CN201674152U - SF6 fully-closed all-insulating load switch and fuse combined switch cabinet - Google Patents
SF6 fully-closed all-insulating load switch and fuse combined switch cabinet Download PDFInfo
- Publication number
- CN201674152U CN201674152U CN201020171883XU CN201020171883U CN201674152U CN 201674152 U CN201674152 U CN 201674152U CN 201020171883X U CN201020171883X U CN 201020171883XU CN 201020171883 U CN201020171883 U CN 201020171883U CN 201674152 U CN201674152 U CN 201674152U
- Authority
- CN
- China
- Prior art keywords
- fuse
- casing
- load switch
- insulation
- enclosed
- 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
Links
Images
Landscapes
- Patch Boards (AREA)
Abstract
The utility model discloses an SF6 fully-closed all-insulating load switch and fuse combined switch cabinet comprising a box body used for installing a load switch, and chassis arranged at one side and the lower part of the box body. The SF6 fully-closed all-insulating load switch and fuse combined switch cabinet is characterized in that the box body is a sealed box body and internally filled with SF6 gas; and the static terminal of the load switch is connected with the fuse through a conducting copper bar. In the utility model, all high-voltage electrified components in the cabinet are sealed in a stainless air chamber filled with the SF6 gas, the on-off performance is good, and the reliability is high, electric arc is not exposed when the combined switched is switched-on and switched-off, and electrical components inside the cabinet can not be polluted or damaged.
Description
Technical field
The utility model relates to a kind of loading switch cabinet, belongs to electric power system high-tension distribution equipment technical field.
Background technology
China's traditional secondary controller switching equipment is to use circuit breaker, and not only price is expensive, and protectiveness is also bad.After the reform and opening-up, from the Delta of the Pearl River, the secondary power distribution equipment based on on-load switch and fuse of introduction is rooted in the hearts of the people day by day.China's medium voltage breaker and on-load switch (containing contactor) ratio is by 10: 1 before 1180, reduce to 2.1: 1 in 2003, but with abroad compare, China's circuit breaker greatly differs from each other with the ratio of on-load switch, abroad (as Germany, Japan etc.) circuit breaker is 1: 5～6 with the ratio of on-load switch, and China does not now reach 1: 1, reach 1: 5～6 also will pay great efforts.
High voltage load switch cabinet main element is the on-load switch that is installed in the casing, and most of using gases insulation and emerging solid insulation adopt general spring operating mechanism or electric operating mechanism.Air-insulated switch cubicle, the cabinet size is bigger, and electrified body is exposed, is subjected to the erosion of air, dust, and insulation distance requires high, and the life-span is short.With the loading switch cabinet of solid as dielectric, solid insulation is poured into a mould the whole epoxy resin that adopts of array switch and relevant live part exactly, though this power supply unit does not have the discharging of any noxious substance, but because poured with epoxy resin is adopted in all coupling parts of switch inside portion, element replacement and maintenance are inconvenient, and scheme is fixed difficult expansion, cost is higher, promotes on a large scale to have difficulty.
The utility model content
Technical problem to be solved in the utility model is at existing technology and present situation, provides a kind of and can satisfy city net distribution requirement, and compact conformation, stable performance, gas-insulating type loading switch cabinet that cost is low.
The gas-insulating type loading switch cabinet that another technical problem to be solved in the utility model provides a kind of energy flexible expansion, the life-span is long and maintain easily.
For solving the problems of the technologies described above, the utility model provides totally-enclosed all insulation on-load switch of a kind of SF6 and fuse switchboard assembly, comprise the casing that is used to install on-load switch, be arranged at the underframe of casing one side and bottom, it is characterized in that: described casing is a seal case, fill SF6 gas in the described casing, the static terminal of described on-load switch links to each other with fuse by the conduction copper rod.
Totally-enclosed all insulation on-load switch of aforesaid SF6 and fuse switchboard assembly is characterized in that: in the seal case bottom explosion-proof diaphragm is housed.
Totally-enclosed all insulation on-load switch of aforesaid SF6 and fuse switchboard assembly, it is characterized in that: the expansion bus is arranged at the top of casing, described expansion bus links to each other with major loop moving contact in being arranged at casing, operating mechanism is arranged at the outer side of casing, the main shaft of operating mechanism stretches in the described casing, main shaft links to each other with the major loop moving contact by the first main shaft connecting lever, main shaft links to each other with the grounded circuit moving contact by the second main shaft connecting lever, static terminal is arranged at the middle and upper part in the casing, described static terminal is connected with current limiting fuse by the conduction copper rod, and described current limiting fuse is connected with the outlet sleeve pipe by the conduction copper rod.
Totally-enclosed all insulation on-load switch of aforesaid SF6 and fuse switchboard assembly is characterized in that: the position parallel with static terminal is provided with an observation window on a sidewall of described casing.
Totally-enclosed all insulation on-load switch of aforesaid SF6 and fuse switchboard assembly, it is characterized in that: described underframe comprises control room, cable vault and pressure release passage, is provided with operating mechanism and secondary circuit in the described control room; Be provided with cable and fixed mount thereof, ground connection busbar in the described cable vault; Described pressure release passage is arranged at the bottom of the explosion-proof diaphragm of casing.
Totally-enclosed all insulation on-load switch of aforesaid SF6 and fuse switchboard assembly is characterized in that: described underframe is assembled with tapping screw by aluminizing zinc steel plate.
Totally-enclosed all insulation on-load switch of aforesaid SF6 and fuse switchboard assembly is characterized in that: the absolute pressure of SF6 gas is 0.13MPa in the described casing.
Totally-enclosed all insulation on-load switch of aforesaid SF6 and fuse switchboard assembly is characterized in that: separable connector is installed in going out on the entrance bushing of cabinet top, and described separable connector is connected with the expansion bus, and in the junction closure member is set.
The beneficial effect that the utility model reached is:
1. totally-enclosed all insulation on-load switch of SF6 of the present utility model and fuse switchboard assembly, it is indoor that interior all the electrification in high voltage assemblies of cabinet all are enclosed in the stainless steel gas that is full of SF6 gas, break performance is good, reliability is high, electric arc does not expose in cut-offfing, and can not pollute and damage the electric elements in the cabinet.
2. casing is equipped with the large scale observation window, high-visible fracture, strong assurance life safety.
3. the assembling of casing and base is independent module, can combination in any expand, and has unified assembling interface, makes things convenient for the upgrading expansion between composite module, is convenient to tissue production, the deadline of having improved contract option.
Therefore the utility model is rational in infrastructure, is that a kind of volume is little, simple in structure, stable performance, the switch cubicle that the life-span is long.
Description of drawings
Fig. 1 is that totally-enclosed all insulation on-load switch of SF6 of the present utility model and fuse switchboard assembly remove front view behind the door;
Fig. 2 is totally-enclosed all insulation on-load switch of SF6 of the present utility model and fuse switchboard assembly overall structure schematic diagram;
Fig. 3 is the rearview of totally-enclosed all insulation on-load switch of the utility model SF6 and fuse switchboard assembly casing;
Fig. 4 is the end view of totally-enclosed all insulation on-load switch of the utility model SF6 and fuse switchboard assembly casing.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.
The utility model comprises seal case 1, on-load switch part, underframe 9 and expansion bus 6.
Seal case: full welded seal technology is welded casing 1 for the 2.5mm corrosion resistant plate adopts, the degree of protection I P67 of housing, and the seal of assurance casing, and through leak detection.Do not need to inflate again and can keep safety operation at the whole service life period.In switch, bus are housed and fill gas with SF6, absolute pressure 0.13MPa is applicable to that height above sea level is lower than 1000 meters middle pressure transformer station.SF
6Gas is colourless, tasteless, nontoxic, non-flammability, also not combustion-supporting nonmetallic compound, and chemical property is highly stable, thermal stability is fabulous, and at normal temperatures and pressures, its density is five times of air.It has very high electrical insulative property and arc extinguishing ability.Removing has cut-offfing and combined floodgate, ground connection indication of switch on the panel, casing also is equipped with the large scale observation window, high-visible fracture, strong assurance personal safety.
As shown in Figure 2, described casing 1 has the stainless steel bending plate more than three or three substantially: described casing 1 anterior welding header board, and described body case 1 welded top top board, the plate assembling of welding back, described body case 1 back is welded.Therefore increase its structural strength, reduce its welding deformation, and after atmospheric SF6 gas such as pouring, almost not distortion of casing, this has just been avoided the influence of cabinet distortion to inner high voltage device.
Position parallel with static terminal 11 on a sidewall of described casing 1 is provided with an observation window 10.
On-load switch: being installed in the on-load switch that fills in the casing body is two station on-load switches, and main switch combined floodgate, separating brake and earthed switch combined floodgate, four positions of separating brake are arranged.Expansion bus 6 is arranged at the top of casing 1, described expansion bus 6 links to each other with major loop moving contact in being arranged at casing 1, operating mechanism 2 is arranged at the side outside the casing 1, the main shaft of operating mechanism 2 stretches in the described casing 1, main shaft links to each other with major loop moving contact 8 by the first main shaft connecting lever 7, main shaft is by the second main shaft connecting lever 7 ' link to each other with the grounded circuit moving contact, static terminal 11 is arranged at the middle and upper part in the casing, described static terminal 11 links to each other with fuse 14 by conduction copper rod 13, and fuse 14 is connected with outlet sleeve pipe 12 by the conduction copper rod.When major loop moving contact 8 is positioned at the separating brake position, enough insulation distances are arranged.Can close the branch operation to main switch and earthed switch respectively with an operating grip, the duplex mechanical interlocking protection is arranged between main switch and the earthed switch.Also be provided with Pressure gauge 3 on the top of casing 1 and be used for the inspection box internal pressure.In the combined electrical apparatus loop of on-load switch+current limiting fuse, the fuse earthed switch that links with on-load switch is housed, provide reliable ground to the fuse leading-out terminal; Substantially be failure to actuate when on-load switch this fuse earthed switch in combined floodgate, sub-switching operation, when on-load switch ground connection was operated, this fuse earthed switch moved simultaneously and reliably contacts with the static contact seat of fuse leading-out terminal, to guarantee fuse outlet side reliable ground.On-load switch+fuse constitutes the tranformer protection loop simultaneously, and fuse is loaded in the insulation shell of epoxy casting.After the fuse blows, the striker of ejection makes the on-load switch separating brake when being short-circuited, and makes faulty line obtain excision.The fuse striker is selected medium-sized spring striker for use.
Underframe: underframe (removing seal case housing parts in addition) is the matrix of all parts assemblings, simultaneously seal case is risen and support and fixation, select for use the aluminizing zine plate to adopt multiple bending and forming, be connected with the staking nut by high-strength bolt, nut (8.8 grades).The described underframe 4 of tank bracket comprises control room 41, cable vault 42 and pressure release passage 43, is provided with operating mechanism 2 and secondary circuit in the described control room; Be provided with cable and fixed mount thereof, ground connection busbar in the described cable vault 42; Described pressure release passage 43 is arranged at the bottom of the explosion-proof diaphragm of casing 1.The door of Pressure gauge, dynamic main electrical scheme simulation drawing, electrification display, handle hole and action button, nameplate, mechanism chamber, the door of cable vault etc. all are positioned at the front.In the seal case bottom explosion-proof diaphragm 20 is housed, when the internal arc fault, gas is discharged from pressure release passage 43 by explosion-proof diaphragm, can effectively prevent the infringement to rest switch equipment in people, cable and the transformer station.
Described underframe 9 is Knockdown blocks, and is assembled with staking nut and screw by aluminizing zinc steel plate, installs simple and conveniently, has very high mechanism's intensity, and good rustless property is arranged.Can assemble with described casing 1 independent assortment.Left plate bottom right side plate splices with riveting nut under upper left side plate and the last right plate, forms standalone module, and top board upper spacer median septum and rear bulkhead are housed, and the panel and the Xiamen 5 of surface plastic spraying also installed in described base 4 front portions.Described side plate and dividing plate, top board all have counterbore, and install with the staking nut, and be elegant in appearance, makes when piecing together the cabinet installation very close to each other between each module.Noseplate, back base plate are equipped with in described base 4 bottoms, have grid on the header board, make things convenient for the cable turnover, the superjacent air space of described noseplate is equipped with the cable fixed mount, can slide front and back, when cable is installed, very big nargin is arranged, conveniently the connection and the dismounting of indoor, outdoor various cables.
The expansion bus: being electrically connected between cabinet is to be connected with the expansion bus by separable connector, and separable connector is installed in going out on the entrance bushing of cabinet top, for bus provides continuity, and the sealing junction.Use this connector can make convenient and simple the linking together and need not change the SF6 casing of the bus of different switch cubicles, this connector high universalizable, interchangeability, not only can prevent partial discharge and guarantee insulation characterisitic, can also tolerate the specified and short circuit current that switch cubicle may have.Switch cubicle can be realized various main electrical schemes by the disparate modules combination, realizes miniaturization, and modularization is a spotlight of the present utility model.
Below disclose the utility model with preferred embodiment, so it is not in order to restriction the utility model, and all employings are equal to replaces or technical scheme that the equivalent transformation mode is obtained, all drops within the protection range of the present utility model.
Claims (8)
1. totally-enclosed all insulation on-load switch of SF6 and fuse switchboard assembly, comprise the casing (1) that is used to install on-load switch and current limiting fuse (14), be arranged at the underframe (4) of casing (1) one side and bottom, it is characterized in that: described casing (1) is a seal case, fill SF6 gas in the described casing, the static terminal of described on-load switch (11) links to each other with fuse (14) by conduction copper rod (13).
2. totally-enclosed all insulation on-load switch of SF6 according to claim 1 and fuse switchboard assembly is characterized in that: in seal case (1) bottom explosion-proof diaphragm is housed.
3. according to claim 1 or 2 totally-enclosed all insulation on-load switches of aforesaid SF6 and fuse switchboard assembly, it is characterized in that: expansion bus (6) is arranged at the top of casing (1), described expansion bus (6) the major loop moving contact interior with being arranged at casing (1) links to each other, operating mechanism (2) is arranged at the outer side of casing (1), the main shaft of operating mechanism (2) stretches in the described casing (1), main shaft links to each other with major loop moving contact (8) by the first main shaft connecting lever (7), main shaft links to each other with the grounded circuit moving contact by the second main shaft connecting lever (7 '), static terminal (11) is arranged at the middle and upper part in the casing, and described current limiting fuse (14) is connected with outlet sleeve pipe (12) by the conduction copper rod.
4. totally-enclosed all insulation on-load switch of SF6 according to claim 1 and fuse switchboard assembly is characterized in that: position parallel with static terminal (11) on a sidewall of described casing (1) is provided with an observation window (10).
5. totally-enclosed all insulation on-load switch of SF6 according to claim 1 and fuse switchboard assembly, it is characterized in that: described underframe (4) comprises control room (41), cable vault (42) and pressure release passage (43), is provided with operating mechanism (2) and secondary circuit in the described control room; Be provided with cable and fixed mount thereof, ground connection busbar in the described cable vault (42); Described pressure release passage (43) is arranged at the bottom of the explosion-proof diaphragm of casing (1).
6. totally-enclosed all insulation on-load switch of SF6 and fuse switchboard assembly according to claim 1 or 5, it is characterized in that: described underframe (4) is assembled with tapping screw by aluminizing zinc steel plate.
7. according to totally-enclosed all insulation on-load switch of claim 1 an aforesaid SF6 and fuse switchboard assembly, it is characterized in that: the absolute pressure of the interior SF6 gas of described casing (1) is 0.13MPa.
8. according to claim 1 or totally-enclosed all insulation on-load switch of 3 described SF6 and fuse switchboard assembly, it is characterized in that: separable connector is installed in going out on the entrance bushing of cabinet top, described separable connector is connected with the expansion bus, and in the junction closure member is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020171883XU CN201674152U (en) | 2010-04-26 | 2010-04-26 | SF6 fully-closed all-insulating load switch and fuse combined switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020171883XU CN201674152U (en) | 2010-04-26 | 2010-04-26 | SF6 fully-closed all-insulating load switch and fuse combined switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201674152U true CN201674152U (en) | 2010-12-15 |
Family
ID=43331560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020171883XU Expired - Fee Related CN201674152U (en) | 2010-04-26 | 2010-04-26 | SF6 fully-closed all-insulating load switch and fuse combined switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201674152U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102891448A (en) * | 2012-11-07 | 2013-01-23 | 北京科锐配电自动化股份有限公司 | Gas insulation indoor switch cabinet |
| CN105846339A (en) * | 2016-06-15 | 2016-08-10 | 北京科锐博实电气设备有限公司 | Vehicle-mounted switch device of high-speed train |
| CN105932589A (en) * | 2016-06-27 | 2016-09-07 | 南通阿斯通电器制造有限公司 | Novel environment-friendly inflatable ring network cabinet |
-
2010
- 2010-04-26 CN CN201020171883XU patent/CN201674152U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102891448A (en) * | 2012-11-07 | 2013-01-23 | 北京科锐配电自动化股份有限公司 | Gas insulation indoor switch cabinet |
| CN105846339A (en) * | 2016-06-15 | 2016-08-10 | 北京科锐博实电气设备有限公司 | Vehicle-mounted switch device of high-speed train |
| CN105932589A (en) * | 2016-06-27 | 2016-09-07 | 南通阿斯通电器制造有限公司 | Novel environment-friendly inflatable ring network cabinet |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2836279Y (en) | 12KV indoor AC high-voltage sulfur hexafluoride ring network switchgear | |
| CN201113291Y (en) | Outdoor common box type sulfur hexafluoride multi-loop ring net cabinet | |
| US9472356B2 (en) | Tank-type vacuum circuit breaker | |
| CN201639185U (en) | Medium-voltage full-insulated touchable ring main unit | |
| CN115792310B (en) | On-site experiment device and method for switching all-in-one machine | |
| CN101483322A (en) | Armored withdraw type metal enclosed switch cabinet | |
| CN104377585A (en) | Modular intelligent box type fixed inflatable high-voltage AC metal enclosure switching equipment | |
| CN201674152U (en) | SF6 fully-closed all-insulating load switch and fuse combined switch cabinet | |
| CN201904565U (en) | SF6 fully-enclosed fully-insulated load switch cabinet | |
| CN202050184U (en) | Inflating type high-voltage modularized vacuum circuit breaker cabinet | |
| CN201541081U (en) | Monopole railway cabinet type gas insulated switch device | |
| CN204216476U (en) | A kind of modularization intelligent box fixes gas-filled type high-voltage alternating metal enclosed switchgear | |
| KR101315437B1 (en) | Gas insulated switchgear | |
| CN201263052Y (en) | Miniaturisation SF6 insulation vacuum load switch cabinet | |
| CN219086659U (en) | Gas-insulated switchgear | |
| CN202888712U (en) | Intelligent load switch cabinet | |
| CN2574270Y (en) | Sulfur hexafluoride gas insulation metal sealed switchgear | |
| CN201623393U (en) | Removable arc and resonance suppression device | |
| CN102420400A (en) | Insulating cover | |
| CN203787840U (en) | Inflatable combined electric appliance cabinet | |
| CN201674138U (en) | Box type fixed high-tension ring network switchgear | |
| CN200987048Y (en) | Air-inflating cabinet using sulfur hexafluoride gas insulation | |
| CN2919626Y (en) | Digital three-phase integrated air inflation chamber separating module | |
| CN217882570U (en) | Inflatable cabinet structure | |
| CN216625098U (en) | Environment-friendly gas-insulated intelligent boundary inflatable switch cabinet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: JIANGSU YUCHENG YEJI ELECTRIC EQUIPMENT CO., LTD. Free format text: FORMER OWNER: NANJING YEJI ELECTRIC DEVICE CO., LTD. Effective date: 20141030 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20141030 Address after: Airport hub Economic Zone bell Jiangning Development Zone in Nanjing City, Jiangsu province 211151 crafts Road No. 4 Patentee after: Jiangsu Yucheng industry base electrical equipment Co., Ltd. Address before: Jiangning Economic Development Zone, Nanjing City, Jiangsu province 211151 Metro Airport Industrial Park Avenue South City Industrial Park Patentee before: Nanjing Yeji Electric Device Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101215 Termination date: 20160426 |