CN101536279A - Switchgear - Google Patents
Switchgear Download PDFInfo
- Publication number
- CN101536279A CN101536279A CNA2007800423733A CN200780042373A CN101536279A CN 101536279 A CN101536279 A CN 101536279A CN A2007800423733 A CNA2007800423733 A CN A2007800423733A CN 200780042373 A CN200780042373 A CN 200780042373A CN 101536279 A CN101536279 A CN 101536279A
- Authority
- CN
- China
- Prior art keywords
- ejector
- circuit breaker
- switchgear
- interlock
- shifting axle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/12—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal
- H02B11/127—Withdrawal mechanism
- H02B11/133—Withdrawal mechanism with interlock
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/28—Earthing arrangements
Abstract
A switchgear having an interlock function for blocking movement of a circuit breaker to the connecting position side when an earth switch is in a closed state at the disconnect position of the circuit breaker. When the circuit breaker (11) is at the disconnect position, an ES interlock cam (37) fixed to an ES operation spindle (22) is rotated by an operation for closing the earth switch (ES) by rotating the ES operation spindle (22). An ES interlock lever (36) interlocked with that rotary operation is thereby driven and rotated to press and move a draw-out device interlock frame (32), and its distal end engages with a protrusion (31) provided on the moving shaft (25) of the draw-out device, thus blocking rotation of the moving shaft (25).
Description
Technical field
The present invention relates to the switchgear of the circuit breaker of built-in extraction, particularly relate to the interlock of circuit breaker and earthed switch.
Background technology
As the interlock of in the past switchgear, for example disclosing has a kind of structure as follows: in the switchgear that comprises extraction circuit breaker and earthed switch, the interlocking device of main circuit equipment and door is set, only Men Caihui opens when breaker chamber is inner uncharged.In view of the above, only Men Caihui opens when circuit breaker is forwards drawn and is positioned at open position, only under this state, the earthed switch interlock plate of front that is arranged on the driving shaft of earthed switch is opened, and could insert operating grip, and earthed switch can break-make.In addition, be positioned at open position at circuit breaker, when earthed switch disconnected, the circuit breaker interlock plate that is positioned at the front of circuit breaker shifting axle was closed, and stoped lever operatedly, made circuit breaker can not move to on-position (for example with reference to patent documentation 1).
Patent documentation 1: the Japan Patent spy opens 2002-135919 communique (the 2nd page, Fig. 2-Figure 16)
Summary of the invention
In the interlock of the switchgear in the past shown in the patent documentation 1, because the on-position of switch and the circuit breaker of door and the interlocking device of open position, the interlocking device of circuit breaker and earthed switch is made of many parts such as axle, connecting rod, connecting plate, lockplate, pins in addition, so have complex structure, make and the time-consuming bothersome such problem of assembling adjustment.The problem that also exists is in addition: for example because the misoperation of forgetting the extracting operator of etc.ing of operating grip, and appearance can not be guaranteed safe situation.
The present invention does for solving aforesaid problem, and it is a kind of simple in structure that its purpose is to provide, and has the interlock of circuit breaker and earthed switch at the open position of circuit breaker, can also prevent the switchgear of forgetting misoperations such as extracting of operating grip.
Switchgear involved in the present invention comprises: in the inside of metal housing, rotate the ejector that moves up in the front and back of housing by making shifting axle; Lift-launch on ejector, the circuit breaker that can between on-position that is connected with main circuit and the open position that leaves from main circuit, move; And operation axis is rotated from the front side of housing, carry out the earthed switch (being designated hereinafter simply as ES) of make-break operation, when circuit breaker is positioned at open position, by making the connection direction rotation of operation axis to ES, the ES interlock cam rotation affixed with operation axis, with this rotation interlock, drive the ES blocking lever, because this driving, an end that is arranged on the ejector interlocking framework on the ejector is pressed, the other end engages with jut on the shifting axle that is arranged on ejector, stops the rotation of shifting axle.
According to switchgear of the present invention, because when circuit breaker is positioned at open position, by making the action of operation axis to the connection direction rotation of ES, ES interlock cam, ES blocking lever, ejector interlocking framework move in linkage, the front end of ejector interlocking framework engages with the jut on the shifting axle that is arranged on ejector, stop the rotation of shifting axle, so if circuit breaker is positioned at open position, ES is switched on, then can stop circuit breaker to the on-position side shifting, can realize the interlock of circuit breaker and earthed switch with simple structure.
Description of drawings
Fig. 1 is the structure chart of the related switchgear of expression embodiments of the present invention 1.
Fig. 2 is corresponding with Fig. 1 (b), is the figure of the major part of the sectional view of expression circuit breaker when being positioned at open position.
Fig. 3 is the ejector vertical view cutaway drawing partly that expression is observed from the A-A line of Fig. 1, is the figure that the expression circuit breaker is positioned at the state of on-position.
Fig. 4 is the ejector vertical view cutaway drawing partly that expression is observed from the A-A line of Fig. 1, is the figure that the expression circuit breaker is positioned at the state of open position.
Fig. 5 is the cutaway view of observing from the B-B line of Fig. 4, the figure when being expression ES disconnection.
Fig. 6 is the cutaway view of observing from the B-B line of Fig. 4, the figure when being expression ES connection.
Fig. 7 is the related switchgear major part vertical view cutaway drawing of execution mode 2.
Fig. 8 is the C-C line side cross sectional view along Fig. 7.
Fig. 9 is the D-D line side cross sectional view along Fig. 7.
Figure 10 is the E-E line side cross sectional view along Fig. 7, the figure when being the expression closing gate.
Figure 11 is the E-E line side cross sectional view along Fig. 7, is the figure of expression gate when opening.
Figure 12 is the link rod plate of Fig. 7 and the stereogram of ES blocking lever part.
Figure 13 is the detail view of the ES blocking lever of Fig. 7.
Embodiment
Fig. 1 is the structure chart of the related switchgear of expression embodiments of the present invention 1, (a) is front view, (b) is sectional view.In addition, Fig. 2 is corresponding with Fig. 1 (b), is the side partial cross-sectional of circuit breaker when being positioned at open position.
The overall structure of switchgear at first is described according to Fig. 1.Switchgear 1 integral body of metal-enclosed type is covered by metal housing 2, and the front side is provided with upper portion door 3, middle department 4, the lower gate 5 that can carry out switch by hinge shown in figure (a).
The inside of housing 2 is divided into a plurality of compartments, the inboard of upper portion door 3 is control rooms 6, and the inboard of middle department 4 is breaker chambers 7, and the rear side of the inboard of lower gate 5 from the bottom of breaker chamber 7 to housing 2 is cable vault 8, in addition, the top of the rear side of breaker chamber 7 is main bus bar chambers 9.
In control room 6, taking in control appliance (not shown).
In breaker chamber 7, taking in the circuit breaker 11 of the extraction that the ejector 10 of circuit breaker carried, can draw to the front side.On the rear wall of breaker chamber 7, be set with bus bar side lining 12 that is built-in with the portion that opens circuit that is connected with circuit breaker 11 or disconnects in inside and the cable side lining 13 that similarly constitutes with the form that separates predetermined distance up and down, can be connected, disconnect with the outstanding splicing ear 14 that is arranged on circuit breaker 11 back sides.
The three-phase main bus bar 15 that is supported insulator 16 supportings is accommodated in the main bus bar chamber 9, is connected with bus bar side lining 12 by fork bus 17.
On the other hand, for example when maintenance, inspection etc., the operator is positioned at open position shown in Figure 2 by circuit breaker 11 is drawn to the front side from on-position shown in Figure 1, can leave from two linings 12,13, and ES21 can connect.
In addition, the internal structure of housing 2 shown in Figure 1 is an example, is not limited to the configuration structure among the figure.
Next the deriving structure of circuit breaker 11 is described.
Fig. 3 and Fig. 4 are the vertical view of expression from the part of the ejector 10 of the A-A line observation of Fig. 1, and Fig. 3 is the state that expression circuit breaker 11 is positioned at on-position, and Fig. 4 is the state that expression circuit breaker 11 is positioned at open position.
If the breaker operator mouth 27 insertion breaker operator handles 28 from being positioned at the front central portion as Fig. 1 (a) shown in rotate it as shown by arrows, then chassis 23 moves to front direction.Because circuit breaker 11 carries integratedly on chassis 23, break away from from two linings 12,13 so can make at the outstanding splicing ear 14 of the rear side of circuit breaker 11, circuit breaker 11 is opened circuit.Breaker operator handle 28 is further rotated, when making chassis 23 move to the front side fully, is becoming the state of Fig. 4, be open position herein.
If circuit breaker 11 is in the state that remains on open position, then can operate ES21 (because this interlocking and the present patent application do not have direct relation, so omit explanation).The operation of ES21 is that the ES gathering hole 29 from housing 2 fronts inserts ES operating grip 30 shown in Fig. 1 (a), ES operation axis 22 is rotated carry out.The rotating drive power of ES operation axis 22 is passed to ES21 by bar and connecting rod, and its blade is rotated as illustrated in fig. 2.Fig. 2 represents to connect the state of ES21.
The major part that next invention of present embodiment is described is the interlocking device of circuit breaker 11 and ES21.Fig. 5 is the cutaway view of observing from the B-B line of Fig. 4, and when expression ES disconnected, Fig. 6 was the cutaway view of observing from the B-B line of Fig. 4 equally, when expression ES connects.
As Fig. 3～shown in Figure 6, near the front end of shifting axle 25, wait and be connected with jut 31 by welding.So jut 31 is along with the rotation of shifting axle 25 is rotated together.
On the other hand, be provided with ejector interlocking framework 32 in chassis 23 1 sides.This ejector interlocking framework 32 has the otch 32a of U font at front end shown in the partial enlarged drawing of Fig. 5, this otch 32a engages with the groove of alignment pin 33 on the mounting panel that is arranged on chassis 23 1 sides slidably.The other end (right side among the figure) slidably with the lateral frame that is arranged on chassis 23 on pore 23a chimeric.And, when ejector interlocking framework 32 is flat by spring 34 (with reference to Fig. 3) right side application of force in figure.Therefore, under this state, even if make shifting axle 25 rotations, the jut 31 of its front can not interfere with each other with the front end of ejector interlocking framework 32 yet.
When chassis 23 is positioned at open position as shown in Figure 4, corresponding with the position of the ejector of chassis 23 interlocking framework 32, as shown in Figure 5, be that fulcrum is provided with ES blocking lever 36 rotationally with the bolster on the installation portion that is arranged on housing 2 one sides 35.In addition, corresponding with this ES blocking lever 36, be connected with ES interlock cam 37 at the correspondence position of ES operation axis 22.
When ES21 was " disconnection ", ES interlock cam 37 was positioned at direction shown in Figure 5, and at this moment, ES blocking lever 36 rotates to clockwise direction in the drawings owing to the weight of self, is in the state that leans against on the above-mentioned cam 37.If make ES operation axis 22 to connecting direction, i.e. rotation counterclockwise, then also to rotation counterclockwise, ES blocking lever 36 is raised ES interlock cam 37, drives to rotation counterclockwise.Because this drives, push the press section that ejector interlocking framework 32 is set on the leading section of ES blocking lever 36, moves to the left in the drawings, and its leading section can engage with the jut 31 of shifting axle 25.Connect and finish then to become state shown in Figure 6.
It is as follows to sum up this interlocking action.
When circuit breaker 11 is positioned at open position, with the ON Action interlock of ES21,37 rotations of ES interlock cam, ES blocking lever 36 is raised, ejector interlocking framework 32 is pressed into the left side, and the jut 31 of its leading section and shifting axle 25 interferes with each other, and stops the rotation of shifting axle 25.
That is, when circuit breaker 11 was positioned at open position, if connect ES21, then circuit breaker 11 can't carry out to the shift action of on-position side.
As mentioned above, invention according to present embodiment, because when circuit breaker is positioned at open position, rotate to the connection direction of ES by the operation axis that makes ES, the ES interlock cam rotation affixed with operation axis, ES blocking lever and this rotation are driven in linkage, this driving is pressed an end of the ejector interlocking framework that is arranged on the ejector, the other end engages with jut on the shifting axle that is arranged on ejector, stop the rotation of shifting axle, so be positioned at open position at circuit breaker, if connect ES, then can stop circuit breaker mistakenly to the on-position side shifting, guarantee safety, can be with simple structure, realize the interlock of circuit breaker and earthed switch compactly.
Fig. 7 is the major part vertical view cutaway drawing of the related switchgear of execution mode 2, is the enlarged drawing of right side, the front corner portion of Fig. 3 of execution mode 1 or Fig. 4, and expression is positioned at bottom-right ES operation axis 22 parts of ejector 10.Fig. 8 is the C-C line side cross sectional view along Fig. 7; Fig. 9 is the D-D line side cross sectional view along Fig. 7; Figure 10 and Figure 11 are the E-E line side cross sectional view along Fig. 7.Because the overall structure of switchgear is identical with Fig. 1 of execution mode 1, so explanation is omitted.In addition, ejector, ES operating mechanism and both interlockings are also identical with execution mode 1, at same section mark prosign.The invention of present embodiment is further to have added the interlock that the following describes on the basis of the structure of execution mode 1.
As implement explanation in the mode 1, the wall of the front of housing 2 is provided with ES gathering hole 29, makes ES operating grip 30 can insert ES operation axis 22.Therefore, in the present embodiment, the gate 38 with ES gathering hole 29 switches is set at the rear of being close to the shell wall side that is formed with ES gathering hole 29, between the moving of the switch of this gate 38 and circuit breaker, interlocking is set.
Be provided with manually operated handgrip 39 in the front side of gate 38, the side-prominent overleaf connecting pin 40 that is provided with.In addition because return spring 41, gate 38 under common state by to the direction application of force that clogs ES gathering hole 29.
Be used for switch motion with gate 38 and be passed to the connecting rod rod 42 of ES blocking lever 36 1 sides at rear by housing 2 pivot suspensions.The holding section 42a of one end of connecting rod rod 42 is formed with the otch of U font, and the connecting pin 40 of gate 38 engages with this otch slidably.In addition, the holding section 42b of the other end of connecting rod rod 42 also is same shape, and as shown in figure 10, this holding section 42b engages slidably with connecting pin 44 on being arranged on link rod plate 43.The 43a of slotted hole portion of link rod plate 43 can be slidingly by housing 2 one side bearings.Rear side at link rod plate 43 forms the rake 43b of inclination.
On the other hand, the same with execution mode 1, be provided with ES interlock cam 37 at ES operation axis 22, be provided with ES blocking lever 36 with its corresponding shell side.ES blocking lever 36 is equal to execution mode 1 basically, but also is provided with the engagement pin 45 that is slidingly fastened with above-mentioned rake 43b.
Figure 12 is the stereogram of expression link rod plate 43 and ES blocking lever 36 parts.Expression opens the sluices 38 action midway among the figure.
Based on Fig. 7～Figure 12 action is described.
Under the state that gate 38 " is closed ", gate 38 is positioned at the state of Fig. 8, and connecting rod rod 42 and link rod plate 43 are positioned at the state of Figure 10.If insertion ES operating grip and gate 38 is moved to left in the drawings, open ES gathering hole 29, then connecting pin 40 also can move to left, pitman shaft 42 is to rotation counterclockwise.As shown in figure 12, if pitman shaft 42 rotates to the direction of arrow, then link rod plate 43 moves in the drawings to the left.In view of the above, because the rake 43b of link rod plate 43, the engagement pin 45 of ES blocking lever 36 is pushed downwards, and ES blocking lever 36 is that fulcrum drives to counter clockwise direction with bolster 35, becomes state shown in Figure 11.The same with execution mode 1 afterwards, ejector interlocking framework 32 is pushed to left, and its leading section engages with the jut 31 of the front that is arranged on shifting axle 25, stops the rotation of shifting axle 25.
Above-mentioned a series of action can irrespectively be carried out with the motion that is arranged on the ES interlock cam 37 on the ES operation axis 22.Promptly can irrespectively implement with " connection ", " disconnection " of ES21.
Like this, when circuit breaker 11 was positioned at open position, if open the gate 38 of ES gathering hole 29, then its action was transmitted by connecting rod rod 42, link rod plate 43, ES blocking lever 36, ejector interlocking framework 32, stop the rotation of shifting axle 25, do not allow circuit breaker 11 to move to on-position.So, being inserted at ES operating grip 30 under the state of ES gathering hole 29, shifting axle 25 can not rotate.
Figure 13 is the figure of the details of expression ES blocking lever 36, (a) is front view, (b) is end view.As shown in the figure, with respect to bar body 36a, it is that cam engaging adjustment part 36c split forms that adjustment part 36b and cam holding section are promptly pushed in the press section, uses bolt.
Because respectively separated structure supportings such as ES interlock cam 37 and ES blocking lever 36, ejector interlocking framework 32, shifting axle 25, so for interlocking device is moved smoothly, need adjust the correlation between them when assembling, the time of adjusting action need is longer.By constituting ES blocking lever 36 as mentioned above, when assembling, can adjust the press section of ES blocking lever 36 and the snap-fit relationship of cam holding section and offside accurately.
The holding section that engages with ES interlock cam 37 of ES blocking lever 36 (part shown in the wave-like line of Figure 13 (b)) formed the plane when in addition, ES21 was arranged in " disconnection " side.Similarly, the holding section of ES interlock cam 37 also forms the plane.By like this, both can keep reliable, stable buckle state for the face contact under the buckle state.
In addition, the structure of aforesaid ES blocking lever also can be applied to the switchgear of execution mode 1.But under the situation of execution mode 1, do not need engagement pin 45.
In addition, though adjust cumbersomely, pushing adjustment part 36b and cam engaging adjustment part 36c can not be the parts that split forms, and also can one constitute.
As mentioned above, invention according to present embodiment, but the gate of switch is set at the ES gathering hole place of the front surface that is formed at housing for the operating grip of the operation axis that inserts ES, when circuit breaker is positioned at open position, by gate is moved to opening direction, drive blocking lever and ejector interlocking framework by linkage ES, its leading section is engaged with the jut of shifting axle, stop the rotation of shifting axle, so except the effect of execution mode 1, when circuit breaker was positioned at open position, if open the sluices, circuit breaker can not move to on-position.So, for example after the open position of circuit breaker moves to connection with ES from disconnection, extract the ES operating grip even forget, also can stop circuit breaker to move, thereby can prevent owing to forget and extract handle and in the moving of on-position or at on-position, ES is being carried out the such misoperation of opening operation to on-position.
In addition, because in the ES blocking lever, use the parts that form with the split of bar body part to constitute the cam holding section of pushing the press section of ejector interlocking framework and engage with the ES interlock cam, and utilize bolt to tighten the press section and cam holding section, adjusting with respect to the bar body part, so can adjust the press section of ES blocking lever and the snap-fit relationship of cam holding section and offside accurately, assembling adjustment becomes simple.
In addition, because also the holding section with ES blocking lever and ES interlock cam forms the plane, make its maintenance face contact under the buckle state,, can provide switchgear with the higher interlocking device of reliability so both can reliably, stably keep the buckle state under the buckle state.
Claims (4)
1. switchgear comprises: in the inside of metal housing, and the ejector that moves up in the front and back of described housing by shifting axle is rotated; Lift-launch on this ejector, the circuit breaker that can between on-position that is connected with main circuit and the open position that leaves from described main circuit, move; And operation axis is rotated from the front side of described housing, and the earthed switch that carries out make-break operation is designated hereinafter simply as ES, and described switchgear is characterised in that,
When described circuit breaker is positioned at described open position, by making of the connection direction rotation of described operation axis to described ES, the ES interlock cam rotation affixed with described operation axis, with this rotation interlock, drive the ES blocking lever, because this drives, an end that is arranged on the ejector interlocking framework on the described ejector is pressed, the other end engages with jut on the described shifting axle that is arranged on described ejector, stops the rotation of described shifting axle.
2. switchgear as claimed in claim 1, it is characterized in that, but the gate of switch is set at the ES gathering hole place of the front surface that is formed at described housing for the operating grip that inserts described operation axis, when described circuit breaker is positioned at described open position, by described gate is moved to opening direction, drive described ES blocking lever by linkage, because this driving, an end that is arranged on the described ejector interlocking framework on the described ejector is pressed, the other end engages with jut on the described shifting axle that is arranged on described ejector, stops the rotation of described shifting axle.
3. switchgear as claimed in claim 1 or 2, it is characterized in that, in the described ES blocking lever, the cam holding section of pushing the press section of described ejector interlocking framework and engaging with described ES interlock cam is to be made of the parts that form with the split of bar body part, and being connected with bolt with respect to the form that described bar body part is adjusted the described press section and the installation site of described cam holding section.
4. switchgear as claimed in claim 1 or 2 is characterized in that, the holding section of described ES blocking lever and described ES interlock cam forms the plane, and maintenance face contact under the buckle state.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007010306 | 2007-01-19 | ||
| JP010306/2007 | 2007-01-19 | ||
| PCT/JP2007/058330 WO2008087746A1 (en) | 2007-01-19 | 2007-04-17 | Switchgear |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101536279A true CN101536279A (en) | 2009-09-16 |
| CN101536279B CN101536279B (en) | 2012-06-20 |
Family
ID=39635755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007800423733A Expired - Fee Related CN101536279B (en) | 2007-01-19 | 2007-04-17 | Switchgear |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP4698741B2 (en) |
| KR (1) | KR101064772B1 (en) |
| CN (1) | CN101536279B (en) |
| MY (1) | MY151848A (en) |
| WO (1) | WO2008087746A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103280727A (en) * | 2013-06-14 | 2013-09-04 | 苏州达宏电子科技有限公司 | Electric chassis vehicle |
| CN106067404A (en) * | 2015-04-20 | 2016-11-02 | Ls产电株式会社 | Vacuum circuit breaker |
| CN110492373A (en) * | 2019-09-27 | 2019-11-22 | 广东北江开关厂有限公司 | It is a kind of with it is electronic and manual operation divide-shut brake drawer |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101834412B (en) * | 2010-06-01 | 2011-04-20 | 武汉长兴电器发展有限公司 | Switch cabinet mechanical interlocking matched set |
| KR101633567B1 (en) | 2011-12-08 | 2016-06-24 | 미쓰비시덴키 가부시키가이샤 | Switchgear |
| KR101648319B1 (en) * | 2012-07-13 | 2016-08-12 | 미쓰비시덴키 가부시키가이샤 | Switch gear |
| KR101570101B1 (en) | 2014-01-28 | 2015-11-19 | 엘에스산전 주식회사 | Interlock Device of Withdrawer of Vacuum Circuit Breaker |
| KR101658541B1 (en) * | 2014-11-28 | 2016-09-22 | 엘에스산전 주식회사 | Withdrawable interlock device of vacuum circuit breaker |
| CN105244793B (en) * | 2015-11-14 | 2017-09-19 | 金炉电气有限公司 | Water charging drainage means (MG100) of flush toilet |
| KR200497614Y1 (en) * | 2018-01-29 | 2024-01-05 | 엘에스일렉트릭(주) | Locking device for Switch gear |
| KR102507648B1 (en) * | 2020-11-19 | 2023-03-08 | 엘에스일렉트릭(주) | Circuit breaker and circuit breaker assembly include the same |
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|---|---|---|---|---|
| JPS55141209U (en) * | 1979-03-28 | 1980-10-08 | ||
| JPS58128518U (en) * | 1982-02-25 | 1983-08-31 | 株式会社明電舎 | Load switch locking device |
| JPS5913003U (en) * | 1982-07-12 | 1984-01-26 | 富士電機株式会社 | Earthing switchgear of switchboard |
| JPS59129325U (en) * | 1983-02-17 | 1984-08-30 | 富士電機株式会社 | Switchboard earthing switch operating device |
| JPH0231843Y2 (en) * | 1984-10-16 | 1990-08-29 | ||
| JPH1146410A (en) * | 1997-07-28 | 1999-02-16 | Mitsubishi Electric Corp | Interlock device for electrical facility |
| JP4074038B2 (en) * | 1999-11-10 | 2008-04-09 | 三菱電機株式会社 | Circuit breaker insertion / extraction device |
| JP4387577B2 (en) * | 2000-10-27 | 2009-12-16 | 泰斗工業株式会社 | Switchgear |
| KR100386630B1 (en) | 2000-11-07 | 2003-06-02 | 엘지산전 주식회사 | the interlock device in earthing switch of vacuum circuit breaker |
| CN2478268Y (en) * | 2000-12-08 | 2002-02-20 | 上海宝菱电气控制设备有限公司 | Safety locking device of electrical high voltage switch cubicle |
| KR100394025B1 (en) | 2000-12-18 | 2003-08-06 | 엘지산전 주식회사 | interlock device of earth switch for vacuum circuit breaker |
-
2007
- 2007-04-17 CN CN2007800423733A patent/CN101536279B/en not_active Expired - Fee Related
- 2007-04-17 MY MYPI20092018 patent/MY151848A/en unknown
- 2007-04-17 WO PCT/JP2007/058330 patent/WO2008087746A1/en active Application Filing
- 2007-04-17 KR KR1020097004532A patent/KR101064772B1/en active IP Right Grant
- 2007-04-17 JP JP2008553945A patent/JP4698741B2/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103280727A (en) * | 2013-06-14 | 2013-09-04 | 苏州达宏电子科技有限公司 | Electric chassis vehicle |
| CN103280727B (en) * | 2013-06-14 | 2015-11-18 | 苏州达宏电子科技有限公司 | A kind of electric chassis truck |
| CN106067404A (en) * | 2015-04-20 | 2016-11-02 | Ls产电株式会社 | Vacuum circuit breaker |
| CN106067404B (en) * | 2015-04-20 | 2018-12-21 | Ls 产电株式会社 | Vacuum circuit breaker |
| CN110492373A (en) * | 2019-09-27 | 2019-11-22 | 广东北江开关厂有限公司 | It is a kind of with it is electronic and manual operation divide-shut brake drawer |
| CN110492373B (en) * | 2019-09-27 | 2024-01-26 | 清远市新能电力工程有限公司 | Opening and closing drawer with electric and manual operation |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2008087746A1 (en) | 2008-07-24 |
| JPWO2008087746A1 (en) | 2010-05-06 |
| KR101064772B1 (en) | 2011-09-14 |
| JP4698741B2 (en) | 2011-06-08 |
| KR20090057975A (en) | 2009-06-08 |
| CN101536279B (en) | 2012-06-20 |
| MY151848A (en) | 2014-07-14 |
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