CN201219183Y - Large current and medium voltage switch cabinet - Google Patents
Large current and medium voltage switch cabinet Download PDFInfo
- Publication number
- CN201219183Y CN201219183Y CNU2008201029346U CN200820102934U CN201219183Y CN 201219183 Y CN201219183 Y CN 201219183Y CN U2008201029346 U CNU2008201029346 U CN U2008201029346U CN 200820102934 U CN200820102934 U CN 200820102934U CN 201219183 Y CN201219183 Y CN 201219183Y
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- static contact
- bus
- circuit breaker
- coupling assembling
- contact
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Abstract
A high-current medium-pressure switch cabinet of the utility model relates to a 12kV 6300A switch cabinet, which is object to resolve the off-capacity problem of the prior medium-pressure switch cabinet. The inner part of the metal cabinet body of the switch cabinet is separated into a low-pressure chamber, a cable chamber, a circuit breaker chamber and a bus chamber built-in with secondary instruments, wherein, the cable chamber is provided with copper cables and input-side movable and static contact coupling assembly; the circuit breaker chamber is provided with a circuit breaker, a handcart and a fan; the bus chamber is provided with an outlet side movable and static contact coupling assembly and a bus rows; the movable contacts in the input side movable and static contact coupling assembly and outlet side movable and static contact coupling assembly are dual-duck movable contact, the static contacts are T-shaped static contacts, and heat radiating fins are permanently installed on the static contacts; and the circuit breaker is a 12kV6300A- level modular vacuum generator import circuit breaker.
Description
Technical field
The utility model relates to a kind of controller switching equipment, particularly relates to the switch cubicle of a kind of 12kV 6300A.
Background technology
Existing big electric current Medium Voltage Switchgear can reach the level of 12kV 4000A, and its typical structure as shown in Figure 1.The inside of metal cabinet 1 is separated into low-pressure chamber 11, cable vault 12, breaker chamber 13 and bus-bar room 14 by metal partion (metp).In the low-pressure chamber 11 secondary meter is set.Be provided with copper bar 21, punching current transformer 22 and input side dynamic/static contact coupling assembling 23 in the cable vault 12.Punching current transformer 22 is sleeved on the copper bar 21.One end of copper bar 21 connects the input power supply, and the other end connects the fixed contact of input side dynamic/static contact coupling assembling 23.Circuit breaker 31, handcart 32 and fan 33 are set in the breaker chamber 13.Circuit breaker 31 is fixedly mounted on the handcart 32, can pull out breaker chamber 13 with handcart 32.Fan 33 is used for forcing to ventilating in the breaker chamber 13, to reduce the temperature of circuit breaker 31.Be provided with outlet side dynamic/static contact coupling assembling 41, bus row 42 and wall bushing 43 in the bus-bar room 14.Wall bushing 43 is fixed on the cabinet 1.An end of bus row 42 connects the fixed contact of outlet side dynamic/static contact coupling assembling 41, and the other end passes wall bushing 43 and draws cabinet 1.One end of circuit breaker 31 connects the moving contact in input side dynamic/static contact 23 coupling assemblings, and the other end connects the moving contact of outlet side dynamic/static contact coupling assembling 41.Because input side dynamic/static contact coupling assembling 23 and outlet side dynamic/static contact coupling assembling 41 all adopt the version of Mume flower contact, desire is brought up to the size that 6300A need increase dynamic/static contact significantly with capacity; And the size of dynamic/static contact can not guarantee the whole ring surface contact after increasing considerably, and can cause that passage section reduces, contact resistance increases, and heating is big.The temperature rise meeting that is produced thus causes copper bar 21 and bus to arrange 42 accelerated oxidations, and makes insulating part and secondary component in the switch cubicle take place to wear out, and makes the insulation property of equipment suffer brokenly to change the secondary component cisco unity malfunction.In addition, existing circuit breaker 31 is a solid sealing type vacuum circuit breaker, is not applicable to the product of the 12kV 6300A that uses in the switch cubicle.So still do not have the big electric current Medium Voltage Switchgear of 12kV 6300A at present both at home and abroad, can not satisfy the needs of distribution network.
The utility model content
A kind of big electric current Medium Voltage Switchgear of the 12kV of providing 6300A capacity is provided the utility model.
The technical solution of the utility model is: big electric current Medium Voltage Switchgear, and in being separated into, the inside of metal cabinet establishes low-pressure chamber, cable vault, breaker chamber and the bus-bar room of secondary meter; Be provided with copper bar and input side dynamic/static contact coupling assembling in the cable vault; Circuit breaker, handcart and fan are set in the breaker chamber; Be provided with outlet side dynamic/static contact coupling assembling, bus row in the bus-bar room; Moving contact in input side dynamic/static contact coupling assembling and the outlet side dynamic/static contact coupling assembling is two group duckbilled moving contacts, and fixed contact is two group T shape fixed contacts, fixedly mounts fin on the fixed contact; Circuit breaker is the modular vacuum generator import circuit breaker of 12kV 6300A level.
In the enforcement structure of optimizing: have louvre on the contact box in described input side dynamic/static contact coupling assembling and the outlet side dynamic/static contact coupling assembling, and between the body of contact box and fixed contact, leave space over against louvre.
Recommend to adopt: described cable vault and bus-bar room all are provided with fan.
And: side plate and dividing plate that described cabinet is positioned at cable vault and bus-bar room adopt inner surface to scribble the corrosion resistant plate of pitch-dark layer.
The big electric current Medium Voltage Switchgear of the utility model, the moving contact in input side dynamic/static contact coupling assembling and the outlet side dynamic/static contact coupling assembling adopt two group duckbilled moving contacts, and fixed contact adopts two group T shape fixed contacts, fixedly mounts fin on the fixed contact; Two groups of duckbilled moving contacts cooperate the contact area when having increased clamping with two group T shape fixed contacts; Occasion at big current work can reduce overall dimension effectively.And fin increase cooling surface area is set on fixed contact, reduce temperature rise; Can reduce the oxidation of the copper bar that is connected with fixed contact, thereby reduce loop resistance; And can prevent switch cubicle generation open circuit fault.Above-mentioned dynamic/static contact jockey adopts the overall dimensions of the dynamic/static contact jockey of Mume flower contact, compact conformation in the overall dimensions of the user mode of 12kV 6300A is slightly less than the medium voltage switchgear equipment of prior art 12kV 4000A.The utility model is broken through designer's custom thinking, adopts the modular vacuum generator import circuit breaker of the 12kV6300A level of using in the common environment in the open, has solved the problem of still not having the 12kV 6300A circuit breaker that uses in the cabinet at present; Advantages such as this circuit breaker has compact conformation, and is natural air cooled, and mounting means is flexible and non-maintaining.After two groups of T shape fixed contacts are fixed with the contact box of band louvre, certain space is arranged, heat can be taken away from the space, thereby reduce temperature rise for circulation of air.In cable vault and bus-bar room fan is set, impels the cooling of input side dynamic/static contact coupling assembling and outlet side dynamic/static contact coupling assembling.The side plate and the dividing plate that are positioned at cable vault and bus-bar room at cabinet adopt inner surface to scribble the corrosion resistant plate of pitch-dark layer, can avoid the magnetic eddy current to produce heat; And, make it outwards to distribute by the heat in pitch-dark layer acceleration absorption cable vault and the bus-bar room.The big electric current Medium Voltage Switchgear of this utility model adopts a series of cooling measures, makes the interior temperature rise of switch cubicle little, and the insulating part that can reduce in the switch cubicle takes place to wear out, and the insulation property of equipment can not destroyed, and satisfies the requirement that works long hours of 6300A electric current; Can also protect simultaneously the secondary component operate as normal and take place aging.
Description of drawings
Fig. 1 is the structural representation of existing 12kV 4000A switch cubicle.
Fig. 2 is the cross-sectional view of an embodiment of the big electric current Medium Voltage Switchgear of the utility model.
Fig. 3 is the external structure schematic diagram of Fig. 2 embodiment.
Fig. 4 is the deployed configuration schematic diagram of Fig. 2 embodiment input side dynamic/static contact coupling assembling.
Embodiment
A 12kV 6300A of the big electric current Medium Voltage Switchgear of the utility model embodiment uses as the incoming line cabinet of transformer station, can improve the outlet load capacity greatly, makes transformer station under situation about not extending, and allows the user to be with more load.The structure of this switch cubicle as shown in Figure 2.This switch cubicle, the inside of metal cabinet 100 is separated into low-pressure chamber 110, cable vault 120, breaker chamber 130 and bus-bar room 140 by metal partion (metp).Side plate and dividing plate that cabinet 100 is positioned at cable vault 120 and bus-bar room 140 adopt inner surface to scribble the corrosion resistant plate of 2 millimeters thick of pitch-dark layer, fully with the bolt splicing, have characteristics such as anti-eddy current and mechanical strength height after double-deck bending.The side plate of low-pressure chamber 110 and breaker chamber 130 and dividing plate adopt and cover aluminium zinc steel plate, fully with the bolt splicing, have stronger corrosion resistance and enough mechanical strengths after double-deck bending.
In the low-pressure chamber 110 secondary meter is set, this is a known technology, does not do and gives unnecessary details.
Be provided with copper bar 210, punching current transformer 220, input side dynamic/static contact coupling assembling 230 and fan 240 in the cable vault 120.For ease of being connected with the high voltage source of bus bridge, copper bar 210 is outwards drawn from the top of cabinet 100.Punching current transformer 220 is located at the rear side at cabinet 100 tops and is sleeved on the copper bar 210.The upper end of copper bar 210 connects the input power supply, and the lower end connects the fixed contact 2340 of input side dynamic/static contact coupling assembling 230.The fan 240 of 270W is installed in 120 bottoms, cable vault, and forced ventilation is to strengthen radiating effect.
The structure of input side dynamic/static contact coupling assembling 230 is please referring to Fig. 4: it comprises contact box 2320, fixed contact 2340, fin 2350 and moving contact.One end of contact box 2320 opens wide, and admits moving contact.Moving contact is two contact arms 2310 and two groups of two group duckbilled moving contacts that duckbilled contact 2330 is formed.Fixed contact 2340 is two group T shape fixed contacts.Two electrodes of fixed contact 2340 pass the via hole of contact box 2320 bottom correspondences respectively, stretch in the contact box 2320; Fixed contact 2340 is fixedly mounted on the bottom of contact box 2320; Fixed contact 2340 is positioned at fixed installation fin 2350 on contact box 2320 body outward.Two groups of duckbilled contacts, 2330 difference of moving contact are clamping fixed contact 2340 corresponding electrode separably, form to be electrically connected.The bottom of contact box 2320 has louvre, leaves the space over against louvre between the body of the bottom of contact box 2320 and fixed contact 2340, so that distribute the heat that fixed contacts 2340 and moving contact contact site are produced in the contact box 2320.
Be provided with outlet side dynamic/static contact coupling assembling 410, bus row 420, wall bushing 430 and fan 440 in the bus-bar room 140.For ease of being connected with the main bus bar of bus bridge, bus row 420 outwards draws from the top of cabinet 100.Wall bushing 430 is fixed on cabinet 100 tops.Bus row 420 lower end connects the fixed contact of outlet side dynamic/static contact coupling assembling 410, and the upper end is passed wall bushing 430 and drawn cabinet 100.The structure of outlet side dynamic/static contact coupling assembling 410 is identical with the structure of input side dynamic/static contact coupling assembling 230, repeats no more.The fan of 270W is equipped with on bus-bar room 140 tops, and forced ventilation is strengthened heat radiation.
One end of circuit breaker 310 connects the moving contact in input side dynamic/static contact 230 coupling assemblings, and the other end connects the moving contact of outlet side dynamic/static contact coupling assembling 410.
High voltage source enters this switch cubicle embodiment from bus bridge, is connected to the fixed contact 2340 of input side dynamic/static contact coupling assembling 230 by copper bar 210 and punching current transformer 220, delivers to circuit breaker 310 through the moving contact of correspondence; Deliver on the bus bridge main bus bar through the moving contact of circuit breaker 310 and outlet side dynamic/static contact coupling assembling 410 and fixed contact and bus row 420 again
When handcart 320 when cabinet 100 is pulled out, circuit breaker 310 separates with corresponding fixed contact respectively with the moving contact of the moving contact of input side dynamic/static contact coupling assembling 230 and outlet side dynamic/static contact coupling assembling 410, and circuit breaker 310 is pulled out breaker chamber 130 with handcart 320.And when handcart 320 pushes cabinet 100, circuit breaker 310 enters breaker chamber 130 with handcart 320, circuit breaker 310 with the moving contact of the moving contact of input side dynamic/static contact coupling assembling 230 and outlet side dynamic/static contact coupling assembling 410 respectively with corresponding fixed contact clamping.
Fig. 3 illustrates the external structure of present embodiment, the A of corresponding AC power has copper bar 210-A and bus row 420-A mutually as can see from Figure 3, the B of corresponding AC power has copper bar 210-B (not shown) and bus row 420-B mutually, the C of corresponding AC power has copper bar 210-C and bus row 420-C mutually, that is to say A, B, the C three-phase of the cabinet 100 interior corresponding AC power of present embodiment, corresponding input side dynamic/static contact coupling assembling 230, circuit breaker 310, the outlet side dynamic/static contact coupling assembling 410 of three covers arranged.Their structure and annexation no longer repeat all as mentioned above.
The above only is the utility model preferred embodiment, does not limit the scope that the utility model is implemented with this, and the equivalence of doing according to the technical solution of the utility model and description changes and modification, all should belong to the scope that the utility model is contained.
Claims (4)
1. big electric current Medium Voltage Switchgear is established low-pressure chamber, cable vault, breaker chamber and the bus-bar room of secondary meter in the inside of metal cabinet is separated into; Be provided with copper bar and input side dynamic/static contact coupling assembling in the cable vault; Circuit breaker, handcart and fan are set in the breaker chamber; Be provided with outlet side dynamic/static contact coupling assembling, bus row in the bus-bar room; It is characterized in that: the moving contact in input side dynamic/static contact coupling assembling and the outlet side dynamic/static contact coupling assembling is two group duckbilled moving contacts, and fixed contact is two group T shape fixed contacts, fixedly mounts fin on the fixed contact; Circuit breaker is the modular vacuum generator import circuit breaker of 12kV6300A level.
2. big electric current Medium Voltage Switchgear according to claim 1, it is characterized in that: have louvre on the contact box in described input side dynamic/static contact coupling assembling and the outlet side dynamic/static contact coupling assembling, and between the body of contact box and fixed contact, leave space over against louvre.
3. big electric current Medium Voltage Switchgear according to claim 1 and 2, it is characterized in that: described cable vault and bus-bar room all are provided with fan.
4. big electric current Medium Voltage Switchgear according to claim 1 and 2 is characterized in that: side plate and dividing plate that described cabinet is positioned at cable vault and bus-bar room adopt inner surface to scribble the corrosion resistant plate of pitch-dark layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201029346U CN201219183Y (en) | 2008-07-02 | 2008-07-02 | Large current and medium voltage switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201029346U CN201219183Y (en) | 2008-07-02 | 2008-07-02 | Large current and medium voltage switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201219183Y true CN201219183Y (en) | 2009-04-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201029346U Expired - Lifetime CN201219183Y (en) | 2008-07-02 | 2008-07-02 | Large current and medium voltage switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201219183Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102299491A (en) * | 2011-06-16 | 2011-12-28 | 杭州恒信电气有限公司 | Vapor chamber for heat radiation of large-current switch cabinet |
| CN102570930A (en) * | 2011-11-10 | 2012-07-11 | 能科节能技术股份有限公司 | Modularized medium-voltage solid soft starter cabinet |
| CN107424851A (en) * | 2016-05-23 | 2017-12-01 | Ls 产电株式会社 | Breaker |
| US9865405B2 (en) | 2015-02-03 | 2018-01-09 | General Electric Company | Fixed contact for joining a bus bar and a sliding contact of an electrical switchgear |
| CN110380281A (en) * | 2019-08-22 | 2019-10-25 | 山东光韵智能科技有限公司 | A kind of high-tension switch cabinet quickly connected |
| CN112635205A (en) * | 2020-11-24 | 2021-04-09 | 天津平高智能电气有限公司 | Static contact for switch cabinet and switch cabinet |
-
2008
- 2008-07-02 CN CNU2008201029346U patent/CN201219183Y/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102299491A (en) * | 2011-06-16 | 2011-12-28 | 杭州恒信电气有限公司 | Vapor chamber for heat radiation of large-current switch cabinet |
| CN102570930A (en) * | 2011-11-10 | 2012-07-11 | 能科节能技术股份有限公司 | Modularized medium-voltage solid soft starter cabinet |
| CN102570930B (en) * | 2011-11-10 | 2014-10-08 | 能科节能技术股份有限公司 | Modularized medium-voltage solid soft starter cabinet |
| US9865405B2 (en) | 2015-02-03 | 2018-01-09 | General Electric Company | Fixed contact for joining a bus bar and a sliding contact of an electrical switchgear |
| CN107424851A (en) * | 2016-05-23 | 2017-12-01 | Ls 产电株式会社 | Breaker |
| EP3249671A3 (en) * | 2016-05-23 | 2018-03-07 | LSIS Co., Ltd. | Circuit breaker |
| US10079130B2 (en) | 2016-05-23 | 2018-09-18 | Lsis Co., Ltd. | Circuit breaker |
| CN110380281A (en) * | 2019-08-22 | 2019-10-25 | 山东光韵智能科技有限公司 | A kind of high-tension switch cabinet quickly connected |
| CN110380281B (en) * | 2019-08-22 | 2020-09-15 | 山东光韵智能科技有限公司 | High tension switchgear of high-speed joint |
| WO2021031257A1 (en) * | 2019-08-22 | 2021-02-25 | 山东光韵智能科技有限公司 | Quick connection high-voltage switch cabinet |
| CN112635205A (en) * | 2020-11-24 | 2021-04-09 | 天津平高智能电气有限公司 | Static contact for switch cabinet and switch cabinet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090408 |