife-touching compacting structure for isolating switch |
| CN201256103Y (en) * | 2008-08-11 | 2009-06-10 | 瓦房店高压开关有限公司 | External pressing contact tip mechanism |
| CN201302942Y (en) * | 2008-11-03 | 2009-09-02 | 江苏省如高高压电器有限公司 | Conductive loop contact finger structure of disconnecting switch |
| CN201655562U (en) * | 2009-09-03 | 2010-11-24 | 闫淼江 | Finger-shaped contact assembly for a high voltage isolator |
| WO2011082528A1 (en) * | 2010-01-08 | 2011-07-14 | 库柏电子科技(上海)有限公司 | Moving contact for oil-immersed load switch |
| CN202142432U (en) * | 2011-07-18 | 2012-02-08 | 句容华源电器设备有限公司 | Capacity-regulation switch high-voltage contact for transformer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106067396A (en) * | 2015-04-21 | 2016-11-02 | Abb技术有限公司 | For the fixed contact of shunting switch and for the method that cable connector is installed on it |
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Application publication date: 20111123 |