CN102420084A - Self-powered type direct-current quick circuit breaker - Google Patents
Self-powered type direct-current quick circuit breaker Download PDFInfo
- Publication number
- CN102420084A CN102420084A CN2011102457817A CN201110245781A CN102420084A CN 102420084 A CN102420084 A CN 102420084A CN 2011102457817 A CN2011102457817 A CN 2011102457817A CN 201110245781 A CN201110245781 A CN 201110245781A CN 102420084 A CN102420084 A CN 102420084A
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- circuit breaker
- arc
- current quick
- energy
- switch body
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- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The invention discloses a self-powered type direct-current quick circuit breaker which comprises a circuit breaker switch main body, a first transient connecting device, a second transient connecting device, an arc voltage suppressing device and an energy absorbing device, wherein a series branch circuit consisting of the arc voltage suppressing device and the first transient connecting device is connected at two ends of the circuit breaker switch main body in parallel and is used for generating a suppression voltage of which the polarity is opposite to that of the arc voltage; and a series branch circuit consisting of the energy absorbing device and the second transient connecting device is connected at two ends of the circuit breaker switch main body in parallel and is used for absorbing arc energy generated by the circuit breaker switch main body in the switching in/off process. According to the self-power type direct-current quick circuit breaker, the switching on/off passive operation of the circuit breaker switch main body can be realized; meanwhile, the roles in reducing the arc energy and extinguishing the arc can be played; the electromagnetic pollution is avoided; and the service life of the circuit breaker can be prolonged.
Description
Technical field
The present invention relates to the power equipment circuit breaker, relate in particular to the formula direct current quick breaker that is applicable in the mesolow direct current transmission and distribution field from the source.
Background technology
The circuit breaker of mesolow direct current transmission and distribution uses arc-chute to carry out arc extinguishing at present, because electric arc is very long, energy is very big, usually causes the arc-chute scaling loss, and the metal of thawing is bonded on the circuit breaker dynamic/static contact easily, has influence on the useful life of circuit breaker; In addition, use the dc circuit breaker of arc-chute to safeguard that frequently the existence of arcing also can have influence on the circuit breaker peripheral equipment, brings electromagnetic pollution.
Summary of the invention
The purpose of this invention is to provide a kind of from the source formula direct current quick breaker, can realize that circuit breaker does not have electric arc and cut-offs the passive operation with on/off switch.
The present invention adopts following technical proposals: a kind of from the source formula direct current quick breaker, comprise the killer switch body, also comprise the first momentary connection device and the second momentary connection device;
The arc voltage device of drawing up, the series arm that itself and the first momentary connection device are formed is connected in parallel on killer switch body two ends, is used for producing and the opposite polarity voltage of drawing up of arc voltage;
Energy absorbing device, the series arm that itself and the second momentary connection device are formed is connected in parallel on killer switch body two ends, is used for absorbing the arc energy that killer switch body on/off switch process produces.
The described arc voltage device of drawing up adopts the voltage coil of drawing up.
Described energy absorbing device adopts electric capacity.
The present invention is draw up device branch road and energy absorbing device branch road of shunt voltage at killer switch body two ends, and the voltage voltage that the device branch road can produce higher back electromotive force and electric arc of drawing up offsets a part, plays the effect that reduces arc voltage; Energy absorbing device can absorb the energy of electric arc, absorbs the energy of the portion of energy of electric arc as killer switch body on/off switch action need, realizes the passive operation of on/off switch; Simultaneously also can play the reduction arc energy, the effect of extinguish arcs avoids bringing electromagnetic pollution; This device can also prolong the useful life of circuit breaker simultaneously.
Description of drawings
Fig. 1 is circuit theory diagrams of the present invention.
Embodiment
As shown in Figure 1; The present invention is the formula direct current quick breaker from the source; Comprise killer switch body 5; The signal input end that also comprises the first momentary connection device 2 and the second momentary connection device, 3, the first momentary connection devices 2 and the second momentary connection device 3 is used for being connected with the control signal output ends of circuit breaker control unit; The arc voltage device 1 of drawing up, the series arm that itself and the first momentary connection device 2 are formed is connected in parallel on killer switch body 5 two ends, is used for producing and the opposite polarity voltage of drawing up of arc voltage; Energy absorbing device 4, the series arm that itself and the second momentary connection device 3 are formed is connected in parallel on killer switch body 5 two ends, is used for absorbing the arc energy that killer switch body 5 on/off switch processes produce.Draw up device 1 of arc voltage adopts the voltage coil of drawing up in the present embodiment; Energy absorbing device 4 adopts electric capacity.This killer switch body 5 comprises dynamic and static contact; Major function is under the control of circuit breaker control unit, to realize cut-offfing and closure of main circuit current; Generally select Electromagnetic Drive for use; Also can select spring energy-storage to drive, how circuit breaker control unit is controlled and is realized that circuit breaker cut-offs and be prior art, repeats no more at this.
As shown in Figure 1; When killer switch body 5 breaks off major loop; The signal output part of circuit breaker control unit promptly sends signal and makes its closure for the first momentary connection device 2 and the second momentary connection device 3; Then the arc voltage major loop that device 1 branch road and energy absorbing device 4 branch roads and killer switch body 5 controlled of drawing up is connected; The high-voltage arc that killer switch body 5 separating brakes produce makes the arc voltage device 1 of drawing up produce higher back electromotive force and offset a part with the arc voltage that killer switch body 5 produces, and plays the effect of reduction arc voltage; Energy absorbing device 4 work simultaneously, the energy of absorption electric arc absorbs the energy of the portion of energy of electric arc as killer switch body 5 on/off switch action needs, also can play the reduction arc energy, the effect of extinguish arcs simultaneously.After 5 blow-outs of killer switch body, the signal output part of circuit breaker control unit promptly sends signal and breaks off the first momentary connection device 2 and the second momentary connection device 3, and then the separating brake process is accomplished., killer switch body 5 can utilize the energy of storage in the energy absorbing device 4 to realize this closing operation of killer switch body 5 and the sub-switching operation of next time when closing a floodgate.
Claims (3)
- One kind from the source formula direct current quick breaker, comprise the killer switch body, it is characterized in that: also comprise the first momentary connection device and the second momentary connection device;The arc voltage device of drawing up, the series arm that itself and the first momentary connection device are formed is connected in parallel on killer switch body two ends, is used for producing and the opposite polarity voltage of drawing up of arc voltage;Energy absorbing device, the series arm that itself and the second momentary connection device are formed is connected in parallel on killer switch body two ends, is used for absorbing the arc energy that killer switch body on/off switch process produces.
- 2. according to claim 1 from the source formula direct current quick breaker, it is characterized in that: the described arc voltage device of drawing up adopts the voltage coil of drawing up.
- 3. according to claim 1 and 2 from the source formula direct current quick breaker, it is characterized in that: described energy absorbing device adopts electric capacity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102457817A CN102420084A (en) | 2011-08-25 | 2011-08-25 | Self-powered type direct-current quick circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102457817A CN102420084A (en) | 2011-08-25 | 2011-08-25 | Self-powered type direct-current quick circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102420084A true CN102420084A (en) | 2012-04-18 |
Family
ID=45944434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102457817A Pending CN102420084A (en) | 2011-08-25 | 2011-08-25 | Self-powered type direct-current quick circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102420084A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109193599A (en) * | 2018-11-02 | 2019-01-11 | 李振奎 | A kind of ladder cuts unrestrained arc-suppressing method and extinguisher |
| CN109361204A (en) * | 2018-09-16 | 2019-02-19 | 王雪燕 | A kind of arc-extinction device and method can be used for power grid AC and DC breaker |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1107251A (en) * | 1993-02-22 | 1995-08-23 | 杨泰和 | Arc-distinction circuit for breaking dc circuit |
| JPH1040786A (en) * | 1996-07-18 | 1998-02-13 | Mitsubishi Electric Corp | Self-excited communication direct current breaker |
| JP2004288478A (en) * | 2003-03-24 | 2004-10-14 | Toshiba Corp | Direct current circuit breaker |
| CN201229893Y (en) * | 2008-06-30 | 2009-04-29 | 中国西电电气股份有限公司 | A converting switch circuit construction for high voltage DC transmission |
-
2011
- 2011-08-25 CN CN2011102457817A patent/CN102420084A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1107251A (en) * | 1993-02-22 | 1995-08-23 | 杨泰和 | Arc-distinction circuit for breaking dc circuit |
| JPH1040786A (en) * | 1996-07-18 | 1998-02-13 | Mitsubishi Electric Corp | Self-excited communication direct current breaker |
| JP2004288478A (en) * | 2003-03-24 | 2004-10-14 | Toshiba Corp | Direct current circuit breaker |
| CN201229893Y (en) * | 2008-06-30 | 2009-04-29 | 中国西电电气股份有限公司 | A converting switch circuit construction for high voltage DC transmission |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109361204A (en) * | 2018-09-16 | 2019-02-19 | 王雪燕 | A kind of arc-extinction device and method can be used for power grid AC and DC breaker |
| CN109193599A (en) * | 2018-11-02 | 2019-01-11 | 李振奎 | A kind of ladder cuts unrestrained arc-suppressing method and extinguisher |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120418 |