CN2548249Y - Indoor high-voltage vacuum circuit breaker - Google Patents
Indoor high-voltage vacuum circuit breaker Download PDFInfo
- Publication number
- CN2548249Y CN2548249Y CN 02220787 CN02220787U CN2548249Y CN 2548249 Y CN2548249 Y CN 2548249Y CN 02220787 CN02220787 CN 02220787 CN 02220787 U CN02220787 U CN 02220787U CN 2548249 Y CN2548249 Y CN 2548249Y
- Authority
- CN
- China
- Prior art keywords
- circuit breaker
- indoor high
- vacuum circuit
- voltage vacuum
- lever
- 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
Links
- 230000007246 mechanism Effects 0.000 claims abstract description 65
- 238000004146 energy storage Methods 0.000 claims description 26
- 230000009467 reduction Effects 0.000 claims description 17
- 230000008878 coupling Effects 0.000 claims description 9
- 238000010168 coupling process Methods 0.000 claims description 9
- 238000005859 coupling reaction Methods 0.000 claims description 9
- 239000004411 aluminium Substances 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 7
- 239000012212 insulator Substances 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000008029 eradication Effects 0.000 claims description 2
- 238000009826 distribution Methods 0.000 abstract description 4
- 238000004880 explosion Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 238000010891 electric arc Methods 0.000 description 3
- 239000003822 epoxy resin Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 208000032767 Device breakage Diseases 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- GXDVEXJTVGRLNW-UHFFFAOYSA-N [Cr].[Cu] Chemical compound [Cr].[Cu] GXDVEXJTVGRLNW-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000010125 resin casting Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The utility model discloses an indoor high-voltage vacuum circuit breaker has the mechanism case, and the mechanism case is equipped with supporting mechanism, characterized by: the supporting mechanism supports three vacuum arc-extinguishing chambers, a flexible connection is also arranged between the vacuum arc-extinguishing chambers and the supporting mechanism, an operating mechanism is arranged between the supporting mechanism and the mechanism box, the operating mechanism and the vacuum arc-extinguishing chambers are arranged in a front-back mode, and the vacuum arc-extinguishing chambers are longitudinally arranged in a tubular insulating cylinder. The beneficial effects are as follows: the structure is simple, the on-off short-circuit current is large, the insulating strength is high, the cut value is small, the contact burning loss is small, the contact resistance is small, the vacuum sealing is good, the reliability is high, the service life is long, the explosion danger is avoided, and the device is suitable for controlling or protecting the power distribution systems of power plants, power substations and the like, and is particularly suitable for occasions of switching on and off important loads and frequent operation.
Description
Technical field:
The utility model relates to generating and for, power transformation technology, is a kind of control of distribution systems such as power plant, electric substation or primary cut-out of protection of being used for, and specifically, is a kind of indoor high-voltage vacuum circuit breaker.
Background technology:
Indoor high-voltage vacuum circuit breaker is the equipment that uses in the control of distribution systems such as power plant, electric substation or the protection; the breaking-closing operating of common indoor high-voltage vacuum circuit breaker and combined floodgate energy storage are to rely on common spring operating mechanism to finish; and the operating power of existing spring operating mechanism is directly to take from circuit breaker self by dedicated potential transformer or transformer etc. to cut-off preceding high-voltage fence; in case high-voltage fence has a power failure, circuit breaker can only rely on dependent manual operation.The danger of operation is big, and the volume of whole device is big, installation is complicated, cost is high, fragile, useful life is short, performance is unreliable, even also has explosion hazard.
Summary of the invention:
The purpose of this utility model provide a kind of simple in structure, cut-off that short circuit current is big, dielectric strength is high, cut that value is little, contact burning is little, contact resistance is little, vacuum seal is good, reliability is high, the life-span is long, the indoor high-voltage vacuum circuit breaker of no explosion hazard.
Technical solution of the present utility model is: a kind of indoor high-voltage vacuum circuit breaker, mechanism case is arranged, mechanism case is equipped with supporting mechanism, it is characterized in that: supporting mechanism is supported with three vacuum interrupters, between vacuum interrupter and supporting mechanism, also be equipped with and be flexible coupling, between supporting mechanism and mechanism case, operating mechanism is housed, the form of arranging before and after operating mechanism and vacuum interrupter adopt, vacuum interrupter vertically is installed in the insulating cylinder of a tubulose.
Supporting mechanism described in the utility model comprises the insulator that is fixed on the mechanism case, and the upper and lower leading-out terminal of cast aluminium is fixed on the insulator, is equipped with on the lower wire end to be flexible coupling, and is flexible coupling to link to each other with conductive clip on the vacuum interrupter moving conductive rod.The universal bar end bearing is equipped with in bottom at the moving conductive rod of vacuum interrupter, and this rod end bearing links to each other with lever on the lower wire end by a pivot pin, and switch spindle passes to power by three eradication edge pull bars and makes that switch closes, the moving guide rod of separating brake.
Operating mechanism described in the utility model adopts integral spring stored energy operating mechanism or bistable state permanent magnet operating mechanism.One stored energy mechanism is arranged in the operating mechanism, and stored energy mechanism connects switch spindle through transmission mechanism, and switch spindle is connected with buffer and locking mechanism, and energy storage device also is connected with control device.The stored energy mechanism main body is a reduction box that shell is a cast aluminium, is two cover worm and gears in the reduction box, and the energy storage axle crosses in the reduction box, cover one bearing on the energy storage axle, and this axle sleeve is connected on the big worm gear with key, and a pivot pin is arranged on the axle sleeve, adorns a ratchet above; Right-hand member at the energy storage axle has a cam, and is jagged on the cam, and ratchet drives cam rotation by this breach, at the left end of energy storage axle one crank is housed, and switching-in spring one end hangs on this crank.A leg-of-mutton lever is housed on the pivot pin of reduction box, one needle bearing is housed on the lever, the cam that is connected with switching-in spring is connected with this bearing, another hole of triangle lever, connect a connecting rod with pivot pin, the other end of this connecting rod is contained on the main shaft connecting lever, forms quadric chain, also is equipped with one on the pivot pin of reduction box as pinning the needle bearing that the combined floodgate pallet is used.On the connecting lever of switch spindle tripping spring is housed, also has three pairs of connecting levers on the main shaft, wherein two pairs are connected on combined floodgate rubber skin buffer and the separating brake oil bumper, and another is to adorning one as pinning the needle bearing that the separating brake pallet is used on the connecting lever.Close, tripping spring connect close, tripping electromagnet, the helix tube type DC electromagnet that close, tripping electromagnet is size, data are identical.
The beneficial effects of the utility model are: simple in structure, to cut-off the short circuit current ability big, in the longitudinal field contact of selecting for use, reliably cut-offfing short circuit current can be up to 80KA, and discoid contact surface is accepted evenly.The dielectric strength height, under stable state, vacuum level of vacuum arc-quenching chamber is lower than 10
9Bar, the clearance between open contacts of 6-20mm is enough to guarantee the dielectric strength of vacuum interrupter.Shut off value is little, can make the following contact burning of shut off value average out to 4A little by optimizing copper chromium material, and the life-span is long, and low (only 20～200V), arc energy is low, and the arcing time lacks, so the vacuum arc-extinguishing chamber contact scaling loss is little, the life-span is long for arc voltage in the interrupting process.Contact resistance is little, uses the good contact material of electric conductivity, guarantees the contact resistance minimum, and the contact resistance value between two conducting rods of vacuum interrupter is at 8～15 μ Ω, so temperature rise is also lower.Vacuum seal is good, adopts one-step seal-exhaust technology, and reliable welding quality and joint can not wear out.Reliability height, long, no explosion hazard of life-span are applicable to the control or the protection of distribution systems such as power plant, electric substation, are particularly useful for folding capacitor group and cut-off important load and the occasion of frequent operation.
Description of drawings:
Below in conjunction with drawings and Examples the utility model is further described:
Fig. 1 is the structural representation of a kind of indoor high-voltage vacuum circuit breaker of the present utility model;
Fig. 2 is the structural representation of the energy storage type release in the indoor high-voltage vacuum circuit breaker of the present utility model.
Among the figure: 1, insulator, 2, go up leading-out terminal, 3, lower wire end, 4, be flexible coupling, 5, conductive clip, 6, the universal bar end bearing, 7, pivot pin, 8, lever, 9, main shaft, 10, insulated tension pole, 11, mechanism case, 12, vacuum interrupter, 13, touch spring.14, pallet, 15, impact bar, 16, energy-stored spring, 17, junction block, 18, iron core.
Embodiment:
Fig. 1 has described an embodiment of the present utility model.In this embodiment, circuit breaker mainly is made up of vacuum interrupter 12, operating mechanism and support section.On the mechanism case 11 that is welded with steel plate, fix six epoxy resin casting insulation 1.Three arc control device are fixed on the insulator by the upper and lower leading-out terminal 2,3 of cast aluminium.Be equipped with on the lower wire end and be flexible coupling 4, being flexible coupling 4 links to each other with conductive clip 5 on the vacuum interrupter moving conductive rod.In the bottom of moving conductive rod universal bar end bearing 6 is housed, this rod end bearing links to each other with lever 8 on the lower wire end by a pivot pin 7, and switch spindle 9 is thoroughly done away with edge pull bars 10 Baals by three and passed to and move guide rod and make that switch closes, separating brake.
Arc quenching principle:
The utility model adopts vacuum interrupter, and as arc extinguishing and dielectric, vacuum interrupter has high vacuum degree with vacuum, and the dielectric strength of vacuum is more much higher than the dielectric strength of atmosphere.When dynamic and static contact under the operating mechanism effect during charged separating brake, produce electric current between contact, between contact, will produce vacuum arc, contact surface at high temperature volatilizes metallic vapour, simultaneously because the special construction of contact, also can produce suitable vertical magnetic field in the contact gap, electric arc is at the effect lower edge of this magnetic field force contact surface tangential direction rapid movement.The part metals of on metallic cylinder, condensing steam.Impel vacuum arc to remain diffused, and make electric arc be evenly distributed on the contact surface burning, safeguard low arc voltage, when the electric current natural zero-crossing, residual ion, electronics and metallic vapour just can be compound in the time of the microsecond order of magnitude or be condensed upon on contact surface and the radome, the medium dielectric strength of arc control device fracture is resumed very soon, thereby electric arc is extinguished, reach the purpose of disjunction, because this vacuum circuit breaker adopts vertical magnetic field control vacuum arc, thereby has the ability of strong and stable drop-out current.
Operating mechanism:
Operating mechanism mainly is made up of stored energy mechanism, locking mechanism, tripping spring, switch spindle, buffer and control device.
The stored energy mechanism main body is a reduction box that shell is a cast aluminium.In the reduction box two cover worm and gears.The energy storage axle crosses in the reduction box, does not have machinery with worm and gear and gets in touch.Cover one bearing on the energy storage axle, this axle sleeve is connected on the big worm gear with key, and a pivot pin is arranged on the axle sleeve, adorns a ratchet above; Right-hand member at the energy storage axle has a cam, and is jagged on the cam, and ratchet drives cam rotation by this breach.Left end at the energy storage axle is equipped with a crank, and switching-in spring one end hangs on this crank.
A leg-of-mutton lever is housed on the pivot pin of reduction box, a needle bearing is housed on the lever, cam is passed to the energy of switching-in spring on this bearing.Another hole of triangle lever connects a connecting rod with pivot pin, and the other end of this connecting rod is contained on the main shaft connecting lever, forms quadric chain, and switching force passes to switch spindle by this mechanism.A needle bearing is equipped with in the pivot pin Shanghai of reduction box, uses as pinning the combined floodgate pallet.
On the connecting lever of switch spindle, tripping spring is housed.Also have three pairs of connecting levers on the main shaft, wherein two pairs act on respectively on combined floodgate rubber skin buffer and the separating brake oil bumper, and another is used as pinning the separating brake pallet adorning a needle bearing on the connecting lever.The closing of this product, separating brake pallet are identical.
Close, tripping electromagnet is size, the identical helix tube type DC electromagnet of data.
Fig. 2 has described the energy storage type overcurrent release that can be used as operating mechanism of the present utility model.This release has an energy-stored spring 16 as stored energy mechanism, and when switch closed a floodgate, the energy-stored spring 16 in the release cast aluminium shell was by Chu Shangneng, and pallet is equipped with pinning.During the switch separating brake, coil is charged, the electromagnet action, and pallet 14 is freed, and release impact bar 15 ejects under spring 16 power effects, and the combined floodgate pallet of beater mechanism closes a floodgate switch.
Operation:
1, electric energy-stored: as to connect motor power, axle sleeve is by the big worm gear drives in the reduction box, when party's ratchet enters breach on the cam, driving the energy storage axle rotates, switching-in spring is moved peak reserve combined floodgate pallet fully to and is pinned, and the small rod transmission one little bent plate on the crank is depressed sensitive switch, and motor power is equipped with cut-out, " energy storage indication " is presented in the panel hole, and whole energy storage time is about 15 seconds.
2, manually energy storage: hand crank is inserted before the reduction box in the square hole, and about 25 circles of rocking-turn clockwise, ratchet have entered cam notch and have driven the energy storage axle and rotate, and continue firmly rocking-turn handgrip 25 circles, and the switching-in spring energy storage finishes, and unloads handgrip.
3, close a floodgate: connect the making electromagnet power supply or push switch knob (redness) with hand, the combined floodgate pallet is freed fully, the energy storage axle is backward rotation under the effect of switching-in spring power, cam is pressed on the needle bearing on the culdy, connecting rod on the lever is passed to switch spindle with power, conducting rod moves upward, and main shaft rotates about 60 and pinned by the separating brake pallet when spending, and switch closes a floodgate and finishes.In this process, tripping spring is equipped with Chu Shangneng, and the touch spring that has on the connecting rod also is compressed, and has applied a pressure to contact, and " indication of closing a floodgate " is presented in the panel hole.
4, separating brake: free the tripping electromagnet power supply or push opening button (black) with hand, the separating brake pallet is freed, main shaft reverse rotation under the effect of tripping spring and touch spring power, switch separating brake.The separating brake indicated number is in panel hole.
Circuit breaker is behind separating brake, and motor is given tripping spring energy storage, also available manually energy storage once more immediately.
Vacuum circuit-breaker can be divided into two kinds of fixed and handcart-types, general structure adopts the form of arranging before and after operating mechanism and the arc control device, main conductive circuit partly is a three-phase console mode structure, vacuum interrupter vertically is installed in the insulating cylinder of a tubulose, and insulating cylinder adopts the casting of APG technology to form by epoxy resin.Thereby especially can be creepage, reduced dust widely and built up on the arc control device surface, can prevent that not only vacuum interrupter is subjected to the influence of external factor, even and can guarantee under damp and hot and pollution severity environment, also can present high-impedance state to voltage effects.
Claims (9)
1, a kind of indoor high-voltage vacuum circuit breaker, mechanism case is arranged, mechanism case is equipped with supporting mechanism, it is characterized in that: supporting mechanism is supported with three vacuum interrupters, between vacuum interrupter and supporting mechanism, also be equipped with and be flexible coupling, between supporting mechanism and mechanism case, operating mechanism is housed, the form of arranging before and after operating mechanism and vacuum interrupter adopt, vacuum interrupter vertically is installed in the insulating cylinder of a tubulose.
2, indoor high-voltage vacuum circuit breaker according to claim 1, it is characterized in that: supporting mechanism comprises the insulator that is fixed on the mechanism case, the upper and lower leading-out terminal of cast aluminium is fixed on the insulator, be equipped with on the lower wire end and be flexible coupling, being flexible coupling links to each other with conductive clip on the vacuum interrupter moving conductive rod.
3, indoor high-voltage vacuum circuit breaker according to claim 2, it is characterized in that: the universal bar end bearing is equipped with in the bottom at the moving conductive rod of vacuum interrupter, this rod end bearing links to each other with lever on the lower wire end by a pivot pin, and switch spindle passes to power by three eradication edge pull bars and makes that switch closes, the moving guide rod of separating brake.
4, according to claim 1 or 2,3 described indoor high-voltage vacuum circuit breakers, it is characterized in that: operating mechanism adopts integral spring stored energy operating mechanism or bistable state permanent magnet operating mechanism.
5, according to claim 1 or 2,3 described indoor high-voltage vacuum circuit breakers, it is characterized in that: a stored energy mechanism is arranged in the operating mechanism, stored energy mechanism connects switch spindle through transmission mechanism, and switch spindle is connected with buffer and locking mechanism, and energy storage device also is connected with control device.
6, indoor high-voltage vacuum circuit breaker according to claim 4, it is characterized in that: the stored energy mechanism main body is a reduction box that shell is a cast aluminium, in the reduction box two cover worm and gears, the energy storage axle crosses in the reduction box, cover one bearing on the energy storage axle, this axle sleeve is connected on the big worm gear with key, and a pivot pin is arranged on the axle sleeve, adorns a ratchet above; Right-hand member at the energy storage axle has a cam, and is jagged on the cam, and ratchet drives cam rotation by this breach, at the left end of energy storage axle one crank is housed, and switching-in spring one end hangs on this crank.
7, indoor high-voltage vacuum circuit breaker according to claim 6, it is characterized in that: a leg-of-mutton lever is housed on the pivot pin of reduction box, one needle bearing is housed on the lever, the cam that is connected with switching-in spring is connected with this bearing, another hole of triangle lever connects a connecting rod with pivot pin, and the other end of this connecting rod is contained on the main shaft connecting lever, form quadric chain, also be equipped with one on the pivot pin of reduction box as pinning the needle bearing that the combined floodgate pallet is used.
8, indoor high-voltage vacuum circuit breaker according to claim 5, it is characterized in that: on the connecting lever of switch spindle, tripping spring is housed, also have three pairs of connecting levers on the main shaft, wherein two pairs are connected on combined floodgate rubber skin buffer and the separating brake oil bumper, and another is to adorning one as pinning the needle bearing that the separating brake pallet is used on the connecting lever.
9, indoor high-voltage vacuum circuit breaker according to claim 5 is characterized in that: close, tripping spring connect close, tripping electromagnet, the helix tube type DC electromagnet that close, tripping electromagnet is size, data are identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02220787 CN2548249Y (en) | 2002-05-23 | 2002-05-23 | Indoor high-voltage vacuum circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02220787 CN2548249Y (en) | 2002-05-23 | 2002-05-23 | Indoor high-voltage vacuum circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2548249Y true CN2548249Y (en) | 2003-04-30 |
Family
ID=33699020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02220787 Expired - Lifetime CN2548249Y (en) | 2002-05-23 | 2002-05-23 | Indoor high-voltage vacuum circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2548249Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102176609A (en) * | 2011-01-25 | 2011-09-07 | 郑文秀 | Vacuum arch-quenching final assembly chamber of console type alternative current intelligent switch cubicle |
| CN101807499B (en) * | 2009-05-14 | 2012-08-29 | 上海立新电器控制设备有限公司 | Automatic quick-closing switch |
| CN105304418A (en) * | 2015-09-10 | 2016-02-03 | 陕西宝鼎开关有限公司 | Special main and auxiliary circuit breaker for test station |
| CN105337205A (en) * | 2015-11-14 | 2016-02-17 | 彭伟成 | High-voltage electric transducer |
| CN112151302A (en) * | 2020-09-29 | 2020-12-29 | 四川电器集团中电开关有限公司 | Sulfur hexafluoride circuit breaker control mechanism |
-
2002
- 2002-05-23 CN CN 02220787 patent/CN2548249Y/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101807499B (en) * | 2009-05-14 | 2012-08-29 | 上海立新电器控制设备有限公司 | Automatic quick-closing switch |
| CN102176609A (en) * | 2011-01-25 | 2011-09-07 | 郑文秀 | Vacuum arch-quenching final assembly chamber of console type alternative current intelligent switch cubicle |
| CN105304418A (en) * | 2015-09-10 | 2016-02-03 | 陕西宝鼎开关有限公司 | Special main and auxiliary circuit breaker for test station |
| CN105337205A (en) * | 2015-11-14 | 2016-02-17 | 彭伟成 | High-voltage electric transducer |
| CN107275966A (en) * | 2015-11-14 | 2017-10-20 | 彭伟成 | A kind of high voltage variable electrical equipment |
| CN105337205B (en) * | 2015-11-14 | 2017-10-31 | 金华市秸和环保技术咨询有限公司 | A kind of high voltage variable electrical equipment |
| CN107332147A (en) * | 2015-11-14 | 2017-11-07 | 彭伟成 | A kind of high voltage variable electrical equipment |
| CN107369589A (en) * | 2015-11-14 | 2017-11-21 | 彭伟成 | A kind of high voltage variable electrical equipment |
| CN112151302A (en) * | 2020-09-29 | 2020-12-29 | 四川电器集团中电开关有限公司 | Sulfur hexafluoride circuit breaker control mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20120523 Granted publication date: 20030430 |