CN101558537B - Enclosed switchboard for power - Google Patents
Enclosed switchboard for power Download PDFInfo
- Publication number
- CN101558537B CN101558537B CN2007800464610A CN200780046461A CN101558537B CN 101558537 B CN101558537 B CN 101558537B CN 2007800464610 A CN2007800464610 A CN 2007800464610A CN 200780046461 A CN200780046461 A CN 200780046461A CN 101558537 B CN101558537 B CN 101558537B
- Authority
- CN
- China
- Prior art keywords
- earthed switch
- state
- ground connection
- cable vault
- door
- 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.)
- Expired - Fee Related
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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
- 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
- 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
- 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 up of metallic plate, ground connection that grounding plate or insulating material process 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 breaks off; Take in the control room of keeping watch on the required internal units such as control appliance of control.
In such enclosed switchboard for power, compartment respectively with can covering from the door or the cover plate of external switch, when maintenance test during operator's contact object compartment, just can be contacted after opening their door or cover plate.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 disclose in patent documentation 1 to some extent.
As this interlock, generally use the earthed switch of outfit and the door of cable vault perhaps to constitute the method for interlocking between the cover plate in the cable vault.In addition,,, before opening the door of cable vault, confirm that the state of earthed switch can further guarantee safety to the operator even be equipped with interlock, therefore very important.Therefore; Taked the electric display lamp of the state-detection switch gearing that a kind of " ground connection " that is equipped with through the operating mechanism that uses with the body of earthed switch or earthed switch perhaps " opens circuit ", perhaps " open circuit " method of state of " ground connection " of confirming earthed switch indirectly in the past.
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, not hope it is 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 break off 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 switchably installing; And the rotary machine ground that " ground connection " through cam and the above-mentioned earthed switch of operation reach the operating axis of " opening circuit " links; Has the bar that the rotation along with the operating axis of above-mentioned earthed switch moves up at upper and lower; Open for the state of " ground connection " allows down the door of above-mentioned cable vault at above-mentioned earthed switch, above-mentioned earthed switch under the state of " opening circuit " with the interlocking device that remains closed state of above-mentioned cable vault.
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 break off 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 switchably installing; 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 for the door of above-mentioned cable vault being remained under the state of " opening circuit " interlocking device of 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 representes 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 " through " 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 state of " ground connection " allows down the door of cable vault at earthed switch, earthed switch under the state of " opening circuit " with the interlocking device that remains closed state of cable vault, so 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 representes 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 supply 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 execution mode 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 execution mode 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 processed 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 breaks off.Symbol 11 is control rooms, takes in and keeps watch on the required internal units such as control appliance 12 of control.
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 rotates with " ground connection " of earthed switch 8 with reaching the interlock of " opening circuit " state.
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 above that.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 the anglec of rotation whole (120 °) helps moving up and down of bar 34.
In view of the above, can convert more moving up and down of bar 34 into 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, on guiding accessory 36, the opening 38 in the face of bar 34 is set.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 moves to the top through cam 31, when becoming the direction operation of " opening circuit " state, bar 34 moves downwards through cam 31.On the door 16 of cable vault 5,, be fixed with maintenance with accessory 46 like 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 maintenance can be carried out the opening operation of the door 16 of cable vault 5 with the releasing that engages of accessory 46.
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 through 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 moves to the top at earthed switch, and display panel 48 also moves to the top 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,,, door 16 on the position relative besel 51 is set when being closed with the opening 38 of guiding accessory 36 like 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; Through the demonstration of this display panel 48, the operator can confirm indirectly that earthed switch 8 is " ground connection " or " opening circuit " states.Sealing through with the door 16 of display panel 48 and cable vault 5 keeps the bar 34 of usefulness integrated, can cut down the densification of the number of components and the equipment of realization.
Like this, comprise the interlocking device that then can not carry out opening operation, 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 and 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 (4) that is connected with common bus (3);
The load-side conductor (7) that is connected with the power transmission cable that leads to load (6);
Be communicated with or break off the switching device (10) of the extraction of said bus bar side fork conductor (4) and said load-side conductor (7);
At said switching device (10) earthed switch (8) with said load-side conductor (7) ground connection when opening;
Take in the outer container (1) of said bus bar side fork conductor (4), said load-side conductor (7), said switching device (10) and said earthed switch (8);
The cable vault (5) that forms and take in said load-side conductor (7) in the inside of said outer container (1);
But be installed into the door (16) of the said cable vault (5) of switch; And
" ground connection " through cam (31) and the said earthed switch of operation (8) reaches the interlocking device that the rotation of the operating axis (13) of " opening circuit " mechanically links,
Said interlocking device has the bar (34) that the rotation along with the operating axis of said earthed switch (8) (13) moves up at upper and lower,
Said bar (34) is opened for the state of " ground connection " allows down the door (16) of said cable vault (5) at said earthed switch (8), at said earthed switch (8) under the state of " opening circuit " (16) of said cable vault (5) being remained closed state.
2. enclosed switchboard for power as claimed in claim 1 is characterized in that,
The door (16) of said cable vault (5) is provided with the maintenance of the door (16) that engages with the bar (34) of said interlocking device with accessory (46),
The bar (34) of the said interlocking device that links with the rotation of the operating axis (13) of said earthed switch (8) at said earthed switch (8) under the state of " ground connection "; Remove said maintenance engaging with accessory (46) with (16) of said cable vault (5); Make and to open the door (16) of said cable vault (5); At said earthed switch (8) is under the state of " opening circuit "; Engage with accessory (46) with the maintenance of the door (16) of said cable vault (5), (16) of said cable vault (5) are remained closed state.
3. an enclosed switchboard for power is characterized in that, comprising:
The bus bar side fork conductor (4) that is connected with common bus (3);
The load-side conductor (7) that is connected with the power transmission cable that leads to load (6);
Be communicated with or break off the switching device (10) of the extraction of said bus bar side fork conductor (4) and said load-side conductor (7);
At said switching device (10) earthed switch (8) with said load-side conductor (7) ground connection when opening;
Take in the outer container (1) of said bus bar side fork conductor (4), said load-side conductor (7), said switching device (10) and said earthed switch (8);
The cable vault (5) that forms and take in said load-side conductor (7) in the inside of said outer container (1);
But be installed into the door (16) of the said cable vault (5) of switch; And
The rotation that reaches the operating axis (13) of " opening circuit " with " ground connection " of operating said earthed switch (8) mechanically links mobile; Open for the door (16) that allows said cable vault (5) under the state of " ground connection " at said earthed switch (8); At said earthed switch (8) for the door (16) of said cable vault (5) being remained under the state of " opening circuit " interlocking device of closed state
And, comprise along with moving of said interlocking device and represent that " ground connection " of said earthed switch (8) reaches the display panel (48) of " opening circuit " state with the rotation of the operating axis (13) of said earthed switch (8) the mobile said interlocking device that mechanically links,
Said display panel (48) cooperates " ground connection " of earthed switch (8) 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,
Said interlocking device has rotation that " ground connection " with the said earthed switch of operation (8) reach the operating axis (13) of " opening circuit " the mobile bar (34) that mechanically links; Said bar (34) comprises along with moving of the said bar (34) of said interlocking device representes that " ground connection " of said earthed switch reaches the display panel of " opening circuit " state (48)
Said display panel (48) cooperates " ground connection " of earthed switch (8) 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 (16) of said cable vault (5) is provided with the besel (51) of said display panel (48); Under door (16) closing state, pass through to confirm said display panel (48), can confirm that " ground connection " of said earthed switch (8) reaches the state of " opening circuit " said cable vault (5).
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 CN101558537A (en) | 2009-10-14 |
| CN101558537B true 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) |
Families Citing this family (12)
| 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 |
| 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 |
| 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 |
| KR101522265B1 (en) * | 2013-10-16 | 2015-05-21 | 엘에스산전 주식회사 | Voltage transformer room door interlock device of panel for vacuum circuit breaker |
| 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 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1206944A (en) * | 1997-07-24 | 1999-02-03 | 三菱电机株式会社 | Interlocking device for closed electric distribution panel |
| CN1213205A (en) * | 1997-09-29 | 1999-04-07 | 三菱电机株式会社 | Enclosed switch board and its drawable switch and interlocking device thereof |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| JPH1169517A (en) * | 1997-08-07 | 1999-03-09 | Fuji Electric Co Ltd | Enclosed power switchboard |
| 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 WO PCT/JP2007/050654 patent/WO2008087723A1/en active Application Filing
- 2007-01-18 KR KR1020097006324A patent/KR101052671B1/en active IP Right Grant
- 2007-01-18 CN CN2007800464610A patent/CN101558537B/en not_active Expired - Fee Related
- 2007-01-18 JP JP2008553924A patent/JP4848018B2/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1206944A (en) * | 1997-07-24 | 1999-02-03 | 三菱电机株式会社 | Interlocking device for closed electric distribution panel |
| CN1213205A (en) * | 1997-09-29 | 1999-04-07 | 三菱电机株式会社 | Enclosed switch board and its drawable switch and interlocking device thereof |
Non-Patent Citations (2)
| Title |
|---|
| JP特开2006-81267A 2006.03.23 |
| JP特开平11-69517A 1999.03.09 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4848018B2 (en) | 2011-12-28 |
| WO2008087723A1 (en) | 2008-07-24 |
| JPWO2008087723A1 (en) | 2010-05-06 |
| KR20090076900A (en) | 2009-07-13 |
| CN101558537A (en) | 2009-10-14 |
| KR101052671B1 (en) | 2011-07-28 |
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