CN102024610A - Circuit breaker - Google Patents
Circuit breaker Download PDFInfo
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- CN102024610A CN102024610A CN201010274380XA CN201010274380A CN102024610A CN 102024610 A CN102024610 A CN 102024610A CN 201010274380X A CN201010274380X A CN 201010274380XA CN 201010274380 A CN201010274380 A CN 201010274380A CN 102024610 A CN102024610 A CN 102024610A
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Abstract
The invention relates to a circuit breaker for improving insulating property while being capable of reducing the diameter of a metal container of the circuit breaker. The following components are arranged in the sealed container isolated by insulating clapboard of central conductor and filled with insulting gas: a fixed side conductor installed on the central conductor of insulating clapboard of one side; a fixed side contact element connected with the fixed side conductor; an electric arc contact terminal installed on the inner side of the fixed side contact element; a fixed side shielding hood allocated to surround the fixed side contact element; a movable element in contact with the fixed side contact element and the electric arc contact terminal and firstly cut off from the fixed side contact element before being turned off with the electric arc contact terminal; a spring driving the electric arc contact terminal to move along the axial direction if the movable element is cut off; and a following device of supporting framework; besides, a serially connected inductor provided with coil part or magnet is inserted between an electric arc extinguishing part of the electric arc contact terminal and the fixed side conductor.
Description
Technical field
The present invention relates to circuit breaker, particularly about being disposed at the circuit breaker at electric substation or switching station etc.
Background technology
In the opening and closing device of circuit breaker that constitutes gas insulation opening and closing arrangement or switching off device etc., the possibility that high frequency switching surge takes place during switching is very high, and is special in the slow circuit breaker of opening and closing speed, and electric arc is fired in easy generation again in the on-off action.
In the circuit breaker on-off action fire again generation surge that electric arc causes from number MHz to tens of MHz, the frequency height, it is also high that frequency takes place for it, and, such generation surge is owing to being the high precipitous overvoltage of occurrence frequency, so be easy to generate the low problem of circuit breaker insulation property.
One of countermeasure that takes place as the surge that suppresses to become the low reason of these insulation property for example discloses in Japan Patent is openly put down into 3-129615 number (patent documentation 1) communique in that the surge place takes place and has nearby disposed the circuit breaker that peak value that resistive element makes precipitous surge voltage reduces.
But, in documents 1, has the problem that breaker portion maximizes, in order to address this problem, in Japan Patent is openly put down into 5-342952 number (patent documentation 2) communique, disclose the fixedly contact element part that inductance coil is arranged at circuit breaker, when preventing that circuit breaker from maximizing, also made the countermeasure of the peak value reduction that opens and closes surge voltage.
Figure 16 has represented an embodiment of the opening and closing device that patent documentation 2 relates to.In this opening and closing device, it is characterized in that being connected in series with fixed electrode 101 is provided with inductance coil 102, inductance coil 102 also is connected screening arrangement 103.According to this structure, after movable contact 104 separated from trumpet type contact 105, arc discharge flow to fixed electrode 101 from radome 103 through inductance coil 102.
In view of the above, when preventing that circuit breaker from maximizing, the peak value that opens and closes surge voltage is reduced becomes possibility.In addition, in this structure, 102 of inductance coils in the on-off action just stream electric current is arranged, therefore, realize that the inductance effect that surge reduces only has an effect when the on-off action of surge easily takes place, in view of the above, can suppress the high frequency surge effectively.
But according to the structure of above-mentioned patent documentation 2, radome 103 is exposed in the electric arc, and its result is because of radome 103 deteriorations, consumption can cause the low danger of insulating.
In addition, according to the structure of patent documentation 2, because radome 103 is exposed in the electric arc, so this part will be applied in high voltage, therefore, do not maintain a certain distance between radome 103 and the canister, just can not guarantee insulating properties, its result, there is boundary in the miniaturization of canister.
Also have,,, need to make the few precious metal material of radome 103 fusions to make, therefore, can produce the problem that manufacturing cost increases in order to suppress because of being exposed to deterioration, the consumption of the radome 103 that causes in the electric arc according to the structure of patent documentation 2.
Summary of the invention
The objective of the invention is to, the inductance effect that the realization surge reduces is kept in the effect that only works in the on-off action of surge easily takes place, solve the problem points of foregoing invention, when promptly keeping the insulation property of circuit breaker, realize further dwindling and the reduction of manufacturing cost of canister diameter.
In order to solve above-mentioned problem, first circuit breaker of the present invention is being separated with the insulating barrier that has center conductor respectively and enclosed in the closed container of insulating gas, has: the fixation side conductor is installed on the center conductor of a side insulating barrier; The fixation side contact element is connected with described fixation side conductor; Arc contact is installed on the inboard of described fixation side contact element; The fixation side radome surrounds described fixation side contact element and disposes; Moving element, going ahead of the rest when contacting with described fixation side contact element and described arc contact, before opening a way with described arc contact disconnects from described fixation side contact element; Hunting gear moves described arc contact hunting shaft direction when described moving element disconnects, and it is characterized in that, has the connect inductance of insertion of between the electric arc arcing portion of described arc contact and described fixation side conductor electricity.
Second circuit breaker of the present invention is characterized in that, described hunting gear by spring, and movably support described spring and the support frame that is electrically connected with described arc contact and described fixation side contact element to constitute freely.
The 3rd circuit breaker of the present invention is characterized in that, described inductance is the coil portion that conductor is wound into coiled type.
The 4th circuit breaker of the present invention is being separated with the insulating barrier that has center conductor respectively and enclosed in the closed container of insulating gas, is constructed as follows parts: the fixation side conductor is installed on the center conductor of a side insulating barrier; The fixation side contact element is connected with described fixation side conductor; Arc contact is installed on the inboard of described fixation side contact element; The fixation side radome surrounds described fixation side contact element and disposes; Moving element, going ahead of the rest when contacting with described fixation side contact element and described arc contact, before opening a way with described arc contact disconnects from described fixation side contact element; Spring is followed at direction of principal axis described arc contact and is moved when described moving element disconnects; Support frame, movably support described spring freely and be electrically insulated from described arc contact and described fixation side contact element, it is characterized in that, described spring as electricity between arc contact and described fixation side conductor connect insertion inductance and work.
According to first to the 3rd invention, light electric arc at arc contact, the danger that the fixation side radome partly is exposed in the electric arc is lowered, its result, the fixation side radome is reduced, can keep insulation property by the danger of deterioration, consumption.
In addition, thereby the danger reduction that makes fixation side radome portion light electric arc can prevent to apply high voltage at the fixation side radome, so, even shortening, the distance between fixation side radome and canister also can keep insulation property, in view of the above, the further miniaturization of realization canister becomes possibility.
In addition, because the danger that partly is exposed in the electric arc of fixation side radome is lowered, so, can make the fixation side radome with formations such as the material of cheapness such as aluminium, can reduce manufacturing cost in view of the above.
Also have, owing to do not light electric arc in fixation side radome part, so, can cover the fixation side radome with insulating material, in view of the above, can further realize the raising of insulation property.In addition, insulation distance can also be further shortened, the canister reduced can be further made from the fixation side radome to canister.
According to the 4th invention, arc contact and spring are independent respectively to be made, be connected in series mutually, and so easy manufacturing, this compares with the structure that first to the 3rd invention makes arc contact self have coil, causes making alleviating of burden.Therefore, the 4th invention except the effect of first to the 3rd invention, can also be cut down the worker ordinal number and lower manufacturing cost.
Description of drawings
Fig. 1 is the sectional drawing of representing as the state after the circuit breaker disconnection just of one embodiment of the invention.
Fig. 2 is the sectional drawing of expression as the breaker closing state of one embodiment of the invention.
Fig. 3 is the sectional drawing of expression as the circuit breaker off-state of one embodiment of the invention.
Fig. 4 is the amplification profile diagram of the portion that opens circuit of Fig. 1.
Fig. 5 (a) is the front view of the fixation side seen from movable side in the circuit breaker of Fig. 1; Fig. 5 (b) is the front view of the movable side seen from fixation side in the circuit breaker of Fig. 1.
Fig. 6 is the amplification profile diagram of the arc contact of first example use.
Fig. 7 represents an illustration shape of the surge of the arcing again waveform that takes place.
Fig. 8 is the surge oscillogram that expression takes place when using the arc contact that embodiment 1 relates to.
Fig. 9 is the graph of a relation of expression surge voltage to circuit impedance.
Figure 10 is the current potential of expression arc contact of the present invention and the current potential comparison diagram of fixation side radome.
Figure 11 is that expression has electrodeless covering and the comparison diagram of the insulation breakdown voltage that causes.
Figure 12 is the figure of second embodiment that the present invention relates to of expression.
Figure 13 is the figure of the 3rd embodiment that the present invention relates to of expression.
Figure 14 is the figure of the 4th embodiment that the present invention relates to of expression.
Figure 15 is the amplification profile diagram of the arc contact of the 4th embodiment use.
Figure 16 is the sectional drawing of the portion that opens circuit that the existing circuit breaker of inductance coil is set in fixation side radome series connection.
Embodiment
The optimal morphology that carries out an invention
Below, with regard to example of the present invention, describe with reference to accompanying drawing.
Fig. 1-the 3rd is as the sectional drawing of the circuit breaker of one embodiment of the invention, Fig. 1 represents the state after circuit breaker has just disconnected, Fig. 2 represents the breaker closing state, Fig. 3 represents the circuit breaker off-state, Fig. 4 is the amplification profile diagram of the portion that opens circuit of Fig. 1, and Fig. 5 (a) is the front view of the fixation side seen from movable side in the circuit breaker of Fig. 1; Fig. 5 (b) is the front view of the movable side seen from fixation side in the circuit breaker of Fig. 1, and Fig. 6 is the amplification profile diagram of arc contact.
The structure of the circuit breaker of embodiment 1 is, has: canister 1, moving element 2, arc contact 3A, spring 4, fixation side contact 5a, movable side contact 5b, fixation side radome 6a, movable side radome 6b, fixation side conductor 7, movable side neck shape conductor 8, insulating barrier 10a, 10b, action bars 12, support frame 15A, high- pressure conductor 17a, 17b, center conductor 18a, 18b.
Thereby closed container 1 will have insulating barrier 10a, the configuration of 10b subtend of center conductor 18a, 18b to be cut apart, and in this closed container, is enclosed dry air or SF
6Isolation mediums such as gas, and, in closed container 1, with the center conductor 18a of insulating barrier 10a, 10b, high- pressure conductor 17a, 17b that 18b is connected to be supported by the state of electric insulation from closed container 1.
The center conductor 18a of one side's insulating barrier 10a, the fixation side conductor 7 that is fixed in this is mounted fixation side contact 5a, is electrically connected, and this fixation side contact 5a is configured to the inboard of its front end and the outside of moving element 2 joins.
In addition, the inboard of this fixation side contact 5a is equipped with spring 4 that support to support frame 15A and arc contact 3A and constitutes hunting gears, the structure that can the hunting shaft direction when becoming moving element 2 and disconnecting moves.The structure of electric arc arcing portion 21 that is positioned at the leading section of arc contact 3A is: contact energising with moving element 2 before just disconnecting; And in off-state, outstanding from the leading section of fixation side contact 5a.
The movable side neck shape conductor 8 of the center conductor 18b of another insulating barrier 10b through being fixed in this supported movable side contact 5b, makes the configuration of this movable side contact 5b and fixation side contact 5a subtend.Cushion the movable side radome 6b of usefulness in order to surround its peripheral part at movable contact 5b configuration electric field.This movable side radome 6b and fixation side radome 6a constitute in the same manner.
Moving element 2 opens and closes and bridges at possibly between fixation side contact 5a and the movable side contact 5b, and it is free end side that these moving element 2 contacts are connected in another of insulating bar 12 distolateral, in order to opening and closing operations on this axis.At the distolateral gyroaxis 19 that keeps gas being exported in airtight outside the closed container 1 that is connected with of another of this action bars 12, in addition, also connect not shown operator at this gyroaxis 19.
In embodiment 1, in order to suppress the generation of high frequency surge, an one of arc contact 3A is constituted with the coil shape that becomes inductance, the detailed structure of this arc contact is as shown in Figure 6.Arc contact 3A as shown in Figure 6 constitutes with following part: light electric arc arcing portion 21, reel to form the coil portion 22 of coil, the support insulation division of in the coil spiral, supporting respectively with the contact site 23 of supporting frame 15A to electrically contact, with them 24.
During the electric arc arcing, electric current flows through through electric arc arcing portion 21, coil portion 22, contact site 23 supports frame 15A and fixation side conductor 7, so, need be electrically connected separately.For the consumption that suppresses to cause because of electric arc, be exposed to the part of the electric arc of electric arc arcing portion 21, preferably adopt the are-tight property alloy that in copper, adds tungsten, chromium etc.
In addition, coil portion 22 or contact site 23 be owing to need flow through electric current when surge takes place, so, conduct electricity the good metal material like that with for example copper, aluminium or their alloy and constitute.And, support insulation division 24 to constitute with sufficient insulating material such as the intensity of FRP material or epoxy resin etc. in order to support above-mentioned each parts.
Below, the action of specification embodiment 1.Fig. 2 represents the closure state of circuit breaker, and Fig. 3 represents the off-state of circuit breaker, and Fig. 1 represents the state after the firm disconnection of circuit breaker.
At the closure state of Fig. 2, moving element 2 joins with arc contact 3A and fixation side contact 5a, at this moment, between fixation side conductor 7 and movable side neck shape conductor 8, electric current flow through fixation side contact 5a, moving element 2 and movable side contact 5b.Because the coil portion 22 at arc contact 3A flows through system power hardly, so the loss that inductance produces is considerably less.
Different therewith, state after firm disconnection shown in Figure 1, as follows, 5a does not flow through electric current at the fixation side contact, but flow through electric current through arc contact 3A, in off-state, moving element 2 rotates according to action bars 12 clockwise directions from the closure state of Fig. 2, slides in the direction of insulating barrier 10b.
At this moment, arc contact 3A is along supporting frame 15A to extrude by spring 4, move in the direction of the insulating barrier 10b of canister 1 with state with moving element 2 one, in case moving element 2 is moved further, then fixation side contact 5a and moving element 2 contact releasing, become 2 of moving elements and arc contact 3A state of contact.
If moving element 2 further moves in the direction of insulating barrier 10b, so, just arc contact 3A stops in end that supporting frame 15A.If moving element 2 is moved further, so, as shown in Figure 1, be disengaged the state of electric arc arcing with contacting of moving element 2 just become arc contact 3A.
Fig. 4 represents that the left end of moving element 2 is indexed to the state of the right-hand member of fixation side radome 6a, and at this state, electric arc arcing portion 21 is set to the gap d of the front end of moving element 2, and is littler than the clearance D between moving element 2 and the fixation side radome 6a.
If adopt this size relationship, electric arc occurs in little gap d, can not occur between fixation side radome 6a and the moving element 2, therefore, arc current merely flows to coil portion 22 from electric arc arcing portion 21, so by the inductance of coil portion 22, the peak value of surge voltage of electric arc of resulting from is suppressed.
If moving element 2 further moves in the direction of insulating barrier 10b from the state of Fig. 1, the insulation distance that arc contact 3A and moving element are 2 fully is expanded, and so, will become the state that does not take place to discharge, electric current is cut off, and becomes open-circuit condition shown in Figure 3 thus.
Fig. 7 is the illustration shape that the surge of the arcing again waveform that takes place under the common arc contact situation that does not have inductance has been used in expression, and the longitudinal axis is that voltage (p.u.), transverse axis are elapsed time (ns).Among this figure, the above high frequency voltage of number MHz takes place in the expression surge when taking place, and the peak value of the voltage of generation depends on circuit condition, but is about 2.5 times voltage of working voltage sometimes to the maximum.
Fig. 8 represents to be suitable for the surge waveform that takes place under the relevant arc contact situation of embodiment 1, and the longitudinal axis is that voltage (p.u.), transverse axis are elapsed time (ns).Fig. 8 represents except that being suitable for arc contact of the present invention, with the surge waveform of the circuit condition generation identical with Fig. 7.
If Fig. 8 and Fig. 7 surge waveform shown in is respectively compared, so as can be known, with effect ratio with arc contact inductance, the waveform of Fig. 8 is more stable, promptly pass through the shocking waveshape of decay surge wave head, can suppress the overvoltage that circuit breaker opens when action take place, and prevent the reduction of insulation property.
Fig. 9 represents the relation of surge voltage to circuit impedance, and the longitudinal axis represents that surge voltage (p.u.), transverse axis represent impedance (Ω).As can be seen from Figure 9, if impedance is made more than 70 (Ω), surge voltage can be suppressed to become below the 2p.u. so; If impedance is made more than 200 Ω, so, surge voltage can be suppressed to become below the 1.5p.u..2p.u. meaning the voltage to earth peak value is 2 times of working voltage,, by set the inductance of the impedance that is applicable to arc contact than the highland, can lower surge voltage that is.
As mentioned above, the circuit breaker that embodiment 1 is correlated with, one of the arc contact 3A shape with the coil that becomes inductance is constituted, become the structure that only in arc contact 3A on-off action, flows through electric current, in view of the above, realize that the inductance effect that surge lowers only works, and therefore, can suppress the high frequency surge voltage effectively in the open circuit action that surge easily takes place.
In addition, because coil portion 22 is configured in arc contact 3A, so, being set at the situation ratio of elsewhere with the mechanism that will suppress surge, circuit breaker can not maximized, make and realize surge attenuating effect, guarantee that insulation property become possibility.
In addition,,, invention (hereinafter referred to as the conventional example) ratio of inductance coil is set, also has useful effect with aforesaid patent documentation 2 relevant connecting at radome at point as follows according to the present invention.
Figure 10 is the figure of the comparison of expression arc contact current potential of the present invention and radome current potential, and the longitudinal axis represents that related potential (p.u.), the transverse axis at each position represent impedance (Ω).Suppose that impedance is 100 Ω, the arc contact current potential is about 1.75p.u. relatively, and the radome current potential is 1.3p.u.; If the supposition impedance is 200 Ω, so, the arc contact current potential is 1.5p.u. relatively, and the radome current potential is 1.25p.u..
That is, with the part ratio of the arc contact 3A that electric arc takes place, the radome current potential of fixation side radome 6a reduces greatly, and particularly, the voltage that the high frequency surge takes place when being used for arcing again reduces significantly.Because arc contact 3A is present in the inboard of fixation side radome 6a, so even the arc contact current potential is high, screen potential also can reduce inductive part, by guaranteeing this fixation side radome 6a and over the ground insulation property, can satisfy the high voltage portion and the insulation property of (ground connection) over the ground.
In addition, in the prior embodiment, electric arc is in direct radome arcing, so the radome current potential becomes high frequency surge generation current potential, therefore, radome and over the ground between insulation property need fully guarantee.
In view of the above, the circuit breaker that embodiment 1 is relevant, can with the conventional example ratio, the current potential that will put on fixation side radome 6a lowers, thereby guarantees insulation property.In addition, the insulation distance from fixation side radome 6a to Kingsoft container 1 can be shortened, also can make the reduced of canister 1, therefore,, also can make the further miniaturization of canister 1 with the conventional example ratio.
In addition, the circuit breaker that embodiment 1 is correlated with, owing to do not light electric arc at fixation side radome 6a, so, can be with the formation fixation side radome 6a such as electric conducting material aluminium of cheapness.On the contrary, as conventional example, make under the situation that electric arc lights at radome, can not constitute radome with cheap electric conducting materials such as aluminium, need to use the few precious metal material of fusion, therefore, embodiment 1 relevant circuit breaker can reduce manufacturing cost than conventional example.
In addition, the circuit breaker that embodiment 1 is relevant is not owing to light electric arc at fixation side radome 6a, so, can cover fixation side radome 6a with insulating material.On the contrary, under the situation of conventional example, even cover radome, because radome is exposed to electric arc, so covering is melted, can loses coverage effect in short-term with insulating material.
Figure 11 is the comparison diagram that expression has the insulation breakdown voltage of electrodeless covering generation, and here, using epoxy as cladding material is insulating material, and the insulation of implementing hundreds of microns of thickness covers.As can be seen from Figure 11, under chlamydate situation, with the situation ratio that does not have to cover, insulation breakdown voltage rises about 20%, promptly, have under the situation that insulation covers at the fixation side radome 6a of Fig. 1 and movable side radome 6b, with the situation ratio that insulation not covers, interelectrode distance and over the ground between distance can reduce about 20%.
The circuit breaker that embodiment 1 is correlated with can be realized the raising of insulation property at this point and conventional example ratio, and, can further shorten insulation distance from fixation side radome 6a to canister 1, therefore, the diameter of canister can further dwindle.
Below, based on Figure 12 second embodiment of the circuit breaker that the present invention is correlated with being described, the parts identical with Fig. 1 are given same label, omit detailed explanation.
Figure 12 is the amplification profile diagram of the fixation side of the relevant circuit breaker of embodiment 2, the feature of this structure is, at arc contact coil is not set, and coil spring 16 is set at arc contact 3B and 7 of fixation side conductors, flow through electric current at this coil spring 16, promptly be characterised in that, adopt and to flow through electric current, the structure of having an effect as the inductance that becomes surge attenuating effect by coil spring 16 when surge takes place.
In this case, be used to make arc contact 3B to constitute with insulating material at the movable support frame 15B of direction of principal axis, thereby do not flow through electric current, when the open circuit action, 8 of fixation side conductor 7 and movable side neck shape conductors, electric current flowing through coil spring 16, arc contact 3B, moving element 2, movable side contacts element 5b in view of the above, can lower the surge of generation.
The formation that embodiment 2 is correlated with, make manufacturings of to be connected in series mutually, i.e. embodiment 2 structure of being correlated with arc contact 3B and coil spring 16 is independent respectively, the structure that self has coil portion 22 with arc contact 3A as embodiment 1 is compared, can easier manufacturing.Therefore, except having the effect structure of embodiment 1, also has the effect that manufacturing cost is cut down, the worker ordinal number reduces.
Below, based on Figure 13 the 3rd embodiment of the circuit breaker that the present invention is correlated with being described, the parts identical with Fig. 1 are given same label, omit detailed explanation.
The structure of embodiment 3 shown in Figure 13 is compared with the structure of previous embodiment 2, it is characterized in that, omits and support frame 15B, becomes the structure that arc contact 3C has only coil spring 16 to support.
Support frame 15B by omitting, arc contact 3C that can embodiment 3 is relevant and the length setting that coil spring 16 has added be the arc contact 3B relevant with embodiment 2 length about equally, in view of the above, structure that embodiment 3 is correlated with and the structure ratio of embodiment 2 can be with arc contact 3C, fixation side contact element 5a, fixation side radome 6a contraction in lengths separately.Its result can be with the axial contraction in length of canister 1.
In addition, support frame 15B,, component number, worker ordinal number and manufacturing cost all can be cut down with embodiment 2 dependency structures ratio by omitting.And the structure of embodiment 3 also can be provided with depression at the leading section of moving element 2, with can fixed arc contact 3C.In view of the above, support frame 15B, arc contact 3C and moving element 2 period of contact that arc contact 3C is moved on the central shaft of moving element 2 reliably even omit.What the shape of depression was more satisfactory is to have the shape that is used for any curvature of the electric field in this bight buffering.
Below, based on Figure 14 the 4th embodiment of the circuit breaker that the present invention is correlated with being described, the parts identical with Fig. 1 are given same label, omit detailed explanation.The structure of Figure 14 is characterised in that 3D is provided with magnetic at arc contact.
Figure 15 is the amplification profile diagram of the arc contact 3D of the relevant circuit breaker of embodiment 4.This arc contact 3D is made of the conductor 26 of electric arc arcing portion 21, magnetic body 25, contact site 23 and connection electric arc arcing portion 21 and contact site 23.When lighting electric arc in electric arc arcing portion 21 during switching, electric current is through electric arc arcing portion 21, conductor 26, contact site 23 and supporting frame 15C and 7 circulations of fixation side conductor.
Can enumerate iron, ferrite, silicon steel plate etc. as the high material of magnetic body 25 employed magnetic susceptibilities, illustrated by with the part of these material configuration just as embodiment 1-3 at arc contact 3D, can expect the effect identical with inductance.
In addition, the structure that embodiment 4 is relevant, by magnetic body 25 is be configured in cylindricly conductor 26 around, can easily make.Embodiment 4 relevant structures are compared with the structure of embodiment 1-3, also have the effect of easy manufacturing, in addition, can also seek the minimizing of manufacturing process.
Claims (4)
1. circuit breaker has separating with the insulating barrier that has center conductor respectively and enclose in the closed container of insulating gas: the fixation side conductor is installed on the center conductor of a side insulating barrier; The fixation side contact element is connected with described fixation side conductor; Arc contact is installed on the inboard of described fixation side contact element; The fixation side radome surrounds described fixation side contact element and disposes; Moving element, going ahead of the rest when contacting with described fixation side contact element and described arc contact, before opening a way with described arc contact disconnects from described fixation side contact element; And hunting gear, described arc contact hunting shaft direction when described moving element disconnects is moved, it is characterized in that having the connect inductance of insertion of between the electric arc arcing portion of described arc contact and described fixation side conductor electricity.
2. the described circuit breaker of claim 1 is characterized in that, described hunting gear by spring, and movably support described spring and the support frame that is electrically connected with described arc contact and described fixation side contact element to constitute freely.
3. claim 1 or 2 described circuit breakers is characterized in that, described inductance is the coil portion that conductor is wound into coiled type.
4. circuit breaker is being separated with the insulating barrier that has center conductor respectively and enclosed in the closed container of insulating gas, is constructed as follows parts: the fixation side conductor is installed on the center conductor of a side insulating barrier; The fixation side contact element is connected with described fixation side conductor; Arc contact is installed on the inboard of described fixation side contact element; The fixation side radome surrounds described fixation side contact element and disposes; Moving element, going ahead of the rest when contacting with described fixation side contact element and described arc contact, before opening a way with described arc contact disconnects from described fixation side contact element; Spring is followed at direction of principal axis described arc contact and is moved when described moving element disconnects; And support frame, movably support described spring freely and be electrically insulated from described arc contact and described fixation side contact element, it is characterized in that, described spring as electricity between the electric arc arcing portion of arc contact and described fixation side conductor connect insertion inductance and work.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009-207929 | 2009-09-09 | ||
| JP2009207929A JP5434406B2 (en) | 2009-09-09 | 2009-09-09 | Disconnector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102024610A true CN102024610A (en) | 2011-04-20 |
Family
ID=43865786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010274380XA Pending CN102024610A (en) | 2009-09-09 | 2010-09-07 | Circuit breaker |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP5434406B2 (en) |
| KR (1) | KR101072518B1 (en) |
| CN (1) | CN102024610A (en) |
| TW (1) | TWI421893B (en) |
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| CN101226846A (en) * | 2007-01-16 | 2008-07-23 | 日本Ae帕瓦株式会社 | Gas-insulated switch |
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| JPH0392334U (en) * | 1990-01-09 | 1991-09-19 | ||
| JPH04332416A (en) * | 1991-05-08 | 1992-11-19 | Hitachi Ltd | Gas disconnector and gas insulating switch device |
| JPH05342952A (en) * | 1992-06-04 | 1993-12-24 | Mitsubishi Electric Corp | Gas insulation switching device |
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- 2009-09-09 JP JP2009207929A patent/JP5434406B2/en active Active
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2010
- 2010-09-01 TW TW99129384A patent/TWI421893B/en active
- 2010-09-07 CN CN201010274380XA patent/CN102024610A/en active Pending
- 2010-09-08 KR KR1020100087837A patent/KR101072518B1/en active IP Right Grant
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| JPS6441130A (en) * | 1987-08-06 | 1989-02-13 | Toshiba Corp | Gas insulated electric apparatus |
| JPH04179017A (en) * | 1990-11-14 | 1992-06-25 | Tokyo Electric Power Co Inc:The | Vacuum switch with current limiting element |
| CN1901124A (en) * | 2005-07-21 | 2007-01-24 | 日本Ae帕瓦株式会社 | Gas insulation switch |
| CN101226846A (en) * | 2007-01-16 | 2008-07-23 | 日本Ae帕瓦株式会社 | Gas-insulated switch |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103022928A (en) * | 2012-12-28 | 2013-04-03 | 中国西电电气股份有限公司 | Contact double-shielding structure |
| CN103022928B (en) * | 2012-12-28 | 2015-07-29 | 中国西电电气股份有限公司 | A kind of contact double shield structure |
| CN104919557A (en) * | 2013-01-14 | 2015-09-16 | 阿尔斯通技术有限公司 | Breaker having a rotating-arc contact |
| CN104919557B (en) * | 2013-01-14 | 2017-09-01 | 通用电气技术有限公司 | Breaker with rotating the arc contact |
| CN111758142A (en) * | 2018-03-06 | 2020-10-09 | 株式会社日立产机系统 | switch |
| CN113454740A (en) * | 2019-02-27 | 2021-09-28 | 三菱电机株式会社 | Contact, method for manufacturing contact, circuit breaker, and switch |
| CN113012973A (en) * | 2021-02-26 | 2021-06-22 | 西安西电开关电气有限公司 | Isolating switch with high-current switching-on and switching-off capacity |
| CN113328423A (en) * | 2021-06-01 | 2021-08-31 | 曾怀勇 | Surge protector for high-voltage power |
| CN113328423B (en) * | 2021-06-01 | 2022-11-08 | 国网湖北省电力有限公司超高压公司 | Surge protector for high-voltage power |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2011060535A (en) | 2011-03-24 |
| KR101072518B1 (en) | 2011-10-11 |
| KR20110027604A (en) | 2011-03-16 |
| TWI421893B (en) | 2014-01-01 |
| JP5434406B2 (en) | 2014-03-05 |
| TW201120932A (en) | 2011-06-16 |
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