CN2224460Y - Pot-type sulfur hexafluoride circuit breaker - Google Patents
Pot-type sulfur hexafluoride circuit breaker Download PDFInfo
- Publication number
- CN2224460Y CN2224460Y CN 94246344 CN94246344U CN2224460Y CN 2224460 Y CN2224460 Y CN 2224460Y CN 94246344 CN94246344 CN 94246344 CN 94246344 U CN94246344 U CN 94246344U CN 2224460 Y CN2224460 Y CN 2224460Y
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- Prior art keywords
- arc
- contact
- pot
- circuit breaker
- resistance
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- Expired - Lifetime
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Abstract
The utility model relates to a pot-type sulfur hexafluoride circuit breaker, which is an outdoor triple-pole high-tension electrical device and is the control and protect electric appliance of a power system in power transmission and transformation lines. The pot-type sulfur hexafluoride circuit breaker adopts a pot-type double-fracture arc-extinguishing structure matching with a pneumatic operating mechanism. The pot-type sulfur hexafluoride circuit breaker is composed of an arc-extinguishing chamber, a gas-filled sleeve, a sleeve-type current mutual inductor coil, the pneumatic operating mechanism, etc. The design of the arc-extinguishing chamber nozzle of the utility model effectively utilizes the turbulent current when SF6 gas blows, reinforces the heat, momentum and energy exchange between cold state SF6 and a glowing arc column in an arc gap; improves arc extinguishing performance.
Description
The utility model is a kind of pot type SF6 circuit breaker, is outdoor three extra-high voltage electric equipments, is the control and the protection electrical equipment of electric power system in the power transmission and transformation line.
Present 500KV porcelain knob SF6 circuit breaker, self is the belt current instrument transformer not, needs other distribution current transformer, this product, troublesome maintenance, anti-seismic performance is low.
The utility model has designed a kind of pot type double break mouth sulfur hexafluoride breaker at above shortcoming, the purpose of this utility model designs a kind of circuit breaker exactly, and it has the good reliability height of shock resistance, the advantage that is easy to safeguard, and good blow-out performance arranged, not only can cut-off common short trouble and can successfully cut-off such as desynchronizing state, close-in fault, failure and special such as circuit breaker both sides while two phase ground.
Design of the present utility model is: adopt the pneumatic operating mechanism of a kind of pot type double break mouth arc quenching chamber structure adapted, it is by arc control device, compositions such as gas-filled bushing, sleeve type current mutual inductor coil, pneumatic operating mechanism.Electrical control, SF6 gas density control system and compressed air supply unit all place in the operating mechanism case.Turbulence effect when the utility model arc control device nozzle design has effectively utilized the SF6 air-blowing has been strengthened the exchange of heat, momentum and the energy between cold conditions SF6 and red-hot arc column in the arc gap, has improved the blow-out performance.
The circuit breaker of the utility model design has used the little shunt capacitor of capacity for the voltage distribution of even two fractures.For preventing that SF6 electric arc analyte is to the corrosion of ceramic capacitor in the switch, the producer that has is coated with the very thin insulating varnish of one deck in the capacitor outside; And the capacitor that this product uses in capacitor dielectric outside vacuum pouring the thick epoxy resin of one deck 3mm, its anti-collision, anti-corrosion capability is better than insulating varnish greatly.The utility model is contained in the outside that tank body props up tube with the bushing current transformer coil, and it is gas-insulated with SF6 that it all is on the earth potential housing, and coil is adorned rain cover outward.Because interior screen structural design uniqueness, it is reasonable, simple in structure that size cooperates, and shows that through electric Field Calculation the insulator Electric Field Distribution is more even, and electric property is reliable, and whole insulator volume is little, diameter is thin, in light weight, have attractive appearance, anufacturability is good.
The utility model is described in further detail below in conjunction with accompanying drawing:
Accompanying drawing one is pot type SF6 circuit breaker overall structure figure.
Accompanying drawing two is outlet insulator structural representation
Accompanying drawing three is an arc control device double break mouth structure schematic diagram
In the accompanying drawing 1: (1) outlet insulator (2) mechanical transmission mechanism (3) tank body (4) arc control device (5) resistance (6) operating mechanisms (7) insulated tension poles (8) are supported insulating cylinder (9) shunt capacitor (10) connecting lever (11) pneumatic mechanism (12) port lid
In the accompanying drawing 2: (13) conductive plate (14) guide post (15) contact base (16) radome (17) Mume flower contact (18) center conductor (19) current mutual inductor coil (20) supports insulation pad (21) internal shield (22) insulator (23) binding post (24) to go up shading ring
In the accompanying drawing 3; (25) moving main contact (31) quiet arc contact (32) moving arcing contact (33) electric arc (34) nozzle (35) air cylinder of the quiet main contact of spring (26) resistance cylinder (27) resistance fixed contact (28) resistance moving contact (29) (30)
The utility model mainly by the arc control device (4) and the actuating of the series connection of outlet insulator (1), bushing current transformer coil (19) two fractures make mechanism case (6) translation seal (9) connecting lever (10), air operating mechanism parts such as (11) is formed.Outlet insulator (1) is an inflatable structure, fills the SF6 gas of 0.5MPa in the porcelain spare, and its air chamber communicates with the tank body (3) of dress arc control device (4).The aluminum pipe center conductor (18) of main conductive circuit passes from porcelain spare, constitutes the primary circuit of current mutual inductor coil (19).Designed the inner shield (21) of structure uniqueness for the Electric Field Distribution of improving insulator lower flange place.Wedge angle shading ring (24) on the insulator end is furnished with of locating for shield terminal (23).Bushing current transformer coil (19) is loaded on the outside that tank body props up tube, all is on the earth potential housing, and is gas-insulated with SF6.Coil is adorned rain cover outward, and its coil secondary lead wires is on the pilot protection sleeve pipe is connected to terminal board in the mechanism case.Every phase product can be adorned 6-8 coils below insulator.
After primary current is introduced arc control device (4) from insulator (1), behind the main contact system of two cover series connection, draw to the another insulator.The arcing contact that has the copper of anti-electric arc tungsten places among air cylinder (35) and the insulation nozzle (34), and all to press its capacitance of ceramic capacitor in parallel (9) be 500PF around being furnished with fracture on each fracture of arc control device.The stationary contact of each fracture is equipped with the ceramic resistor string, when breaker closing, drops in main contact 10ms in advance, with restriction closing operation overvoltage.Resistance contact head and main contact are operated by same set of mechanical transmission mechanism (2).Whole arc control device are supported on the tube at tank body middle part by supporting insulating cylinder (8), and link to each other with pneumatic mechanism (11) by insulated tension pole (7).The electric current that switching-on resistance of the present utility model (5) flow through when connecting very little (500～1600A), the duration very short (10ms), therefore adopt simple dock contact, be welded with copper tungsten for preventing contact melting welding.The transmission mechanism function of resistance contact head should guarantee to connect about resistance contact head is prior to main contact 10ms, then by short circuit or disjunction.
During the utility model sub-switching operation, resistance moving contact (28) and moving main contact (30) and arcing contact be separating brake successively.Under spring (25) the power effect of resistance cylinder (26) assembling, resistance fixed contact (27) is got back to the separating brake position lentamente as shown in Figure 3, to guarantee the disjunction of resistance contact head elder generation.Main contact is separated into certain separating with quiet main contact (29) apart from the moving main contact (30) in back will cut-off power source transition to the sound arcing contact, and moving arcing contact (32) separates at last with quiet arc contact (31).Electric arc (33) forms between arcing contact immediately.The motion of air cylinder (35) separating brake is with the SF6 gas compression in the plenum chamber.This compressed SF6 gas stream forms air-blowing through nozzle (34), and turbulization makes electric arc (33) distortion and prolongation with the cooling of the electric arc in the nozzle during owing to the straightway fluting air-blowing of nozzle (34) throat, and finally makes it to extinguish realization separating brake process.
Claims (4)
1, a kind of potting breaker of forming by outlet insulator, mechanical transmission mechanism, tank body, arc control device, operating mechanism etc., it is characterized by: it mainly is by outlet insulator, current mutual inductor coil, mechanical transmission mechanism, tank body, arc control device, resistance, operating mechanism, insulated tension pole, support insulating cylinder, shunt capacitor, compositions such as connecting lever pneumatic mechanism, port lid.
2, according to the potting breaker described in the claim 1, its feature also is: its arc control device mainly are, form by spring, resistance cylinder, resistance fixed contact, resistance moving contact, quiet main contact, moving main contact, quiet arc contact, moving arcing contact, nozzle, air cylinder etc., it adopts moving contact and fixed contact dock structure, is welded with copper tungsten on the contact.
3; also be according to its feature of the potting breaker described in the claim 1: its outlet insulator; be inflatable structure; fill the SF6 gas of 0.5MPa in the porcelain spare; its air chamber passes from porcelain spare with the aluminum pipe center conductor of the big jar of main conductive circuit that communicates; constitute the primary circuit of current mutual inductor coil; it is shading ring on the wedge angle insulator end at shield terminal place is furnished with; the outside that bushing current transformer tinning body props up tube all is on the earth potential housing gas-insulated with SF6; coil is adorned rain cover outward, and its coil secondary lead wires is on the pilot protection pipe is connected to terminal board in the mechanism case.
4, also be according to its feature of the potting breaker described in the claim 1: its electrical equipment in parallel in the vacuum pouring of capacitor dielectric outside the thick epoxy resin of one deck 3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94246344 CN2224460Y (en) | 1994-12-28 | 1994-12-28 | Pot-type sulfur hexafluoride circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94246344 CN2224460Y (en) | 1994-12-28 | 1994-12-28 | Pot-type sulfur hexafluoride circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2224460Y true CN2224460Y (en) | 1996-04-10 |
Family
ID=33851858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94246344 Expired - Lifetime CN2224460Y (en) | 1994-12-28 | 1994-12-28 | Pot-type sulfur hexafluoride circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2224460Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008058445A1 (en) * | 2006-11-13 | 2008-05-22 | Guangshun Wang | Super high voltage interrupter for gis |
| CN100454461C (en) * | 2006-06-26 | 2009-01-21 | 王光顺 | Double-fracture combination column type superhigh voltage multiplier breaking circuit breaker |
| CN102013356A (en) * | 2010-11-30 | 2011-04-13 | 中国西电电气股份有限公司 | Arc extinguish chambers of high voltage alternating current SF6 pot-type breaker |
| CN103177899A (en) * | 2011-12-22 | 2013-06-26 | 株式会社日立制作所 | Gas circuit breaker |
| CN104143469A (en) * | 2013-11-15 | 2014-11-12 | 国家电网公司 | Breaker closing resistor tripping mechanism and breaker using same |
| CN105047489A (en) * | 2015-06-30 | 2015-11-11 | 河南平高电气股份有限公司 | Circuit breaker break transmission device and circuit breaker using same |
| CN107370063A (en) * | 2017-08-02 | 2017-11-21 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Cable extends the functional module that do not have a power failure in GIS |
| CN108878212A (en) * | 2018-08-29 | 2018-11-23 | 浙江紫光电器有限公司 | A kind of super-pressure double-fracture potting breaker |
-
1994
- 1994-12-28 CN CN 94246344 patent/CN2224460Y/en not_active Expired - Lifetime
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100454461C (en) * | 2006-06-26 | 2009-01-21 | 王光顺 | Double-fracture combination column type superhigh voltage multiplier breaking circuit breaker |
| WO2008058445A1 (en) * | 2006-11-13 | 2008-05-22 | Guangshun Wang | Super high voltage interrupter for gis |
| CN102013356A (en) * | 2010-11-30 | 2011-04-13 | 中国西电电气股份有限公司 | Arc extinguish chambers of high voltage alternating current SF6 pot-type breaker |
| CN102013356B (en) * | 2010-11-30 | 2012-12-19 | 中国西电电气股份有限公司 | Arc extinguish chambers of high voltage alternating current SF6 pot-type breaker |
| CN103177899B (en) * | 2011-12-22 | 2015-04-08 | 株式会社日立制作所 | Gas circuit breaker |
| CN103177899A (en) * | 2011-12-22 | 2013-06-26 | 株式会社日立制作所 | Gas circuit breaker |
| US8957341B2 (en) | 2011-12-22 | 2015-02-17 | Hitachi, Ltd. | Gas circuit breaker |
| WO2015070731A1 (en) * | 2013-11-15 | 2015-05-21 | 国家电网公司 | Circuit breaker closing resistor tripping mechanism, and circuit breaker using same |
| CN104143469A (en) * | 2013-11-15 | 2014-11-12 | 国家电网公司 | Breaker closing resistor tripping mechanism and breaker using same |
| CN105047489A (en) * | 2015-06-30 | 2015-11-11 | 河南平高电气股份有限公司 | Circuit breaker break transmission device and circuit breaker using same |
| CN105047489B (en) * | 2015-06-30 | 2017-06-09 | 河南平高电气股份有限公司 | Breaker fracture transmission device and the breaker using the fracture transmission device |
| CN107370063A (en) * | 2017-08-02 | 2017-11-21 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Cable extends the functional module that do not have a power failure in GIS |
| WO2019024273A1 (en) * | 2017-08-02 | 2019-02-07 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Functional module for constantly supplying power during cable expansion in gis |
| CN107370063B (en) * | 2017-08-02 | 2019-11-12 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Cable extends the functional module that do not have a power failure in GIS |
| CN108878212A (en) * | 2018-08-29 | 2018-11-23 | 浙江紫光电器有限公司 | A kind of super-pressure double-fracture potting breaker |
| CN108878212B (en) * | 2018-08-29 | 2024-03-15 | 浙江紫光电器有限公司 | Tank-type breaker with ultrahigh voltage and double fracture |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: XI AN XIKAI HIGH VOLTAGE ELECTRIC CO., LTD. Free format text: FORMER NAME OR ADDRESS: XI AN HIGH-TENSION SWITCH FACTORY |
|
| CP03 | Change of name, title or address |
Address after: 710068 Xi'an City High Road No. 33 Patentee after: Xi'an Xikai High-Voltage Electric Co., Ltd. Address before: 710077 No. 29, Daqing Road, Xi'an Patentee before: Xi-an High-Voltage Factory |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |