CN204793799U - In put formula cubical switchboard - Google Patents

In put formula cubical switchboard Download PDF

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Publication number
CN204793799U
CN204793799U CN201520394627.XU CN201520394627U CN204793799U CN 204793799 U CN204793799 U CN 204793799U CN 201520394627 U CN201520394627 U CN 201520394627U CN 204793799 U CN204793799 U CN 204793799U
Authority
CN
China
Prior art keywords
bus
circuit breaker
handcart
room
switchgear cabinet
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
Application number
CN201520394627.XU
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Chinese (zh)
Inventor
潘华政
潘华明
陈兆贵
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Dajing Electrical Equipment Co Ltd
Original Assignee
Shanghai Dajing Electrical Equipment Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shanghai Dajing Electrical Equipment Co Ltd filed Critical Shanghai Dajing Electrical Equipment Co Ltd
Priority to CN201520394627.XU priority Critical patent/CN204793799U/en
Application granted granted Critical
Publication of CN204793799U publication Critical patent/CN204793799U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to an electric device technical field specifically is an in put formula cubical switchboard, and the circuit breaker indoor location has the guide rail, is equipped with the handcart on the guide rail, and the handcart can be followed the guide rail and removed between indoor " the work " of circuit breaker position and " experiment / isolation ", is equipped with the valve mechanism before the static contact of circuit breaker room, the bus -bar room is used for installing the main bus -bar, installs the static contact box between bus -bar room and the circuit breaker, be equipped with interlock on the cable chamber door. The utility model discloses have and prevent area load push -and -pull circuit breaker handcart, prevent a deciliter circuit breaker, prevent to close when earthing switch is in closed position to close the circuit breaker, prevent that the mistake from going into electrified compartment, prevent to close earthing switch's functions such as interlocking in electrified mistiming, but both adapted VS1 vacuum circuit breaker, but the circuit breaker of the multiple model of adapted, the suitability is strong, the superior performance. Four independent compartments such as circuit breaker room, bus -bar room, cable chamber, instrument room are separated into by the metal partition of ground connection to the cubical switchboard, and mutual noninterference can prevent effectively that the trouble of each room from enlarging.

Description

A kind of intermediate switchgear cabinet
[technical field]
The utility model relates to electric device technical field, specifically a kind of intermediate switchgear cabinet.
[background technology]
Intermediate switchgear cabinet, full name is metal armouring middle disposed withdrawn type switchgear.Belonging to high voltage distribution installation, maximum operating voltage 3.6/7.2/12kV, is the indoor complete power distribution equipment of three-phase alternating current 50Hz sectionalized single busbar connection system or double-bus segmented system.For accepting and the network power of the 3.6-12kV that provides and delivers, and Control protection, monitoring and measuring are carried out to power circuit.Intermediate switchgear cabinet is mainly used in power plant, the power transmission of medium and small generator, powered, the power transmission of electric power system secondary substation, the distribution of industrial and mineral enterprises and institutions, and the starting etc. of Large-scale High-Pressure motor.
Intermediate switchgear cabinet of the prior art in use circuit breaker easily breaks down at earthed switch place, causes mistakenly entering into charged compartment, and closes the interlock of earthed switch in charged mistiming, safe and reliable not.
[utility model content]
The purpose of this utility model is exactly easily to break down the deficiency and defect that cause electric accident to solve intermediate switchgear cabinet in prior art, a kind of novel structure is provided, safe and reliable, a kind of intermediate switchgear cabinet of device security stable operation when can effectively ensure to use, comprise breaker chamber, bus-bar room, cable vault, control room, it is characterized in that, in described breaker chamber, guide rail is installed, guide rail is provided with handcart, handcart can move along between " work " position of guide rail in breaker chamber and " test/isolation " position, before the fixed contact of breaker chamber, valve mechanism is housed, described bus-bar room, for installing main bus bar, is provided with fixed contact box between bus-bar room and circuit breaker, described cable chamber door is provided with interlock.
Valve mechanism is that metallic plate is made and the two metal dampers mechanisms of overlapping independent activities or the nonmetal valve mechanism adopting SMC composite material to make up and down of ground connection.
Separated by bus wall bushing between breaker chamber, bus-bar room, cable vault, control room.
Bus-bar room is provided with branch's busbar, is positioned at " work " Wei Shi branch busbar is connected by the fixed contact of fixed contact box and handcart moving contact at handcart.
Be provided with current transformer, earthed switch, lightning arrester, heater and cable in cable vault, the setting height(from bottom) of cable is for exceeding base surface 750mm, and the entrance hole place of cable is provided with detachable nonmetal shrouding or tower wire bushing.
Control room is built with microcomputer protecting device, instrument, relay, signal designation, console switch components and parts.
Top, control room is provided with little bus-bar room, and lay and control little bus, individual layer can fill at most 13 little buses of Φ 6 red copper bar.
Pressure release passage is provided with above breaker chamber, bus-bar room, cable vault.
Described handcart is divided into circuit breaker cart, isolation handcart, voltage mutual inducer trolley.
Described intermediate switchgear cabinet also comprises one for delivering the transfer car(buggy) of handcart, and described transfer car(buggy) is provided with locking mechanism.
The utility model compared with the existing technology, its advantage is that the utility model meets the standard-requireds such as DL/T404, IEC298, GB3906, have and prevent on-load push-and-pull circuit breaker cart, prevent a deciliter circuit breaker, close circuit breaker when preventing earthed switch to be in make position, prevent mistakenly entering into charged compartment, prevent from closing in charged mistiming the functions such as the interlocking of earthed switch, both can adapted VS1 vacuum circuit-breaker, can the circuit breaker of adapted Multiple Type, applicability is strong, superior performance.The dividing plate of the shell of switch cubicle and the unit of each function adopts import aluminizing zine plate and high-quality cold-rolled steel sheet after Digit Control Machine Tool processing bending and forming, assemble with high strength cup type Maolock and riveting nut bolt, cabinet size can be kept unified, handcart interchangeability is good, has very high mechanical strength and very strong resistance to corrosion.Cabinet panel spraying coating process adopts electrostatic powder automatic spraying production line, has the advantages such as finish paint is attractive in appearance, strong adhesion, corrosion-resistant, hardness is high, anti-aging, guarantor's light colour retention is good.Switch cubicle is separated into four individual compartment such as breaker chamber, bus-bar room, cable vault, control room by the metal partion (metp) of ground connection, does not interfere with each other, effectively can prevent the failure propagation of each room.
[accompanying drawing explanation]
Fig. 1 is the external structure schematic diagram of the utility model embodiment;
Fig. 2 is that the internal main of the utility model embodiment wants structural representation;
As shown in the figure, in figure: D. control room 1. of A. bus-bar room B. circuit breaker C. cable vault bus casing 2. analog bus Fig. 3. shrouding 10. current transformer 11. earthed switch 12. cable 13. main earth bus 14. lightning arrester 15. circuit breaker cart 16. aerial plug-in unit 17. 2 withdrawable horizontal baffles of little bus-bar room 18. pressure release cover plate 19. suspension ring 20. valve mechanism 21. after handcart room observation window 4. nameplate 5. main bus bar 6. branch bar 7. fixed contact 8. contact box 9.;
Fig. 2 is specified to be Figure of abstract of the present utility model.
[embodiment]
Below in conjunction with accompanying drawing, the utility model is described in further detail, and the structure of this device and principle are very clearly concerning the people of this specialty.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
The utility model mainly comprises breaker chamber, bus-bar room, cable vault, control room, pressure release passage, pull-out type handcart, transfer car(buggy) and prevents misoperation apparatus.
The specific guide rail of circuit breaker indoor location, moves for handcart, and has the locking of significantly " work ", " test " position between " work " position and " test/isolation " position.Be equipped with before fixed contact and make and the two metal dampers mechanisms of overlapping self-movements or the nonmetal valve mechanism adopting SMC material to make up and down of ground connection with metallic plate, upper and lower valve can automatically be opened or automatically close in handcart motion process, during maintenance, valve can lock, can guarantee that handcart is in " work ", " test " or complete withdrawn position, switch cubicle band point part all can obtain effective security protection, ensures the safety of operating personnel and maintenance personal.
For installing main bus bar in bus-bar room, be provided with fixed contact box between bus-bar room and breaker chamber, handcart " work " Wei Shi bus-bar room branch busbar is connected by the fixed contact in fixed contact box and handcart contact.Separate with bus wall bushing between cabinet and cabinet.
Space, cable vault is large, can install current transformer, earthed switch, lightning arrester, heater and cable, and reliable interlock is housed on cable chamber door.Cable setting height(from bottom) can exceed base surface 750mm, can connect multi-cable, and its entrance hole place is provided with detachable nonmetal shrouding or tower wire bushing to facilitate site operation.
Control room is for installing the components and parts such as all kinds of microcomputer protecting device, instrument, relay, signal designation, console switch; and can according to user's requirement; set up little bus-bar room at top, control room, lay and control little bus, individual layer can fill at most 13 little buses of Φ 6 red copper bar.
Drain passage is provided with above breaker chamber, bus-bar room, cable vault.When indoor generation internal fault during arcing, room pressure rises, and after reaching certain pressure, the metallic plate at top is opened automatically, and gases at high pressure are rapidly to discharge, release pressure, thus guarantees the safety of operating personnel and switch cubicle.
Pull-out type handcart can be divided into circuit breaker cart, isolation handcart, voltage mutual inducer trolley according to different purposes, fuse handcart etc., the handcart of same model specification has good interchangeability, handcart has in cabinet " work ", " isolation/test " position, each position is equipped with positioner, reliable to ensure handcart interlocking.Handcart pushes in cabinet by transfer car(buggy), is inserted by handcart chassis jam plate in the spacing hole of cabinet both sides, and now handcart is in " test/isolation " position.Special for handcart propelling handle is inserted in the handle hole of chassis, rotates clockwise, make handcart be advanced to " work " position from " isolation/test " position.By the operation sequence on cabinet door, inserted special for handcart propelling handle in the handle hole of chassis, inhour is rotated, make handcart from " work " position is released " test/isolate " position.Handcart adopts screw mandrel propulsive mechanism, advances, releases very easily reliably.When handcart puts in place, and send sound prompting, handle cannot be rotated further simultaneously, but does not overexert, in order to avoid damage mechanism.
Enter for the ease of handcart and exit cabinet, be designed with the delivery vehicle of transfer car(buggy) as handcart, its structure is simple, volume is little, and is provided with locking mechanism.Flexibly, can share a transfer car(buggy) by multiple stage handcart, it is convenient that the handcart in order to same size exchanges, and the handcart of general same size configures two transport carriages in carrying.
Switch cubicle of the present utility model has perfect, safe and reliable interlock, for operating maintenance personnel and switchgear provide safety guarantee, meets the requirement of " five prevent " locking specified in GB3906 standard completely.Only have when circuit breaker cart is in " test " position or " work " position, circuit breaker just to carry out point/closing operation, to exit or in the process that advances, circuit breaker cannot close a floodgate at circuit breaker cart, prevents by mistake point, falsely close circuit breaker.When circuit breaker is in "on" position, circuit breaker cart cannot exit or advance, and only have when circuit breaker is in gate-dividing state, circuit breaker cart just can be released or advance, and realizes preventing on-load from dividing by mistake, closing insulating contact by mistake.Interlocking device is provided with between circuit breaker and earthed switch.During circuit breaker cart is in " work " position, earthed switch cannot close a floodgate, and only have when circuit breaker cart is withdrawn into " test " position, earthed switch could close a floodgate, and closes earthed switch to prevent charged situation ShiShimonoseki.When earthed switch be in close state time, circuit breaker cart cannot enter into " work " position from " test " position, to prevent power transmission before grounding switch tripping.Earthed switch does not close a floodgate, and after cabinet Xiamen and cabinet, cable chamber door all cannot be opened, and when cable chamber door and the non-Close All in front Xiamen, earthed switch cannot separating brake, thus when ensureing power transmission, cabinet door is closed, to prevent from being strayed into a band point interval.In order to reach " five prevent " safety, between each cabinet additional, electrical interlock can be installed.When handcart is in " work " position, secondary aviation plug is locked, and cannot extract; Only have when handcart falls back on " test/isolation " position, secondary aviation plug just can be extracted.

Claims (10)

1. an intermediate switchgear cabinet, comprise breaker chamber, bus-bar room, cable vault, control room, it is characterized in that, in described breaker chamber, guide rail is installed, guide rail is provided with handcart, handcart can move along between " work " position of guide rail in breaker chamber and " test/isolation " position, before the fixed contact of breaker chamber, valve mechanism is housed; Described bus-bar room, for installing main bus bar, is provided with fixed contact box between bus-bar room and circuit breaker; Described cable chamber door is provided with interlock.
2. a kind of intermediate switchgear cabinet as claimed in claim 1, is characterized in that described valve mechanism is that metallic plate is made and the two metal dampers mechanisms of overlapping independent activities or the nonmetal valve mechanism adopting SMC composite material to make up and down of ground connection.
3. a kind of intermediate switchgear cabinet as claimed in claim 1, is characterized in that being separated by bus wall bushing between described breaker chamber, bus-bar room, cable vault, control room.
4. a kind of intermediate switchgear cabinet as claimed in claim 1, is characterized in that described bus-bar room is provided with branch's busbar, is positioned at " work " Wei Shi branch busbar is connected by the fixed contact of fixed contact box and handcart moving contact at handcart.
5. a kind of intermediate switchgear cabinet as claimed in claim 1, it is characterized in that being provided with current transformer, earthed switch, lightning arrester, heater and cable in described cable vault, the setting height(from bottom) of cable is for exceeding base surface 750mm, and the entrance hole place of cable is provided with detachable nonmetal shrouding or tower wire bushing.
6. a kind of intermediate switchgear cabinet as claimed in claim 1, is characterized in that described control room is built with microcomputer protecting device, instrument, relay, signal designation, console switch components and parts.
7. a kind of intermediate switchgear cabinet as claimed in claim 6, is characterized in that described top, control room is provided with little bus-bar room, and lay and control little bus, individual layer can fill at most 13 little buses of Φ 6 red copper bar.
8. a kind of intermediate switchgear cabinet as claimed in claim 1, is characterized in that being provided with pressure release passage above breaker chamber, bus-bar room, cable vault.
9. a kind of intermediate switchgear cabinet as claimed in claim 1, is characterized in that described handcart is divided into circuit breaker cart, isolation handcart, voltage mutual inducer trolley.
10. a kind of intermediate switchgear cabinet as claimed in claim 1, it is characterized in that described intermediate switchgear cabinet also comprises one for delivering the transfer car(buggy) of handcart, described transfer car(buggy) is provided with locking mechanism.
CN201520394627.XU 2015-06-09 2015-06-09 In put formula cubical switchboard Expired - Fee Related CN204793799U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520394627.XU CN204793799U (en) 2015-06-09 2015-06-09 In put formula cubical switchboard

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520394627.XU CN204793799U (en) 2015-06-09 2015-06-09 In put formula cubical switchboard

Publications (1)

Publication Number Publication Date
CN204793799U true CN204793799U (en) 2015-11-18

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ID=54533783

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520394627.XU Expired - Fee Related CN204793799U (en) 2015-06-09 2015-06-09 In put formula cubical switchboard

Country Status (1)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105720494A (en) * 2016-04-26 2016-06-29 吴江变压器有限公司 10kV high-tension switch cabinet capable of being installed against wall
CN108092172A (en) * 2017-11-22 2018-05-29 湖南湘能电力强弱电实业有限公司 A kind of compact drawing type high voltage switch cabinet

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105720494A (en) * 2016-04-26 2016-06-29 吴江变压器有限公司 10kV high-tension switch cabinet capable of being installed against wall
CN108092172A (en) * 2017-11-22 2018-05-29 湖南湘能电力强弱电实业有限公司 A kind of compact drawing type high voltage switch cabinet

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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: 20151118

Termination date: 20190609