CN201199609Y - Novel AC metal closed switch installation - Google Patents

Novel AC metal closed switch installation Download PDF

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Publication number
CN201199609Y
CN201199609Y CNU2008200007354U CN200820000735U CN201199609Y CN 201199609 Y CN201199609 Y CN 201199609Y CN U2008200007354 U CNU2008200007354 U CN U2008200007354U CN 200820000735 U CN200820000735 U CN 200820000735U CN 201199609 Y CN201199609 Y CN 201199609Y
Authority
CN
China
Prior art keywords
chamber
novel
bus
switch gear
closing switch
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 - Lifetime
Application number
CNU2008200007354U
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Chinese (zh)
Inventor
胡长征
周永耀
汤瑞云
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.)
FOSHAN NANHUA SWITCHGEAR Co Ltd
Original Assignee
FOSHAN NANHUA SWITCHGEAR 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 FOSHAN NANHUA SWITCHGEAR Co Ltd filed Critical FOSHAN NANHUA SWITCHGEAR Co Ltd
Priority to CNU2008200007354U priority Critical patent/CN201199609Y/en
Application granted granted Critical
Publication of CN201199609Y publication Critical patent/CN201199609Y/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model relates to a novel alternating-current metal-enclosed switchgear, comprising a busbar chamber, a switch chamber, a cable chamber, a mechanism meter chamber and a circuit breaker chamber that are arranged inside the cabinet body; the circuit breaker chamber and the cable chamber are arranged at the lower part of the cabinet body, the busbar chamber is arranged at the back-upper part of the alternating-current metal-enclosed switchgear, a low voltage chamber is arranged right-upper of the busbar chamber, the mechanism meter chamber is arranged at the lower part of the low voltage chamber, the isolating switch is arranged among the busbar chamber, the circuit breaker and the cable chamber, metal partitions are arranged between the busbar chamber, the circuit breaker chamber and the cable chamber; the mechanism meter chamber is positioned at the front-upper part of the alternating-current metal-enclosed switchgear; and a main busbar can extent on both sides. The utility model busbar chamber which adopts vertical arranged miniaturized isolating switch with visible fracture, is safe and reliable; the back, middle and front of the circuit breaker is arranged longitudinally, thus forming a circuit breaker cabinet module with a modulated design; the dimension of the switch cabinet is small; an operating mechanism is arranged in front of the switch cabinet, therefore, the maintenance and the check are convenient; the arc extinguishing chamber of the circuit breaker adopts an all-insulated design.

Description

A kind of novel ac metal closing switch gear
Technical field
The utility model relates to a kind of high voltage distribution installation, particularly a kind of novel ac metal closing switch gear.
Background technology
At the nineties initial stage in last century, the switchgear of China's urban distribution network mostly adopts fixed switch cubicle identical with major network or handcart cabinet.Their common feature is that floor space is big, price is expensive, development along with urban construction, adopt high-tension cable to replace overhead wire more and more, the ring main unit that a kind of novel sulphur hexafluoride on-load switch is formed has replaced above-mentioned breaker cabinet, its floor space and price all are 50% of breaker cabinet, have reduced the area and the cost of power distribution room, have obtained the extensive use popularization.
Along with the increase of the capacity of urban power distribution network, when user's transformer capacity surpassed 1250kVA, the technical parameter of on-load switch can not satisfy the protection requirement of this transformer.Need a kind of novel breaker cabinet of exploitation, its overall dimension is similar to the sulfur hexafluoride ring network cabinet, and protective value can satisfy the requirement of big capacity distribution transformer, and can form the module of combination in any with loading switch cabinet.
Existing fixed formula switch cubicle and handcart cabinet complexity, volume is big, it is big to take up an area of the ground area, price is expensive, and the three-phase arc control device transverse arrangement of turbo of circuit breaker, can not with combinations such as SF6 loading switch cabinet module, combined electrical apparatus cabinet module, metering cabinet module.
Summary of the invention
The purpose of this utility model is to overcome the defective of prior art, provide a kind of simple and reasonable for structure, perfect in shape and function, optimization, volume is little, in light weight, can combination in any with SF6 loading switch cabinet module, combined electrical apparatus cabinet module, metering cabinet module etc., reach complete modular novel ac metal closing switch gear.
The purpose of this utility model is achieved through the following technical solutions:
A kind of novel ac metal closing switch gear, comprise bus-bar room, switch gear room, cable vault and mechanism control room, the breaker chamber be located in the cabinet, described breaker chamber, cable vault connect and are located at the cabinet bottom, described bus-bar room is located at the upper back of ac metal closing switch gear, described low-pressure chamber is located at the upper right side of bus-bar room, described mechanism control room is located at the low-pressure chamber bottom, described isolating switch is located between bus-bar room and circuit breaker, the cable vault, is provided with metal partion (metp) between described bus-bar room and breaker chamber, the cable vault.
Described mechanism control room is located at the front upper part of ac metal closing switch gear.
The main bus bar of described bus-bar room can be expanded to both sides.
The main bus bar of described bus-bar room adopts heat-shrinkable T bush to form insulation system.
Described cable vault is provided with voltage transformer, lightning arrester and the following earthed switch that is connected with current transformer.
Described cable head height 750mm.
Described mechanism control room is provided with the pop-up indicator that is connected with switch spindle.
Described long cable section of ingoing line end is provided with charged demonstration insulator, and the mechanism control room is provided with charged display unit.
Described operating mechanism is provided with " five is anti-" interlocking with door.
Described switch cubicle rear portion is provided with safe pressure relief device.
Described switch cubicle degree of protection is IP3X.
The utility model can reach following beneficial effect after adopting technique scheme:
1, reasonable in design, simple.
The utility model is brought up to 1250A with rated current from 630A, and rated short circuit drop-out current is brought up to 31.5kA from 25kA, to satisfy user's requirement.In addition, vacuum interrupter is done external insulation with poured with epoxy resin, and promptly the pole type structure has improved insulating reliability.
1) compare with external advanced level distribution breaker cabinet: external breaker cabinet bus-bar room is installed the SF6 on-load switch and is done isolation fracture, as the SM6 switch cubicle of French Merlin Gerin.Its shortcoming is no visible fracture, and directly perceived inadequately during interruption maintenance, personal safety guarantee degree is poor.The utility model overall dimension can with SF6 loading switch cabinet combination in any, visible fracture is arranged, the personal safety when guaranteeing overhaul of the equipments.
2) homemade medium voltage breaker three-phase arc control device left, center, right transverse arrangement of turbo, the switch cubicle size is bigger, can't with the SF6 on-load switch combination in any of distribution.Behind the vacuum circuit-breaker three-phase arc control device of the utility model configuration, in, preceding vertical layout, the design of arc control device all insulation, volume is little, forms the breaker cabinet module, the floor space about 50% of having dwindled switch cubicle.
3) circuit breaker is selected the spring operating mechanism of vertical layout for use, and condensation and the pollution test of II level have been passed through in the anti-misoperation perfect in shape and function.
4) rated current of novel high-pressure switch cubicle is 1250A, can the protection capacity reaches the distribution transformer of 10000kVA; The rated current of combined electrical apparatus cabinet is 125A, can only protect the following distribution transformer of capacity 1250kVA.Whole device is reasonable in design, simple, but practical.
2, combination flexibly.Behind the utility model switchgear main bus bar, isolating switch, the circuit breaker three-phase, in, preceding layout, form the breaker cabinet module, can with combination in any such as loading switch cabinet module, combined electrical apparatus cabinet module, metering cabinet module, reach full modularization, dwindled the floor space of switch cubicle.
3, easy to maintenance.The operating mechanism of the utility model circuit breaker is arranged in the front of switch cubicle door, can easily mechanism be safeguarded and overhaul.
4, fail safe is good.The design of the utility model arc-extinguishing chamber of circuit breaker all insulation, safe and reliable, volume is little.
5, technical parameter is good.Be higher than prior art and external like product mechanical endurance of the present utility model.
6, reduced cost.The utility model has reduced about 50% than other like products, so cost performance is good.
7, attractive in appearance.After adopting the utility model, the user can reduce high voltage power distribution room area, concerning the city of an inch of land is an inch of gold, can save an investment.In addition, the switch cubicle of this project can be contained in the box-type substation, has both saved investment, and good looking appearance has beautified urban environment again.
8, applied widely.The utility model is applicable to ac high-voltage 10kV ring network power supply, terminal use's distribution substation, switching station; In user's such as industrial and mining enterprises, skyscraper the power distribution room or prefabricated substation.
9, purposes is wide.The utility model can be as the incoming line cabinet of distribution substation; become loading switch cabinet---the backup protection of fuse cabinet; again can be as the outlet cabinet; protection and control capacity are greater than the distribution transformer of 1250kV; can also be as the incoming line cabinet and the network interconnecting circuit cabinet of dual power supply, have than loading switch cabinet purposes widely.
10, reduced consumer cost.The utility model has reduced the consumption of electric energy, realizes the sustainable development of the energy, has reduced cost significantly, has the vast market economic benefit.
Description of drawings
Fig. 1---A is a prior art external structure schematic diagram;
Fig. 1---B is a prior art internal structure schematic diagram;
Fig. 2---A is the utility model internal structure schematic diagram;
Fig. 2---B is the utility model external structure schematic diagram;
Fig. 3 is the bus-bar room structural representation in the utility model;
Fig. 4 is a spring actuating mechanism of vacuum circuit-breaker schematic diagram in the utility model.
Description of reference numerals
A. the bus-bar room B. breaker chamber C. D. of the cable vault relay E. of control room low-pressure chamber F. mechanism chamber G. breaker, 2. busbars of the 1.1. of cable vault pressure release cover plate 1.2. secondary passage cover plate 1. cabinets, 3. bus casings, 4. main bus-bars, 5. static contacts, 6. contact boxs, 7. current transformers, 8. cables, 9. earthed switches, 10. arresters, 11. earth bus are arranged 32. deciliters indications of 12. dividing plates, 13. valve, 14. secondary contact seats, 15. circuit breaker carts, 16. heaters, 17. median septums, 18. earthed switch operating axis, 19. base plates, 20. isolating switches, 21. branch bus, 22. breakers, 23. earthed switches, 24. current transformers, 25. energy storage motors, 26. combined floodgate cams, 27. energy storage gears, 28. switching-in springs, 29. closing coils, 30. switching windings, 31. calculators, 33. auxiliary switches, 34. energy storage travel switches, 35. energy storage indication.
Embodiment
Below in conjunction with drawings and the specific embodiments the utility model is described in further detail:
Referring to Fig. 1
Fig. 1---A is a prior art external structure schematic diagram; Fig. 1---B is a prior art internal structure schematic diagram.The prior art switchgear is divided into bus-bar room A, breaker chamber B, the C of cable vault and the D of control room.Bus-bar room A is positioned at the upper back of switchgear, and breaker chamber B is positioned at the front middle part of switchgear, and the C of cable vault is positioned at the rear lower of switchgear, and the D of control room is positioned at the front upper part of switchgear.Its annexation once: cable 8 enters from the C of cable vault, is connected to branch bus 2, and branch bus 2 is connected to current transformer 7, is connected to circuit breaker cart 15 then, is connected to main bus bar 4 by branch bus 2 again, and last main bus bar 4 stretches to both sides.
Prior art switchgear overall dimension is bigger, complex structure, and the selection of material is many, and the cost height is its shortcoming.Special in the power distribution network of urban network reconstruction, reduce floor space, few maintenance, non-maintaining very important.
Referring to Fig. 2
Fig. 2---A is the utility model internal structure schematic diagram; Fig. 2---B is the utility model external structure schematic diagram.In Fig. 2, high-tension switch cabinet is divided into bus-bar room A, low-pressure chamber E, chamber F of mechanism and circuit breaker, the G of cable vault.Bus-bar room A is positioned at the upper back of high-tension switch cabinet, circuit breaker, the G of cable vault are positioned at the bottom of high-tension switch cabinet, low-pressure chamber E is positioned at the front upper part of ac high-voltage switch cubicle, and the chamber F of mechanism is positioned at the middle front part of high-tension switch cabinet, and isolating switch 20 is separated bus-bar room A and circuit breaker, the G of cable vault.An annexation of high-tension switch cabinet: cable enters high-tension switch cabinet from circuit breaker, the G of cable vault, be connected to branch bus 21, branch bus 21 is connected to earthed switch 23 and current transformer 24, be connected to circuit breaker 22 by current transformer 24 then, circuit breaker 22 is connected to isolating switch 20, be connected to main bus bar 4 by isolating switch 20 again, last main bus bar 4 stretches to both sides.
Circuit breaker, the G of cable vault the inside are provided with vacuum circuit-breaker 22 summation current transformers 24.Can see the branch of isolating switch 20 and earthed switch 23, the state of combined floodgate by observation window.
The operating mechanism of circuit breaker 22 is positioned at the outside of switch cubicle door, have on mechanism's panel the ON/OFF button of circuit breaker and machinery branch, close the energy storage/release condition indicating device of position indicating device, spring, by the stored energy operation handle, mechanism can carry out the hand-power stored energy operation.
Circuit breaker, the G of cable vault can also install lightning arrester and earthed switch 23.
The utlity model has " five anti-interlockings " function:
One, when circuit breaker 22 during in the separating brake position, isolating switch 20 just can carry out branch, closing operation;
Two, isolating switch 20 is when the separating brake position, and earthed switch 23 just can carry out branch, closing operation;
Three, earthed switch 23 is when closing position, and isolating switch 20 can not carry out closing operation;
Four, after earthed switch 23 closed a floodgate, the switch cubicle door just can be opened;
Five, after the switch cubicle door was opened, isolating switch 20 can not carry out closing operation.
Alternative:
One, circuit breaker is when separating brake, and the metering cabinet door of adjacent cabinet or isolating switch cabinet door just can be opened on this loop.
When two, the metering cabinet door of adjacent cabinet or isolating switch cabinet door were shut, circuit breaker could close a floodgate.
Three, circuit breaker is when separating brake, and the isolating switch of adjacent cabinet just can be opened on this loop.
Low-pressure chamber E in the utility model is used to install the secondary component of switch cubicle.Itself and hyperbaric chamber isolate fully, reach metal enclosed IP3X.Low-pressure chamber E configurable Microcomputer Protection unit or common protective relaying device.
Referring to Fig. 3
Fig. 3 is the bus-bar room structural representation in the utility model.In Fig. 3, the main bus bar 4 of described bus-bar room A causes another switch cubicle from a switch cubicle, is fixed on the rotary switch junction block, and 20 times terminal blocks of isolating switch and branch bar 21 are fixing.Separate with metal partion (metp) between bus-bar room A and circuit breaker, the G of cable vault, degree of protection is IP2X.If customer requirements can be adorned insulating sleeve and metal partion (metp) on the bus between the switch cubicle, prevent that the bus-bar room fault from expanding other switch cubicle to.
Referring to Fig. 4
Fig. 4 is a spring actuating mechanism of vacuum circuit-breaker schematic diagram in the utility model.In Fig. 4, three utmost points of described spring actuating mechanism of vacuum circuit-breaker and circuit breaker are in line and vertically arrange, operating mechanism can be installed in switch cubicle outdoors, when the charged operation of circuit breaker, can not have a power failure and pull down mechanism's panel, secondary circuits such as operating mechanism and auxiliary switch 33 thereof are checked or a little maintenance.
Operating mechanism and circuit breaker integrated arrangement, its drive system structure is simple, and it is few to adjust link, has fully guaranteed the mechanical property parameter of arc control device, can reach more than 20000 times the breaker reliability height mechanical endurance.
Other technologies of the present utility model can adopt prior art.

Claims (10)

1. novel ac metal closing switch gear, comprise bus-bar room, switch gear room, cable vault and mechanism control room, the breaker chamber be located in the cabinet, it is characterized in that: described breaker chamber, cable vault connect and are located at the cabinet bottom, described bus-bar room is located at the upper back of ac metal closing switch gear, described low-pressure chamber is located at the upper right side of bus-bar room, described mechanism control room is located at the low-pressure chamber bottom, described isolating switch is located between bus-bar room and circuit breaker, the cable vault, is provided with metal partion (metp) between described bus-bar room and breaker chamber, the cable vault.
2. a kind of novel ac metal closing switch gear according to claim 1, it is characterized in that: described mechanism control room is located at the front upper part of ac metal closing switch gear.
3. a kind of novel ac metal closing switch gear according to claim 1, it is characterized in that: the main bus bar of described bus-bar room can be expanded to both sides.
4. a kind of novel ac metal closing switch gear according to claim 1 is characterized in that: the main bus bar of described bus-bar room adopts heat-shrinkable T bush to form insulation system.
5. a kind of novel ac metal closing switch gear according to claim 1 is characterized in that: described cable vault is provided with voltage transformer, lightning arrester and the following earthed switch that is connected with current transformer.
6. a kind of novel ac metal closing switch gear according to claim 5 is characterized in that: described cable head height 750mm.
7. a kind of novel ac metal closing switch gear according to claim 1, it is characterized in that: described mechanism control room is provided with the pop-up indicator that is connected with switch spindle.
8. a kind of novel ac metal closing switch gear according to claim 1 is characterized in that: described long cable section of ingoing line end is provided with charged demonstration insulator, and the mechanism control room is provided with charged display unit.
9. a kind of novel ac metal closing switch gear according to claim 1 is characterized in that: described operating mechanism is provided with " five is anti-" interlocking with door, described switch cubicle rear portion is provided with safe pressure relief device.
10. a kind of novel ac metal closing switch gear according to claim 1 is characterized in that: described switch cubicle degree of protection is IP3X.
CNU2008200007354U 2008-01-21 2008-01-21 Novel AC metal closed switch installation Expired - Lifetime CN201199609Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2008200007354U CN201199609Y (en) 2008-01-21 2008-01-21 Novel AC metal closed switch installation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2008200007354U CN201199609Y (en) 2008-01-21 2008-01-21 Novel AC metal closed switch installation

Publications (1)

Publication Number Publication Date
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CNU2008200007354U Expired - Lifetime CN201199609Y (en) 2008-01-21 2008-01-21 Novel AC metal closed switch installation

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Country Link
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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101847840A (en) * 2010-06-09 2010-09-29 浙宝电气(杭州)集团有限公司 Annular net cabinet internally provided with vacuum breaker
CN102868104A (en) * 2012-09-11 2013-01-09 宁波德沃电力科技有限公司 Low-voltage distribution cabinet with pre-alarm device
CN103022926A (en) * 2012-11-30 2013-04-03 广东天富电气集团有限公司 Box type fixing type metal-enclosed switchgear
WO2013173958A1 (en) * 2012-05-21 2013-11-28 Abb Technology Ltd. Switchgear assembly
CN103457196A (en) * 2012-05-28 2013-12-18 成都振中电气有限公司 Box-type fixed alternating-current metal-enclosed switchgear
CN103500928A (en) * 2013-09-12 2014-01-08 安徽驰纬电气有限公司 High-voltage switch cabinet capable of changing position of grounding switch and position of current transformer
CN103681098A (en) * 2013-11-30 2014-03-26 国家电网公司 Circuit breaker with isolation stations and switchgear utilizing circuit breaker
CN103701060A (en) * 2013-12-31 2014-04-02 昆山振宏电子机械有限公司 Steel-clad movable-type alternating current metal closed switch cabinet
CN104466741A (en) * 2014-11-25 2015-03-25 南通鑫源电器制造有限公司 Fixed alternating current metal switch equipment
CN104934874A (en) * 2015-07-09 2015-09-23 新疆特变电工自控设备有限公司 Miniaturized composite insulation switch cabinet
CN105119181A (en) * 2015-09-23 2015-12-02 安徽意力电缆有限公司 Ring network wire-incoming cabinet
CN105186310A (en) * 2015-10-23 2015-12-23 北海银河开关设备有限公司 Mechanical interlocking device of outdoor compact intelligent transformer substation high-voltage switch cabinet
CN106972397A (en) * 2017-04-21 2017-07-21 广州霍斯通电气股份有限公司 Inflatable ac metal closing switch gear
CN109103776A (en) * 2018-10-29 2018-12-28 镇江上电电气有限公司 A kind of packet type switch cabinet

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101847840A (en) * 2010-06-09 2010-09-29 浙宝电气(杭州)集团有限公司 Annular net cabinet internally provided with vacuum breaker
WO2013173958A1 (en) * 2012-05-21 2013-11-28 Abb Technology Ltd. Switchgear assembly
CN103457196A (en) * 2012-05-28 2013-12-18 成都振中电气有限公司 Box-type fixed alternating-current metal-enclosed switchgear
CN102868104A (en) * 2012-09-11 2013-01-09 宁波德沃电力科技有限公司 Low-voltage distribution cabinet with pre-alarm device
CN102868104B (en) * 2012-09-11 2016-07-13 宁波德沃智能股份有限公司 Low-voltage distribution cabinet with pre-alarming device
CN103022926A (en) * 2012-11-30 2013-04-03 广东天富电气集团有限公司 Box type fixing type metal-enclosed switchgear
CN103500928A (en) * 2013-09-12 2014-01-08 安徽驰纬电气有限公司 High-voltage switch cabinet capable of changing position of grounding switch and position of current transformer
CN103681098B (en) * 2013-11-30 2016-07-06 国家电网公司 A kind of with isolating the chopper of station and using the switch cubicle of this chopper
CN103681098A (en) * 2013-11-30 2014-03-26 国家电网公司 Circuit breaker with isolation stations and switchgear utilizing circuit breaker
CN103701060A (en) * 2013-12-31 2014-04-02 昆山振宏电子机械有限公司 Steel-clad movable-type alternating current metal closed switch cabinet
CN104466741A (en) * 2014-11-25 2015-03-25 南通鑫源电器制造有限公司 Fixed alternating current metal switch equipment
CN104934874A (en) * 2015-07-09 2015-09-23 新疆特变电工自控设备有限公司 Miniaturized composite insulation switch cabinet
CN105119181A (en) * 2015-09-23 2015-12-02 安徽意力电缆有限公司 Ring network wire-incoming cabinet
CN105186310A (en) * 2015-10-23 2015-12-23 北海银河开关设备有限公司 Mechanical interlocking device of outdoor compact intelligent transformer substation high-voltage switch cabinet
CN106972397A (en) * 2017-04-21 2017-07-21 广州霍斯通电气股份有限公司 Inflatable ac metal closing switch gear
CN109103776A (en) * 2018-10-29 2018-12-28 镇江上电电气有限公司 A kind of packet type switch cabinet

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Granted publication date: 20090225