CN102427011B - Fuse wire tube and switch cabinet - Google Patents
Fuse wire tube and switch cabinet Download PDFInfo
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- CN102427011B CN102427011B CN201110440008.6A CN201110440008A CN102427011B CN 102427011 B CN102427011 B CN 102427011B CN 201110440008 A CN201110440008 A CN 201110440008A CN 102427011 B CN102427011 B CN 102427011B
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Abstract
The invention provides a fuse wire tube which comprises a shell with a opening, a cover covering the opening, a fuse and a grounding vacuum arc extinguish chamber; the shell is a solid insulating shell which is cast from epoxy resin by an APG (Automatic Pressure Gelation) molding technology and is provided with an empty cavity; the fuse is arranged in the empty cavity of the shell; the grounding vacuum arc extinguish chamber is fixed and sealed in the shell. From the scheme above, the grounding vacuum arc extinguish chamber provided by the invention is directly fixed and sealed in the solid insulating shell, the insulation performance is not influenced by external environment; and the vacuum arc extinguish chamber is adopted for grounding, thus the fuse wire tube is in vacuum state in grounding and non-grounding conditions, and the grounding is safe and reliable.
Description
Technical field
The present invention relates to electric power system equipment for power transmission and distribution, relate in particular to a kind of switch cubicle that adopts the fuse unit of solid insulation and be equipped with this fuse unit.
Background technology
In existing switch cubicle product, Insulation Scheme is to adopt air insulation and SF6 gas-insulated mostly.Need with air dielectric, to insulate between two objects of mutually insulated, must there is certain safe distance, according to air breakdown distance under the high pressure of power transmission network, alternate, relatively clear distance should be not less than 125mm, this will cause the volume ratio of switch cubicle larger, takes up room large; SF6 gas, owing to having good arc quenching characteristic, is also adopted widely, but SF6 gas can decompose poisonous gas under arcing, to very severe of the mankind and climatic influences.Capital of a country memorandum of agreement SF6 gas is put into one of restricted six kinds of greenhouse gas, and SF6 is the extremely strong gases of a kind of greenhouse effect.Although the proportion of SF6 is greater than air, along with turbulent flow, it still can move to atmospheric top, and its greenhouse effect will be than CO2 large 23900 times.The time limit deposited of SF6 was estimated between 8000 to 10000, the most optimistic estimation is to be no less than 3200, adopt in addition the gas isolated switch cubicle of SF6 not to be suitable for especially nonventilated underground and defense strategy facility, be not also suitable for high altitude localities.
Fuse unit is very important parts in high-tension switch cabinet, and its performance can directly affect the fail safe of high-tension switch cabinet operation.Therefore, if a kind of miniaturization can be provided, environmental protection, sealed insulation performance are good, long service life, and grounding system is reliable, is easy to the fuse unit of dismounting and change, is that switch cubicle is needed.
Summary of the invention
Main purpose of the present invention is, for prior art defect, to provide a kind of fuse unit of solid insulation;
Another object of the present invention is to provide the switch cubicle of a kind of good insulation preformance, small volume.
To achieve these goals, fuse unit provided by the invention, comprise and there is uncovered housing and cover described uncovered lid, housing is the solid insulation housing with cavity being formed by the cast of used for epoxy resin APG forming technique, fuse, be placed in the cavity of housing, ground connection vacuum interrupter, sealing is in described housing.
From above scheme, the direct sealing of ground connection vacuum interrupter of the present invention is in solid insulation housing, and its insulation property are avoided the impact of external environment, adopts vacuum interrupter to carry out ground connection, and while making ground connection splitting or integrating, all in vacuum state, grounding safety is reliable.
Particularly, b electric conductor, for realizing being electrically connected to of fuse and ground connection vacuum interrupter, b electric conductor sealing, in housing, makes the stable insulation of fuse unit, has guaranteed stable electrical connection, and has reduced production process, has saved production cost.
Particularly, junction uncovered and lid adopts rubber sleeve sealing, has guaranteed the sealing effectiveness of fuse unit at open-mouth.
Switch cubicle provided by the invention comprises: framework, fuse unit, comprise and there is uncovered housing and cover this uncovered lid, housing is the solid insulation housing with cavity being formed by the cast of used for epoxy resin APG forming technique, fuse, be placed in the cavity of housing, ground connection vacuum interrupter, sealing is in housing.
From above scheme, the direct sealing of ground connection vacuum interrupter of switch cubicle of the present invention is in solid insulation housing, and its insulation property are avoided the impact of external environment, adopts vacuum interrupter to carry out ground connection, while making ground connection splitting or integrating, all in vacuum state, grounding safety is reliable.Meanwhile, the volume of switch cubicle is reduced significantly.
Particularly, at least 1 road inlet wire ring main unit and 1 tunnel outlet ring main unit, fuse unit is placed in outlet ring main unit, has guaranteed the safety of outlet ring main unit.
Particularly, junction uncovered and lid adopts rubber sleeve sealing, has guaranteed the sealing effectiveness of fuse unit at open-mouth.
Particularly, b electric conductor, for realizing being electrically connected to of fuse and ground connection vacuum interrupter, b electric conductor sealing, in housing, makes the fuse unit stable insulation of switch cubicle, has guaranteed stable electrical connection, and has reduced production process, has saved production cost.
More particularly, the pole of band isolation, it comprises vacuum load switch and isolating switch, the pole of band isolation comprises by used for epoxy resin APG forming technique to be poured into a mould and forms solid insulation body, vacuum load switch sealing in body, the pole of band isolation be positioned at vacuum load switch below there is leading-out terminal, fuse unit has the link being connected with leading-out terminal, the junction of link and leading-out terminal adopts rubber sleeve, and double threaded screw and insulation plug are tightly connected.The mode that is tightly connected of vacuum load switch and fuse unit, has avoided the impact on switch cubicle insulation property such as running environment dust, moisture, humidity, filth, condensation, high height above sea level, toy.
More specifically, a electric conductor, a electric conductor sealing is in housing, and one end of a electric conductor is electrically connected to fuse, and the other end of a electric conductor has internal thread; C electric conductor, c electric conductor sealing is in body, and one end of c electric conductor is electrically connected to vacuum load switch, and the other end of c electric conductor has installing hole; The other end of a electric conductor is electrically connected to the other end of c electric conductor.A, c electric conductor respectively sealing, in housing and body, have reduced production process, have saved production cost.
Accompanying drawing explanation
Fig. 1 is the stereogram of switch cubicle of the present invention;
Fig. 2 is the front view of inside switch cabinet structure of the present invention, has removed outside framework;
Fig. 3 is the cutaway view of switch cabinet outlet ring main unit of the present invention;
Fig. 4 is the A partial enlarged drawing of Fig. 3;
Fig. 5 is the cutaway view of pole of the band isolation of switch cubicle of the present invention;
Fig. 6 is the motor-operating mechanism view that the vacuum load switch of switch cubicle of the present invention is realized splitting or integrating lock;
Fig. 7 is the stereogram of switch cubicle dynamic seal of the present invention;
Fig. 8 is the cutaway view of switch cubicle dynamic seal of the present invention;
Fig. 9 is the C partial enlarged drawing of Fig. 8;
Figure 10 is the B partial enlarged drawing of Fig. 6;
The three-dimensional cutaway view of the pole of the band isolation of Figure 11 switch cubicle of the present invention, the position of isolating switch in closing a floodgate;
The three-dimensional cutaway view of the pole of the band isolation of Figure 12 switch cubicle of the present invention, the position of isolating switch in separating brake;
Figure 13 is the front view of inside switch cabinet structure of the present invention, has removed casing and fuse unit;
The end view of Figure 14 switch cubicle inlet wire of the present invention ring main unit, A, B, tri-bus connectors of C spatially carry out 45 degree arrangements;
Figure 15 is the D broken section enlarged drawing of Figure 13;
Figure 16 is the motor-driven isolation mechanism view of switch cubicle of the present invention, and motor-driven isolation mechanism is in open position;
Figure 17 is the motor-driven isolation mechanism end view of switch cubicle of the present invention, and motor-driven isolation mechanism is in open position;
Figure 18 is the electromagnetic clutch cutaway view of switch cubicle of the present invention;
Figure 19 is the motor-driven isolation mechanism stereogram of switch cubicle of the present invention, and motor-driven isolation mechanism is in closing position;
Figure 20 is the end view of the motor-driven isolation mechanism of switch cubicle of the present invention, and motor-driven isolation mechanism is in closing position;
Figure 21 is the stereogram that the motor-driven isolation mechanism of switch cubicle of the present invention is controlled isolation knife, the position of isolation knife in separating brake;
Figure 22 is the stereogram that the motor-driven isolation mechanism of switch cubicle of the present invention is controlled isolation knife, the position of isolation knife in closing a floodgate.
Below in conjunction with accompanying drawing, by embodiment, the present invention is further illustrated.
Embodiment
Referring to Fig. 1 and Fig. 2, Fig. 2 is the front view of inside switch cabinet structure of the present invention, has removed outside framework 11.Switch cubicle 1 comprises 2 road inlet wire ring main units 12 and 1 tunnel outlet ring main unit 13, is equipped with fuse unit 2 in outlet ring main unit 13, and inlet wire ring main unit 12 is equipped with cable connector 41(referring to Figure 14) summation current transformer 42(is referring to Figure 14).A, the B, the C three phase bus system that connect in addition inlet wire ring main unit 12 and outlet ring main unit 13.
Referring to Fig. 3, switch cubicle 1 comprises the pole 3 of fuse unit 2 and band isolation.Fuse unit 2 comprises having uncovered housing 23 and cover this uncovered lid 28, between this uncovered and lid 28, adopts rubber sleeve 27 sealings.In housing 23, be provided with fuse 21, a electric conductor 24, b electric conductor 25, conducting strip 26, transducer 231 and ground connection vacuum interrupter 22.Ground connection vacuum interrupter 22 is provided with earth terminal 221, and fuse unit 2 is provided with leading-out terminal 251.Ground connection vacuum interrupter 22 refers to that earthing is placed in vacuum environment, and when ground connection splitting or integrating, all in vacuum state, its insulation property are not affected by the external environment, and grounding safety is reliable.Whether transducer 231 is made by semi-conducting material, charged for responding to fuse unit 2, signal is passed to the charged display device of switch cubicle 1.
Referring to Fig. 5, the pole 3 of band isolation comprises body 31.In body 31, be provided with c electric conductor 36, insulated tension pole 35, vacuum load switch 32, isolating switch 33 is with 34 with being flexible coupling.Isolating switch 33 comprises isolation knife 331, connects contact 332 and fixed contact 333, the upper portion insulating of isolation knife 331, and bottom conduction, the upper and lower motion of isolation knife 331 is controlled as pull bar in top.Isolation knife 331 is by the splitting or integrating lock that has moved up and down isolating switch 33 connecting between contact 332 and fixed contact 333.Vacuum load switch 32 comprises upper contact head 321 and lower contact 322.Insulated tension pole 35 is controlled the splitting or integrating lock that upper contact heads 321 are realized vacuum load switch 32, upper contact head 321 by being flexible coupling, be with 34 be connected contact 332 connections, and then being electrically connected to of realization and isolating switch 33.
On body 31, be provided with observation window 312, implosion guard (not shown) is installed on observation window 312.By observation window 312, can observe isolating switch 33 is in closing position (seeing Figure 11) or in open position (seeing Figure 12), for avoiding insulated tension pole 35 to stop the observation sight line of observation window 312, insulated tension pole 35 comprises that two are parallel to each other, the vertical epoxy resin fiberglass rod 351(of two ends parallel connection is shown in Figure 11), between two epoxy resin fiberglass rods 351, form and observe passage, maintenance personal can pass through observation window 312, through observing passage, observe the residing position of isolation knife 331, when maintenance of equipment, for maintenance personal provides the location status of an obvious visible isolation knife 331, guarantee the safety of overhaul of the equipments process.
The pole 3 of band isolation is provided with leading-out terminal 311 below vacuum load switch 32, for the link 29 with fuse unit 2, is connected, and referring to Fig. 4, Fig. 4 is the A partial enlarged drawing of Fig. 3, has shown the annexation of leading-out terminal 311 with link 29.Leading-out terminal 311 adopts rubber sleeve 4 with the junction of link 29, and double threaded screw 52 seals, is connected with insulation plug 5.Leading-out terminal 311 is upper and lower opening tubular structure.The upper/lower terminal inner side of leading-out terminal 311 is provided with rubber sleeve 4, when link 29 is connected with leading-out terminal 311, link 29 inserts the under shed of leading-out terminal 311, push the rubber sleeve 4 of this end, insert from the upper shed of leading-out terminal 311 double threaded screw 52 one end, installing hole through c electric conductor 36, be connected with the internal thread of a electric conductor 24, insulation plug 5 inside are installed with insert nut 51, insulation plug 5 inserts from the upper shed of leading-out terminal 311, extruding is positioned at the rubber sleeve 4 of this end, and nut 51 is fastenedly connected with the other end of double threaded screw 52.Thereby realize being electrically connected to of leading-out terminal 311 and link 29, also guaranteed junction and extraneous electric insulation.The pole 3 of band isolation is provided with end of incoming cables 313 at the lower position of isolating switch 33, for connecting A phase bus or B phase bus or C phase bus (referring to Fig. 1).
Referring to Fig. 6, the pole 3 of band isolation adopts screw to be arranged on framework 65, and dynamic seal 6 is arranged between insulated tension pole 35 and framework 65, realizes the pole 3 of band isolation and the sealing of insulated tension pole 35 junctions.
Referring to Fig. 7,8 and 9, dynamic seal 6 is that lower end is uncovered, upper end closed and have the consistent silicon rubber part of whole wall thickness of connecting through hole 612, and its wall thickness is 2mm.Dynamic seal 6 comprises the corrugated part 63 of joint face 61, lower joint face 62 and tubular.Connecting through hole 612 is arranged on joint face 61, upper and lower joint face 61, uniform a plurality of installation through holes 611 on 62,621, the inner surface of upper and lower joint face 61,62 is provided with two concentric ring packing fins 613,622, through hole 611 is installed between two annular sealing fins 613, through hole 621 is installed between two annular sealing fins 622, sealing fin 613 and 622 has improved the sealing effectiveness of dynamic seal 6.The span of the outer ripple minimum profile curvature radius R of corrugated part 63 is: 2mm≤R≤4mm.Dynamic seal of the present invention 6 adopts flexible silicon rubber manufacture, and due to the design of the corrugated part 63 of tubular, therefore can improve the sport life span of dynamic seal 6, reduce production costs, and volume is less.
Referring to Figure 10, insulated tension pole 35 comprises forced section 352 and support portion 353, dynamic seal 6 is enclosed within the periphery of insulated tension pole 35, forced section 352 is through connecting through hole 612, upper joint face 61 passes installation through hole 611 by screw and is arranged on support portion 353, and lower joint face 62 passes installation through hole 621 by screw and is arranged on framework 65.
Referring to Fig. 6, Fig. 6 is that vacuum load switch 32 realizations of solid insulation switch cabinet of the present invention are closed, the motor-operating mechanism view of separating brake, its course of work is as follows: direct current permanent magnet motor 648 or worm screw 647 drive pinion 646 rotations, pinion 646 drives gear wheel 645 to rotate to be cam 644 energy storage, cam 644 drives output toggle arm 643 to rotate, output toggle arm 643 drives main shaft connecting lever 641 to rotate by connecting rod 642, main shaft connecting lever 641 drives forced section 352 to do, lower motion, thereby make on insulated tension pole 35, lower motion, thereby realizing vacuum load switch closes, separating brake process, in above motion process, dynamic seal 6 plays movable sealing effect for insulated tension pole 35.
Referring to Figure 13, switch cubicle 1 comprises A, B, C three phase bus system.Referring to Figure 14, the inlet wire ring main unit 12 of switch cubicle 1 is equipped with cable connector 41 summation current transformers 42, and inlet wire ring main unit 12 does not have fuse unit 2.
The structure of every phase bus of A, B, C three phase bus system is the same, and the C phase bus of now take is example, and referring to Figure 15, Figure 15 is the partial sectional view of C phase bus, has shown the internal structure of C phase bus.C phase bus comprises 7,3 bus connectors 75 of 2 buses, screw mandrel 71, rubber sleeve 74 and insulation plug 76.Bus 7 comprises tubulose bus-bars conductor 72 and valve jacket 73.Valve jacket 73 is by used for epoxy resin APG(Automatic Pressure Gelation Process) insulator that forming technique cast forms, tubulose bus-bars conductor 72 is cast in valve jacket 73.Bus connector 75 comprises d electric conductor 751 and has the shell 752 of column through hole connecting portion, shell 752 is by used for epoxy resin APG(Automatic Pressure Gelation Process) insulator that forming technique cast forms, d electric conductor 751 is cast in shell 752.One end of d electric conductor 751 has a connecting hole 7511(referring to Figure 11), for being connected with screw mandrel 71.The column through hole connecting portion of screw mandrel 71 bus connector 75 in the middle of being arranged in by 2 buses 7 connects, in junction, with extruding rubber sleeve 74, seal, in the column through hole connecting portion of the bus connector 75 of both sides except sealing with extruding rubber sleeve 74, also by the end of insulation plug 76 shutoff buses 7.The inside of insulation plug 76 is installed with insert nut 77, and screw mandrel 71 passes connecting hole 7511(referring to Figure 11) fastening with insert nut 77, thus make bus 7 lockings.Bus connector 75 with the end of incoming cables 313(of the pole 3 of band isolation referring to Figure 12) be threaded, the d electric conductor 751 of bus connector 75 is electrically connected to isolating switch 33, thereby realizes C phase bus and be with being electrically connected to of the pole 3 of isolating.
Three bus connectors 75 of C phase bus are substantially in the same plane and be arranged in parallel, they all have central axis c(referring to Figure 11 and Figure 14), correspondingly three bus connectors of A phase and B phase bus are also substantially in the same plane and be arranged in parallel, they also have respectively central axis a and b(referring to Figure 14), from looking up perpendicular to the axial side of bus 7, A phase bus is adjacent with B phase bus, B phase bus is adjacent with C phase bus, A phase bus is non-conterminous with C phase bus, central axis a and b are in angle of 45 degrees, central axis b and c are in angle of 45 degrees, that is: A, B, the connector of C three-phase bus carries out 45 degree arrangements by bus, rationally distributed, saved space.
When the solid insulation switch cabinet being used for when A, B, C three phase bus system only includes 1 road inlet wire ring main unit and 1 tunnel outlet ring main unit, every phase bus needs two bus connectors 75 and a bus 7.When the solid insulation switch cabinet being used for when A, B, C three phase bus system comprises more than 2 tunnels inlet wire ring main unit and 1 tunnel outlet ring main unit, bus 7 quantity of every phase bus are more than 2, many 1 than the quantity of bus 7 of the quantity of bus connector 75.
Referring to Figure 16 and Figure 17, Figure 16 and 17 is views of the electronic isolated operation mechanism of switch cubicle of the present invention, electronic isolated operation mechanism 9 for disconnecting switch operation 33 minute, close a floodgate.Electronic isolated operation mechanism 9 comprises mechanical transmission mechanism and electromagnetic clutch 8, and mechanical transmission mechanism comprises that spring mechanism 91, separating brake travel switch 92, combined floodgate travel switch 93, power transmission shaft 96, separating brake driving lever 962, direct current permanent magnet motor 94 and pinion 95(are shown in Figure 21).The fastening rocking arm 961 that is provided with in one end of power transmission shaft 96.Separating brake driving lever 962 comprises two driving levers that are roughly L-type, and driving lever symmetry is fastened on the upper and lower side of power transmission shaft 96.
Referring to Figure 18, Figure 18 is the electromagnetic clutch view of solid insulation switch cabinet of the present invention.Electromagnetic clutch 8 comprises that the magnetic that coil 852 is housed grips 85, baffle plate 84, armature 83, magnetic are gripped ring gear 841, armature ring gear 831, connect 82, spring leaf 821 and gear wheel 81.Magnetic is gripped ring gear 841 all has with armature ring gear 831 end-tooth that size and number is identical.Magnetic is gripped 85 and is supported by deep groove ball bearing 851, by installation, is fixed.Armature 83 adopts pin 832 to be fastenedly connected with armature ring gear 831.Baffle plate 84 and magnetic are gripped ring gear 841 and are adopted pin 842 to be fastenedly connected.Connect 82 the involute external tooth involute internal tooth slippage in the axial direction of armature ring gear 831 relatively, connect 82 and adopt screw fastening with adjacent gear wheel 81.The axis hole of baffle plate 84 and power transmission shaft 96 use keys 843 are connected, and mechanical transmission mechanism and electromagnetic clutch 8 are combined.
The operating process of electromagnetic clutch 8 is as follows: when coil 852 energising, producing electromagnetic force inhales armature ring gear 831 to grip ring gear 841 to magnetic, both end-tooths are meshed, moment is just delivered to and connects 82 from gear wheel 81, by connection 82 band moving armature ring gears 831, be delivered to magnetic and grip ring gear 841, thereby make power transmission shaft 96 rotations, realize electric operating.After coil blackout, electromagnetic force disappears, and it is separated that armature ring gear 831 is just gripped ring gear 841 by the axial thrust of end-tooth and the restoring force of spring leaf 821 and magnetic, and armature ring gear 831 is thrown off mutually with the end-tooth that magnetic is gripped ring gear 841, has just stopped the transmission of moment.
Referring to Figure 16 and Figure 17, the separating brake course of work of electronic isolated operation mechanism 9 is as follows: when the sub-gate signal of switch cubicle 1 starts, the armature ring gear 831 of electromagnetic clutch 8 and magnetic are gripped ring gear 841 phase adhesives, direct current permanent magnet motor 94 forwards drive pinion 95(to see Figure 21) rotation, pinion 95 drives gear wheel 81(to see Figure 21) rotation, make power transmission shaft 96 be rotated clockwise to open position, separating brake driving lever 962 was stirred mid point by spring mechanism 91 simultaneously, spring mechanism 91 is depressed separating brake travel switch 92, electromagnetic clutch 8 power-off at once, armature ring gear 831 and magnetic are gripped ring gear 841 and are separated, power transmission shaft 96 stops operating, now electronic isolated operation mechanism 9 is in open position.
Referring to Figure 19 and 20, Figure 19 and 20, are views of the electronic isolated operation mechanism of solid insulation switch cabinet of the present invention, electronic isolated operation mechanism is in closing position.The combined floodgate course of work of electronic isolated operation mechanism 9 is as follows: when the switching signal of switch cubicle 1 starts, the armature ring gear 831 of electromagnetic clutch 8 and magnetic are gripped ring gear 841 phase adhesives, direct current permanent magnet motor 94 reversions drive pinion 95 rotations, pinion 95 drives gear wheel 81 rotations, make power transmission shaft 96 be rotated counterclockwise closing position, the driving lever 962 that simultaneously closes a floodgate was stirred mid point by spring mechanism 91, spring mechanism 91 is depressed combined floodgate travel switch 93, electromagnetic clutch 8 power-off at once, armature ring gear 831 and magnetic are gripped ring gear 841 and are separated, power transmission shaft 96 stops operating, now electronic isolated operation mechanism 9 is in closing position.
Electronic isolated operation mechanism 9 except can electric operating make its in minute, closing position, also can manual operation realize.When electromagnetic clutch power-off, yoke ring gear 841 disconnects with armature ring gear 831, when the time comes can by manual rotation power transmission shaft 96 realize electronic isolated operation mechanism 9 minutes, close a floodgate.
The energising of coil 852, power-off are to be realized accurately and being controlled by spring mechanism 91 and travel switch 92,93 actings in conjunction.
Referring to Figure 21, Figure 21 is the view that the electronic isolated operation mechanism 9 of solid insulation switch cabinet of the present invention controls isolation knife 331, the position of isolation knife 331 in separating brake.Switch cubicle 1 is provided with the support 97 of L-type, and the upper end of support 97 fastening support isolation knife 331 is also provided with elongated bullport 98 on support 97, and rocking arm 961 can slide along elongated bullport 98, drives the upper and lower motion of support 97.
The separating brake process of isolating switch 33 is as follows: when the sub-gate signal of switch cubicle 1 starts, the armature ring gear 831 of electromagnetic clutch 8 and magnetic are gripped ring gear 841 phase adhesives, direct current permanent magnet motor 94 forwards drive pinion 95 rotations, pinion 95 drives gear wheel 81 rotations, power transmission shaft 96 is turned clockwise, the rocking arm 961 being fastenedly connected with power transmission shaft 96 drives support 97 to move upward, until isolation knife 331 is in open position, separating brake driving lever 962 was stirred mid point by spring mechanism 91 simultaneously, spring mechanism 91 is depressed separating brake travel switch 92, electromagnetic clutch 8 power-off at once, armature ring gear 831 and magnetic are gripped ring gear 841 and are separated, power transmission shaft 96 stops operating.
Referring to Figure 22, Figure 22 is the view that the electronic isolated operation mechanism 9 of solid insulation switch cabinet of the present invention controls isolation knife 331, the position of isolation knife 331 in closing a floodgate.The making process of isolating switch 33 is as follows: when the switching signal of switch cubicle 1 starts, the armature ring gear 831 of electromagnetic clutch 8 and magnetic are gripped ring gear 841 phase adhesives, direct current permanent magnet motor 94 reversions drive pinion 95 rotations, pinion 95 drives gear wheel 81 rotations, power transmission shaft 96 is rotated counterclockwise, the rocking arm 961 being fastenedly connected with power transmission shaft 96 drives support 97 to move downward, until isolation knife 331 is in closing position, the driving lever 962 that simultaneously closes a floodgate was stirred mid point by spring mechanism 91, spring mechanism 91 is depressed combined floodgate travel switch 93, electromagnetic clutch 8 power-off at once, armature ring gear 831 and magnetic are gripped ring gear 841 and are separated, power transmission shaft 96 stops operating.
Finally it is emphasized that above is only explanation of the invention rather than restriction for example, and protection scope of the present invention is as the criterion with the content of claim.As the common engineers and technicians of this area, any equivalence techniques conversion of making based on inventive spirit of the present invention is all within protection scope of the present invention.
Claims (5)
1. switch cubicle, comprising:
Framework;
Fuse unit, described fuse unit comprises having uncovered housing and cover described uncovered lid;
It is characterized in that:
Described housing is the solid insulation housing with cavity being formed by the cast of used for epoxy resin APG forming technique;
Fuse, is placed in the cavity of described housing;
Ground connection vacuum interrupter, sealing is in described housing;
The pole of band isolation, it comprises vacuum load switch and isolating switch, the pole of described band isolation comprises by used for epoxy resin APG forming technique to be poured into a mould and forms solid insulation body, described vacuum load switch sealing in described body, the pole of described band isolation be positioned at described vacuum load switch below there is leading-out terminal;
Described fuse unit has the link being connected with described leading-out terminal;
The junction of described link and described leading-out terminal adopts rubber sleeve, and double threaded screw seals, is connected with insulation plug.
2. switch cubicle according to claim 1, is characterized in that:
At least 1 road inlet wire ring main unit and 1 tunnel outlet ring main unit, described fuse unit is placed in described outlet ring main unit.
3. switch cubicle according to claim 1, is characterized in that:
Described junction uncovered and described lid adopts rubber sleeve sealing.
4. switch cubicle according to claim 1, is characterized in that:
B electric conductor, for realizing being electrically connected to of described fuse and described ground connection vacuum interrupter;
Described b electric conductor sealing is in described housing.
5. switch cubicle according to claim 1, is characterized in that:
A electric conductor, described a electric conductor sealing is in described housing, and one end of described a electric conductor is electrically connected to described fuse, and the other end of described a electric conductor has internal thread;
C electric conductor, described c electric conductor sealing is in described body, and one end of described c electric conductor is electrically connected to described vacuum load switch, and the other end of described c electric conductor has installing hole;
The other end of described a electric conductor is electrically connected to the other end of described c electric conductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110440008.6A CN102427011B (en) | 2011-12-23 | 2011-12-23 | Fuse wire tube and switch cabinet |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110440008.6A CN102427011B (en) | 2011-12-23 | 2011-12-23 | Fuse wire tube and switch cabinet |
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| CN102427011A CN102427011A (en) | 2012-04-25 |
| CN102427011B true CN102427011B (en) | 2014-01-22 |
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| CN102412519B (en) * | 2011-12-23 | 2014-04-23 | 珠海康晋电气有限公司 | Solid-sealed polar pole with insulation and switch cabinet |
| CN102820626B (en) * | 2012-08-20 | 2015-04-08 | 西安西能电器新技术发展有限公司 | Solid insulation vacuum ring-network cabinet |
| CN104348089B (en) * | 2014-10-31 | 2017-07-21 | 许继集团有限公司 | Fuse unit and the switch cubicle using the fuse unit |
| CN104348090B (en) * | 2014-10-31 | 2017-11-24 | 许继集团有限公司 | Switch cubicle fuse unit and the solid insulation switch cabinet using the fuse unit |
| CN104485599A (en) * | 2014-12-10 | 2015-04-01 | 中国能建集团装备有限公司南京技术中心 | Fuse unit for solid insulation ring main unit |
| CN106329434B (en) * | 2015-07-03 | 2019-06-14 | 伊顿电力设备有限公司 | Solid insulation cylinder |
| CN105845492A (en) * | 2016-06-06 | 2016-08-10 | 广西南宁德通网络有限公司 | Vacuum circuit-breaking equipment |
| CN107482522B (en) * | 2017-08-09 | 2019-07-05 | 平高集团有限公司 | The installation method of solid-state insulated switchgear and plug and plug |
| CN110706987B (en) * | 2018-05-28 | 2022-04-12 | 江苏锡安达防爆股份有限公司 | Fuse explosion-proof device |
| CN110571698B (en) * | 2019-10-15 | 2024-03-19 | 国网安徽省电力有限公司阜阳供电公司 | Ring main unit based on high-voltage measurement |
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| CN101677176A (en) * | 2008-09-19 | 2010-03-24 | 沈阳昊诚电力科技有限公司 | Integrated prepackage type transformer station |
| CN102110956A (en) * | 2010-12-14 | 2011-06-29 | 北京清畅电力技术股份有限公司 | Novel solid insulated switch |
| CN202084836U (en) * | 2011-06-22 | 2011-12-21 | 西安西能电器新技术发展有限公司 | Solid insulation vacuum looped network cabinet |
| CN202384284U (en) * | 2011-12-23 | 2012-08-15 | 珠海康晋电气有限公司 | Fuse tube and switch cabinet |
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| Publication number | Publication date |
|---|---|
| CN102427011A (en) | 2012-04-25 |
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Address after: 519100 floor 10, building 1, No. 6 Futian Road, Xiangzhou District, Zhuhai City, Guangdong Province Patentee after: ZHUHAI COMKING ELECTRIC CO.,LTD. Address before: 519000 Building 5, No. 6, Xianggong Road, Hongwan Industrial Zone, Zhuhai, Guangdong Patentee before: ZHUHAI COMKING ELECTRIC Co.,Ltd. |
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