CN2836283Y - Armored central enclosed AC metal switch apparatus - Google Patents

Armored central enclosed AC metal switch apparatus Download PDF

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Publication number
CN2836283Y
CN2836283Y CN 200520113668 CN200520113668U CN2836283Y CN 2836283 Y CN2836283 Y CN 2836283Y CN 200520113668 CN200520113668 CN 200520113668 CN 200520113668 U CN200520113668 U CN 200520113668U CN 2836283 Y CN2836283 Y CN 2836283Y
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CN
China
Prior art keywords
cabinet
chamber
circuit breaker
cabinet body
cable
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
CN 200520113668
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Chinese (zh)
Inventor
张公禄
洪福贤
林必宝
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.)
HANGZHOU ELECTRICAL APPLIANCES SWITCHES CO Ltd
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HANGZHOU ELECTRICAL APPLIANCES SWITCHES 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 HANGZHOU ELECTRICAL APPLIANCES SWITCHES CO Ltd filed Critical HANGZHOU ELECTRICAL APPLIANCES SWITCHES CO Ltd
Priority to CN 200520113668 priority Critical patent/CN2836283Y/en
Application granted granted Critical
Publication of CN2836283Y publication Critical patent/CN2836283Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to an armored central-arrangement type AC metal close switch device which comprises a cabinet body and a movable part, wherein the cabinet body is divided into a circuit breaker chamber, a bus chamber, a cable chamber and a relay meter chamber by grounding metal plates arranged in the cabinet body; the movable part comprises a propelling and retreat mechanism and an interlocking mechanism; a left bracket (27) and a right bracket (32) are arranged on a bottom board (26) and respectively used for supporting a left upright post (25) and a right upright post (15); installation gears connected with each other to form a framework of the cabinet body are arranged between the brackets and the upright posts; the middle part of the cabinet body is provided with a middle partition board (11), a cable trough (12) and backwards-curved boards (20) and (29); a housing of the cabinet body and the partition board are formed by bolt connection after machining and bending of thin steel boards coated with aluminum and zinc by a CNC machine tool; the front upper part of the cabinet body is provided with the meter chamber (3); the lower part of the meter chamber (3) is provided with a circuit breaker handcart (37) adopting a central arrangement mode; the back part of the cabinet body is respectively provided with the bus chamber, the circuit breaker chamber and the cable chamber; a main switch of the equipment adopts a vacuum circuit breaker; the connection of moving and still contact heads of the circuit breaker chamber adopt a full-insulation mode. The central-arrangement cabinet has the advantages of safe use and superior performance, and has the function of wrong operation prevention.

Description

Armouring middle ac metal closing switch gear
Technical field
The utility model relates to a kind of armouring middle ac metal closing switch gear, relates in particular to the complete power distribution equipment of a kind of 3.6-12kV three-phase alternating current 50Hz single busbar connection and sectionalized single busbar connection system.
Background technology
In the complete power distribution equipment of 3.6-12kv, because external like product technology content is higher, but its price is also high, is difficult for being accepted by the domestic user.The switch cubicle great majority of the old-fashioned substation operation of China's electric power system all are the semienclosed switch cubicles of the imitated former Soviet Union.And most switch cubicle all is to adopt the mode of welding to connect, and troublesome poeration and maintenance workload are big.
Summary of the invention
The purpose of this utility model provides a kind of rational in infrastructure, and stable performance is easy to maintenance, and cost performance is higher, and handcart is mid-and adopt the switchgear of armored.
It is light that the purpose of this utility model provides a kind of total quality, equipment intensity height, the armored switchgear of safety and stability.This equipment is mainly used in the power plant, and medium and small generator send.The usefulness of control protection, monitoring is carried out in being subjected to electricity, sending the electricity and the starting of large-scale high-tension motor etc. of the secondary substation of industrial and mineral enterprises and institutions distribution and electric power system.
Technical solution of the present utility model is: a kind of armouring middle ac metal closing switch gear, comprise cabinet and can remove the parts two large divisions, cabinet is divided into breaker chamber by the metallic plate of inner ground connection, bus-bar room, cable vault and relay control room, can remove parts and have propelling, drawing-out mechanism and interlocking device, wherein left socle 27 and right support 32 are arranged on the base plate 26 and are used for carries left column 25 and right column 15 respectively, at support, there is the retaining of installation to link to each other between the column and constitutes the cabinet skeleton, be provided with median septum 11 at the cabinet middle part, trough 12 and back bent plate 20,29, the shell of cabinet and dividing plate are to be formed by aluminizing zinc sheet metal bolt after CNC lathe (computer numerical control (CNC) lathe) processing and bending;
Front upper part at cabinet is control room 3, is the circuit breaker cart 37 that adopts mid-mode below the control room 3, is respectively bus-bar room, breaker chamber and cable vault at the rear portion of cabinet;
The equipment main switch adopts vacuum circuit-breaker, and the breaker chamber dynamic/static contact connects all insulation mode that adopts.
Switchgear adopts middle, and current transformer 44, earthed switch 45 are installed on the compartment back-wall; Lightning arrester 47 is installed on the compartment rear lower; Circuit breaker cart 37 slidably arrives the service position on guide rail 36.
The shell of cabinet is to be made by the thick aluminizing zinc sheet metal of 2mm, and adopts screw or bolt to connect.The main material of equipment is to be made by cold-rolled steel sheet, stainless steel, aluminium sheet, steel, cold-drawn round steel.The nonmetal shrouding of detachable that cracks of preparation or magnetic conductive metal shrouding not at the bottom of the cabinet of tie cable.
The design high starting point, its specification requirement not only meets related standards regulation, and some special requirements of satisfying Chinese market and power department design.In the switchgear design, at first select the electric elements of some world today's advanced levels, guaranteed the excellent electrical properties of whole device like this; Consideration need be taked the design of reinforced insulation type to Chinese market and some special areas, no matter from air gap and creepage than satisfying service requirement some harsh and unforgiving environments on the distance, has overcome the weak point in some imported products and the introducing product like this; Aluminizing zinc steel plate has been selected in the cabinet design for use; modular construction; middle arranges, circuit breaker adopts all insulation to be mainly used in being subjected to electricity, sending electricity and large-scale high-tension motor starting etc. to carry out the usefulness of control protection, monitoring of secondary substation that power plant, medium and small generator send electricity, industrial and mineral enterprises and institutions distribution and electric industry system.
This switchgear satisfies standard-requireds such as IEC298, GB3906, have the on-load of preventing push-and-pull circuit breaker cart, prevent mistake deciliter circuit breaker, prevent to close when earthed switch is in make position and close circuit breaker, prevent the mistakenly entering into charged isolation ward, prevent interlock at charged mistiming splice grafting ground switch.But both homemade ZN63 vacuum circuit-breakers of adapted, but the disconnected device of the VD4 of adapted ABB AB vacuum again, real is a kind of power distribution equipment of superior performance.
Description of drawings
Figure 1 shows that the front view of switchgear main structure;
Figure 2 shows that the left view of switchgear main structure;
The A-A that Figure 3 shows that switchgear main structure among Fig. 1 is to view;
The B-B that Figure 4 shows that switchgear main structure among Fig. 1 is to view;
Figure 5 shows that C is to view among Fig. 4;
Figure 6 shows that D-D is to view among Fig. 3;
Figure 7 shows that the front view of switchgear;
Figure 8 shows that the general assembly drawing of switchgear.
Specific embodiment
Switchgear is by fixing cabinet and can extract parts (handcart) two parts out and form, handcart employing middle.Cabinet is realized assemblingization fully, be to use the part after CNC lathe (computer numerical control (CNC) lathe) processing and bending to form by the high-strength bolt bolt, the assembly unit of tank bracket part does not allow to use welding procedure, consider cabinet overall appearance and local strength's requirement, have only panel, back shrouding and indivedual metalworking part just can use welding procedure.
The switchgear casing part all adopts the thick aluminizing zinc of 2mm steel plate to make through multiple bending, has the intensity height, need not any surface treatment and still keep good anticorrosion, antioxygenic property.The switchgear compartment will adopt grounding plate separately strict.Its compartment mainly is divided into circuit breaker cart chamber, bus-bar room, cable vault and relay control room.Need there be abundant space bus-bar room, cable vault, when satisfying air clear distance 125mm, also need guarantee the facility of installing, safeguarding.
Press standard-required, switch cubicle need have safe and reliable interlocking device.The handcart skeleton adopts sheet metal rivet welding after the CNC machine tooling to form.Handcart need be equipped with flexibly, advance reliably and withdraw from operation and interlocking device, and handcart has tangible service position in the cabinet domestic demand, test position/open position, and the locking positioning device is arranged.
The degree of protection of switchgear shell is IP4X, and the degree of protection between compartment is IP2X.And when the breaker chamber door was opened, the degree of protection of breaker chamber was IP2X.Switchgear satisfies following requirement of shelter, can:
A) prevent on-load push-and-pull circuit breaker cart;
B) prevent to divide by mistake, close circuit breaker;
Close when c) preventing that earthed switch is in make position and close circuit breaker;
D) prevent at charged mistiming splice grafting ground switch;
Below in conjunction with accompanying drawing the utility model is described, the base plate 26 of switchgear is provided with left socle 27 and right support 32, and is used for carries left column 25 and right column 15 respectively, also is equipped with retaining 31,33 is installed between support, column.The fixing part 28 of cable shrouding 30 and bottom plate is connected on support 27,32 or the column 15,25 by screw 21,22 etc.Following bent plate 16, median septum 11, current transformer 14, circuit breaker 10, pretectum 2, top cover 4, suspension ring 6 and control room 3 all are installed on the switchgear skeleton that is made of support and column by bolt from the bottom to top.
Handcart and cabinet insulation coordination, mechanical interlocking safety, reliable, flexible.According to the purposes difference, handcart divides circuit breaker cart, voltage transformer handcart, metering handcart, isolates handcart, all kinds of handcart by modulus, and cordwood system type changes, and the same specification handcart can absolutely freely exchange.Handcart has open position/test position and service position in cabinet, each position all has positioner respectively.Reliably must operate to guarantee interlocking by interlocking anti-misoperation program.Various handcarts all adopt worm gear, worm screw to shake propelling, withdraw from.Its operation is light, flexible, is suitable for various operator on duty's operations, when handcart need be removed cabinet, with a special-purpose fortune car, just can carry out various inspections, maintenance so that take out; And the employing middle, whole dolly volume is little, and it is all extremely convenient to check, safeguard.
By dividing plate switchgear breaker chamber, bus-bar room, cable vault and relay control room have been divided into.Left and right sides track 36 has been installed in circuit breaker isolation ward both sides, slides to the service position by moving every position/test position in cabinet for circuit breaker cart 37.The dividing plate of fixed contact box (valve) is installed on the rear wall of handcart chamber, and when handcart moves to from open position/test position the process of service position, valve on the upper and lower fixed contact box and circuit breaker cart 37 interlocks are opened simultaneously automatically; Valve auto-closing then retreats to certain position and covers the fixed contact box fully until handcart when in the other direction mobile, forms effective isolation, because upper and lower valve does not link, when maintenance, thereby guarantees that the repair and maintenance personnel do not touch electrified body simultaneously.When the breaker chamber door was closed, circuit breaker cart 37 can be operated equally, by observation window to the doorstep, can observe handcart position in the compartment, closed, separating brake shows the energy storage situation.
Main bus bar is that the separate unit splicing runs through connection mutually in the bus-bar room.Fix by branch bus and fixed contact box, main bus bar and interbus are the square-section copper bar; Adopt the double joint busbar to be combined into when being used for high current load.
Cable isolation ward space is bigger, and current transformer 14, earthed switch 45 are contained on the compartment back-wall, and lightning arrester 47 is installed on the compartment rear lower, and after circuit breaker cart 3 and withdrawable horizontal baffle were removed, the workmen just can enter installation and maintenance in the cabinet from the front.The nonmetal shrouding of detachable that cracks of preparation or magnetic conductive metal shrouding are not guaranteed construction at the bottom of the cabinet of tie cable.
Relaying protection element, instrument, charged supervision indicating device are installed in the relay control room, and the secondary device of specific (special) requirements.Control circuit is laid in the wire casing in enough spaces, and metal cover board is arranged, and secondary line and hyperbaric chamber are isolated.Its left side wire casing is for the introduction of controlling little line and draws reservation that the little wire routing of switch cubicle self inside is on the right side.On the top board of relay control room, also leave the little bus of being convenient to construct and pass through the hole.During wiring, control room's lamina tecti can be convenient to the installation of little bus for upset.
When preventing to be equipped with in the misoperation interlock safe and reliable interlocking and putting, satisfy five anti-requirements fully.
1, suggestive button or KK type change over switch are housed on control room's door, to prevent that mistake from closing, mistake is divided circuit breaker;
2, circuit breaker cart is when test or service position.Circuit breaker just can close the branch operation, and behind breaker closing, handcart can't move, and has prevented on-load push-and-pull circuit breaker;
3, only when earthed switch is in the separating brake position, circuit breaker cart could move to the service position from test/open position, and only when circuit breaker cart is in test/disconnected position, earthed switch just can carry out closing operation (earthed switch can display unit with voltage).Realized preventing charged mistake splice grafting ground switch like this and prevented to close when earthed switch is in make position closing circuit breaker;
When 4, earthed switch was in the separating brake position, Xiamen and back door all can't be opened, and had prevented the mistakenly entering charged chamber circuit breaker cart really in test or service position, and when not controlling voltage, and only manual separating brake can not close a floodgate;
5, circuit breaker cart is when the service position, and secondary plug is locked can not be pulled out; Each cabinet can be adorned electrical interlock.
The selectable unit that detects the primary circuit operation is charged display unit, this device is made up of high pressure sensor and portable display Unit two, connect as one through the external conductor wire of user, this device not only can be pointed out the high tension loop electriferous state, but also can cooperate with electromagnetism, realize forced blocking switch knob, net door, reach and prevent splice grafting ground, charged pass switch, prevent mistakenly entering charged chamber, thereby improve the anti-error performance of auxiliary products.
In order to prevent in the bigger climatic environment of high humility or variations in temperature, to produce the danger that condensation brings, in breaker chamber and cable vault, install heater respectively, so that among above-mentioned environment, use and prevent that corrosion from taking place.
In the cable vault, set up the ground connection copper bar of 10mm * 40mm separately, this row can be run through adjacent cabinet, and good the contact arranged with cabinet, this ground connection row uses for the components and parts of direct ground connection, simultaneously because whole cabinet is pieced together connection mutually with the aluminizing zine plate, whole cabinet all is among the good earth state, guarantees that the operation personnel touch cabinet safety.

Claims (5)

1, a kind of armouring middle ac metal closing switch gear, comprise cabinet and can remove the parts two large divisions, cabinet is divided into breaker chamber, bus-bar room, cable vault and relay control room by the metallic plate of inner ground connection, can remove parts and have propelling, drawing-out mechanism and interlocking device, it is characterized in that:
Left socle (27) and right support (32) are arranged on the base plate (26) and are used for carries left column (25) and right column (15) respectively, between support, column, there is the retaining of installation to link to each other and constitutes the cabinet skeleton, be provided with median septum (11), trough (12) and back bent plate (20 at the cabinet middle part, 29), the shell of cabinet and dividing plate are to be formed by aluminizing zinc sheet metal bolt after CNC machine tooling and bending;
Front upper part at cabinet is control room (3), is the circuit breaker cart (37) that adopts mid-mode below control room (3), is respectively bus-bar room, breaker chamber and cable vault at the rear portion of cabinet;
The equipment main switch adopts vacuum circuit-breaker, and the breaker chamber dynamic/static contact connects all insulation mode that adopts.
2, switchgear according to claim 1 is characterized in that switchgear adopts middle, and current transformer (44), earthed switch (45) are installed on the compartment back-wall;
Lightning arrester (47) is installed on the compartment rear lower; Circuit breaker cart (37) slidably arrives the service position on guide rail (36).
3, switchgear according to claim 1 and 2, the shell that it is characterized in that cabinet are to be made by the thick aluminizing zinc sheet metal of 2mm, and adopt screw or bolt to connect.
4, switchgear according to claim 1 and 2 is characterized in that: the main material of cabinet is to be made by cold-rolled steel sheet, stainless steel, aluminium sheet, steel, cold-drawn round steel.
5, switchgear according to claim 4 is characterized in that preparation is cracked at the bottom of the cabinet of tie cable nonmetal shrouding of detachable or magnetic conductive metal shrouding not.
CN 200520113668 2005-07-14 2005-07-14 Armored central enclosed AC metal switch apparatus Expired - Fee Related CN2836283Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200520113668 CN2836283Y (en) 2005-07-14 2005-07-14 Armored central enclosed AC metal switch apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200520113668 CN2836283Y (en) 2005-07-14 2005-07-14 Armored central enclosed AC metal switch apparatus

Publications (1)

Publication Number Publication Date
CN2836283Y true CN2836283Y (en) 2006-11-08

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102074908A (en) * 2011-01-13 2011-05-25 武汉中直电气股份有限公司 Logic control interlocking structure for handcart in-out and manual separate-switch brake of circuit breaker
CN102723677A (en) * 2012-06-29 2012-10-10 上海纳杰电气成套有限公司 Back sealing plate structure with electric lock and matched with metal armored switch cabinet
CN103219668A (en) * 2012-12-23 2013-07-24 川铁电气(天津)集团有限公司 Armoured move-apart type metal-enclosed switchgear for electrified railway
CN103368098A (en) * 2012-03-30 2013-10-23 遵义长征输配电设备有限公司 A high-pressure metallic armored movable switch cabinet applicable to plateau environment
CN103490305A (en) * 2013-10-12 2014-01-01 昆山振宏电子机械有限公司 Cable-passing board assembly
CN104393521A (en) * 2014-12-29 2015-03-04 苏州市龙源电力科技股份有限公司 Metal armoured draw-out type switchgear
CN105896357A (en) * 2016-06-06 2016-08-24 柳州市海格电气有限公司 Fabrication method of 35kV fixed switch cabinet
CN105958364A (en) * 2016-05-18 2016-09-21 南通阿斯通电器制造有限公司 Novel inflation ring main unit
CN107680332A (en) * 2017-09-29 2018-02-09 中冶华天南京电气工程技术有限公司 One kind prevents high-tension switch cabinet maloperation alarming device
CN109421979A (en) * 2017-09-05 2019-03-05 克朗斯股份公司 For marking the labeller of container

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102074908B (en) * 2011-01-13 2013-03-13 武汉中直电气股份有限公司 Logic control interlocking structure for handcart in-out and manual separate-switch brake of circuit breaker
CN102074908A (en) * 2011-01-13 2011-05-25 武汉中直电气股份有限公司 Logic control interlocking structure for handcart in-out and manual separate-switch brake of circuit breaker
CN103368098A (en) * 2012-03-30 2013-10-23 遵义长征输配电设备有限公司 A high-pressure metallic armored movable switch cabinet applicable to plateau environment
CN102723677B (en) * 2012-06-29 2015-03-11 上海纳杰电气成套有限公司 Back sealing plate structure with electric lock and matched with metal armored switch cabinet
CN102723677A (en) * 2012-06-29 2012-10-10 上海纳杰电气成套有限公司 Back sealing plate structure with electric lock and matched with metal armored switch cabinet
CN103219668A (en) * 2012-12-23 2013-07-24 川铁电气(天津)集团有限公司 Armoured move-apart type metal-enclosed switchgear for electrified railway
CN103490305A (en) * 2013-10-12 2014-01-01 昆山振宏电子机械有限公司 Cable-passing board assembly
CN104393521A (en) * 2014-12-29 2015-03-04 苏州市龙源电力科技股份有限公司 Metal armoured draw-out type switchgear
CN105958364A (en) * 2016-05-18 2016-09-21 南通阿斯通电器制造有限公司 Novel inflation ring main unit
CN105896357A (en) * 2016-06-06 2016-08-24 柳州市海格电气有限公司 Fabrication method of 35kV fixed switch cabinet
CN109421979A (en) * 2017-09-05 2019-03-05 克朗斯股份公司 For marking the labeller of container
CN107680332A (en) * 2017-09-29 2018-02-09 中冶华天南京电气工程技术有限公司 One kind prevents high-tension switch cabinet maloperation alarming device
CN107680332B (en) * 2017-09-29 2020-05-08 中冶华天南京电气工程技术有限公司 Warning device for preventing misoperation of 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

Granted publication date: 20061108

Termination date: 20140714

EXPY Termination of patent right or utility model