CN201562620U - Outdoor circuit breaker with dual-power lead-in function - Google Patents
Outdoor circuit breaker with dual-power lead-in function Download PDFInfo
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- CN201562620U CN201562620U CN2009202720425U CN200920272042U CN201562620U CN 201562620 U CN201562620 U CN 201562620U CN 2009202720425 U CN2009202720425 U CN 2009202720425U CN 200920272042 U CN200920272042 U CN 200920272042U CN 201562620 U CN201562620 U CN 201562620U
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- circuit breaker
- insulating sleeve
- power supply
- isolating
- entering line
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Abstract
The utility model provides an outdoor circuit breaker with dual-power lead-in function, comprising three groups of insulating rods which are distributed by three-phase on a cabinet. The insulating rods comprise an insulating sleeve, a vacuum arc extinguishing chamber and a disconnecting/connecting pull rod which are arranged in the insulating sleeve; the upper part of the disconnecting/connecting pull rod is connected with a movable contact in the vacuum arc extinguishing chamber and the lower part thereof with a breaker driving mechanism. The utility model is characterized in that the insulating sleeve is provided with a wire outlet end and two wire inlets; each of the wire inlets is provided with an isolating switch; one end of an isolating cutter of the isolating switch is hinged with each enter-wire end, and the other end thereof with the two wire inlets in a connection or disconnection state. The circuit breaker having used the solid sealed insulation technique and the pressure gel production process, and the air insulation, the utility model has the advantages of simple structure, less main conductive loop connection points, high reliability and the like. The breaker and the isolating switch are equipped with a compulsory mechanical locking device, thereby preventing the wrong operation.
Description
Technical field
The utility model is about a kind of outdoor circuit breaker, especially a kind of outdoor circuit breaker with power supply entering line function.
Background technology
Outdoor pole vacuum circuit breaker is mainly used in overhead transmission line and outdoor substation, existing outdoor vacuum circuit breaker mostly is the single turnover line structure of one-in-and-one-out, discloses a kind of " vacuum circuit-breaker " with one-in-and-one-out line structure as the 200720169709.X Chinese patent.This vacuum circuit-breaker has a casing, three groups of insulated columns that distribute by three-phase are arranged on the described casing, described insulated column comprises insulating sleeve, be provided with vacuum interrupter in it, wherein, described insulating sleeve is a monolithic construction, described vacuum interrupter is arranged on the top of insulating sleeve, the bottom of each insulating sleeve is equipped with the divide-shut brake pull bar, and the bottom of described divide-shut brake pull bar is connected with the moving contact of vacuum interrupter, and the bottom that divide-shut brake draws is connected with the circuit breaker driving mechanism; The periphery wall of described vacuum interrupter and the internal perisporium of described insulating sleeve are closely linked by fixed sealing material; And described insulating sleeve is provided with stiff end and leading-out terminal, and described stiff end and leading-out terminal are respectively equipped with isolating switch.
When needs adopted power supply entering line, above-mentioned known vacuum circuit-breaker just can't meet the demands, and must adopt the parallel running of two same model vacuum circuit-breakers, so caused power network line complexity, reliability is low and cost is high shortcoming.In addition, normally used in cable system possess several several ring main units that go out function that advance, because volume is big, the installation that is unsuitable on the outdoor post is used.
In addition, Figure 11 is the solid seal structure of a kind of insulation of known vacuum circuit-breaker, as shown in figure 11, this known configurations mainly comprises 4 major parts, be respectively: insulating sleeve 12, be arranged on the vacuum interrupter 13 in the insulating sleeve 12, be locked in the vacuum interrupter hold-down nut 14 at insulating sleeve 12 tops, and be arranged on the insulating cement 11 between vacuum interrupter 13 and the insulating sleeve 12.This structure is after being fixed on vacuum interrupter 13 in the insulating sleeve 12 by vacuum interrupter hold-down nut 14, from the opening portion of insulating sleeve 12 insulating cement 11 is filled between vacuum interrupter 13 and the insulating sleeve 12, through behind the certain hour, insulating cement 11 begins to solidify, be closely linked with insulating sleeve 12 and vacuum interrupter 13, play the effect of solid envelope insulation.Though the solid seal structure integral arrangement of described known insulation is reasonable, volume is little, but insulating cement 11 is an overall structure, when being subjected to the environmental impact of high temperature or low temperature, because insulating cement 11, insulating sleeve 12 is three kinds of different materials with vacuum interrupter 13, the constriction coefficient of material is different in the change procedure of high temperature and low temperature, therefore will be at insulating cement 11, insulating sleeve 12 and vacuum interrupter 13 form small slit at the interface, in the process of using, alternate through multiple high temp and low temperature, described small slit will be linked to be a line, thereby cause insulation breakdown, form short circuit, thereby influence the use of product.
Therefore, there is following defective in the solid seal structure of the insulation of known circuit breaker:
1. problem of temperature rise: because switchgear can produce temperature when operation, add extraneous intrinsic temperature,, can cause the rising of these parts temperature so the insulating cement heat radiation of solid envelope insulation is bad, the conduction contact resistance increases, and the insulating cement back expansion of being heated can make the insulating sleeve cracking.
2. the cracking problem of insulating sleeve: the solid encapsulation technique of insulation is realized the insulating sleeve that the whole airtight all-in-one-piece epoxy resin of the primary conductive part of circuit breaker form by press, be subjected to the insulating sleeve that influences of ambient pressure to be easy to cracking.
3. interface Insulation Problems: because insulating sleeve is made by epoxy resin, vacuum interrupter is made by pottery, be filled with insulating cement between the two, therefore the solid seal structure of the insulation of known vacuum circuit-breaker is made of epoxy resin, three kinds of different materials of pottery and insulating cement, and the interface that these three kinds of materials form is because constriction coefficient is different, when variations in temperature, can produce the gap, thereby cause the decline of insulation effect, insulation will be breakdown after long-time the use, had a strong impact on the useful life of circuit breaker, and the fail safe of equipment operation.
The utility model content
The purpose of this utility model provides a kind of outdoor circuit breaker, and especially a kind of mutual latch-up problem that can solve power supply entering line effectively improves the outdoor circuit breaker with power supply entering line function of circuit breaker insulation property.
For this reason, the outdoor circuit breaker that the utility model proposes with power supply entering line function, having three groups of insulated columns that distribute by three-phase is arranged on the casing, described insulated column comprises insulating sleeve, and is arranged on vacuum interrupter and divide-shut brake pull bar in the described insulating sleeve, and the indoor moving contact of the top of described divide-shut brake pull bar and vacuum extinction is connected, the bottom is connected with the circuit breaker driving mechanism, wherein, described insulating sleeve is provided with leading-out terminal, and two ends of incoming cables; Each described end of incoming cables is respectively equipped with isolating switch, and isolation knife one end of described isolating switch is articulated in described each end of incoming cables, and the other end can be communicated with two lead-in line rows respectively or be connected with disconnecting.
Above-mentioned outdoor circuit breaker with power supply entering line function, wherein, the middle part of described isolation knife is articulated and connected by a connecting rod and operating grip, and described operating grip can be connected with described casing rotationally.
Above-mentioned outdoor circuit breaker with power supply entering line function, wherein, described isolating switch also is provided with mechanical locking device, described mechanical locking device comprises the isolating-switch locking plate, described isolating-switch locking plate is provided with an elongated slot, described elongated slot is set on the guide rod that is convexly equipped with on the described casing, and described isolating-switch locking plate one end is connected with described operating grip by control lever, and the other end can be connected to the circuit breaker closing locking bar.
Above-mentioned outdoor circuit breaker with power supply entering line function, wherein, the latch plate of a described isolating switch is near described casing setting, the latch plate of another described isolating switch is away from described casing setting, and the other end of two described isolating-switch locking plates can be connected to the both sides of described circuit breaker closing locking bar respectively.
Above-mentioned outdoor circuit breaker with power supply entering line function, wherein, the both ends of described vacuum interrupter are arranged with sealing ring and lower seal respectively, and the outer peripheral face of described upper and lower sealing ring is fixedlyed connected with the internal face of described insulating sleeve; Be full of electrical apparatus insulation fat between the outside wall surface of described vacuum interrupter and the internal face of described insulating sleeve.
Above-mentioned outdoor circuit breaker with power supply entering line function, wherein, described upper and lower sealing ring all has the holding part of an indent, the shape at the shape of described holding part and described vacuum interrupter both ends is complementary, the end of the sidewall that forms between described holding part and the described upper and lower sealing ring outer peripheral face is provided with a ring groove, and the openend of described groove is identical with the openend direction of described holding part.
The above-mentioned outdoor circuit breaker with power supply entering line function, wherein, adhering and sealing is fixed between the outer peripheral face of described upper and lower sealing ring and the inwall of described insulating sleeve.
The above-mentioned outdoor circuit breaker with power supply entering line function, wherein, described electrical apparatus insulation fat volume at normal temperatures is less than the volume sum between the groove of described upper and lower sealing ring, described vacuum interrupter and the described insulating sleeve.
Above-mentioned outdoor circuit breaker with power supply entering line function, wherein, described insulating sleeve is a hollow column, its top is provided with the leading-out terminal connector that is connected with described insulating sleeve inside, lateral wall is provided with two end of incoming cables projections that are connected with described insulating sleeve inside respectively, is equipped with current transformer in each described end of incoming cables projection.
Above-mentioned outdoor circuit breaker with power supply entering line function, wherein, described end of incoming cables projection is symmetricly set on the lateral wall of described insulating sleeve, be respectively equipped with the through hole of the orthogonal axe of center line and described insulating sleeve in two described end of incoming cables projections, the iron core of described current transformer is arranged in the periphery wall of described through hole, the center line of described current transformer and the axis normal of described insulating sleeve, the lead-out wire of described current transformer are drawn from the sidewall bottom of described insulating sleeve respectively.
In summary, the outdoor circuit breaker with power supply entering line function that the utility model proposes has the following advantages:
The utility model reasonable in design, good looking appearance, volume is little, reliability is high, has filled up domestic blank; Tank material adopts stainless steel material to make antirust, long service life.
2. the utility model is incorporated into the technology of cable system ring main unit on the outdoor pole vacuum circuit breaker and uses, and has solved power supply entering line problem on the outdoor post.Circuit breaker adopts and to seal insulation technology and pressure gel production technology admittedly, utilizes air insulation, solved and utilized SF6 as gas leakage and environmental issue that external insulation brought, and have simple in structure, the main conductive circuit tie point is few, characteristics such as reliability height.In addition, the utility model production, assembly technology optimization, the efficient height is a kind of non-maintaining, environmentally friendly machine.
3. insulation column profile of the present utility model adopts airflow design, and the lines flow smoothly, elegant in appearance; Reasonable in design, outside full skirt antifouling property is good, and it is good that inner umbrella skirt construction designs anti-condensation performance.Adopt outdoor resin material and APG technology, the technological level height, anti-aging, anti-ultraviolet property is strong.
4. the design of the utility model circuit breaker and isolating switch has enforceable mechanical locking device, can prevent misoperation.
Description of drawings
The following drawings only is intended to the utility model done and schematically illustrates and explain, does not limit scope of the present utility model.Wherein,
Fig. 1 is that the master who the utlity model has the outdoor circuit breaker of power supply entering line function looks schematic diagram;
Fig. 2 is the schematic side view that the utlity model has the outdoor circuit breaker of power supply entering line function;
Fig. 3 is the cross-sectional schematic of insulating sleeve of the present utility model;
Fig. 4 is the solid seal structure cross-sectional schematic of insulation with outdoor circuit breaker of power supply entering line function of the present utility model;
Fig. 5 A, Fig. 5 B are the ring structure schematic diagram of the vacuum interrupter of the outdoor circuit breaker with power supply entering line function of the present utility model, and wherein, Fig. 5 A mainly looks schematic diagram, and Fig. 5 B is a cross-sectional schematic;
Fig. 6 is the confined state cross-sectional schematic of insulating sleeve of the present utility model;
The blocking master of A, B end inlet wire isolating switch looked schematic diagram when Fig. 7 was in "on" position for the outdoor circuit breaker with power supply entering line function of the present utility model;
The blocking schematic top plan view of A, B end inlet wire isolating switch when Fig. 8 is in "on" position for the outdoor circuit breaker with power supply entering line function of the present utility model, A, B end inlet wire isolating switch all is in connected state;
Fig. 9 looks schematic diagram for the blocking master of the outdoor circuit breaker with power supply entering line function of the present utility model A, B end inlet wire isolating switch when being in gate-dividing state, and wherein one of them connection of A, B end inlet wire isolating switch, another is off-state;
The blocking schematic top plan view of A, B end inlet wire isolating switch when Figure 10 is in "on" position for the outdoor circuit breaker with power supply entering line function of the present utility model;
Figure 11 is the solid seal structure of a kind of insulation of known vacuum circuit-breaker.
Embodiment
Understand for technical characterictic of the present utility model, purpose and effect being had more clearly, now contrast description of drawings embodiment of the present utility model.
Fig. 1 is that the master who the utlity model has the outdoor circuit breaker of power supply entering line function looks schematic diagram, Fig. 2 is the schematic side view that the utlity model has the outdoor circuit breaker of power supply entering line function, Fig. 3 is the cross-sectional schematic of insulating sleeve of the present utility model, Fig. 4 is the solid seal structure cross-sectional schematic of insulation with outdoor circuit breaker of power supply entering line function of the present utility model, Fig. 5 A, Fig. 5 B is the ring structure schematic diagram of the vacuum interrupter of the outdoor circuit breaker with power supply entering line function of the present utility model, wherein, Fig. 5 A is the main schematic diagram of looking, Fig. 5 B is a cross-sectional schematic, and Fig. 6 is the confined state cross-sectional schematic of insulating sleeve of the present utility model.
As Fig. 1-shown in Figure 6, the outdoor circuit breaker that the utility model proposes with power supply entering line function, having three groups of insulated columns that distribute by three-phase is arranged on the casing 9, described insulated column 1 comprises insulating sleeve 2, and be arranged on vacuum interrupter 3 and divide-shut brake pull bar 4 in the described insulating sleeve 2, wherein, vacuum interrupter 3, divide-shut brake pull bar 4 are separately positioned on the upper and lower of insulating sleeve 2, the top of described divide-shut brake pull bar 4 is connected with the moving contact of vacuum extinction indoor 3, and the bottom is connected with circuit breaker driving mechanism 6.
See also Fig. 2, Fig. 3, described insulating sleeve 2 is provided with leading-out terminal 20, and two end of incoming cables projections 22,23; Described end of incoming cables projection 22,23 is respectively equipped with isolating switch 5a, 5b, and wherein, the end of isolation knife 51a, the 51b of described isolating switch 5a, 5b is articulated in described end of incoming cables projection 22,23 respectively, and the other end can be communicated with two lead-in line rows 71,72 respectively or disconnect.Described isolation knife 51a, 51b are hinged and connected with operating grip 53a, 53b respectively by a connecting rod 52a, the 52b that its middle part is provided with, and described operating grip 53a, 53b can be connected with described casing 9 rotationally by rotation axis 55a, 55b.As shown in Figure 2, described isolating switch 5a, be provided with mechanical locking device 54a between 5b and the circuit breaker, 54b, described mechanical locking device 54a, 54b includes isolating-switch locking plate 541a respectively, 541b, described isolating-switch locking plate 541a, be respectively equipped with an elongated slot 542a on the 541b, 542b, this elongated slot 542a, 524b is set in respectively on two guide rods 91 that are convexly equipped with on the described casing 9, and two isolating- switch locking plate 541a, 541b one end is respectively by control lever 543a, 543b and described operating grip 53a, 53b is connected, in the present embodiment, described control lever 543a, the end of 543b and described operating grip 53a, 53b all is connected in described rotation axis 55a, 55b, described two isolating-switch locking plate 541a, the other end of 541b can be connected to the both sides of circuit breaker closing locking bar 41 respectively.Wherein, the latch plate 541a of isolating switch 5a is provided with near described casing 9, the latch plate 541b of isolating switch 5b is provided with away from described casing 9, at blocking, the deadlock lever 41 of described circuit breaker extends between two isolating-switch locking plate 541a, the 541b of described casing 9 outsides, and two isolating switch 5a, the 5b of end of incoming cables A, B can not carry out separating brake.
Continue and see also Fig. 3, insulating sleeve 2 of the present utility model is the hollow form cylinder, its top is provided with leading-out terminal connector 21, lateral wall is provided with two end of incoming cables projections 22,23, and above-mentioned leading-out terminal connector 21, end of incoming cables projection 22,23 are connected with insulating sleeve 2 inside respectively, are equipped with current transformer 24 in the described end of incoming cables projection 22,23.Wherein, on the lateral wall that is arranged on described insulating sleeve 2 of described two end of incoming cables projection 22,23 symmetries, its inside is respectively equipped with the through hole 221,231 of the axes O O ' quadrature of center line AA ' and described insulating sleeve 2.And the iron core of described current transformer 24 is arranged in the periphery wall of corresponding described through hole 221,231, and the center line of current transformer 24 is vertical with the axes O O ' of described insulating sleeve 2, and its lead-out wire 241,242 is drawn from the sidewall bottom of described insulating sleeve 2 respectively.Wherein, the end of described end of incoming cables projection 22,23 is respectively equipped with the holding part 222,232 of indent.The insulating sleeve of the present utility model 2 preferred outdoor epoxide resin materials of import hydrophobicities that adopt, with pressure gel APG explained hereafter, this method technological level height, anti-aging, uvioresistant performance good.
Be equipped with full skirt on the described insulative 2 inside and outside sidewalls, described full skirt can be the equal diameter full skirt, or is made of major diameter full skirt and minor diameter full skirt, and major diameter full skirt and the setting of minor diameter full skirt alternate intervals.In the present embodiment, as shown in Figure 3, the full skirt 25 ' on the madial wall is the equal diameter full skirt, and this umbrella skirt construction has anti-condensation preferably performance; And the full skirt 25 on the lateral wall comprises major diameter full skirt 251 and minor diameter full skirt 252, and major diameter full skirt 251 and minor diameter full skirt 252 are provided with along the lateral wall alternate intervals of insulating sleeve 2, so design, increased the insulation distance of outer surface, be applicable to outdoor operation, have antifouling property preferably.
The insulating sleeve that the utility model proposes, by two end of incoming cables projections are set on lateral wall, can on circuit breaker, form two ends of incoming cables, realized two inlet wire functions, and can two ends of incoming cables all be connected with isolating switch, therefore when improving the insulating sleeve structure according to the needs that reality is used, expanded the additional function of insulating sleeve, realize the combination of multiple function, expanded the scope of application of circuit breaker, and be specially adapted to the vacuum circuit-breaker on the outdoor post of 10kV.In addition, this insulating sleeve profile adopts airflow design, and integral arrangement is reasonable, elegant in appearance, volume is little, cost is low, reliability is high.
Please cooperate referring to Fig. 4, the solid seal structure of insulation with outdoor circuit breaker of power supply entering line function of the present utility model cuts open and shows schematic diagram.Described vacuum interrupter 3 is arranged in the described insulating sleeve 2, terminals of vacuum interrupter 3 are by leading-out terminal connector 21, extend to the outside of insulating sleeve 2, to link to each other with outlet conducting rod 20, moving contact in the described vacuum interrupter 3 is connected with the top of divide-shut brake pull bar 4, and described vacuum interrupter 3 fixes vacuum interrupter 3 and insulating sleeve 2 by hold-down nut 34.Wherein, be arranged with sealing ring 32 and lower seal 33 respectively at the both ends of described vacuum interrupter 3, the outer peripheral face 321,331 of described upper and lower sealing ring 32,33 is fixedlyed connected with the internal face of described insulating sleeve 2 respectively.Be full of electrical apparatus insulation fat 31 between the internal face of the outside wall surface of described vacuum interrupter 3 and described insulating sleeve 2.Wherein, No. 6901 electrical apparatus insulation fat of described electrical apparatus insulation fat 31 preferred employings, this electrical apparatus insulation fat 21 is liquid, does not solidify.
Shown in Fig. 5 A, 5B, described upper and lower sealing ring 32,33 all has the holding part 322,332 of an indent, the shape at the shape of described holding part 322,332 and described vacuum interrupter 3 both ends is complementary, closely on the both ends of fit vacuum interrupter 3.The end of the sidewall that forms between described holding part 322,332 and described upper and lower sealing ring 32,33 outer peripheral faces 321,331 is provided with a ring groove 323,333, and the openend of described groove 323,333 is identical with the openend direction of holding part 322,332.And between the outer peripheral face 321,331 of described upper and lower sealing ring 32,33 and the inwall of described insulating sleeve 2 by the gluing sealing and fixing that connects.Described upper and lower sealing ring 32,33 adopts the high quality silicon elastomeric materials by compression molding, and certain elasticity is arranged, and does not have aging, corrosion resistant characteristics, and the groove of the end setting of its sidewall 323,333 is interior can to hold described electrical apparatus insulation fat 31.
Under the normal temperature state, the volume that is filled in the electrical apparatus insulation fat 31 between described vacuum interrupter 3 and the insulating sleeve 2 is less than the volume sum between groove 323,333, vacuum interrupter 3 and the insulating sleeve 2 of described upper and lower sealing ring 32,33.
The solid seal structure of above-mentioned insulation adopts electrical apparatus insulation fat as the solid envelope dielectric between vacuum interrupter and the insulating sleeve, can be in intact state all the time with the faying face of its vacuum interrupter and insulating sleeve, also can not produce the defective in small slit after the variations in temperature, improve the product reliability of operation; On the side wall ends of upper and lower sealing ring, offer groove, can store the electrical apparatus insulation fat of expanded by heating, and technology is simple, reliability is high, at the bottom of the cost.
Please cooperate referring to Fig. 6 the confined state cross-sectional schematic of insulating sleeve of the present utility model.As we know from the figure, two conducting rods 26 can pass the through hole 221,231 in two the end of incoming cables projections 22,23 that are provided with on insulating sleeve 2 lateral walls respectively, stretch in the hollow cavity of insulating sleeve 2, and 28 be connected with being flexible coupling by connecting bolt 27 respectively, described be flexible coupling 28 be connected to the bottom of vacuum interrupter 3 via conductive clip 29, by vacuum interrupter 3, be connected to outlet conducting rod 20 again, form the galvanic circle of duplicate supply.The composition and the technique known of other design of part of the present utility model, assembling technology procedure, galvanic circle are close, no longer describe in detail herein.The circuit breaker overall structure of above-mentioned connection is simple, solved power supply entering line problem on the outdoor post, and the main conductive circuit tie point is few, the reliability height.
Described circuit breaker driving mechanism adopts permanent magnet mechanism 6, and drives by transmission mechanism 8 that divide-shut brake pull bars 4 are realized closing, separating brake moves wherein, and this technology is a prior art, does not repeat them here.Wherein, circuit breaker closing locking bar 41 links to each other with the transmission mechanism 8 of circuit breaker, when circuit breaker closes, circuit breaker closing locking bar 41 is also done corresponding displacement during sub-switching operation.When the breaker closing state, it is outside between two isolating-switch locking plate 541a, the 541b of described casing 9 outsides that circuit breaker closing locking bar 41 stretches out casing 9, during the breaker open operation state, circuit breaker closing locking bar 41 is thrown off to two isolating-switch locking plate 541a, the 541b of casing 9 retractions with described casing 9 outsides.
The blocking master of A, B end inlet wire isolating switch looked schematic diagram when Fig. 7 was in "on" position for the outdoor circuit breaker with power supply entering line function of the present utility model; A, B end inlet wire isolating-switch locking state schematic top plan view when Fig. 8 is in "on" position for the outdoor circuit breaker with power supply entering line function of the present utility model, A, B end inlet wire isolating switch all is in connected state; The blocking master of A, B end inlet wire isolating switch looked schematic diagram when Fig. 9 outdoor circuit breaker with power supply entering line function of the present utility model was in gate-dividing state, and wherein one of them connection of A, B end inlet wire isolating switch, another is off-state; The blocking schematic top plan view of A, B end inlet wire isolating switch when Figure 10 is in "on" position for the outdoor circuit breaker with power supply entering line function of the present utility model.
Outdoor circuit breaker with power supply entering line function of the present utility model, as Fig. 7, shown in Figure 8, when isolating switch 5a, 5b are communicated with the lead-in line row 71,72 of A, B end respectively, circuit breaker is in "on" position, at this moment, as shown in Figure 8, it is outside between two isolating-switch locking plate 541a, the 541b of described casing 9 outsides that circuit breaker closing locking bar 41 reaches casing 9, promptly, the isolating-switch locking plate 541a of mechanical locking device 54a, 54b, the end of 541b are connected to the both sides of circuit breaker closing locking bar 41 respectively.Limited the motion of isolating- switch locking plate 541a, 541b by this circuit breaker closing locking bar 41, operating grip 53a, 53a all can't rotate, therefore when circuit breaker is in "on" position, two isolating- switch locking plate 541a, 541b are all blocked by the circuit breaker closing locking bar 41 of circuit breaker, isolating switch 5a, the 5b of end of incoming cables A, B can not carry out separating brake, thereby guaranteed that isolating switch 5a, 5b can be in connected state with lead-in line row 71,72 all the time.At this moment, have only first separating brake circuit breaker, circuit breaker closing locking bar 41 is broken away from and the contacting of isolating- switch locking plate 541a, 541b, operating grip 53a, 53b could separately drive isolating switch 5a, 5b respectively, the realization opening operation.
See also Fig. 9, Figure 10, represented that circuit breaker is in the state of separating brake, at this moment, circuit breaker closing locking bar 41 is thrown off to casing 9 retraction and with two isolating-switch locking plate 541a, the 541b of described casing 9 outsides, A, B end inlet wire isolating switch can be communicated with arbitrarily, opening operation, and circuit breaker can not carry out closing operation.As shown in the figure, represented in the present embodiment that B end isolating switch 5b is communicated with lead-in line row 72, and the state that A end isolating switch disconnects.Wherein, circuit breaker closing locking bar 41 to casing 9 retraction and with two isolating-switch locking plate 541a, after 541b throws off, moving operating grip 53a rotates counterclockwise operating grip 53a drive rotation axis 55a, then the control lever 543a that is fixed on the described rotation axis 55a of an end rotates counterclockwise with operating grip 53a, the end that the other end of control lever 543a drives connected isolating-switch locking plate 541a is done and is clockwise rotated, isolating-switch locking plate 541a moves along the opposite side of guide rod 91 to casing 9 by the elongated slot 542a that is provided with on it when clockwise rotating, and circuit breaker closing locking bar 41 is blocked in the outside that is positioned at close circuit breaker closing locking bar 41, as shown in figure 10, it can not be stretched out, make circuit breaker can not carry out closing operation.After described operating grip 53a rotated counterclockwise, driving isolation knife 51a by the connecting rod 52a hinged with it simultaneously be that the center is done and rotated counterclockwise with end of incoming cables 22, thereby is connected with lead-in line row 71 disconnections.Same, if need to disconnect B end inlet wire isolating switch, just the direction of motion of operating grip, control lever, isolating-switch locking plate is opposite, its course of action is the same, does not repeat them here.
Therefore, one of them is a connected state when A or B end inlet wire, when perhaps A, B end inlet wire isolating switch all is in off-state, has only earlier isolating switch to be communicated with lead-in line row, remove isolating- switch locking plate 541a or 541b circuit breaker closing locking bar 41 stopped that circuit breaker just can close a floodgate.And isolating switch is opposite with the disconnection process with the connection operating process of lead-in line row, repeats no more.
In sum, the utlity model has the outdoor circuit breaker of power supply entering line function, by circuit breaker and isolating switch design enforceable mechanical locking device is arranged, when single supply inlet wire or power supply entering line, can prevent misoperation, solve the technical problem of the mutual locking of power supply entering line simultaneously.In addition, circuit breaker adopts and seals insulation technology and pressure gel production technology admittedly, utilize air insulation, solved and utilized SF6 as gas leakage and environmental issue that external insulation brought, and have simple in structure, the main conductive circuit tie point is few, characteristics such as reliability height have production, assembly technology optimization, characteristics that efficient is high, are a kind of non-maintaining, environmentally friendly machines.The insulation column profile adopts airflow design, and the lines flow smoothly, elegant in appearance; Outside full skirt antifouling property is good, reasonable in design, and it is good that inner umbrella skirt construction designs anti-condensation performance.Adopt outdoor resin material and APG technology, the technological level height, anti-aging, anti-ultraviolet property is strong.
The above only is the schematic embodiment of the utility model, is not in order to limit scope of the present utility model.Any those skilled in the art, equivalent variations of having done under the prerequisite that does not break away from design of the present utility model and principle and modification all should belong to the scope that the utility model is protected.
Claims (10)
1. outdoor circuit breaker with power supply entering line function, having three groups of insulated columns that distribute by three-phase is arranged on the casing, described insulated column comprises insulating sleeve, and be arranged on vacuum interrupter and divide-shut brake pull bar in the described insulating sleeve, the indoor moving contact of the top of described divide-shut brake pull bar and vacuum extinction is connected, the bottom is connected with the circuit breaker driving mechanism, it is characterized in that: described insulating sleeve is provided with leading-out terminal, and two ends of incoming cables; Each described end of incoming cables is respectively equipped with isolating switch, and isolation knife one end of described isolating switch is articulated in described each end of incoming cables, and the other end can be communicated with two lead-in line rows respectively or be connected with disconnecting.
2. the outdoor circuit breaker with power supply entering line function as claimed in claim 1 is characterized in that the middle part of described isolation knife is articulated and connected by a connecting rod and operating grip, and described operating grip can be connected with described casing rotationally.
3. the outdoor circuit breaker with power supply entering line function as claimed in claim 2, it is characterized in that, described isolating switch also is provided with mechanical locking device, described mechanical locking device comprises the isolating-switch locking plate, described isolating-switch locking plate is provided with an elongated slot, described elongated slot is set on the guide rod that is convexly equipped with on the described casing, and described isolating-switch locking plate one end is connected with described operating grip by control lever, and the other end can be connected to the circuit breaker closing locking bar.
4. the outdoor circuit breaker with power supply entering line function as claimed in claim 3, it is characterized in that, one of them described isolating-switch locking plate is near described casing setting, another described isolating-switch locking plate is away from described casing setting, and the other end of two described isolating-switch locking plates can be connected to the both sides of described circuit breaker closing locking bar respectively.
5. the outdoor circuit breaker with power supply entering line function as claimed in claim 1, it is characterized in that, the both ends of described vacuum interrupter are arranged with sealing ring and lower seal respectively, and the outer peripheral face of described upper and lower sealing ring is fixedlyed connected with the internal face of described insulating sleeve; Be full of electrical apparatus insulation fat between the outside wall surface of described vacuum interrupter and the internal face of described insulating sleeve.
6. the outdoor circuit breaker with power supply entering line function as claimed in claim 5, it is characterized in that, described upper and lower sealing ring all has the holding part of an indent, the shape at the shape of described holding part and described vacuum interrupter both ends is complementary, the end of the sidewall that forms between described holding part and the described upper and lower sealing ring outer peripheral face is provided with a ring groove, and the openend of described groove is identical with the openend direction of described holding part.
7. as claim 5 or 6 described outdoor circuit breakers, it is characterized in that adhering and sealing is fixed between the outer peripheral face of described upper and lower sealing ring and the inwall of described insulating sleeve with power supply entering line function.
8. as claim 5 or 6 described outdoor circuit breakers with power supply entering line function, it is characterized in that described electrical apparatus insulation fat volume at normal temperatures is less than the volume sum between the groove of described upper and lower sealing ring, described vacuum interrupter and the described insulating sleeve.
9. the outdoor circuit breaker with power supply entering line function as claimed in claim 1, it is characterized in that, described insulating sleeve is a hollow column, its top is provided with the leading-out terminal connector that is connected with described insulating sleeve inside, lateral wall is provided with two end of incoming cables projections that are connected with described insulating sleeve inside respectively, is equipped with current transformer in each described end of incoming cables projection.
10. the outdoor circuit breaker with power supply entering line function as claimed in claim 1, it is characterized in that, described end of incoming cables projection is symmetricly set on the lateral wall of described insulating sleeve, be respectively equipped with the through hole of the orthogonal axe of center line and described insulating sleeve in two described end of incoming cables projections, the iron core of described current transformer is arranged in the periphery wall of described through hole, the center line of described current transformer and the axis normal of described insulating sleeve, the lead-out wire of described current transformer are drawn from the sidewall bottom of described insulating sleeve respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202720425U CN201562620U (en) | 2009-12-09 | 2009-12-09 | Outdoor circuit breaker with dual-power lead-in function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202720425U CN201562620U (en) | 2009-12-09 | 2009-12-09 | Outdoor circuit breaker with dual-power lead-in function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201562620U true CN201562620U (en) | 2010-08-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202720425U Expired - Fee Related CN201562620U (en) | 2009-12-09 | 2009-12-09 | Outdoor circuit breaker with dual-power lead-in function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201562620U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102368455A (en) * | 2011-11-09 | 2012-03-07 | 日升集团有限公司 | High-voltage vacuum circuit breaker |
| CN103280371A (en) * | 2013-05-20 | 2013-09-04 | 宁波鑫鑫鑫寅电气有限公司 | Insulating sleeve of outdoor pole-mounted double voltage sensors |
-
2009
- 2009-12-09 CN CN2009202720425U patent/CN201562620U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102368455A (en) * | 2011-11-09 | 2012-03-07 | 日升集团有限公司 | High-voltage vacuum circuit breaker |
| CN102368455B (en) * | 2011-11-09 | 2013-08-28 | 日升集团有限公司 | High-voltage vacuum circuit breaker |
| CN103280371A (en) * | 2013-05-20 | 2013-09-04 | 宁波鑫鑫鑫寅电气有限公司 | Insulating sleeve of outdoor pole-mounted double voltage sensors |
| CN103280371B (en) * | 2013-05-20 | 2015-08-26 | 宁波鑫鑫鑫寅电气有限公司 | A kind of insulating sleeve of Standard type twin voltage transducer |
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Legal Events
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100825 Termination date: 20131209 |