CN203434513U - Metal armoring fixed type AC switch metering box - Google Patents
Metal armoring fixed type AC switch metering box Download PDFInfo
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- CN203434513U CN203434513U CN201320463586.6U CN201320463586U CN203434513U CN 203434513 U CN203434513 U CN 203434513U CN 201320463586 U CN201320463586 U CN 201320463586U CN 203434513 U CN203434513 U CN 203434513U
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Abstract
The utility model belongs to the power transmission and distribution technical field and discloses a metal armoring fixed type AC switch metering box which comprises a metal box; the inner of the metal box is provided with a bus, a current transformer, a voltage transformer and a meter; the primary ends of the current transformer and the voltage transformer are in connection with the bus and the secondary ends are in connection with the meter; a high voltage fuse is in series connection between the bus and the primary end of the voltage transformer. The metering box is characterized in that an isolation switch is in series connection between the bus and the high voltage fuse. According to the utility model, based on a present fixed type metering box, the isolation switch is arranged between the main bus on a primary loop of the voltage transformer and the high voltage fuse so as to replace a high voltage fuse without interrupting a power supply. The metal armoring fixed type AC switch metering box is simple to operate and convenient to use and is safe and reliable.
Description
Technical field
The utility model belongs to 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.Withdraw-type metering cabinet refers in cabinet that partly or entirely electric equipment and device are contained on dolly, can leave cabinet with dolly.
Mobile metering cabinet overhauls or if desired, 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, be still widely used.
Common fixed metering is comprised of electric component in cabinet and cabinet, is generally separated into several chambers in cabinet, is respectively used to arrange gauge table, bus, high-tension fuse and voltage transformer (PT) etc., to prevent that electric component from disturbing 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.
In the middle of metering cabinet, high-tension fuse is with respect to the easiest fault of other element or damage, the frequency that maintenance is changed is relatively high, owing to connecing main bus bar on high-tension fuse, with high voltage electric energy, therefore generally when high-tension fuse is changed in maintenance, need to have a power failure and process (metering cabinet end of incoming cables is without independent switch) electric power system, can operate, this can lead other switch cubicle power failure, impact power supply.
Summary of the invention
The purpose of this utility model is for the existing the problems referred to above of existing switch metering cabinet, proposes a kind of constantly electric-examination and repaiies the switch metering cabinet of changing high-tension fuse.
For achieving the above object, the technical solution used in the present invention is: the fixed alternating-current switch metering cabinet of a kind of metal armouring, comprise metal cabinet, in described cabinet, be furnished with bus, current transformer, voltage transformer, gauge table, the once end of described current transformer and voltage transformer is connected with bus, secondary terminals is connected with gauge table, at 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 utility model, on the basis of existing fixed metering cabinet, increases by an isolating switch on voltage transformer primary circuit between main bus bar and high-tension fuse.Its advantage is: when high-tension fuse is changed, do not need to have a power failure, as long as disconnect isolating switch assurance fuse place chamber without electricity, open Qianmen and just can carry out the replacing of high-tension fuse.Simple to operate, easy to use, safe and reliable.
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 chamber, front and back is separated by isolating switch, disconnects after isolating switch, and cup, can safety inspection without forceful electric power.Rear chamber element because of the dividing plate between chamber, front and back on cup without impact, during maintenance, rear chamber is without power-off.Safe enough is reliable.
More specifically, cup front upper place arranges control room, for arranging gauge table, separated by metal partion (metp) with cup other parts, described isolating switch is arranged in cup middle part, and voltage transformer is arranged in cup bottom, high-tension fuse be arranged in isolating switch and and voltage transformer between.
This set fully takes into account using and operating of metering cabinet, and the height design of metering cabinet is conventionally suitable with general adult's height, and gauge table is positioned at 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 is just people while naturally standing, and arm is by naturally drooping the height that under state, toggle hand lifts slightly, the handled easily personnel disconnecting switch operation of naturally standing.Tripping fuse is arranged in middle and lower part, and operating personnel only need micro-crouching can overhaul replacing, especially convenient.
Further, 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, passes through from front side, middle part, rear chamber with the cable of current transformer without annexation.The utility model makes full use 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.
Accompanying drawing explanation
Fig. 1 is the Facad structure schematic diagram of a kind of embodiment of the disclosed metering cabinet of the utility model.
Fig. 2 is that shown in Fig. 1, internal structure schematic diagram is looked on a metering cabinet left side.
Fig. 3 be shown in Fig. 1 after metering cabinet face analyse structural representation.
Fig. 4 is metering cabinet circuit theory diagrams shown in Fig. 1 (isolating switch off-states).
Fig. 5 is metering cabinet circuit theory diagrams shown in Fig. 1 (isolating switch closure states).
Embodiment
Below in conjunction with accompanying drawing, with a kind of specific embodiments, this practicality is described further.
With reference to Fig. 1,2,3, 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 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 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 inlet wire junction block, and the in-built outlet junction block of secondary bus-bar room 19 is established in bottom.Major and 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.
Before cabinet front panel comprises, visit, front middle door 6, front Xiamen 9, before visit and formed by left and right two clamshell doors 1,3, 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, procedure lock key 5 is assemblied on isolator operation dish 4, interlocks with isolating switch.In front, between door 6 and front Xiamen 9, by interlocking baffle plate 7, interlock.After visit with rear Xiamen by interlocking baffle plate 22 interlocking, rear Xiamen is locked by electromagnetic lock 24; 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. 4,5, 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 isolator operation dish, isolating switch is divided and had no progeny, procedure lock on opening under panel with the procedure lock key on operation board, open after panel, do not affecting (not having a power failure) conveniently replaced high-tension fuse under other switch cubicle electric power thus supplied.
Claims (4)
1. the fixed alternating-current switch metering cabinet of metal armouring, comprise metal cabinet, in described cabinet, be furnished with bus, current transformer, voltage transformer, gauge table, 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.
2. the fixed alternating-current switch metering cabinet of metal armouring according to claim 1, is characterized in that, 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.
3. the fixed alternating-current switch metering cabinet of metal armouring according to claim 1, it is characterized in that, described cup front upper place arranges control room, in control room, arrange gauge table, control room and cup other parts are separated by metal partion (metp), described isolating switch is arranged in cup middle part, and voltage transformer is arranged in cup bottom, high-tension fuse be arranged in isolating switch and and voltage transformer between.
4. the fixed alternating-current switch metering cabinet of metal armouring according to claim 1, it is characterized in that, main bus bar chamber is established in top, rear chamber, secondary bus-bar room is established in below, 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, passes through from front side, middle part, rear chamber with the cable of current transformer without annexation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320463586.6U CN203434513U (en) | 2013-08-01 | 2013-08-01 | Metal armoring fixed type AC switch metering box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320463586.6U CN203434513U (en) | 2013-08-01 | 2013-08-01 | Metal armoring fixed type AC switch metering box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203434513U true CN203434513U (en) | 2014-02-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320463586.6U Expired - Fee Related CN203434513U (en) | 2013-08-01 | 2013-08-01 | Metal armoring fixed type AC switch metering box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203434513U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107611799A (en) * | 2017-10-24 | 2018-01-19 | 湖州电力设备成套有限公司 | A kind of compact comprehensive distribution cabinet |
-
2013
- 2013-08-01 CN CN201320463586.6U patent/CN203434513U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107611799A (en) * | 2017-10-24 | 2018-01-19 | 湖州电力设备成套有限公司 | A kind of compact comprehensive distribution 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: 20140212 Termination date: 20150801 |
|
| EXPY | Termination of patent right or utility model |