CN103427358A - High-voltage distribution PT ring main unit - Google Patents
High-voltage distribution PT ring main unit Download PDFInfo
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- CN103427358A CN103427358A CN2013103236539A CN201310323653A CN103427358A CN 103427358 A CN103427358 A CN 103427358A CN 2013103236539 A CN2013103236539 A CN 2013103236539A CN 201310323653 A CN201310323653 A CN 201310323653A CN 103427358 A CN103427358 A CN 103427358A
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- cabinet
- ring main
- locking
- main unit
- power distribution
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Abstract
The invention discloses a high-voltage distribution PT ring main unit comprising a unit body and a device disposed in the unit body. The device comprises a disconnector. A locking device used for locking the disconnector to prevent switching on when a unit door is opened is disposed inside the unit body. The unit body is composed of unit body boards. Through the locking device, misoperation can be prevented effectively, accidents can be reduced and safety of unit operators can be guaranteed; the unit body is assembled with nuts and screws, so that production labor of the ring main unit is reduced, a frame is good in verticality and parallelism, assembly precision is high, and the cost is low.
Description
Technical field
The present invention relates to the high voltage power distribution technical field, especially relate to a kind of high voltage power distribution PT ring main unit.
Background technology
Along with quality and the requirement of equipment automatization operant level of society rapid development of economy national grid switching devices are more and more higher.
Traditional high voltage power distribution PT ring main unit is to adopt angle steel or sheet material bending to be welded, easily cause cabinet to be out of shape because of welding, be difficult to guarantee perpendicularity and the depth of parallelism of framework, the production cycle that welding needs is long, affect production efficiency, the gas simultaneously discharged when the welding switch cabinet is the contaminated air environment also.
In the distribution field, the Electrical Safety of switchgear is most important, the existing general high voltage power distribution PT ring main unit connection of railway carriage or compartment type ring main unit together is that to adopt the conduction type insulation column to connect its safe insulation Performance Ratio poor, and the cabinet door can arbitrarily be opened, isolator operation when the cabinet door is opened, easily cause security incident, there is no guard system, fail safe is poor.
Summary of the invention
Technical problem to be solved by this invention is to provide the rational high voltage power distribution PT of a kind of topology layout ring main unit, to reach handling safety and purpose easy to maintenance.
In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of high voltage power distribution PT ring main unit, comprise cabinet and be located at the components and parts in cabinet, described components and parts comprise isolating switch, are provided with the locking device that can not carry out closing operation when cabinet body door is opened for pinning isolating switch in described cabinet.
Further, described locking device comprises locking support plate, locking guide plate, pin mounting panel, spring, pin, " U " type pull bar, described locking guide plate is located on the locking support plate, the locking support plate is located on the cabinet dividing plate, " U " type pull bar is through locking guide plate and pin mounting panel, on " U " type pull bar of spring housing in the pin mounting panel, pin is located in the stopper slot of pin mounting panel.
Described cabinet assembles by cabinet-body plate.
Be provided with independently bus-bar room, control room, components and parts chamber in described cabinet.
The main shaft of described isolating switch is provided with axle sleeve, for isolating switch divide, while closing a floodgate with a door locking, on axle sleeve, be provided with the obturator hernia that adaptation " U " type draws club head simultaneously.
Described cabinet-body plate is the aluminizing zine plate.
The present invention compared with prior art, has the following advantages:
1, topology layout compact and reasonable, switchgear is applicable, handling safety and easy to maintenance more economically, meets the requirement of distribution automation;
2, locking device is set, can effectively prevents that misoperation from occurring, the generation of decrease safent accident, assurance cabinet operating personnel's safety;
3, cabinet assembles by nut and screw, reduces the workload that power distribution cabinet is produced, and perpendicularity and the depth of parallelism of framework are better, and assembly precision is high, and cost is low.
The accompanying drawing explanation
Below to each width accompanying drawing of this specification, expressed content and the mark in figure are briefly described:
Fig. 1 is power distribution cabinet compartment distribution schematic diagram of the present invention.
Fig. 2 is that in power distribution cabinet of the present invention, components and parts are arranged schematic diagram.
Fig. 3 is locking device schematic diagram of the present invention.
Fig. 4 is cabinet-body plate structural representation of the present invention.
Fig. 5 is operating axis nested structure schematic diagram before the present invention.
Fig. 6 is Fig. 5 upward view.
Fig. 7 is shrouding latch shaft nested structure schematic diagram after the present invention.
Fig. 8 is Fig. 7 vertical view.
In figure: 1. control room, 2. bus-bar room, 3. door locking support, 4. locking device, 41. locking support plate, 42. locking guide plate I, 43. pin mounting panel, 44. spring, 45. pin, 46. locking guide plate II, " 47. U " type pull bar, 5. hoisting board, 6. isolating switch, 7. operating axis blocking mechanism, 8. fusible core support, 9. voltage transformer, 10. door handle, 11. lightning arrester, 12. dividing plate, 13. observation window, 14. side cabinet, 15. front operation axle sleeve, 16. Qianmen latch plate, 17. obturator hernia, 18., rear shrouding locking axle sleeve, 19. back door latch plate.
Embodiment
Below contrast accompanying drawing, the description by embodiment, be described in further detail the specific embodiment of the present invention.
As shown in Figures 1 to 8, this high voltage power distribution PT ring main unit, comprise cabinet and be located at the components and parts in cabinet, wherein, cabinet assembles by left and right side plate and upper and lower lintel, and side cabinet 14 adopts high strength aluminizing zine plate, adds self-tapping screw by riveting nut and 8.8 grades of screws and assemble after Digit Control Machine Tool processing and bending, both reduced the workload of switch cubicle welding, outward appearance is very attractive in appearance again; Be provided with hoisting board 5 at the cabinet top, be convenient to handling; Components and parts comprise isolating switch 6, fuse, lightning arrester 11, voltage transformer 9, and fuse is arranged in cabinet by fusible core support 8, reach the requirement of distribution automation; Be provided with the locking device 4 that can not carry out closing operation when cabinet body door is opened for pinning isolating switch in cabinet, in the situation that the cabinet door is opened, can not operate isolating switch, thereby guarantee cabinet operating personnel's personal safety.
In cabinet, component placement is very rationally clear, be provided with independently bus-bar room 2, control room, components and parts chamber in cabinet, be provided with dividing plate 12 between bus-bar room and components and parts chamber, also on cabinet, be provided with independently control room 1, while as components and parts, having fault to overhaul, only need part compartment outage maintenance, easy to maintenance.The cabinet body door of cabinet is provided with door handle 10 and observation window 13.
This high voltage power distribution PT ring main unit railway carriage or compartment type ring main unit together can left and right independent assortment, power distribution cabinet between railway carriage or compartment type ring main unit, connect to adopt together copper bar directly to connect its safety and insulation property all can meet the demands, if when defective in quality, replacing is more convenient, reduce user's use cost.
Locking device 4 comprises locking support plate 41, the locking guide plate, pin mounting panel 43, spring 44, pin 45, " U " type pull bar 47, wherein, the locking guide plate comprises locking guide plate I 42 and locking guide plate II 46, locking guide plate I 42 is located on the locking support plate, locking support plate 41 is located on the dividing plate of cabinet, pin mounting panel 43 is located between locking guide plate I 42 and locking guide plate II 46, " U " type pull bar is through locking guide plate and pin mounting panel, spring 44 is enclosed within on " U " type pull bar in the pin mounting panel, pin 45 is located in the stopper slot of pin mounting panel.
The cabinet body door of the front and back of cabinet adopts the inner blocking type design, and gap is little, and the degree of protection in cabinet reaches the object that diameter is greater than 1mm and can't enter in cabinet, and security performance is high.And be provided with a locking support 3 on cabinet body door, be provided with operating axis blocking mechanism 7 on the isolating switch main shaft, the operating axis blocking mechanism comprises axle sleeve and latch plate, for isolating switch divide, while closing a floodgate with a door locking, on axle sleeve, be provided with the obturator hernia that adaptation " U " type draws club head simultaneously.
This electricity cabinet has perfect and advanced " five is anti-" blocking function, and its concrete performance is as follows:
Close a floodgate: operate axle sleeve 15 before under the drive of operating grip and rear shrouding locking axle sleeve 18 is rotated counterclockwise simultaneously when isolating switch closes a floodgate, after the anglec of rotation of isolator operation axle is spent dead point, isolating switch carries out rapid closing under the pulling force of self axle spring.And be arranged on Qianmen latch plate 16 on main shaft and back door latch plate 19 all in state vertically downward, now the Qianmen latch plate on main shaft and back door latch plate just in time are stuck in the draw-in groove the inside of Qianmen locking support and back door locking support (rear shrouding) upper edge, and now first the correcting of the length of the bar head of " U " type pull bar is against on Qianmen locking support, brachycephaly one end of the bar head of " U " type pull bar apart from main shaft before latch plate the distance of 10mm is approximately arranged.At this moment the forward and backward Men Jun of switch cubicle does not open, thereby guarantees switch cubicle operating personnel's the person and device security.
Separating brake: before under the drive at operating grip when the isolating switch separating brake, operation axle sleeve and rear shrouding locking axle sleeve are turned clockwise simultaneously, after the anglec of rotation of isolator operation axle is spent dead point, isolating switch isolating switch under the pulling force of self axle spring carries out quick acting switching-off.And now be arranged on isolating switch Qianmen latch plate 16 and back door latch plate 19 state in 58 ° and 32 ° respectively, now the forward and backward door of switch cubicle all can be opened.The brachycephaly of isolating switch bar head of " U " type pull bar of locking device after separating brake just in time inserts the distance of the obturator hernia 17 Rio 20mm of front operation axle sleeve, simultaneously between the dividing plate of locking device and bus-bar room, safe and reliable being connected arranged, in the situation that forward and backward is opened and can not operate isolating switch.Could disconnecting switch operation while only having current, back door to close simultaneously, thus cabinet operating personnel's personal safety guaranteed.
The above is exemplarily described the present invention by reference to the accompanying drawings; obviously specific implementation of the present invention is not subject to the restrictions described above; as long as adopted the improvement of the various unsubstantialities that design of the present invention and technical scheme carry out; or without improving, design of the present invention and technical scheme are directly applied to other occasion, all within protection scope of the present invention.
Claims (6)
1. a high voltage power distribution PT ring main unit, comprise cabinet and be located at the components and parts in cabinet, it is characterized in that: described components and parts comprise isolating switch (6), are provided with the locking device (4) that can not carry out closing operation when cabinet body door is opened for pinning isolating switch in described cabinet.
2. high voltage power distribution PT ring main unit as claimed in claim 1, it is characterized in that: described locking device (4) comprises locking support plate (41), the locking guide plate, pin mounting panel (43), spring (44), pin (45), " U " type pull bar (47), described locking guide plate is located on locking support plate (41), the locking support plate is located on the cabinet dividing plate, " U " type pull bar (47) is through locking guide plate and pin mounting panel (43), spring (44) is enclosed within on " U " type pull bar (47) in pin mounting panel (43), pin (45) is located in the stopper slot of pin mounting panel (43).
3. high voltage power distribution PT ring main unit as claimed in claim 1, it is characterized in that: described cabinet assembles by cabinet-body plate.
4. high voltage power distribution PT ring main unit as claimed in claim 1, is characterized in that: be provided with independently bus-bar room, control room, components and parts chamber in described cabinet.
5. high voltage power distribution PT ring main unit as claimed in claim 2, it is characterized in that: the main shaft of described isolating switch (6) is provided with axle sleeve, for isolating switch divide, while closing a floodgate with a door locking, be provided with the obturator hernia that adaptation " U " type draws club head simultaneously on axle sleeve.
6. high voltage power distribution PT ring main unit as claimed in claim 3, it is characterized in that: described cabinet-body plate is the aluminizing zine plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310323653.9A CN103427358B (en) | 2013-07-30 | 2013-07-30 | A kind of high voltage power distribution PT ring main unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310323653.9A CN103427358B (en) | 2013-07-30 | 2013-07-30 | A kind of high voltage power distribution PT ring main unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103427358A true CN103427358A (en) | 2013-12-04 |
| CN103427358B CN103427358B (en) | 2015-08-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310323653.9A Active CN103427358B (en) | 2013-07-30 | 2013-07-30 | A kind of high voltage power distribution PT ring main unit |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5424500A (en) * | 1994-04-08 | 1995-06-13 | Electro-Mechanical Corporation | Door-mounted operating mechanism for electrical switchgear |
| CN201298492Y (en) * | 2008-11-20 | 2009-08-26 | 江山市森源电器有限公司 | Mechanical interlock of high voltage electric appliance switch cabinet |
| CN202997410U (en) * | 2012-11-23 | 2013-06-12 | 希格玛电气(珠海)有限公司 | Air insulation voltage transformer cabinet |
| CN203481693U (en) * | 2013-07-30 | 2014-03-12 | 安徽明远电力设备制造有限公司 | High-voltage distribution PT ring main unit |
-
2013
- 2013-07-30 CN CN201310323653.9A patent/CN103427358B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5424500A (en) * | 1994-04-08 | 1995-06-13 | Electro-Mechanical Corporation | Door-mounted operating mechanism for electrical switchgear |
| CN201298492Y (en) * | 2008-11-20 | 2009-08-26 | 江山市森源电器有限公司 | Mechanical interlock of high voltage electric appliance switch cabinet |
| CN202997410U (en) * | 2012-11-23 | 2013-06-12 | 希格玛电气(珠海)有限公司 | Air insulation voltage transformer cabinet |
| CN203481693U (en) * | 2013-07-30 | 2014-03-12 | 安徽明远电力设备制造有限公司 | High-voltage distribution PT ring main unit |
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| Publication number | Publication date |
|---|---|
| CN103427358B (en) | 2015-08-19 |
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Address after: 241000 Anhui province Wuhu Auto City of Yijiang high tech Industrial Development Zone, Road No. 18 Patentee after: Anhui Mingyuan Power Equipment Manufacture Ltd. Address before: 241000 Anhui province Wuhu Auto City of Yijiang high tech Industrial Development Zone, Road No. 18 Patentee before: Wuhu Mingyuan Electrical Equipment Manufacture Co., Ltd. |