CN203367843U - Five-prevention interlocking fixed type measuring cabinet with isolation - Google Patents
Five-prevention interlocking fixed type measuring cabinet with isolation Download PDFInfo
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- CN203367843U CN203367843U CN 201320467972 CN201320467972U CN203367843U CN 203367843 U CN203367843 U CN 203367843U CN 201320467972 CN201320467972 CN 201320467972 CN 201320467972 U CN201320467972 U CN 201320467972U CN 203367843 U CN203367843 U CN 203367843U
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- xiamen
- isolating switch
- voltage transformer
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Abstract
The utility model belongs to the technical field of power transmission and distribution, and discloses a five-prevention interlocking fixed type measuring cabinet with isolation. The measuring cabinet comprises a metal cabinet body, and a bus, a current transformer, a voltage transformer, a gauge table, and a disconnecting switch are arranged inside the cabinet body. A rear panel of the cabinet body is provided with a rear upper door and a rear lower door, a front panel of the cabinet body is provided with a front upper door, a front middle door and a front lower door, an operation board of the disconnecting switch and the front lower door are interlocked through a program lock, and the front middle door and the front lower door are interlocked through an interlocking baffle plate. In the five-prevention interlocking fixed type measuring cabinet with isolation, the disconnecting switch is a core element for realizing safe maintenance without cutting off power supply, all the doors and the disconnecting switch are interlocked in a mutually interlocking manner, the doors can be opened only under the circumstance that the disconnecting switch is switched off, and thus safety is well ensured, and reliability is high.
Description
Technical field
The utility model belongs to the power transmission and distribution technical field, relates to the switch cubicle technology for distribution system, relates to specifically a kind of electric power meter of using as measuring electric degree and electric energy management.
Background technology
In distribution system, metering cabinet generally can be divided into two kinds of fixed metering cabinet and withdraw-type metering cabinets.
Wherein, fixed metering cabinet refers to that in cabinet, all electric equipments and device are immovable after installing.The withdraw-type metering cabinet refers in cabinet that partly or entirely electric equipment and device are contained on dolly, can leave cabinet with dolly.
The Mobile metering cabinet overhauls or in case of necessity, measuring trolley can be pulled out, easy to operate.But there is the unfavorable factor that the many dangerous spots of the many faying surfaces of interface are many.
The formula that relatively moves metering cabinet, fixed metering cabinet needs to have a power failure and processes when maintenance or replacing high-tension fuse, comparatively trouble.But, because of plurality of advantages such as it are simple in structure, reliability is high, cost is low, still be widely used.
Common fixed metering is comprised of electric component in cabinet and cabinet, generally is separated into several chambers in cabinet, is respectively used to arrange gauge table, bus, high-tension fuse and voltage transformer (PT) etc., to prevent electric component, disturbs each other.In cabinet, electric component mainly comprises bus, current transformer, voltage transformer, gauge table, wherein the once end of current transformer and voltage transformer is connected with main bus bar, secondary terminals is connected with gauge table, at main bus bar and voltage transformer, once between end, is connected with high-tension fuse.
For the maintenance and other operation that facilitate metering cabinet, the cabinet front and back panel all is designed to door, before generally comprising, visit and front Xiamen, after visit and rear Xiamen, according to the electrical safety requirement, need certain interlock connection between each, to guarantee operating sequence, guarantee handling safety.The interlocking of existing metering cabinet only limits to procedure lock, and without other interlock mechanism, reliability is not high, and structural design also has unreasonable part.
Summary of the invention
The purpose of this utility model is to propose for the existing the problems referred to above of existing switch metering cabinet the switch metering cabinet that a kind of Interlock Reliability is higher.
For achieving the above object, the technical solution used in the present invention is: the band of a kind of five anti-interlockings is isolated fixed metering cabinet, comprise metal cabinet, be furnished with bus, current transformer, voltage transformer, gauge table in described cabinet, the once end of described current transformer and voltage transformer is connected with bus, secondary terminals is connected with gauge table, once between end, be connected with high-tension fuse at bus and voltage transformer, it is characterized in that the isolating switch of also contacting between described bus and high-tension fuse.The cabinet rear board be provided with corresponding inlet wire junction block after visit, the rear Xiamen of corresponding current instrument transformer and outlet junction block, the cabinet front panel be provided with corresponding gauge table before visit, the Qian Zhongmen of corresponding isolating switch, and the front Xiamen of corresponding high-tension fuse and voltage transformer, interlock by procedure lock between the operation board of described isolating switch and front Xiamen, interlock by the interlocking baffle plate between front middle Men Yuqian Xiamen.
In the utility model, isolating switch is to realize not cutting off the power supply the core parts of safety inspection, is only guaranteeing that isolating switch disconnects, and cup is just determined safety.So, by the operation board of isolating switch and front lower gate interlock, before turn-offing isolating switch, forbid that front Xiamen opens.Before only having isolating switch to divide to fall assurance, compartment, without electricity, is opened front Xiamen 205 procedure locks with 205 procedure lock keys on operation board, just can open front Xiamen; , between front Xiamen and front middle door, by interlock plate, interlock, before open front Xiamen, forbid opening Qian Zhongmen simultaneously.Only after opening, front Xiamen just can open Qian Zhongmen.Thus, corresponding inner Qian Zhongmen and front Xiamen with strong power part, all to turn off isolating switch for opening important document, guarantee that these two while opening, and cup safety is without electric.
Further, interlocking by electromagnetic lock in rear Xiamen, (where is electromagnetic lock power supply termination?), where does the contact side (refer to?) when electricity is arranged, electromagnetic lock plays a role, rear Xiamen can't be opened by door; During without electricity, electromagnetic lock lost efficacy, and just can open rear Xiamen;
Simultaneously, after visit and rear Xiamen between by interlocking plate washer interlocking, before open rear Xiamen, after forbidding opening, visit.
Of the present utility model five anti-crosslinking lock schemes combine the modes such as mechanical interlocking, Mechanically programm's lock, electrical interlock, make this scheme safe and reliable, simple to operate, easy to use.
As a kind of improvement, the utility model has also designed a kind of Novel interlocked baffle arrangement, and the baffle plate of interlocking has the bending of four 90 degree on Width.This kind of structure can also increase the intensity of cabinet door so that cabinet is more attractive in appearance, and effect is superior.
The invention also discloses placement scheme in a kind of cabinet, described cabinet inside is divided into cup and ，Liang chamber, rear chamber is separated by dividing plate, and gauge table, isolating switch, high-tension fuse and voltage transformer are located at cup.Bus and current transformer are located at rear chamber.
This improved advantage is, the forceful electric power circuit between the chamber, front and back is separated by isolating switch, and after disconnecting isolating switch, cup is without forceful electric power, but safety inspection.Rear chamber element because of the dividing plate between the chamber, front and back on cup without impact, during maintenance, rear chamber is without outage.Safe enough is reliable.
More specifically, the cup front upper place arranges control room, for arranging gauge table, with the cup other parts, by metal partion (metp), separated, described isolating switch is arranged in the cup middle part, and voltage transformer is arranged in the cup bottom, and high-tension fuse is arranged between isolating switch and voltage transformer.
This set fully takes into account using and operating of metering cabinet, and the height design of metering cabinet is usually suitable with general adult's height, and gauge table is positioned at the cup top, and the personnel that are convenient to operation watch gage surface while naturally standing.Isolating switch design is at middle part, and corresponding general adult's waist and belly just is people while naturally standing, and arm is by naturally drooping the height that under state, the toggle hand lifts slightly, the handled easily personnel disconnecting switch operation of naturally standing.The tripping fuse is arranged in middle and lower part, and operating personnel only need micro-crouching can overhaul replacing, especially convenient.
Further, the main bus bar chamber is separately established in top, rear chamber, and secondary bus-bar room is established in below, and major and minor bus-bar room and rear chamber other parts are separated by metal partion (metp).Between main bus bar chamber and secondary bus-bar room, be cable vault, current transformer is arranged at middle part, rear chamber rear side, with current transformer without the cable of annexation from front side, middle part, chamber pass through.The utility model takes full advantage of structural design, by isolation between each element or mutually away from, to guarantee, under the prerequisite that structure is the compactest, easy to operate, interelement influencing each other to be reduced to minimum.
The accompanying drawing explanation
The Facad structure schematic diagram that Fig. 1 is a kind of embodiment of the disclosed metering cabinet of the utility model.
Fig. 2 is that shown in Fig. 1, the internal structure schematic diagram is looked on a metering cabinet left side.
Fig. 3 is metering cabinet circuit theory diagrams shown in Fig. 1 (isolating switch off-states).
Fig. 4 is metering cabinet circuit theory diagrams shown in Fig. 1 (isolating switch closure states).
Fig. 5 is that the face of metering cabinet back shown in Fig. 1 is analysed structural representation.
Fig. 6 is the interlock schematic diagram between Fig. 5 institute metering cabinet panel upper-lower door.
Embodiment
Below in conjunction with accompanying drawing, with a kind of specific embodiments, this practicality is described further.
With reference to Fig. 1,2, metering cabinet shown in this figure is applicable in 6 ~ 24kV electric pressure distribution system, on the fixed switch metering cabinet basis in KYN series or XGN series through improving.
This metering cabinet comprises cabinet 10, cabinet inside is separated into cup and rear chamber two parts by a vertical metal partion (metp), control room 13 is established in the cup front upper place, by metal partion (metp) and 12 isolation of cup other parts, control room 13 interior assembling gauge table (not shown), the corresponding cabinet front panel of meter face gauge table window.Isolating switch 16 is arranged at the cup middle part, and high-tension fuse 17 is established in middle and lower part, and voltage transformer 18 is established in bottom.
Main bus bar chamber 11 is established on top, rear chamber, includes the inlet wire junction block, and the in-built outlet junction block of secondary bus-bar room 19 is established in bottom.The major-minor bus-bar room is separated by metal partion (metp) and rear chamber other parts 14 respectively.Cable is arranged at middle part, rear chamber, and current transformer 15 is installed at rear.
With reference to Fig. 3,4, the once end of described current transformer 15 and voltage transformer 18 is connected with main bus bar, secondary terminals is connected with gauge table, and high-tension fuse is connected in once between end of bus and voltage transformer, and 16 of isolating switches are connected between described bus and high-tension fuse 17.
The function that this cabinet is mainly realized has: high-tension fuse need overhaul while changing, by the isolator operation dish, isolating switch is divided and has no progeny, procedure lock on opening under panel with the procedure lock key on operation board, after opening panel, do not affecting (not having a power failure) conveniently replaced high-tension fuse under other switch cubicle electric power thus supplied.
With reference to Fig. 1,5, the cabinet front panel by front visiting, front in door 6, front Xiamen 9 form, rear board by after visit 21 and rear Xiamen 23 form, between the operation board 4 of wherein said isolating switch and front Xiamen 9, by 205 procedure locks, interlock, the operation board 4 of described isolating switch is arranged at the left side, cabinet front panel middle part side, front Xiamen 9 adopts procedure lock 8 lockings, and procedure lock key 5 is assemblied on isolator operation dish 4, with isolating switch, interlocks.Between front Xiamen 9 and front middle door 6, by interlocking baffle plate 7 interlockings, rear Xiamen is by electromagnetic lock 24 lockings, rear Xiamen 23 with after visit and interlock by interlocking plate washer 22 between 21.Before visit right door 3, front middle door 6, front Xiamen 9, after visit 21, rear Xiamen 23 is equipped with sealing device 2.
With reference to Fig. 6, top, rear Xiamen interlock plate forward successively, upwards, backward, upwards four times 90 degree bendings.In formation, a knuckle, play good booster action.
Claims (6)
1. the band of an anti-interlocking is isolated fixed metering cabinet, comprise metal cabinet, be furnished with bus, current transformer, voltage transformer, gauge table in described cabinet, the once end of described current transformer and voltage transformer is connected with bus, secondary terminals is connected with gauge table, bus and voltage transformer once between end, be connected with high-tension fuse, it is characterized in that the isolating switch of also contacting between described bus and high-tension fuse; The cabinet rear board be provided with corresponding inlet wire junction block after visit, the rear Xiamen of corresponding current instrument transformer and outlet junction block, the cabinet front panel be provided with corresponding gauge table before visit, the Qian Zhongmen of corresponding isolating switch, and the front Xiamen of corresponding high-tension fuse and voltage transformer, interlock by procedure lock between the operation board of described isolating switch and front Xiamen, interlock by the interlocking baffle plate between front middle Men Yuqian Xiamen.
2. the bands of according to claim 1 five anti-interlockings are isolated fixed metering cabinet, it is characterized in that, lock by electromagnetic lock rear Xiamen, rear Xiamen with after by the interlocking plate washer, interlock between visiting.
3. the band of according to claim 1 five anti-interlockings is isolated fixed metering cabinet, it is characterized in that, the interlocking baffle plate has the bending of four 90 degree on Width.
4. the band of according to claim 1 five anti-interlockings is isolated fixed metering cabinet, it is characterized in that, described cabinet inside is divided into cup and ，Liang chamber, rear chamber is separated by dividing plate, gauge table, isolating switch, high-tension fuse and voltage transformer are located at cup, and bus and current transformer are located at rear chamber.
5. the band of according to claim 4 five anti-interlockings is isolated fixed metering cabinet, it is characterized in that, the cup front upper place arranges control room, interior layout gauge table, with the cup other parts, by metal partion (metp), separated, described isolating switch is arranged in the cup middle part, and voltage transformer is arranged in the cup bottom, and high-tension fuse is arranged between isolating switch and voltage transformer.
6. the band of according to claim 1 five anti-interlockings is isolated fixed metering cabinet, it is characterized in that, the main bus bar chamber is separately established in top, rear chamber, and secondary bus-bar room is established in below, and major and minor bus-bar room and rear chamber other parts are separated by metal partion (metp); Between main bus bar chamber and secondary bus-bar room, be cable vault, current transformer is arranged at middle part, rear chamber rear side, with current transformer without the cable of annexation from front side, middle part, chamber pass through.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320467972 CN203367843U (en) | 2013-08-01 | 2013-08-01 | Five-prevention interlocking fixed type measuring cabinet with isolation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320467972 CN203367843U (en) | 2013-08-01 | 2013-08-01 | Five-prevention interlocking fixed type measuring cabinet with isolation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203367843U true CN203367843U (en) | 2013-12-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320467972 Expired - Fee Related CN203367843U (en) | 2013-08-01 | 2013-08-01 | Five-prevention interlocking fixed type measuring cabinet with isolation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203367843U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105429019A (en) * | 2015-12-29 | 2016-03-23 | 北京双杰电气股份有限公司 | Metering box |
| CN105977813A (en) * | 2016-06-30 | 2016-09-28 | 扬中市众成管路配件有限公司 | Novel cabinet body structure of power distribution cabinet |
| CN109274010A (en) * | 2018-12-01 | 2019-01-25 | 史少锋 | A kind of electric-power metering cabinet |
-
2013
- 2013-08-01 CN CN 201320467972 patent/CN203367843U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105429019A (en) * | 2015-12-29 | 2016-03-23 | 北京双杰电气股份有限公司 | Metering box |
| CN105977813A (en) * | 2016-06-30 | 2016-09-28 | 扬中市众成管路配件有限公司 | Novel cabinet body structure of power distribution cabinet |
| CN109274010A (en) * | 2018-12-01 | 2019-01-25 | 史少锋 | A kind of electric-power metering cabinet |
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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 |
Granted publication date: 20131225 Termination date: 20150801 |
|
| EXPY | Termination of patent right or utility model |