CN1251262C - Electric arc preventing method and transitional quencher with the same method - Google Patents
Electric arc preventing method and transitional quencher with the same method Download PDFInfo
- Publication number
- CN1251262C CN1251262C CN 01142058 CN01142058A CN1251262C CN 1251262 C CN1251262 C CN 1251262C CN 01142058 CN01142058 CN 01142058 CN 01142058 A CN01142058 A CN 01142058A CN 1251262 C CN1251262 C CN 1251262C
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- CN
- China
- Prior art keywords
- combined resistance
- contact
- resistance
- disjunction
- fixed contact
- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
- H01H33/16—Impedances connected with contacts
- H01H33/161—Variable impedances
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- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The present invention relates to an electric arc preventing method, and an electric arc preventing device designed with the method when a power switch is connected and disconnected. A composite resistor is serially connected with a switch loop, and the resistance value of the composite resistor in series connection can be gradually increased by following the start of the connection and the disconnection of the power switch until the switch loop is disconnected when the resistance value is maximum. The present invention can thoroughly eliminate the electric arc generated when the power switch is disconnected and communicated with load current, and the wiring mode is changed to realize effective and safe arc extinction; the present invention can be widely used for the arc extinction for various power switches.
Description
Technical field:
The invention belongs to electric field, relate to the disconnected fashionable method of electric arc generation and the device of avoiding electric arc to produce that designs according to this method avoided of power switch.
Technical background:
Work in the power switch of electric power system, main effect is disjunction, is communicated with load current and changes the mode of connection.Power switch can produce very big electric arc when disjunction load current or fault current; the powerful energy that electric arc had can influence the useful life of switch usually; can cause the switch blast when serious, so the inner method that must adopt extinguish arcs of power switch is installed the device of extinguish arcs.Usually adopt the oil immersion cooling at present, elongate and utilize the zero crossing of alternating current to come extinguish arcs, but effect is unsatisfactory, the special extinguish arcs that when running into capacitive character or inductive load current and direct current, is difficult to.
Summary of the invention:
The present invention designs a kind of new arc-suppressing method and the arc-control device of this method of employing, and the electric arc in the time of can thoroughly eliminating the switch disjunction, be communicated with load current and change the mode of connection is realized the highly effective and safe arc extinguishing.
Content of the present invention is: a kind of method of avoiding electric arc to produce, and the combined resistance of in the switch loop, connecting, and the resistance value that makes the combined resistance of being connected becomes greatly loop disjunction again when maximum gradually along with the beginning of switch disjunction.The equal flow that described combined resistance directly contacts with fixed contact or moving contact during by a plurality of disjunction is formed by stacking at interval with a plurality of resistor discs.
That described combined resistance directly contacts with fixed contact or moving contact during by a plurality of disjunction and be fixed on equal flow on the insulation board and link with a plurality of resistance respectively and form.
A kind of transition arc-control device that adopts said method, it comprises a moving contact and a fixed contact, extends a combined resistance on described moving contact or fixed contact.The equal flow that described combined resistance directly contacts with fixed contact or moving contact during by a plurality of disjunction is formed by stacking at interval with a plurality of resistor discs.
That described combined resistance directly contacts with fixed contact or moving contact during by a plurality of disjunction and be fixed on equal flow on the insulation board and link with a plurality of resistance respectively and form.
Be cylindric when described combined resistance is contained on the moving contact.
Be cylindric when described combined resistance is contained on the fixed contact.
Described combined resistance can also be square.
The material of described resistor disc adopts zinc oxide.
Above-mentioned combined resistance adopts anti-large-current electric resistance material with the resistor disc that corresponding contact is close.
Above-mentioned anti-large-current electric resistance material selection carbon.
The present invention since in the switch loop series connection combined resistance and along with the branch resistance break of switch becomes big gradually, promptly the combined resistance of being connected is a slide-changing resistor, be inversely proportional to according to Ohm's law voltage one timing electric current and resistance, electric current is to minimum when resistance arrives maximum, this moment, the loop disconnected, though have very high voltage can puncture air gap on the fracture, do not have the minimum energy electric arc that can't provide of electric current or electric current to form, thereby play the purpose of keeping away arc.Also promptly owing on moving contact or fixed contact, extend a combined resistance, like this when the switch disjunction, relative motion along with dynamic/static contact, combined resistance is gradually by between the series connection precession fixed contact, because the importing gradually of combined resistance, also increased gradually by the voltage of combined resistance load sharing, and dynamic/static contact just reduces gradually through the electric current of combined resistance carrying, when electric current is reduced to several bold and unconstrained ampere-hours section breaker again.The issuable electric arc of big electric current when being the circuit breaker dynamic/static contact disjunction of bearing great current or inductance or electric capacity since big electric current can't be formed by the combined resistance dividing potential drop, thereby reach the purpose of highly effective and safe arc extinguishing.The combined resistance that plays the slide-changing resistor effect that the present invention adopts is formed by stacking at interval by a plurality of equal flows and resistor disc, switch is above-mentioned equal flow and corresponding quiet, moving contact contact when disjunction, and resistor disc does not contact with dynamic/static contact, if decide like this in order to reduce with the contact resistance of contact and to prevent the CURRENT DISTRIBUTION inequality of resistor disc inside.Resistor disc uses the zinc oxide nonlinear piezo-resistance can fine dividing potential drop, reduce volume than conventional linear resistance, when disjunction with corresponding moving or the first or second sheet resistor sheet that fixed contact at first contacts because may bearing great current, should adopt the material of anti-big electric current, as the alloy material similar with electric furnace heating wire, constantan material, carbon etc. bear the ability of big electric current with raising.
Description of drawings:
Fig. 1 is the structural representation that the transition arc-control device places fixed contact extension combined resistance in the fuel tank.
Fig. 2 is the structural representation that the transition arc-control device places moving contact extension combined resistance in the fuel tank.
Fig. 3 is that the interval of equal flow of combined resistance of the present invention and resistor disc is provided with schematic diagram.
Fig. 4 is the structural representation that conducting rod of the present invention extends combined resistance when being moving contact on it.
Fig. 5 is combined resistance of the present invention is connected in series use with switch an example structure schematic diagram.
Embodiment:
Embodiment 1: what accompanying drawing 1 was shown is to extend a combined resistance on fixed contact.Fuel tank 1 is provided with fuel tank cap 2 among the figure, moving contact 3 probes in the fixed contact 4, extend a combined resistance 5 on fixed contact 4 tops, at this combined resistance 5 is cylindric, combined resistance 5 is by a plurality of resistor discs 6 and equal flow 7 (see figure 3)s that is formed by stacking at interval, all flow 7 path lengths are greater than resistor disc 6, equal flow 7 contacts with moving contact respectively when dynamic/static contact separates, also being about to combined resistance 5 series connection advances switching circuit and shunts, by resistor disc with the voltage load sharing between dynamic/static contact and weaken electric current, the resistance maximum that when the complete disjunction of switch, is connected into, electric current is cut to minimum, have high voltage can't form electric arc this moment merely, thereby realize the purpose of efficient arc extinguishing.
Embodiment 2: extend a cylindric combined resistance 5 on moving contact 3.Described combined resistance 5 equally by a plurality of resistor discs 6 and all flow 7 be formed by stacking at interval, equal flow 7 contact with fixed contact 4 respectively when dynamic/static contact separates, and also is about to combined resistance 5 switching circuit of connecting and shunts, thereby realize the purpose of efficient arc extinguishing.
Embodiment 1 and embodiment 2 all are that the serial connection combined resistance carries out arc extinguishing on the SN1-10 switch
Embodiment 3: seeing Fig. 4, is that the serial connection combined resistance carries out arc extinguishing on the combination switch of using in the reactive power compensation cabinet.Fixed contact 4 among the figure has a plurality of, conducting rod of the present invention is a moving contact 3, extend combined resistance 5 on it, when moving contact successively when each fixed contact 4 withdraws from, combined resistance 5 inserts each fixed contact 4 successively, when this fixed contact 4 disconnects fully with moving contact 3, combined resistance 5 and these fixed contact 4 contact area maximums, the resistance maximum can effectively stop the generation of electric arc, and the combined resistance 5 of present embodiment is square.
Embodiment 4: the foregoing description all is that combined resistance is contained in switch inside, be connected as a single entity with moving contact or fixed contact, combined resistance can also constitute slide-changing resistor with conducting rod and be contained in switch outside and switch series connection independently, as making flow restricter and existing switch series connection use separately.The combined resistance of Fig. 5 is by the battery lead plate 7 ' that uses as equal flow, a plurality of battery lead plates 7 ' are fixed on the insulation board 8, a plurality of battery lead plates 7 ' link to each other with separately resistance 6 ' by lead, just use in this equal flow as battery lead plate 7 ', resistance 6 ' neither just link to each other with the battery lead plate 7 ' that plays equal flow effect but can be placed on other places with resistor disc and all flow stacks.
Claims (8)
1. method of avoiding electric arc to produce, the combined resistance of in the switch loop, connecting, and the resistance value that makes the combined resistance of being connected is along with the beginning of switch disjunction becomes big gradually, loop disjunction again when maximum, the equal flow that directly contacts with fixed contact or moving contact when it is characterized in that described combined resistance by a plurality of disjunction is formed by stacking at interval with a plurality of resistor discs.
2. the method for avoiding electric arc to produce according to claim 1, directly contact when it is characterized in that described combined resistance with fixed contact or moving contact by a plurality of disjunction and be fixed on equal flow on the insulation board and link with a plurality of resistance respectively and form.
3. transition arc-control device that adopts said method, comprise a moving contact and a fixed contact, extend a combined resistance on described moving contact or the fixed contact, the equal flow that directly contacts with fixed contact or moving contact when it is characterized in that described combined resistance by a plurality of disjunction is formed by stacking at interval with a plurality of resistor discs.
4. transition arc-control device according to claim 3 is characterized in that when described combined resistance is contained on the moving contact being cylindric.
5. transition arc-control device according to claim 3 is characterized in that when described combined resistance is contained on the fixed contact being cylindric.
6. transition arc-control device according to claim 3 is characterized in that the material of described resistor disc adopts zinc oxide.
7. transition arc-control device according to claim 3 is characterized in that described combined resistance and the immediate resistor disc of corresponding contact adopt anti-large-current electric resistance material.
8. transition arc-control device according to claim 7 is characterized in that described anti-large-current electric resistance material selection carbon.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01142058 CN1251262C (en) | 2001-09-10 | 2001-09-10 | Electric arc preventing method and transitional quencher with the same method |
| PCT/CN2002/000620 WO2003023803A1 (en) | 2001-09-10 | 2002-09-05 | A method of avoiding electric arc and a transient arc suppression means with the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01142058 CN1251262C (en) | 2001-09-10 | 2001-09-10 | Electric arc preventing method and transitional quencher with the same method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1404085A CN1404085A (en) | 2003-03-19 |
| CN1251262C true CN1251262C (en) | 2006-04-12 |
Family
ID=4676594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01142058 Expired - Fee Related CN1251262C (en) | 2001-09-10 | 2001-09-10 | Electric arc preventing method and transitional quencher with the same method |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN1251262C (en) |
| WO (1) | WO2003023803A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105206448A (en) * | 2014-06-30 | 2015-12-30 | 赵劲帅 | Safe power switch |
| CN106653492A (en) * | 2015-10-29 | 2017-05-10 | 茆敦华 | Alternating (direct) current non-arc contactor possessing series-resistance-type circuit division and combination system |
| CN113725047A (en) * | 2020-05-26 | 2021-11-30 | 国网福建省电力有限公司 | Static contact and switch device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2676587B1 (en) * | 1991-05-17 | 1994-06-10 | Alsthom Gec | CIRCUIT BREAKER WITH LARGE BREAKING POWER. |
| CN2157585Y (en) * | 1993-06-30 | 1994-02-23 | 吴江开关总厂 | Moving contact mechanism for compound vacuum loaded tap switch |
| CN2189350Y (en) * | 1994-01-24 | 1995-02-08 | 王勇雄 | Switch for arc-extinguishing coil |
| JP2000311536A (en) * | 1999-04-26 | 2000-11-07 | Toshiba Corp | Gas-insulated switch |
| DE20008036U1 (en) * | 2000-05-04 | 2000-08-03 | Sero Schroeder Elektronik Rohr | Circuit arrangement for suppressing an arc in a switch contact |
-
2001
- 2001-09-10 CN CN 01142058 patent/CN1251262C/en not_active Expired - Fee Related
-
2002
- 2002-09-05 WO PCT/CN2002/000620 patent/WO2003023803A1/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| CN1404085A (en) | 2003-03-19 |
| WO2003023803A1 (en) | 2003-03-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Beijing Herui SEL Power Science & Technology Co., Ltd. Assignor: Xia Lixia Contract fulfillment period: 2008.11.28 to 2013.11.28 contract change Contract record no.: 2008990001291 Denomination of invention: Electric arc preventing method and transitional quencher with the same method Granted publication date: 20060412 License type: Exclusive license Record date: 2008.12.1 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.11.28 TO 2013.11.28; CHANGE OF CONTRACT Name of requester: BEIJING HERUI SAIER POWER SCIENCE CO., LTD. Effective date: 20081201 |
|
| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: Beijing Herui SEL Power Science & Technology Co., Ltd. Assignor: Xia Lixia Contract record no.: 2008990001291 Date of cancellation: 20110420 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060412 Termination date: 20130910 |