CN202084455U - Misoperation prevention isolating switch of transformer station - Google Patents
Misoperation prevention isolating switch of transformer station Download PDFInfo
- Publication number
- CN202084455U CN202084455U CN2011202010090U CN201120201009U CN202084455U CN 202084455 U CN202084455 U CN 202084455U CN 2011202010090 U CN2011202010090 U CN 2011202010090U CN 201120201009 U CN201120201009 U CN 201120201009U CN 202084455 U CN202084455 U CN 202084455U
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- transmission shaft
- connecting lever
- power transmission
- drive link
- swing
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Abstract
The utility model relates to electronic equipment, in particular to a misoperation prevention isolating switch of a transformer station, which comprises a transmission shaft (9) of a main switch knife of the isolating switch and a transmission rod (3) of a power side grounding knife, wherein the transmission shaft (9) and the transmission rod (3) stand parallelly. The misoperation prevention isolating switch is characterized in that a linkage rod (16) is arranged between the transmission shaft (9) and the transmission rod (3), the transmission shaft (9) and the transmission rod (3) are provided with a crank arm extending outwards respectively, one of the crank arms is a fixed crank arm (19) fixedly connected with the transmission shaft (9) or the transmission rod (3), the other crank arm is a swinging crank arm (17) slidably connected with the transmission shaft (9) or the transmission rod (3), a limit frame (18) for limiting vertical moving and horizontal swinging of the swinging crank arm (17) is fixedly connected with the transmission shaft (9) or the transmission rod (3) which is mounted the swinging crank arm (17), one end of the linkage rod (16) is hinged to the outer end of the fixed crank arm (19), and the other end of the linkage rod (16) is hinged to the outer end of the swinging crank arm (17). The misoperation prevention isolating switch has the advantages that the power side grounding knife cannot be switched on when the main knife is switched on, so that accident potential dangers are eliminated, and the isolating switch has important effect on guaranteeing normal running of transformation facilities.
Description
Technical field
The utility model relates to a kind of power equipment, promptly a kind of anti-misoperation substation isolating-switch.
Background technology
High voltage isolator is the visual plant of transformer station, and its effect is to implement the joint of power supply and power transmission sequence or blocking-up action, and transformer station delivers to the next stage power transmission sequence by isolating switch later with the high-tension electricity transformation that the upper level circuit is sent here.The GY17-220/2500A type isolating switch more with present domestic consumption is example, its general structure is: two electric posts of existing side by side are arranged, one is stood on mains side, another root stands on and send electric side, on mains side electricity post, support a cover power supply fixed contact by the support porcelain vase of a string setting, on send the electric post of electric side the porcelain vase that two strings are existed side by side is housed, a string is the load-bearing porcelain vase that supports the main switch cutter, and another string is to drive the transmission porcelain vase that the main switch cutter is implemented expansion or jackknife action.The bottom of transmission porcelain vase is connected to the power transmission shaft of setting, and the power transmission shaft lower end enters headstock, and headstock is fixed on the bottom of sending electric side electricity post.On both sides electricity post, be equipped with the ground disconnecting link, respectively by operating mechanism and drive link control ground disconnecting link with ground wire deciliter.In the plant maintenance process, the ground disconnecting link needs ground connection sometimes, sometimes can not ground connection, do not allow operating mistake, and if operate wrongly, will cause a serious accident.At present, send the ground disconnecting link of electric side to realize interlock, misoperation can not occur, and between the ground disconnecting link and main switch cutter of mains side,, exist the possibility of misoperation because the action request more complicated can't realize interlock with the main switch cutter.Therefore, electric industry department can only rely on people such as operational procedure to prevent misoperation for measure, has increased manpower burden and job costs, and accident potential is not eliminated yet.
Summary of the invention
The purpose of this utility model provides a kind of substation isolating-switch that can avoid main switch cutter and ground disconnecting link misoperation to occur.
Above-mentioned purpose is realized by following technical scheme: develop a kind of anti-misoperation substation isolating-switch, comprise the power transmission shaft of the isolated switch main plug-in strip of existing side by side and the drive link of mains side ground disconnecting link, be characterized in: be provided with gangbar between the drive link of the power transmission shaft of said main switch cutter and mains side ground disconnecting link, a connecting lever that stretches out laterally respectively is housed on the drive link of the power transmission shaft of main switch cutter and mains side ground disconnecting link, one of them connecting lever is the fixedly connecting lever that is connected with power transmission shaft or drive link, another connecting lever is the swing connecting lever that is slidingly connected with power transmission shaft or drive link, on power transmission shaft or drive link that the swing connecting lever is installed, the cover restriction swing connecting lever that is connected moves up and down the position-limited rack with horizontal pivot angle, the outer end of one end of gangbar and fixing connecting lever is hinge mutually, and the outer end of the other end and swing connecting lever is hinge mutually.
By sliding sleeve the swing Abduction arm that stretches out laterally is housed on the power transmission shaft of said main switch cutter, and the cover restriction swing connecting lever that is connected moves up and down the position-limited rack with horizontal pivot angle, be fixed with the fixedly Abduction arm that stretches out laterally on the drive link of mains side ground disconnecting link, the outer end of one end of gangbar and fixing connecting lever is hinge mutually, and the outer end of the other end and swing connecting lever is hinge mutually.
Said position-limited rack has two snap rings that are connected mutually with power transmission shaft, one is the last snap ring that is contained in above the sliding sleeve of swinging connecting lever, another is the following snap ring that is contained in below the sliding sleeve of swing Abduction arm, each snap ring all has an overhanging galianconism, galianconism is shorter in length than the swing connecting lever, and the gag lever post of setting is equipped with in the outer end of two galianconism.
Said position-limited rack has a following snap ring that is connected mutually with power transmission shaft, be contained in swing connecting lever sliding sleeve below, following snap ring has an overhanging galianconism, galianconism is shorter in length than the swing connecting lever, the outer end of galianconism is fixed with the gag lever post of setting.
The beneficial effects of the utility model are: when the main switch cutter closed a floodgate, mains side ground disconnecting link can not close a floodgate, thereby has eliminated accident potential, removed staff's burden, and it is ingenious to have structure, easy to operate, characteristics such as with low cost have great importance for the normal operation that guarantees transformation facility.
Description of drawings
Fig. 1 is the gate-dividing state front view of first kind of embodiment;
Fig. 2 is the "on" position partial view of first kind of embodiment;
Fig. 3 is the assembling front view of the gangbar of first kind of embodiment;
Fig. 4 is the assembling plan view of the gangbar of first kind of embodiment;
Fig. 5 is the parts swing connecting lever of first kind of embodiment and the installation diagram of position-limited rack;
Fig. 6 is the front view of the parts position-limited rack of first kind of embodiment;
Fig. 7 is the vertical view of the parts position-limited rack of first kind of embodiment;
Fig. 8 is the front view of the parts swing connecting lever of first kind of embodiment;
Fig. 9 is the vertical view of the parts swing connecting lever of first kind of embodiment;
Figure 10 is the fixing installation diagram of connecting lever of parts of first kind of embodiment;
Figure 11 is the fixing front view of connecting lever of parts of first kind of embodiment;
Figure 12 is the fixing vertical view of connecting lever of parts of first kind of embodiment;
Figure 13 is the vertical view of first kind of operating state of first kind of embodiment gangbar;
Figure 14 is the vertical view of second kind of operating state of first kind of embodiment gangbar;
Figure 15 is the vertical view of first kind of the third operating state of embodiment gangbar;
Figure 16 is the installation diagram of the parts position-limited rack of second kind of embodiment;
Figure 17 is the front view of the parts position-limited rack of second kind of embodiment;
Figure 18 is the left view of the parts position-limited rack of second kind of embodiment;
Figure 19 is the vertical view of the parts position-limited rack of second kind of embodiment;
Figure 20 is the vertical view of the parts position-limited rack of the third embodiment;
Figure 21 is the vertical view of the parts position-limited rack of the 4th kind of embodiment.
Among the figure as seen: mains side electricity post 1, ground lock operation panel 2, drive link 3, mains side ground disconnecting link 4, support porcelain vase 5, power supply fixed contact 6 send electric side electricity post 7, main switch cutter headstock 8, and power transmission shaft 9 send electric side ground disconnecting link drive link 10, send electric side ground disconnecting link 11, load-bearing porcelain vase 12, transmission porcelain vase 13 send electric wire 14, main switch cutter 15, gangbar 16, swing connecting lever 17, position-limited rack 18, fixedly connecting lever 19, last snap ring 20, following snap ring 21, galianconism 22, gag lever post 23, sliding sleeve 24, hinge-rod 25, snap ring 26.
Embodiment
First kind of embodiment: Fig. 1 introduces a kind of at the more GY17-220/2500A type isolating switch of transformer station's application, on mains side electricity post (1), support a cover power supply fixed contact (6) by supporting porcelain vase (5), in mains side electricity post (1) one side ground lock operation panel (2) is housed, be provided with motor and speed change parts in the case, and upwards pick out drive link (3), by drive link (3) handle mains side ground disconnecting link (4) with deciliter action ground wire.Sending an electric side to be provided with to send electric side electricity post (7), send electric side electricity post (7) bottom that main switch cutter headstock (8) is housed, be provided with motor and speed change parts in the case, and upwards pick out power transmission shaft (9), the two string porcelain vases of existing side by side above electricity post (7), a string is load-bearing porcelain vase (12), another string is the transmission porcelain vase (13) that is connected with power transmission shaft (9), extensible or the folding main switch cutter (15) of assembling above the load-bearing porcelain vase (12), the stretching, extension of main switch cutter (15) or jackknife action are realized by transmission mechanism by transmission porcelain vase (13).The lower end of main switch cutter (15) picks out send electric wire (14).Send electric side electricity post (7) one sides also to be provided with the ground disconnecting link of controlling by drive link (10) (11).Main switch cutter (15) among Fig. 1 is folded state, just gate-dividing state.Main switch cutter shown in Figure 2 is extended configuration, and main switch cutter (15) front end engages with fixed contact (6), i.e. "on" position, and electric current is sent to the next stage user by sending electric wire (14).
As from the foregoing, this isolating switch is equipped with ground disconnecting link (4) and (11) with ground wire deciliter on both sides electricity posts (1) and (7), respectively by operating mechanism and drive link (3) or (10) control disconnecting links (4) or (10) deciliter.In the plant maintenance process, the ground disconnecting link needs ground connection sometimes, sometimes can not ground connection, if operating mistake will cause major accident.In order to prevent misoperation fault, when product export, send the drive link (10) of electric side ground disconnecting link to realize interlocking with the power transmission shaft (9) of main switch cutter, misoperation can not appear.And between mains side ground disconnecting link drive link (3) and the main switch cutter drive shaft (9),, also do not have linkage at present because of the action relationships more complicated.Action relationships between main switch cutter (15) and the mains side ground disconnecting link (4) has following four kinds of combinations: 1. main switch cutter branch, ground disconnecting link branch; 2. the main switch cutter closes, ground disconnecting link branch; 3. main switch cutter branch, the ground disconnecting link closes; 4. the main switch cutter closes, and the ground disconnecting link closes.Wherein, first three kind all is the combination of actions of using always, and the 4th kind of combination then is equivalent to high voltage short circuit, is absolute prohibition, in case occur causing catastrophic consequence.In addition, the combined floodgate of the drive link (3) of the power transmission shaft of main switch cutter (9) and mains side ground disconnecting link or separating brake turn to and are contrary, and promptly to turn to be counter clockwise direction to the combined floodgate of power transmission shaft (9), and separating brake turns to clockwise, the combined floodgate of drive link (3) turns to clockwise, and separating brake turns to counterclockwise.Obviously, will realize that the interlock of second and third kind combination of actions is easily between power transmission shaft (9) and the drive link (3), problem is, keep first kind of combination, realize that interlock just has been difficult to.
At this problem, this example has installed the linkage that a cover has selection function additional between the drive link (3) of the power transmission shaft (9) of main switch cutter and mains side ground disconnecting link, and so-called the selection is exactly just interlock when needing interlock, just do not link in the time of should not linking.In conjunction with Fig. 3,4 as seen, this suit is equipped with between a horizontal and power transmission shaft (9) and the drive link (3), and length-adjustable gangbar (16).Gangbar (16) two ends respectively with power transmission shaft (9) and drive link (3) by connecting lever hinge mutually, in conjunction with Fig. 5,10 as seen, two connecting levers all are the flat rod members of stretching, the end of outer end and gangbar (16) is hinge mutually.Different is, connecting lever on the drive link (3) is to be fixed on fixedly connecting lever (19) on the drive link (3) by the snap ring (26) shown in Figure 11,12, and the connecting lever on the power transmission shaft (9) then is to be enclosed within swing connecting lever (17) on the power transmission shaft (9) by the sliding sleeve (24) shown in Fig. 8,9.Obviously, there is one to be rotating in two connecting levers, can't realize the interlock of power transmission shaft (9) and drive link (3), for this reason, in conjunction with Fig. 5,6,7 as seen, also be provided with a cover position-limited rack (18) on power transmission shaft (9), position-limited rack (18) is fixed on the power transmission shaft (9) by last snap ring (20) and following snap ring (21), and the sliding sleeve (24) of swing connecting lever (17) is contained in up and down between the snap ring (20) and (21), can not move up and down.Respectively there is an overhanging galianconism (22) snap ring (20) and (21) up and down, and gag lever post (23) is equipped with in the outer end perforate of galianconism (22) in the hole.During assembling, determine the angle of galianconism (22) earlier, make it to adapt to the work pivot angle that closes a floodgate by separating brake that snap ring is fixed on the power transmission shaft (9) up and down again with power transmission shaft (9) and drive link (3).At this moment, because galianconism (22) is shorter than swing connecting lever (17), and be located at the outside of swing Abduction arm (17), gag lever post (23) can limit swing connecting lever (17) angle of rotation clockwise.So far, a kind of have the linkage of selection function promptly to constitute.
Figure 13,14,15 has represented three kinds of operating states of above-mentioned linkage respectively: first kind as shown in figure 13, main switch cutter (15) and ground disconnecting link (4) all are in the branch position, its course of action has two kinds: a kind of is to move on basis as shown in figure 14, be that original main switch cutter (15) is in and closes the position, ground disconnecting link (4) is in the branch position, as long as operation power transmission shaft (15) clockwise rotates; Another kind is to do in basic enterprising action as shown in figure 15, and promptly original main switch cutter (15) is in the branch position, and ground disconnecting link (4) is in and closes the position, as long as drive link (4) rotates counterclockwise.As seen, power transmission shaft (9) and drive link (4) all do not link when realizing both sides' separating brake combination of actions.Second kind is as shown in figure 14, and main switch cutter (15) closes a floodgate, and ground disconnecting link (4) separating brake also has two kinds of course of action: the one, and originally two locks are in the branch position all as shown in figure 13, close the position as long as power transmission shaft (9) rotates counterclockwise to arrive, also not very interlock.The 2nd, originally as shown in figure 15, power transmission shaft (9) drive link (3) closes the position, and power transmission shaft is reversed, and promotes swing connecting lever (17) and drive gangbar (16) and promote drive link (3) and rotate counterclockwise and could realize, this should belong to interlock.The third as shown in figure 15, main switch cutter branch, the ground disconnecting link closes, if the position of original as Figure 14, drive link (3) clockwise rotates and promotes to swing Abduction arm (17) by gangbar (16) and link in the same way together with power transmission shaft (9) and get final product.If position originally as shown in figure 13, then, also not very link as long as drive link (3) is all done together with two connecting levers and clockwise rotated.This shows that the lock position of three kinds of needs of work can realize, what forbid only is that main switch cutter (15) and ground disconnecting link (4) exist together and close the state of position, has promptly reached the purpose of stopping misoperation.
Second kind of embodiment: shown in Figure 16,17,18,19, position-limited rack (18) only has a following snap ring (21), be contained in sliding sleeve (24) below, following snap ring (21) one sides also have overhanging galianconism (22), galianconism (22) is held the gag lever post (23) of the setting that is connected, and also can play the effect that restriction sliding sleeve (24) glides and connecting lever (17) corner is swung in restriction.This example explanation, the embodiment of position-limited rack (18) has multiple, but all should belong to the technical scheme that is equal to.
The third embodiment: as shown in figure 20, install and fix connecting lever (19) on the power transmission shaft of main switch cutter (9), the drive link (3) of mains side ground disconnecting link is gone up swing connecting lever (17) and position-limited rack (18) is installed, and also can reach identical purpose, all should belong to the technical scheme that is equal to first kind of embodiment.
The 4th kind of embodiment: if turn to relation different between power transmission shaft (9) and the drive link (3) with first kind of embodiment, adopt structure as shown in figure 21, gangbar (16) is inclined on the horizontal plane, also can reach fool proof purpose, all should belong to the technical scheme that is equal to.
Claims (4)
1. anti-misoperation substation isolating-switch, comprise the power transmission shaft (9) of the isolated switch main plug-in strip of existing side by side and the drive link (3) of mains side ground disconnecting link, it is characterized in that: be provided with gangbar (16) between said power transmission shaft (9) and the drive link (3), on power transmission shaft (9) and the drive link (3) connecting lever that stretches out laterally is housed respectively, one of them connecting lever is the fixedly connecting lever (19) that is connected with power transmission shaft (9) or drive link (3), another connecting lever is the swing connecting lever (17) that is slidingly connected with power transmission shaft (9) or drive link (3), on power transmission shaft (9) or drive link (3) that swing connecting lever (17) is installed, the cover restriction swing connecting lever (17) that is connected moves up and down the position-limited rack (18) with horizontal pivot angle, the outer end of one end of gangbar (16) and fixing connecting lever (19) is hinge mutually, and the outer end of the other end and swing connecting lever (17) is hinge mutually.
2. anti-misoperation substation isolating-switch according to claim 1, it is characterized in that: the power transmission shaft of said main switch cutter (9) is gone up and by sliding sleeve (24) the swing Abduction arm (17) that stretches out laterally is housed, and the cover restriction swing connecting lever (17) that is connected moves up and down the position-limited rack (18) with horizontal pivot angle, be fixed with the fixedly Abduction arm (19) that stretches out laterally on the drive link (3) of mains side ground disconnecting link, the outer end of one end of said gangbar (16) and fixing connecting lever (19) is hinge mutually, and the outer end of the other end and swing connecting lever (17) is hinge mutually.
3. anti-misoperation substation isolating-switch according to claim 2, it is characterized in that: said position-limited rack (18) has two snap rings (26) that are connected mutually with power transmission shaft (9), one is the top last snap ring (20) of sliding sleeve (24) that is contained in swing connecting lever (17), another is the following following snap ring (21) of sliding sleeve (24) that is contained in swing Abduction arm (17), each snap ring all has an overhanging galianconism (22), galianconism (22) is shorter in length than swing connecting lever (17), and the gag lever post (23) of setting is equipped with in the outer end of two galianconism (22).
4. anti-misoperation substation isolating-switch according to claim 2, it is characterized in that: said position-limited rack (18) has a following snap ring (21) that is connected mutually with power transmission shaft (9), be contained in below the sliding sleeve (24) of swinging connecting lever (17), following snap ring (21) has an overhanging galianconism (22), galianconism (22) is shorter in length than swing connecting lever (17), and the outer end of galianconism (22) is fixed with the gag lever post (23) of setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202010090U CN202084455U (en) | 2011-06-15 | 2011-06-15 | Misoperation prevention isolating switch of transformer station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202010090U CN202084455U (en) | 2011-06-15 | 2011-06-15 | Misoperation prevention isolating switch of transformer station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202084455U true CN202084455U (en) | 2011-12-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202010090U Expired - Lifetime CN202084455U (en) | 2011-06-15 | 2011-06-15 | Misoperation prevention isolating switch of transformer station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202084455U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102280280A (en) * | 2011-06-15 | 2011-12-14 | 内蒙古东部电力有限公司通辽电业局 | Anti-misoperation transformer station isolation switch |
| CN102938344A (en) * | 2012-12-09 | 2013-02-20 | 安徽省电力公司蚌埠供电公司 | Disconnector misoperation prevention device |
-
2011
- 2011-06-15 CN CN2011202010090U patent/CN202084455U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102280280A (en) * | 2011-06-15 | 2011-12-14 | 内蒙古东部电力有限公司通辽电业局 | Anti-misoperation transformer station isolation switch |
| CN102938344A (en) * | 2012-12-09 | 2013-02-20 | 安徽省电力公司蚌埠供电公司 | Disconnector misoperation prevention device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111221 |
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| CX01 | Expiry of patent term |