CN202564831U - All-insulation inflatable removed-type circuit breaker cabinet - Google Patents
All-insulation inflatable removed-type circuit breaker cabinet Download PDFInfo
- Publication number
- CN202564831U CN202564831U CN2012202192746U CN201220219274U CN202564831U CN 202564831 U CN202564831 U CN 202564831U CN 2012202192746 U CN2012202192746 U CN 2012202192746U CN 201220219274 U CN201220219274 U CN 201220219274U CN 202564831 U CN202564831 U CN 202564831U
- Authority
- CN
- China
- Prior art keywords
- cabinet
- cable
- cable vault
- earthed switch
- breaker
- 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
Links
Landscapes
- Gas-Insulated Switchgears (AREA)
Abstract
The utility model discloses an all-insulation inflatable removed-type circuit breaker cabinet which comprises an inflatable cabinet body and a pressure releasing channel. The inflatable cabinet body comprises a meter cabinet, an air box and a cable chamber, wherein the cable chamber is provided with a grounding switch, a transmission shaft of the grounding switch, three lower outgoing line connecting sleeves, three outgoing line cables and a grounding switch interlocking device. A lateral plate of the cable chamber is arranged on one side of the cable chamber, a cable chamber door is arranged outside the lateral plate of the cable chamber, the transmission shaft of the grounding switch is arranged on the lateral plate of the cable chamber, one side of the grounding switch interlocking device is fixed on the cable chamber door, and meanwhile the grounding switch interlocking device is sleeved on the transmission shaft of the grounding switch, and the grounding switch is arranged on the side of the cable chamber which is opposite to the cable chamber door. Three knife dynamic contactors arranged on the grounding switch are rotated downward or upward by 90 degrees by rotating the transmission shaft of the grounding switch clockwise or anticlockwise, the connecting sleeves of the lower outgoing line is provided with a L-shaped grounding knife static contactor, and the knife dynamic contactor is contacted or separated with the knife static contactor after being rotated 90 by degrees.
Description
Technical field
The utility model has related to a kind of intelligent all insulation gas-filled type and has removed the type breaker cabinet, has particularly related to very little can precisely the locating of a kind of operating physical force, and all insulation gas-filled type that has bright visible fracture is simultaneously removed type intelligent breaker cabinet.
Background technology
At present, the mounting means that is contained in gas-filled type switch cubicle inner breaker all is fixed installation, uses jointly for the power demands that satisfies obvious cut-off point is equipped with isolating switch.Not only each other the operating physical force of interlock complicacy but also isolating switch is very big, and especially the heavy current disconnecting switches operating physical force is huge.Therefore utility model very little can precisely the locating of the operating physical force all insulation gas-filled type that has obviously visible fracture simultaneously remove type intelligent breaker cabinet.
Summary of the invention
It all is that fixed installation is equipped with isolating switch and uses jointly that the utility model purpose is to solve existing all insulation gas-filled type circuit breaker; And there be not very little can precisely the locating of operating physical force; Have the present situation of the handcart type breaker cabinet of obviously visible fracture simultaneously, and provide a kind of novel gas-filled type all insulation gas-filled type to remove type intelligent breaker cabinet.
In order to accomplish this utility model purpose, the utility model adopts following technical scheme:
A kind of all insulation gas-filled type of the utility model is removed the type breaker cabinet; It comprises: inflation cabinet cabinet and pressure release passage, and pressure release passage is in a side of inflation cabinet cabinet, and the inflation cabinet cabinet that all insulation gas-filled type is removed the type breaker cabinet comprises: control room, gas tank and cable vault; The control room is above gas tank and cable vault; Gas tank is equipped with permanent magnet mechanism circuit-breaker, three sides are advanced joint sleeve and three following outlet joint sleeves in gas tank above the cable vault, three sides advance joint sleeve respectively three through copper bar and permanent magnet mechanism circuit-breaker go up ground connection cutter fixed contact boxes and link to each other; Three sides are advanced joint sleeve and are extended outward to outside the gas tank; Three following outlet joint sleeves link to each other with three leading-out terminals of permanent magnet mechanism circuit-breaker through copper bar respectively, and three following outlet joint sleeves reach downwards in the cable vault, and earthed switch, earthed switch transmission axle, three following outlet joint sleeves, three outlet cables and earthed switch interlock are housed in the cable vault; One side of cable vault is equipped with cable vault's side plate; Cable vault's door is equipped with in the outside of cable vault's side plate, and the earthed switch transmission axle is contained on cable vault's side plate, and a side of earthed switch interlock is fixed on cable vault's door; The earthed switch interlock is sleeved on the earthed switch transmission axle simultaneously; Earthed switch is contained in a side of the cable vault relative with cable vault's door, and the earthed switch transmission axle makes three the ground connection cutter moving contacts half-twist up or down on the earthed switch, and three following outlet joint sleeves stretch out downwards with an end of three cable ends from gas tank respectively and link to each other; The other end of three cable ends links to each other with three outlet cables respectively; Three outlet cables extend out to downwards outside the cable vault, and following outlet joint sleeve is equipped with the ground connection cutter fixed contact of earthed switch, and ground connection cutter fixed contact links to each other with the outlet cable; It is characterized in that: ground connection cutter moving contact is the L type, behind its half-twist be contained in down the outlet joint sleeve in ground connection cutter fixed contact contact or separate;
A kind of all insulation gas-filled type of the utility model is removed the type breaker cabinet, and wherein: said side is advanced on the side plate that joint sleeve is welded on gas tank;
A kind of all insulation gas-filled type of the utility model is removed the type breaker cabinet, and wherein: turn-screw is equipped with in the bottom of said permanent magnet mechanism circuit-breaker;
A kind of all insulation gas-filled type of the utility model is removed the type breaker cabinet, and wherein: be set with cable clip on the said outlet cable, cable clip is fixed on the cable vault through cable bearer;
A kind of all insulation gas-filled type of the utility model is removed the type breaker cabinet, and wherein: relief valve and observation window are equipped with in the upper end of said gas tank, and camera is equipped with in the observation window upper end;
A kind of all insulation gas-filled type of the utility model is removed the type breaker cabinet, and wherein: a side of said control room has the instrument door;
A kind of all insulation gas-filled type of the utility model is removed the type breaker cabinet, and wherein: a side of said inflation cabinet cabinet has door in the inflation cabinet.
The all insulation gas-filled type of the utility model is removed type intelligent breaker cabinet and is compared with existing gas tank cabinet; Because ground connection cutter moving contact has location hole; Ground connection cutter fixed contact has positioning boss that sound is lifted one's head the time precisely to locate in contact; Guarantee the contact reliability of ground connection cutter moving contact and ground connection cutter fixed contact, can not produce the phenomenon that makes the sound loose contact because of dislocation.
Description of drawings
Fig. 1 removes the side view of type intelligent breaker cabinet for all insulation gas-filled type of the utility model, remove the inner body of type intelligent breaker cabinet in order to see all insulation gas-filled type clearly, has removed the sidewall that all insulation gas-filled type is removed type intelligent breaker cabinet;
Fig. 2 is the back to view of gas tank.
In Fig. 1 and Fig. 2, label 1 is the control room; Label 2 is the instrument door; Label 3 is door in the inflation cabinet; Label 4 is a turn-screw; Label 5 is the propulsion plant magnetic fluid; Label is 6 cable vault's side plates; Label is 7 cable vault's doors; Label 8 is the earthed switch transmission axle, and label 9 is the earthed switch interlock; Label 10 divides the device turn-screw for hand; Label 11 is an earthed switch; Label 12 is following outlet sleeve pipe; Label inflation cabinet cabinet 13; Label 14 is a pressure release passage; Label 15 pressure relief devices; Label 16 is an observation window; Label 17 is the outlet cable, and label 18 is a cable clip; Label 19 is a cable bearer; Label 20 is a cable end; Label 21 is a ground connection cutter ground connection cutter moving contact; Label 22 is a ground connection cutter ground connection cutter fixed contact; Label 23 is the side entrance bushing; Label 24 is last ground connection cutter fixed contact box; Label 25 is following ground connection cutter fixed contact box; Label 26 is a permanent magnet mechanism circuit-breaker; Label 27 is the cable vault; Label 28 is a gas tank; Label 29 is the gas density transducer; Label 30 is a camera; Label 31 is a display screen, and label 32 is a circuit interrupter grounding cutter moving contact; Label 33 is following bus-bar; Label 34 is an emergency unlocking device; Label 35 is the circuit breaker position clamping block; Label 36 is the permanent magnet mechanism circuit-breaker intelligent measuring and control device; Label 37 is a permanent-magnet operating mechanism; Label 38 is the permanent magnet mechanism output shaft; Label 39 chain output toggle arms; Label 40 is a transmission crank arm; Label 41 is an insulated tension pole; Label 42 is an arc control device ground connection cutter moving contact; Label 43 is an arc control device ground connection cutter fixed contact; Label 44 is a pole; Label 45 is last bus-bar 45.
Embodiment
As depicted in figs. 1 and 2; A kind of all insulation gas-filled type of the utility model is removed type intelligent breaker cabinet, and it comprises: gas tank body 13 and pressure release passage 14, and pressure release passage 14 is in a side of inflation cabinet cabinet 13; Inflation cabinet cabinet 13 also comprises: control room 1, gas tank 28 and cable vault 27; Control room 1 is above gas tank 28 and cable vault 27, and gas tank 28 is equipped with permanent magnet mechanism circuit-breaker 26, turn-screw 4 and propulsion plant magnetic fluid 5 in gas tank 28 above cable vault 27.Driving turn-screws 4 rotations through rotary propelling device magnetic fluid 5 moves forward and backward permanent magnet mechanism circuit-breaker 26 and ground connection cutter moving contact 21 to contact with three following contact boxs 25 interior ground connection cutter fixed contacts 22 with three upper static contact boxes 24 respectively or breaks off.Three sides are housed in the gas tank 28 advance joint sleeve 23 and three following outlet joint sleeves 12; Three sides are advanced joint sleeve 23 and are linked to each other with three upper static contact boxes 24 of permanent magnet mechanism circuit-breaker 26 through last bus-bar 45 respectively; Three sides are advanced joint sleeve 23 and are extended outward to outside the gas tank 28, and side is advanced on the side plate that joint sleeve 23 is welded on gas tank 28.Three following outlet joint sleeves 12 in the gas tank 28 pass through down respectively, and bus-bar 33 links to each other with three following fixed contact boxes 25 of permanent magnet mechanism circuit-breaker 26; Three following outlet joint sleeves 12 reach downwards in the cable vault 27; Earthed switch 11, earthed switch transmission axle 8, three following outlet joint sleeves 12, three outlet cables 17 and earthed switch interlocks 9 are housed in the cable vault 27; One side of cable vault 27 is equipped with cable vault's side plate 6; Cable vault's door 7 is equipped with in the front side of cable vault's side plate 6; Earthed switch transmission axle 8 is contained on cable vault's side plate 6, and a side of earthed switch interlock 9 is fixed on cable vault's door 7, and earthed switch interlock 9 is sleeved on the earthed switch transmission axle 8 simultaneously; Earthed switch 11 is contained on the side of the cable vault 27 relative with cable vault's door 7, and rotation earthed switch transmission axle 8 makes three ground connection cutter moving contacts 21 half-twist up or down on the earthed switch 11.Three following outlet joint sleeves 12 stretch out downwards with an end of three cable ends 20 from gas tank 28 respectively and link to each other; The other end of three cable ends 20 links to each other with three outlet cables 17 respectively; Three outlet cables 17 extend out to downwards outside the cable vault 27; Following outlet joint sleeve 12 is equipped with the ground connection cutter fixed contact 22 of earthed switch, and ground connection cutter fixed contact 22 links to each other with outlet cable 17.Ground connection cutter moving contact 22 is the L type, be installed in earthed switch 11 on half-twist ground connection cutter moving contact 21 contact or separate.
One side of control room 1 is equipped with instrument door 2, and the bottom of permanent magnet mechanism circuit-breaker 26 is equipped with turn-screw 4 and with a side of inflation cabinet cabinet 28 propulsion plant magnetic fluid 5 lines is housed and is connected.Pressure relief device 15 and observation window 16 and camera 30 are equipped with in the upper end of gas tank 28.
The concrete structure of permanent magnet mechanism circuit-breaker 26 is called in the utility model name of application on July 13rd, 2011 with reference to the applicant: the inflation cabinet is used handcart type breaker, and application number is: 201110194224.7.
Operating process
During the cabinet maintenance: working condition and the position of at first checking the permanent magnet mechanism circuit-breaker 26 in the switch cubicle through indicating device on the installation instrument door 2 and display screen 31.As the circuit breaker 26 of permanent magnet mechanism in the service position "on" position; Press opening button; Make the permanent magnet mechanism circuit-breaker intelligent measuring and control device 36 that is installed in the control room 1 accept the separating brake actuating signal; Through the supply voltage of 36 pairs of permanent magnet mechanism circuit-breakers 26 of permanent magnet mechanism circuit-breaker intelligent measuring and control device, after position shape body and wire loop detect normally, the switching winding of conducting permanent-magnet operating mechanism 37; This moment permanent magnet mechanism output shaft 38 to the right motion drive interlocking output toggle arm 39 and move upward with transmission crank arm 40, make interlocking output toggle arm 39 and 35 releases of circuit breaker position clamping block.Transmission crank arm 40 other ends drive insulated tension pole 41 moves downward with arc control device moving contact 42 arc control device fixed contact 43 is separated with arc control device moving contact 42.Make permanent magnet mechanism circuit-breaker 26 separating brakes.Behind the chain output toggle arm 39 and 35 releases of circuit breaker position clamping block of circuit breaker; Operating personnel can rotate counterclockwise propulsion plant magnetic fluid 5 with operating grip and drive turn-screws 4 and makes permanent magnet mechanism circuit-breaker 26 slide into the experiment position from the service position, and the moving contact of breaker 32 of permanent magnet mechanism separates from upper static contact box 24 and following fixed contact box 25.(display 31 of control room's panel that operating personnel can connect through camera 30 is seen the isolation fracture that the moving contact of breaker on the permanent magnet mechanism circuit-breakers 26 32 and upper static contact box 24 and following fixed contact box 25 draw back in the gas tank 28 clearly).At this moment; Press the emergency unlocking device 34 release earthed switch handle holes of earthed switch operating axis; Operating personnel can clockwise rotate earthed switch transmission axle 8 makes earthed switch 11 close a floodgate; Ground connection cutter moving contact 21 rotates up 90 ° and contacts with ground connection cutter fixed contact 22, and earthed switch interlock 9 release cable vault doors 7 make the maintainer can open cable vault's door 7 entering cable vaults equipment is overhauled.Simultaneously, earthed switch 11 locking circuit breakers make the maintainer not close a floodgate by faulty operation permanent magnet mechanism circuit-breaker 26.
When cabinet put into operation: operating personnel withdrawed from the cable vault; Shutting cable vault's door 7. rotates counterclockwise earthed switch transmission axle 8 then and makes earthed switch 11 separating brakes; Ground connection cutter moving contact 21 is rotated down 90 ° to be separated with ground connection cutter fixed contact 22; Simultaneously; Earthed switch 11 release permanent magnet mechanism circuit-breakers 26 operation lockings. operating personnel can clockwise rotate propulsion plant magnetic fluid 5 with operating grip and drive turn-screws 4 and makes permanent magnet mechanism circuit-breaker 26 slide into the service position from the experiment position, and moving contact of breaker 32 inserts upper static contact box 24 and following contact box 25 respectively and makes major loop be in heat to be equipped with state (display 31 of control room's panel that operating personnel can be connected through camera 30 sees that clearly the moving contact of breaker 32 on the gas tank 28 interior permanent magnet mechanism circuit-breakers 26 inserts respectively in upper static contact box 24 and the following contact box 25).Earthed switch operation emergency unlocking device 34 locking earthed switch handle holes, operating personnel can not 11 actions of operational grounding switch.Press the switch knob on the instrument door 2 this moment; Make the permanent magnet mechanism circuit-breaker intelligent measuring and control device 36 that is installed in the control room 1 accept the feed motion signal; Supply voltage through 36 pairs of permanent magnet mechanism circuit-breakers 26 of permanent magnet mechanism circuit-breaker intelligent measuring and control device; After position shape body and wire loop detect normally; The closing coil of conducting permanent-magnet operating mechanism 37, this moment permanent magnet mechanism output shaft 38 to the left motion drive interlocking output toggle arm 39 and move downward with transmission crank arm 40, make interlocking output toggle arm 39 be locked in the service position with circuit breaker position clamping block 35.The exhausted pull bar 41 of transmission crank arm 40 other ends drive moves upward with arc control device moving contact 42 and makes arc control device cutter fixed contact 43 and arc control device moving contact 42 closures.The disconnected road device of permanent magnet mechanism 26 is closed a floodgate.Circuit breaker interlocking output toggle arm 39 is locked in the service position with circuit breaker position clamping block 35, and permanent magnet mechanism circuit-breaker 26 can not be slided front and back. and simultaneously, earthed switch interlock 9 locking cable vault doors 7 make operating personnel can not normally open the cable vault.
More than describing is the explanation to the utility model, is not the qualification to utility model, and the utility model institute restricted portion is referring to claim, and under the situation of the spirit of the utility model, the utility model can be done any type of modification.
Claims (7)
1. an all insulation gas-filled type is removed the type breaker cabinet; It comprises: inflation cabinet cabinet (13) and pressure release passage (14); Pressure release passage (14) is in a side of inflation cabinet cabinet (13); The inflation cabinet cabinet (13) that all insulation gas-filled type is removed the type breaker cabinet comprising: control room (1), gas tank (28) and cable vault (27); Control room (1) is in the top of gas tank (28) and cable vault (27); Gas tank (28) is the top of (27) in the cable vault; Permanent magnet mechanism circuit-breaker (26) is housed in gas tank (28), three sides are advanced joint sleeve (23) and three following outlet joint sleeves (12); Three sides are advanced joint sleeve (23) and are linked to each other with three last ground connection cutter fixed contact boxes (24) of permanent magnet mechanism circuit-breaker (26) through copper bar respectively, and three sides are advanced joint sleeve (23) and extended outward to outside the gas tank (28), and three following outlet joint sleeves (12) link to each other with three leading-out terminals (25) of permanent magnet mechanism circuit-breaker (26) through copper bar respectively; Three following outlet joint sleeves (12) reach downwards in the cable vault (27); Earthed switch (11), earthed switch transmission axle (8), three following outlet joint sleeves (12), three outlet cables (17) and earthed switch interlock (9) are housed in the cable vault (27), and a side of cable vault (27) is equipped with cable vault's side plate (6), and cable vault's door (7) is equipped with in the outside of cable vault's side plate (6); Earthed switch transmission axle (8) is contained on cable vault's side plate (6); One side of earthed switch interlock (9) is fixed on cable vault's door (7), and earthed switch interlock (9) is sleeved on the earthed switch transmission axle (8) simultaneously, and earthed switch (11) is contained in a side of the cable vault (27) relative with cable vault's door (7); Earthed switch transmission axle (8) makes three ground connection cutter moving contacts (21) half-twist up or down on the earthed switch (11); Three following outlet joint sleeves (12) stretch out downwards with an end of three cable ends (20) from gas tank (28) respectively and link to each other, and the other end of three cable ends (20) links to each other with three outlet cables (17) respectively, and three outlet cables (17) extend out to downwards outside the cable vault (27); Following outlet joint sleeve (12) is equipped with the ground connection cutter fixed contact (22) of earthed switch; Ground connection cutter fixed contact (22) links to each other with outlet cable (17), it is characterized in that: ground connection cutter moving contact (21) is the L type, behind its half-twist be contained in down ground connection cutter fixed contact (22) contact in the outlet joint sleeve (12) or separate.
2. all insulation gas-filled type as claimed in claim 1 is removed the type breaker cabinet, it is characterized in that: said side is advanced joint sleeve (23) and is welded on the side plate of gas tank (28).
3. all insulation gas-filled type of stating like claim 2 is removed the type breaker cabinet, it is characterized in that: turn-screw (4) is equipped with in the bottom of said permanent magnet mechanism circuit-breaker (26).
4. all insulation gas-filled type of stating like claim 3 is removed the type breaker cabinet, it is characterized in that: be set with cable clip (18) on the said outlet cable (17), cable clip (18) is fixed in the cable vault (27) through cable bearer (19).
5. all insulation gas-filled type of stating like claim 4 is removed the type breaker cabinet, it is characterized in that: relief valve (15) and observation window (16) are equipped with in the upper end of said gas tank (28), and camera (30) is equipped with in observation window (16) upper end.
6. all insulation gas-filled type as claimed in claim 5 is removed the type breaker cabinet, it is characterized in that: a side of said control room (1) has instrument door (2).
7. all insulation gas-filled type as claimed in claim 6 is removed the type breaker cabinet, it is characterized in that: a side of said inflation cabinet cabinet (13) has door (3) in the inflation cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202192746U CN202564831U (en) | 2012-05-15 | 2012-05-15 | All-insulation inflatable removed-type circuit breaker cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202192746U CN202564831U (en) | 2012-05-15 | 2012-05-15 | All-insulation inflatable removed-type circuit breaker cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202564831U true CN202564831U (en) | 2012-11-28 |
Family
ID=47214446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202192746U Expired - Fee Related CN202564831U (en) | 2012-05-15 | 2012-05-15 | All-insulation inflatable removed-type circuit breaker cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202564831U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107181194A (en) * | 2017-06-22 | 2017-09-19 | 广东紫光电气有限公司 | A kind of double isolation armouring mobile vacuum high-tension switch gears of straight cutting |
| CN110429870A (en) * | 2019-09-09 | 2019-11-08 | 苏州艾克威尔科技有限公司 | A kind of high pressure soft starting device |
| CN114362027A (en) * | 2021-12-16 | 2022-04-15 | 平高集团有限公司 | Aerify cabinet and gas tank thereof |
-
2012
- 2012-05-15 CN CN2012202192746U patent/CN202564831U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107181194A (en) * | 2017-06-22 | 2017-09-19 | 广东紫光电气有限公司 | A kind of double isolation armouring mobile vacuum high-tension switch gears of straight cutting |
| CN110429870A (en) * | 2019-09-09 | 2019-11-08 | 苏州艾克威尔科技有限公司 | A kind of high pressure soft starting device |
| CN114362027A (en) * | 2021-12-16 | 2022-04-15 | 平高集团有限公司 | Aerify cabinet and gas tank thereof |
| CN114362027B (en) * | 2021-12-16 | 2024-04-09 | 平高集团有限公司 | Inflatable cabinet and air box thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4268991B2 (en) | Vacuum insulated switchgear | |
| JP2010119243A (en) | Vacuum switchgear | |
| WO2015043460A1 (en) | High-speed grounding switch and grounding switch assembly unit composed thereof | |
| CN101588026A (en) | A kind of 24kV intermediate switchgear cabinet | |
| CN102290731B (en) | Three-phase common-proper compact type solid insulation high voltage alternating current vacuum switching cabinet | |
| CN202564831U (en) | All-insulation inflatable removed-type circuit breaker cabinet | |
| CN103166143B (en) | A kind of solid insulation ring main unit | |
| CN111555133A (en) | Guarantee type cubical switchboard of quick action | |
| CN104051180A (en) | 10kV pole-mounted vacuum load switch | |
| CN201655658U (en) | Vacuum load switch | |
| CN203180419U (en) | Double-chamber environment-friendly gas-insulated metal-enclosed switchgear | |
| CN203103205U (en) | 1500V direct current isolating switch | |
| CN205810681U (en) | A kind of solid insulation high-pressure vacuum breaker disconnecting switch | |
| CN205335738U (en) | Totally enclosed miniaturized cubical switchboard of gaseous all insulation of environmental protection | |
| CN203135294U (en) | Solid insulation ring main unit | |
| CN109659844B (en) | Constant-pressure airtight permanent magnet breaker cabinet | |
| CN201780898U (en) | Five-prevention interlock operating device for circuit breaker cabinet | |
| KR20120067836A (en) | A gas insulated switchgear | |
| CN201478729U (en) | Indoor box-type metal enclosed ring main unit | |
| CN201336525Y (en) | Inflated ring network switch equipment in one tank type | |
| CN203193175U (en) | Lightning-protection double-case environmentally friendly gas-insulated metal-enclosed switchgear | |
| CN106921122A (en) | The environmentally friendly full-insulated full-sealed miniaturization switch cubicle of gas | |
| CN208781770U (en) | A kind of operating mechanism device of solid-state insulated switchgear | |
| CN202633146U (en) | Fixed high-voltage switch cabinet interlocking mechanism | |
| CN201393001Y (en) | Handcart-type medium-pressure switch device for power distribution |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121128 Termination date: 20180515 |