CN101558537A - Enclosed switchboard for power - Google Patents
Enclosed switchboard for power Download PDFInfo
- Publication number
- CN101558537A CN101558537A CNA2007800464610A CN200780046461A CN101558537A CN 101558537 A CN101558537 A CN 101558537A CN A2007800464610 A CNA2007800464610 A CN A2007800464610A CN 200780046461 A CN200780046461 A CN 200780046461A CN 101558537 A CN101558537 A CN 101558537A
- Authority
- CN
- China
- Prior art keywords
- earthed switch
- state
- ground connection
- door
- cable vault
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B7/00—Enclosed substations, e.g. compact substations
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/20—Bus-bar or other wiring layouts, e.g. in cubicles, in switchyards
-
- 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
- H02B11/02—Details
- H02B11/10—Indicating electrical condition of gear; Arrangement of test sockets
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Patch Boards (AREA)
- Trip Switchboards (AREA)
Abstract
An enclosed switchboard for power comprising an interlock mechanism which moves through mechanical interlock with rotary movement of an operating shaft (13) for operating 'earth' and 'disconnection' of an earthing switch (8), and permits opening of the door (16) of a cable chamber (5) in an 'earthed' state of the earthing switch (8) but holds the door (16) of a cable chamber (5) in a closed state in a 'disconnected' state of the earthing switch (8). The interlock mechanism moving through mechanical interlock with rotary movement of the operating shaft (13) of the earthing switch (8) is providedwith an indicator (48) indicating the 'earthed' state and the 'disconnected' state of the earthing switch (8) as the interlock mechanism moves. The indicator (48) indicates 'earth' and 'disconnection' in addition to the 'earthed' state and the 'disconnected' state of the earthing switch (8).
Description
Technical field
The present invention relates to enclosed switchboard for power, relate to the interlocking device that between " ground connection ", " opening circuit " state of " opening ", " pass " and the earthed switch of the door of the cable vault of taking in the load-side conductor, forms.
Background technology
Enclosed switchboard for power utilizes the inside of the next door outer container that will be made of metallic plate, ground connection that grounding plate or insulating material make to be spaced from each other, and forms a plurality of compartments.These compartments are configured to respectively: the bus-bar room of taking in the bus bar side fork conductor that is connected with common bus; Take in the cable vault of the load-side conductor that is connected with the power transmission cable that leads to other electric panel rooms or load equipment even load; Take in that two conductors with bus-bar room and cable vault are communicated with or the breaker chamber of the switching device that disconnects; Take in the control room of the internal units such as control appliance that monitor that control is required.
In such enclosed switchboard for power, with compartment respectively with can covering from the door or the cover plate of external switch, when maintenance test during operator's contact object compartment, open they door or cover plate after just can contact.When the contact object compartment, get an electric shock in order to prevent to touch charging part or because the accident that the residual voltage of internal unit causes the operator to get an electric shock, in the compartment of taking in the load-side conductor (cable vault), need a kind of interlock that before the load-side conductor is grounded, can not carry out " opening " operation to the door of cable vault.Otherwise, can to the door of cable vault carry out " opening " operation state, be that the operator can contact under the state of cable vault, need a kind of interlock that makes main circuit can't be converted to charged state from ground state.These for example have disclosed in patent documentation 1.
As this interlock, generally use between the door of the earthed switch that is equipped with in the cable vault and cable vault or the cover plate to constitute the method for interlocking.In addition, even be equipped with interlock, for the operator, the state of affirmation earthed switch can further be guaranteed safety before opening the door of cable vault, and is therefore very important.Therefore, take a kind of electric display lamp of state-detection switch gearing of " ground connection " or " opening circuit " that is equipped with by the operating mechanism that uses with the body of earthed switch or earthed switch in the past, confirmed the method for " ground connection " or " opening circuit " state of earthed switch indirectly.
But, have a power failure to wait can't be to the emergency of display lamp power supply the time, when operation, can't confirm the state of the earthed switch that above-mentioned display lamp is represented.
Patent documentation 1: Japanese patent laid-open 11-69517 communique
Summary of the invention
Under these circumstances, in order to confirm the state of earthed switch, wish it is not that electricity shows, but machinery shows the state of earthed switch.
The present invention does for solving aforesaid problem, its purpose is to obtain a kind of enclosed switchboard for power that comprises earthed switch, between the door of cable vault and earthed switch, realize interlocking, the operator can not got an electric shock when opening the door of cable vault the operator with simple mechanism.Its purpose is to obtain a kind ofly to comprise that also " ground connection " of mechanically representing earthed switch reaches the enclosed switchboard for power of display panel of the state of " opening circuit ".
Enclosed switchboard for power of the present invention comprises: the bus bar side fork conductor that is connected with common bus; The load-side conductor that is connected with the power transmission cable that leads to load; Be communicated with or disconnect the switching device of the extraction of two conductors; When above-mentioned switching device is opened with the earthed switch of above-mentioned load-side conductor ground connection; Take in the outer container of these parts; Inside at above-mentioned outer container forms the cable vault of taking in above-mentioned load-side conductor; The door of the above-mentioned cable vault of An Zhuaning switchably; And the rotary machine ground interlock that reaches the operating axis of " opening circuit " by the cam and " ground connection " of the above-mentioned earthed switch of operation, has the bar that the rotation along with the operating axis of above-mentioned earthed switch moves up at upper and lower, opening for the door that allows above-mentioned cable vault under the state of " ground connection " at above-mentioned earthed switch, is the interlocking device that under the state of " opening circuit " door of above-mentioned cable vault is remained closed state at above-mentioned earthed switch.
In addition, enclosed switchboard for power of the present invention comprises: the bus bar side fork conductor that is connected with common bus; The load-side conductor that is connected with the power transmission cable that leads to load; Be communicated with or disconnect the switching device of the extraction of two conductors; When above-mentioned switching device is opened with the earthed switch of above-mentioned load-side conductor ground connection; Take in the outer container of these parts; Inside at above-mentioned outer container forms the cable vault of taking in above-mentioned load-side conductor; The door of the above-mentioned cable vault of An Zhuaning switchably; And link mobile with rotary machine ground that " ground connection " of the above-mentioned earthed switch of operation reach the operating axis of " opening circuit ", open for the door that allows above-mentioned cable vault under the state of " ground connection " at above-mentioned earthed switch, at above-mentioned earthed switch is the interlocking device that under the state of " opening circuit " door of above-mentioned cable vault is remained closed state, and, the above-mentioned interlocking device that moves with the rotary machine ground interlock of the operating axis of above-mentioned earthed switch comprises along with moving of above-mentioned interlocking device and represents that " ground connection " of above-mentioned earthed switch reaches the display panel of " opening circuit " state, above-mentioned display panel cooperates " ground connection " of earthed switch to reach " opening circuit " state, carries out the demonstration that " ground connection " reaches " opening circuit ".
According to enclosed switchboard for power involved in the present invention, owing to comprise the rotary machine ground interlock that reaches the operating axis of " opening circuit " by " ground connection " of cam and operational grounding switch, has the bar that the rotation along with the operating axis of earthed switch moves up at upper and lower, open for the door that allows the cable vault under the state of " ground connection " at earthed switch, at earthed switch is the interlocking device that under the state of " opening circuit " door of cable vault is remained closed state, so it is simple in structure, before the load-side conductor is grounded, can reliably seal the door that keeps the cable vault.
In addition, according to enclosed switchboard for power involved in the present invention, because comprising along with the mobile of interlocking device, the interlocking device that moves with the rotary machine ground interlock of the operating axis of earthed switch represents that mechanically " ground connection " of earthed switch reaches the display panel of " opening circuit " state, so the operator can confirm earthed switch " ground connection " state, under " ground connection " state of earthed switch, can open the door of cable vault, can improve the fail safe of operation, even for example when the operation in emergency circumstances that can't power, also can confirm " ground connection " state of earthed switch.
Description of drawings
Fig. 1 is the front view of the related enclosed switchboard for power of expression embodiments of the present invention 1.
Fig. 2 is the cutaway view of the related enclosed switchboard for power of expression execution mode 1.
Fig. 3 is the amplification stereogram of the Z part of the related earthed switch Fig. 2 under " opening circuit " state of execution mode 1.
Fig. 4 is the amplification stereogram of the Z part of the related earthed switch Fig. 2 under " ground connection " state of execution mode 1.
Fig. 5 is the front view of Fig. 4.
Fig. 6 is the amplification stereogram of the related guiding accessory of execution mode 1.
Fig. 7 is the enlarged front view of the Y part of the related earthed switch Fig. 1 under " opening circuit " state of execution mode 1.
Fig. 8 is the enlarged front view of the Y portion of the related earthed switch Fig. 1 under " ground connection " state of execution mode 1.
Embodiment
Fig. 1 and Fig. 2 are the front view and the cutaway views of the related enclosed switchboard for power of expression embodiments of the present invention 1.Symbol 1 is to constitute the also outer container of ground connection by metallic plate, and its inner next door of being made by grounding plate or insulating material is spaced from each other, and forms a plurality of compartments, constitutes the receiving room of conductor or equipment.Symbol 2 is bus-bar rooms, takes in the bus bar side fork conductor 4 that is connected with common bus 3.Symbol 5 is cable vaults, takes in the load-side conductor 7 that is connected with the power transmission cable 6 that leads to other electric panel rooms or load equipment even load.In cable vault 5, also take in earthed switch 8.Symbol 9 is breaker chambers, takes in two conductors connections of bus-bar room 2 and cable vault 5 or the switching device 10 that disconnects.Symbol 11 is control rooms, takes in the internal units such as control appliance 12 that monitor that control is required.
Fig. 3 is the amplification stereogram of the Z part of the related earthed switch Fig. 2 under " opening circuit " state of execution mode 1.Fig. 4 is the amplification stereogram of the Z part of the related earthed switch Fig. 2 under " opening circuit " state of execution mode 1.Fig. 5 is the front view of Fig. 4.The end of the operating axis 13 of earthed switch 8 is inserted the hole 32 of cam 31 and fix, cam 31 directly is connected with operating axis 13.Therefore, along with the rotation of operating axis 13, cam 31 is that rotate at the center with operating axis 13 also, and cam 31 also reaches " opening circuit " state with " ground connection " of earthed switch 8 and rotates in linkage.
On cam 31, as shown in Figure 5, be provided with the circular hole 33 that forms along the concentric circles of operating axis 13.Symbol 34 is bars of door 16 the interlocking usefulness of cable vault 5, and the end is provided with also and is keeping selling 35 thereon.These pin 35 sliding inlay cards are combined in the circular hole 33 of cam 31.If cam 31 rotates along with the rotation of operating axis 13, then absorb the part of the rotational angle of operating axis 13 with this circular hole 33, the part (60 °) of anglec of rotation integral body (120 °) helps moving up and down of bar 34.
In view of the above, moving up and down of bar 34 can be converted to more motion near straight line.Symbol 36 is the guiding accessories that are fixed on the outer container 1.Fig. 6 is the amplification stereogram of the related guiding accessory 36 of execution mode 1.Be provided for the hole 37 of the track that moves up and down of adjusting lever 34 on the accessory 36 in guiding, its role is to make bar 34 move closer to rectilinear motion up and down when the concentric circles of operating axis 13 rotates.And, the opening 38 in the face of bar 34 is set on guiding accessory 36.The pin 39 that is kept by bar 34 is set on bar 34, and embeds sept 40, when earthed switch 8 was in the state of Fig. 3 for " opening circuit " state lower beam 34, the position of limit rod 34 can not moved bar 34 from position shown in Figure 3 downwards.
With operating axis 13 to making earthed switch 8 become direction when operation of " ground connection " state, bar 34 is moved upward by cam 31, when becoming the direction operation of " opening circuit " state, bar 34 moves downwards by cam 31.On the door 16 of cable vault 5,, be fixed with maintenance accessory 46 as Fig. 7, shown in Figure 8.For under the state of " opening circuit ", bar 34 engages with the hole on the accessory 46 47 with the maintenance that is arranged on door 16 at earthed switch 8,16 of cable vault 5 is remained closed state lock.On the other hand, be under the state of " ground connection " at earthed switch 8, bar 34 and keep the releasing that engages with accessory 46 can carry out an opening operation of 16 of cable vault 5.
Fig. 7 is the enlarged front view of the Y part of the related earthed switch Fig. 1 under " opening circuit " state of execution mode 1.Fig. 8 is the enlarged front view of the Y part of the related earthed switch Fig. 1 under " ground connection " state of execution mode 1.The pars intermedia of bar 34, in the face of the position of the opening 38 of guiding accessory 36 on the fixing display panel 48 of one.Display panel 48 comprises that expression earthed switch 8 is for " opening circuit " display part 49 of " opening circuit " state and represent that earthed switch 8 is " ground connection " display part 50 of " ground connection " state.
With the rotation interlock of the operating axis 13 of earthed switch 8, when bar 34 moved up and down by cam 31, the display panel 48 that is fixed on the bar 34 also moved up and down.As shown in Figure 3, when earthed switch " was opened circuit ", bar 34 moved downwards, and display panel 48 also moves downwards with it, can be from the top view of the opening 38 of guiding accessory 36 to " opening circuit " display part 49.On the other hand, as shown in Figure 4, when " ground connection ", bar 34 is moved upward at earthed switch, and display panel 48 also is moved upward with it, can be from the top view of the opening 38 of guiding accessory 36 to " ground connection " display part 50.
On the door 16 of cable vault 5,, when being closed, door 16 on the position relative besel 51 is set with the opening 38 that guides accessory 36 as Fig. 7, shown in Figure 8.Under door 16 closing state, what can confirm that display panels 48 show via this besel 51 is " opening circuit " display part 49 or " ground connection " display part 50, by the demonstration of this display panel 48, the operator can confirm indirectly that earthed switch 8 is " ground connection " or " opening circuit " states.Keep the bar 34 of usefulness integrated by door 16 sealing, can cut down the densification of the number of components and the equipment of realization display panel 48 and cable vault 5.
Like this, comprise the interlocking device that can not carry out opening operation then, the display panel 48 of the state of representing earthed switch 8 of in this interlocking device, packing into to the door 16 of cable vault 5 if earthed switch 8 is not " ground connection " state.When the operator contacts the cable vault 5 of enclosed switch board, if do not close earthed switch 8, make it be in " ground connection " state, then can not open the door 16 of cable vault 5, and, before opening the door 16 of cable vault 5, can utilize display panel 48 to confirm that earthed switch 8 is in " ground connection " state or is in " opening circuit " state.
Claims (5)
1. an enclosed switchboard for power is characterized in that, comprising:
The bus bar side fork conductor that is connected with common bus;
The load-side conductor that is connected with the power transmission cable that leads to load;
Be communicated with or disconnect the switching device of the extraction of two conductors;
When described switching device is opened with the earthed switch of described load-side conductor ground connection;
Take in the outer container of these parts;
The cable vault that forms and take in described load-side conductor in the inside of described outer container;
But be installed into the door of the described cable vault of switch; And
Mechanically link by cam and the rotation that " ground connection " of operating described earthed switch reaches the operating axis of " opening circuit ", has the bar that the rotation along with the operating axis of described earthed switch moves up at upper and lower, opening for the door that allows described cable vault under the state of " ground connection " at described earthed switch, is the interlocking device that under the state of " opening circuit " door of described cable vault is remained closed state at described earthed switch.
2. enclosed switchboard for power as claimed in claim 1 is characterized in that,
The door of described cable vault is provided with the maintenance accessory of the door that engages with the bar of described interlocking device,
The bar of the described interlocking device that links with the rotation of the operating axis of described earthed switch at described earthed switch under the state of " ground connection ", remove with described cable vault described maintenance engaging with accessory, make and to open the door of described cable vault, at described earthed switch is under the state of " opening circuit ", engage with accessory with the maintenance of the door of described cable vault, the door of described cable vault is remained closed state.
3. an enclosed switchboard for power is characterized in that, comprising:
The bus bar side fork conductor that is connected with common bus;
The load-side conductor that is connected with the power transmission cable that leads to load;
Be communicated with or disconnect the switching device of the extraction of two conductors;
When described switching device is opened with the earthed switch of described load-side conductor ground connection;
Take in the outer container of these parts;
The cable vault that forms and take in described load-side conductor in the inside of described outer container;
But be installed into the door of the described cable vault of switch; And
The rotation that reaches the operating axis of " opening circuit " with " ground connection " of operating described earthed switch mechanically links mobile, open for the door that allows described cable vault under the state of " ground connection " at described earthed switch, at described earthed switch is the interlocking device that under the state of " opening circuit " door of described cable vault is remained closed state
And, comprise along with moving of described interlocking device and represent that " ground connection " of described earthed switch reaches the display panel of " opening circuit " state with the rotation of the operating axis of the described earthed switch mobile described interlocking device that mechanically links,
Described display panel cooperates " ground connection " of earthed switch to reach " opening circuit " state, carries out the demonstration that " ground connection " reaches " opening circuit ".
4. enclosed switchboard for power as claimed in claim 3 is characterized in that,
Described interlocking device has rotation that " ground connection " with the described earthed switch of operation reach the operating axis of " opening circuit " the mobile bar that mechanically links, described bar comprises along with moving of the described bar of described interlocking device represents that " ground connection " of described earthed switch reaches the display panel of " opening circuit " state
Described display panel cooperates " ground connection " of earthed switch to reach " opening circuit " state, carries out the demonstration that " ground connection " reaches " opening circuit ".
5. enclosed switchboard for power as claimed in claim 4 is characterized in that,
The door of described cable vault is provided with the besel of described display panel, passes through to confirm described display panel under with the door closing state of described cable vault, can confirm that " ground connection " of described earthed switch reaches the state of " opening circuit ".
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2007/050654 WO2008087723A1 (en) | 2007-01-18 | 2007-01-18 | Enclosed switchboard for power |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101558537A true CN101558537A (en) | 2009-10-14 |
| CN101558537B CN101558537B (en) | 2012-06-06 |
Family
ID=39635732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007800464610A Expired - Fee Related CN101558537B (en) | 2007-01-18 | 2007-01-18 | Enclosed switchboard for power |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP4848018B2 (en) |
| KR (1) | KR101052671B1 (en) |
| CN (1) | CN101558537B (en) |
| WO (1) | WO2008087723A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102768911A (en) * | 2012-07-23 | 2012-11-07 | 江苏大全长江电器股份有限公司 | Switch cabinet grounding switch and lower door interlocking mechanism |
| WO2013097175A1 (en) * | 2011-12-30 | 2013-07-04 | Abb Technology Ltd. | Mechanical interlock device among cable door, rear door and earthing switch |
| US20150102608A1 (en) * | 2013-10-16 | 2015-04-16 | Lsis Co., Ltd. | Door interlock device for transformer room of vacuum circuit breaker |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102903562B (en) * | 2012-10-12 | 2014-09-03 | 川开电气股份有限公司 | Lower door interlocking mechanism for central-positioned type switch equipment |
| KR101513204B1 (en) * | 2013-05-13 | 2015-04-17 | 엘에스산전 주식회사 | Switchgear having door interlock device |
| KR102337773B1 (en) * | 2015-06-08 | 2021-12-10 | 한국전력공사 | Clamp for safety |
| KR101663587B1 (en) * | 2016-04-04 | 2016-10-07 | (주)케이제이엔지니어링 | Power distribution box for underground distribution line of apartment |
| KR200486810Y1 (en) * | 2016-11-22 | 2018-07-31 | 엘에스산전 주식회사 | Fuse circuit interlock guide and ring main unit having the same |
| JP7253989B2 (en) * | 2019-07-08 | 2023-04-07 | 三菱電機株式会社 | switchgear |
| DE102020202595A1 (en) * | 2020-02-28 | 2021-09-02 | Siemens Aktiengesellschaft | Control unit for an earthing switch drive in an air-insulated switchgear |
| EP3975355A1 (en) * | 2020-09-29 | 2022-03-30 | Siemens Aktiengesellschaft | Earthing switch interlock arrangement |
| CN116825558B (en) * | 2023-08-30 | 2023-12-01 | 福建德普乐能源科技有限公司 | Interlocking device for high-voltage switch equipment mechanism |
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| JPS6122106U (en) * | 1984-07-12 | 1986-02-08 | 富士電機株式会社 | Closed switchboard interlock device |
| JPS6264105A (en) * | 1985-09-13 | 1987-03-23 | Alps Electric Co Ltd | Frequency modulator |
| JPS6264105U (en) * | 1985-10-08 | 1987-04-21 | ||
| US4656713A (en) * | 1985-10-24 | 1987-04-14 | Ap Industries, Inc. | Method for forming an air gap pipe |
| JPS62101319U (en) * | 1985-12-13 | 1987-06-27 | ||
| JPS6482606A (en) * | 1987-09-25 | 1989-03-28 | Matsushita Electric Works Ltd | Electromagnet device |
| JPH069529Y2 (en) * | 1987-11-19 | 1994-03-09 | 株式会社明電舎 | Drawer breaker interlock device |
| JPH1146411A (en) * | 1997-07-24 | 1999-02-16 | Mitsubishi Electric Corp | Interlock device for metal enclosed switchboard |
| JPH1169517A (en) * | 1997-08-07 | 1999-03-09 | Fuji Electric Co Ltd | Enclosed power switchboard |
| JP3792019B2 (en) * | 1997-09-29 | 2006-06-28 | 三菱電機株式会社 | Drawer type opening / closing device and its locking device |
| KR20000019909A (en) * | 1998-09-16 | 2000-04-15 | 이종수 | Ground switch interlocking apparatus of vacuum interrupter for distributing board |
| KR200261861Y1 (en) * | 2001-11-07 | 2002-01-24 | 케이피앤비테크놀러지(주) | Pad mounted sub station package |
| KR100617363B1 (en) * | 2005-07-27 | 2006-11-23 | (주)서전기전 | Very large-scale integrated metal clad |
-
2007
- 2007-01-18 CN CN2007800464610A patent/CN101558537B/en not_active Expired - Fee Related
- 2007-01-18 KR KR1020097006324A patent/KR101052671B1/en active IP Right Grant
- 2007-01-18 JP JP2008553924A patent/JP4848018B2/en active Active
- 2007-01-18 WO PCT/JP2007/050654 patent/WO2008087723A1/en active Application Filing
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013097175A1 (en) * | 2011-12-30 | 2013-07-04 | Abb Technology Ltd. | Mechanical interlock device among cable door, rear door and earthing switch |
| CN104025230A (en) * | 2011-12-30 | 2014-09-03 | Abb技术有限公司 | Mechanical Interlock Device Among Cable Door, Rear Door And Earthing Switch |
| CN104025230B (en) * | 2011-12-30 | 2017-02-15 | Abb技术有限公司 | Mechanical Interlock Device Among Cable Door, Rear Door And Earthing Switch |
| CN102768911A (en) * | 2012-07-23 | 2012-11-07 | 江苏大全长江电器股份有限公司 | Switch cabinet grounding switch and lower door interlocking mechanism |
| US20150102608A1 (en) * | 2013-10-16 | 2015-04-16 | Lsis Co., Ltd. | Door interlock device for transformer room of vacuum circuit breaker |
| CN104576166A (en) * | 2013-10-16 | 2015-04-29 | Ls产电株式会社 | Door interlock device for transformer room of vacuum circuit breaker |
| US9732543B2 (en) | 2013-10-16 | 2017-08-15 | Lsis Co., Ltd. | Door interlock device for transformer room of vacuum circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| KR101052671B1 (en) | 2011-07-28 |
| JP4848018B2 (en) | 2011-12-28 |
| JPWO2008087723A1 (en) | 2010-05-06 |
| CN101558537B (en) | 2012-06-06 |
| WO2008087723A1 (en) | 2008-07-24 |
| KR20090076900A (en) | 2009-07-13 |
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