CN2494028Y - Transition arc-extinguisher - Google Patents
Transition arc-extinguisher Download PDFInfo
- Publication number
- CN2494028Y CN2494028Y CN 01260709 CN01260709U CN2494028Y CN 2494028 Y CN2494028 Y CN 2494028Y CN 01260709 CN01260709 CN 01260709 CN 01260709 U CN01260709 U CN 01260709U CN 2494028 Y CN2494028 Y CN 2494028Y
- Authority
- CN
- China
- Prior art keywords
- combined resistance
- contact
- transition arc
- control device
- arc
- 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
Images
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The utility model relates to a switch in the power system or an arc-extinguishing device which is arranged on the breaker. The utility model comprises a moving contact and a static contact, and the moving contact or the static contact extends out a composite resistance. The utility model can eliminate the arc of the switch breaking, the connected loading current or when the connection mode is changed thoroughly, thus the efficient safety arc-extinguishing can be obtained. The utility model is widely suitable for arc-extinguishing of various power switches.
Description
Technical field:
The arc-control device that is provided with on switch in a kind of electric power system of the utility model or the circuit breaker.
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 power switch is inner the device of extinguish arcs must be installed.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 utility model designs a kind of arc-control device, 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 utility model is: it comprises a moving contact and a fixed contact, extends a combined resistance on described moving contact or fixed contact.
The equal flow that above-mentioned 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.
Be cylindric when above-mentioned combined resistance is contained on the moving contact.
Be cylindric when above-mentioned combined resistance is contained on the fixed contact.
Above-mentioned combined resistance can also be square.
The material of above-mentioned 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 utility model is owing to extend a combined resistance on moving contact or fixed contact, 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 constantan material similar with electric furnace heating wire, alloy material, carbon etc. bear the ability of big electric current with raising.
Description of drawings:
Fig. 1 is the structural representation that the utility model places fixed contact extension combined resistance in the fuel tank.
Fig. 2 is the structural representation that the utility model places moving contact extension combined resistance in the fuel tank.
Fig. 3 is that the interval of equal flow of the utility model combined resistance and resistor disc is provided with schematic diagram.
Fig. 4 is the structural representation that extends combined resistance on the utility model conducting rod.
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, and combined resistance 5 and these fixed contact 4 contact area maximums, the resistance maximum can effectively stop the generation of electric arc.
Claims (7)
1. a transition arc-control device comprises a moving contact and a fixed contact, it is characterized in that extending on described moving contact or fixed contact a combined resistance.
2. transition arc-control device according to claim 1, 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.
3. transition arc-control device according to claim 1 and 2 is characterized in that when described combined resistance is contained on the moving contact being cylindric.
4. transition arc-control device according to claim 1 and 2 is characterized in that when described combined resistance is contained on the fixed contact being cylindric.
5. transition arc-control device according to claim 2 is characterized in that the material of described resistor disc adopts zinc oxide.
6. transition arc-control device according to claim 2 is characterized in that described combined resistance and the immediate resistor disc of corresponding contact adopt anti-large-current electric resistance material.
7. transition arc-control device according to claim 6 is characterized in that described anti-large-current electric resistance material selection carbon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01260709 CN2494028Y (en) | 2001-09-10 | 2001-09-10 | Transition arc-extinguisher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01260709 CN2494028Y (en) | 2001-09-10 | 2001-09-10 | Transition arc-extinguisher |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2494028Y true CN2494028Y (en) | 2002-05-29 |
Family
ID=33668801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01260709 Expired - Lifetime CN2494028Y (en) | 2001-09-10 | 2001-09-10 | Transition arc-extinguisher |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2494028Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103117180A (en) * | 2011-11-16 | 2013-05-22 | 施耐德电器工业公司 | Contact assembly and breaker comprising the same |
-
2001
- 2001-09-10 CN CN 01260709 patent/CN2494028Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103117180A (en) * | 2011-11-16 | 2013-05-22 | 施耐德电器工业公司 | Contact assembly and breaker comprising the same |
| CN103117180B (en) * | 2011-11-16 | 2015-12-02 | 施耐德电器工业公司 | Contact assembly and the circuit breaker comprising this contact assembly |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103021739A (en) | Hybrid direct-current circuit breaker | |
| EP1742241A2 (en) | Watercraft with direct current circuit comprising a vaccum switch | |
| Sawa et al. | Arc characteristics and electrode mass change of AgNi contacts for electromagnetic contactors | |
| Jemaa et al. | Anodic to cathodic arc transition according to break arc lengthening | |
| CN1068135C (en) | Arc-distinction circuit for breaking dc circuit | |
| CN2494028Y (en) | Transition arc-extinguisher | |
| CN1251262C (en) | Electric arc preventing method and transitional quencher with the same method | |
| CN111863465B (en) | Double-station circuit breaker, direct-current combined electrical apparatus applying same and working method | |
| Doublet et al. | Make arc erosion and welding tendency under 42 VDC in automotive area [electric contacts] | |
| CN2747700Y (en) | Single-turn type contact for vacuum arc-extiguishing chamber | |
| CN2862287Y (en) | On-load tapchanger of transformer without electric arc | |
| CN2468145Y (en) | Electronic combined switch | |
| CN209571830U (en) | The control circuit and wind electric converter of filter condenser in wind electric converter | |
| Wang et al. | Prestrike characteristics when switching on inrush current in 40.5 kV VIs with axial magnetic field | |
| CN201532898U (en) | Arc control device of high-voltage load switch | |
| JPS60189130A (en) | Composite type breaking device | |
| CN107331571B (en) | Vacuum arc-extinguishing chamber contact for switching capacitor bank and control method thereof | |
| CN101615534A (en) | Permanent magnet opening and closing type DC intelligent circuit breaker | |
| JP5134800B2 (en) | Electrode material and electrode | |
| Jia et al. | Analysis and experimental research on a novel multi-contact MVDC natural current commutation breaking topology | |
| Slade | The consequences of arcing | |
| CN2244769Y (en) | Arc-free breaker for dc electrical appliance with contacts | |
| CN2751425Y (en) | Bipolar contact for vacuum arc extinguish chamber | |
| Sawa | Arc discharge and contact reliability in switching and commutating contacts | |
| CN209526512U (en) | A kind of solid combination switch device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20060412 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |