CN103166143A - Solid dead ring main unit - Google Patents

Solid dead ring main unit Download PDF

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Publication number
CN103166143A
CN103166143A CN201210595029XA CN201210595029A CN103166143A CN 103166143 A CN103166143 A CN 103166143A CN 201210595029X A CN201210595029X A CN 201210595029XA CN 201210595029 A CN201210595029 A CN 201210595029A CN 103166143 A CN103166143 A CN 103166143A
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CN
China
Prior art keywords
vacuum arc
arc extinguish
main unit
station vacuum
ring main
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Granted
Application number
CN201210595029XA
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Chinese (zh)
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CN103166143B (en
Inventor
刘晓颖
刘坚钢
吴德祥
叶建强
何耀明
许文枫
朱金东
戴守祥
符吉祥
孙战捷
熊白云
蒋超奇
诸益栋
诸红枫
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Ningbo Youwei Electric Power Technology Co., Ltd.
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刘晓颖
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Priority to CN201210595029.XA priority Critical patent/CN103166143B/en
Publication of CN103166143A publication Critical patent/CN103166143A/en
Application granted granted Critical
Publication of CN103166143B publication Critical patent/CN103166143B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The invention relates to the technical field of solid dead ring main units and discloses a solid dead ring main unit. The ring main unit comprises a cabinet body, cabinet doors, a door lock mechanism, a two-station mechanism, a three-station on-off operation mechanism and an embedded pole, wherein the embedded pole comprises an insulator, a two-station vacuum arc-extinguishing chamber, a three-station vacuum arc-extinguishing chamber, a first insulation draw bar and a second insulation draw bar. The ring main unit has the advantage of achieving full solid insulation of the embedded pole, and therefore full solid insulation of the solid dead ring main unit can be achieved and the solid insulation ring main unit can promote high-pressure switch equipment to develop towards miniaturization.

Description

A kind of solid insulation ring main unit
Technical field
The present invention relates to the solid insulation ring main unit technical field, relate in particular to a kind of solid insulation ring main unit.
Background technology
In high voltage switchgear, if the insulation crust of vacuum interrupter is exposed in air, easily exist by extraneous dust, the moist problem of polluting.For reducing the impact of external environment, usually require the shell of vacuum interrupter that enough length is arranged, this not only affects the miniaturization of vacuum interrupter, also affect the Performance And Reliability of vacuum interrupter, therefore, the conductive pieces that vacuum interrupter is relevant with circuit breaker is embedded into simultaneously in the solid insulating material that this class of epoxy resin easily solidifies and forms pole, makes whole circuit breaker polar become as a whole parts, is called pole.
Pole can improve the reliability of circuit breaker; Because vacuum interrupter is embedded in solid material, pole has very high dielectric strength; After vacuum interrupter was embedded in solid material, the external environment of pole was less on the impact of vacuum interrupter.Therefore, present high voltage switchgear is progressively to the solid insulation future development.
In prior art, for the safety operation of maintenance of equipment need to, the primary cut-out switch cubicle is provided with the isolating switch of grounding function, the primary cut-out switch cubicle adopts solid insulation ring main unit usually, its general circuit breaker polar of solid inside front cover station vacuum arc extinguish chamber that adopts connects the isolating switch composition, and the isolating switch port adopts air or SF6 gas-insulated, and this solid insulation ring main unit is not the insulation of total solids, will affect high voltage switchgear and develop to miniaturization.
Therefore, how to realize the insulation of solid insulation ring main unit total solids, become the technical barrier that those skilled in the art need to be resolved hurrily.
Summary of the invention
First purpose of the present invention is to provide a kind of solid insulation ring main unit, comprises cabinet, cabinet door, door lock mechanism, two station mechanisms, three-position switch operation mechanism and pole;
Described pole comprises insulator, two station vacuum arc extinguish chambers, three station vacuum arc extinguish chambers, the first insulated tension pole, the second insulated tension pole; Described two station vacuum arc extinguish chambers, described three station vacuum arc extinguish chambers are embedded in respectively in first cavity, the second cavity of described insulator; The first insulated tension pole, the second insulated tension pole are connected with the moved end of described two station vacuum arc extinguish chambers, the moved end of described three station vacuum arc extinguish chambers respectively, the moved end of the moved end of described two station vacuum arc extinguish chambers, described three station vacuum arc extinguish chambers connects by connector, and described the first insulated tension pole, the second insulated tension pole, described connector all are positioned at the 3rd cavity of described insulator; The inlet wire conducting rod of described two station vacuum arc extinguish chambers, the outlet conductive pole of described three station vacuum arc extinguish chambers and earth terminal all extend described insulator.
Preferably, described earth terminal comprises earth terminal and ground stud, and described earth terminal is connected with the moved end of described three station vacuum arc extinguish chambers, and described ground stud is connected with described earthing device, and described ground stud extends described insulator.
Preferably, at least one in described outlet conductive pole, inlet wire conducting rod, described earth terminal, described ground stud and described insulator envelope place admittedly are provided with gauze screen, and the wiring pile end face of described gauze screen extends described insulator.
preferably, described three-position switch operation mechanism comprises the isolation rotating shaft, the ground connection rotating shaft, the first gear mechanism, power transmission shaft, the second gear mechanism, three position actuators, described isolation rotating shaft one end, one end of ground connection rotating shaft forms respectively the isolated operation end, the ground connection operating side, the other end of described isolation rotating shaft, the other end of ground connection rotating shaft, one end of power transmission shaft carries out transmission by described the first gear drive, the driving gear center of the other end of described power transmission shaft and described the second gear drive is connected, the driven gear center of described the second gear drive is connected with three position actuators by connecting axle, three position actuators have isolating switch moving contact connecting portion.
Preferably, described three position actuators comprise cam, connecting rod; Described cam is provided with chute, and described chute comprises the first segmental arc chute with different arc radius, the second segmental arc chute, the 3rd segmental arc chute that is communicated with successively; The upper end of described connecting rod is provided with pivot pin, and described bearing pin is movably connected in described chute, and the lower end of described connecting rod is provided with the isolating switch moving contact connecting portion for the insulated tension pole that connects isolating switch; The pivot of described cam is connected with described connecting axle.
Preferably, described door lock mechanism comprises cam, pull bar, fork, latch, described cam is connected with the ground connection rotating shaft of three-position switch operation mechanism by transmission mechanism, described cam is provided with chute, described chute comprises the circular arc with different radii of two sections connections, the upper end of described pull bar is stuck in described chute by pivot pin, one end of the lower end of described pull bar and described fork is hinged, the middle part of described fork is hinged fixing, the other end of described fork and the upper end of described latch are hinged, and the lower end of described latch is used for inserting the jack of being located on described cabinet door.
Preferably, the through hole of supporting plate is passed in the lower end of described pull bar, being positioned on the described pull bar of both sides, described supporting plate up and down respectively, thread connection has the first packing ring, stop nut, has default spacing between described the first packing ring, described stop nut, the top of the above the first packing ring of described pull bar is provided with the second packing ring, is provided with spring between described the first packing ring, described the second packing ring.
preferably, also comprise interlocking device, this interlocking device comprises all rotatable baffle plates, the first direction board, the second direction board, described baffle plate is arranged on described support by pivot pin is rotatable, described baffle plate is positioned at described isolated operation end, the outside of described ground connection operating side, described the first direction board, the inboard of described the second direction board is respectively equipped with can be against first grade of pin of described baffle plate outer, the second gear pin, by adjusting first grade of pin, the position of second gear pin, described baffle plate can be in and only block described isolated operation hole, only block described ground connection handle hole, block simultaneously described isolated operation hole, three positions of described ground connection handle hole.
solid insulation ring main unit provided by the invention comprises cabinet, the cabinet door, door lock mechanism, two station mechanisms, three-position switch operation mechanism and pole, wherein pole is being used for holding respectively two station vacuum arc extinguish chambers, the first cavity of three station vacuum arc extinguish chambers, the top of the second cavity is provided with the 3rd cavity, two station vacuum arc extinguish chambers, the moved end of three station vacuum arc extinguish chambers is all stretched in described the 3rd cavity, the first insulated tension pole, the second insulated tension pole and connector are positioned at described the 3rd cavity, with two station vacuum arc extinguish chambers, three station vacuum arc extinguish chambers, the inlet wire conducting rod, outlet conductive pole, earth terminal is enclosed in together admittedly, and realize electric insulation with operating mechanism by the first insulated tension pole, the second insulated tension pole, thus realize the solid insulation of pole, and then can realize the insulation of solid insulation ring main unit total solids, can promote that high voltage switchgear develops to miniaturization.
Description of drawings
Fig. 1 is the internal structure schematic diagram of solid insulation ring main unit provided by the present invention;
Fig. 2 is the Facad structure schematic diagram of solid insulation ring main unit provided by the present invention
Fig. 3 is the structural representation of a kind of embodiment of pole in Fig. 1;
Fig. 4 is the structural representation of door lock mechanism in Fig. 1;
Fig. 5 is the main TV structure schematic diagram of three-position switch actuating mechanism in Fig. 1;
Fig. 6 is the structural representation of operating mechanism in Fig. 6;
Fig. 7 is the plan structure schematic diagram of three position actuators in Fig. 5;
Fig. 8 is the sectional structure schematic diagram of three position actuators in Fig. 7;
Fig. 9 is the structural representation of interlocking device.
Wherein, in Fig. 1-Fig. 9:
Cabinet 100, cabinet door 110, door lock mechanism 120, door handle 121, three-position switch operation mechanism 130, isolated operation hole 301, ground connection handle hole 302, interlock plate handle hole 303, two station mechanisms 140, permanent magnet mechanism controller 141, closing switch 142, separating brake switch 143, charged display device 150;
Insulator 1, the first cavity 1-1, the second cavity 1-2, the 3rd cavity 1-3, two station vacuum arc extinguish chambers 2, three station vacuum arc extinguish chambers 3, the first insulated tension pole 4, the second insulated tension pole 5, flexible link 6, inlet wire conducting rod 7, outlet conductive pole 8, earth terminal 9, ground stud 10, gauze screen 11;
Isolation rotating shaft 101, ground connection rotating shaft 102, power transmission shaft 103, the first gear mechanism 104, the second gear mechanism 105, driving gear 151, driven gear 152, three position actuators 16, connecting axle 160, cam 161, connecting rod 162, pivot pin 163, pivot pin 164;
Support 201, the first direction board 202, first grade of pin 221, back-up ring 222, the first rotating shaft 223, the second direction board 203, second gear pin 231, back-up ring 232, the second rotating shaft 233, baffle plate 204, connecting rod 241, pivot pin 242, pivot pin 243, axle sleeve 244.
Supporting plate 70, cam 71, pull bar 72, fork 73, inserted link 74, plug 75, jack 76, connecting rod 77, the first packing ring 78, the second packing ring 79, stop nut 710, nut 711, spring 712.
Embodiment
In order to make those skilled in the art better understand technical scheme of the present invention, the present invention is described in further detail below in conjunction with the drawings and specific embodiments.
Please refer to Fig. 1-Fig. 3, Fig. 1 is the internal structure schematic diagram of solid insulation ring main unit provided by the present invention, Fig. 2 is the Facad structure schematic diagram of solid insulation ring main unit provided by the present invention, and Fig. 3 is the structural representation of a kind of embodiment of pole in Fig. 1.
As shown in Figure 1 and Figure 2, solid insulation ring main unit provided by the invention comprises cabinet 100, cabinet door 110, door lock mechanism 120, two station mechanisms 140, three-position switch operation mechanism 130 and pole.
Wherein, as shown in Figure 3, described pole comprises insulator 1, two station vacuum arc extinguish chambers 2, three station vacuum arc extinguish chambers 3, the first insulated tension pole 4, the second insulated tension pole 5; Described insulator 1 has the first cavity 1-1, the second cavity 1-2, the 3rd cavity 1-3, and described the first cavity 1-1, the second cavity 1-2 are arranged side by side, and described the 3rd cavity 1-3 is positioned at the top of described the first cavity 1-1, the second cavity 1-2; Described two station vacuum arc extinguish chambers 2, described three station vacuum arc extinguish chambers 3 are embedded in respectively in described the first cavity 1-1, the second cavity 1-2; The moved end of the moved end of described two station vacuum arc extinguish chambers 2, described three station vacuum arc extinguish chambers 3 is all stretched in described the 3rd cavity 1-3.
The first insulated tension pole 4, the second insulated tension pole 5 are connected with the moved end of described two station vacuum arc extinguish chambers 2, the moved end of described three station vacuum arc extinguish chambers 3 respectively, the moved end of the moved end of described two station vacuum arc extinguish chambers 2, described three station vacuum arc extinguish chambers 3 connects by connector, and described the first insulated tension pole 4, the second insulated tension pole 5, described connector all are positioned at described the 3rd cavity 1-3; Inlet wire conducting rod 7 is connected with the quiet end of two station vacuum arc extinguish chambers 2, outlet conductive pole 8 is connected with the quiet end of three station vacuum arc extinguish chambers 3, earth terminal is located at the side of three station vacuum arc extinguish chambers 3, earth terminal is used for the moved end ground connection with three station vacuum arc extinguish chambers 3, and the inlet wire conducting rod 7 of described two station vacuum arc extinguish chambers 2, the outlet conductive pole 8 of described three station vacuum arc extinguish chambers 3 and earth terminal all extend described insulator 1.
This pole is provided with the 3rd cavity 1-3 above for the first cavity 1-1, the second cavity 1-2 that hold respectively two station vacuum arc extinguish chambers 2, three station vacuum arc extinguish chambers 3, the moved end of two station vacuum arc extinguish chambers 2, three station vacuum arc extinguish chambers 3 is all stretched in described the 3rd cavity 1-3, the first insulated tension pole 4, the second insulated tension pole 5 and connector are positioned at described the 3rd cavity 1-3, and two station vacuum arc extinguish chambers 2, three station vacuum arc extinguish chambers 3, inlet wire conducting rod 7, outlet conductive pole 8, earth terminal are enclosed in together admittedly; And realize electric insulation with operating mechanism by the first insulated tension pole 4, the second insulated tension pole 5, thus realize the solid insulation of pole, and then can realize the insulation of solid insulation ring main unit total solids, can promote that high voltage switchgear develops to miniaturization.
In preferred version, described insulator 1 can be epoxy resin block, epoxy resin has good insulation property, after can the fixed installation such as two above-mentioned station vacuum arc extinguish chambers 2, three station vacuum arc extinguish chambers 3, inlet wire conducting rod 7, outlet conductive pole 8, earth terminal, the first insulated tension pole 4, the second insulated tension pole 5 is complete, the mode by cast forms described insulator 1.
In preferred version, can be provided with conductor layer or semiconductor layer at the outer surface of described insulator 1, be used for safety ground.
In concrete scheme, be positioned at and be convenient to described earth terminal ground connection, described earth terminal comprises earth terminal 9 and ground stud 10, described earth terminal 9 is connected with the moved end of described three station vacuum arc extinguish chambers 3, described ground stud 10 is connected with described earthing device, and described ground stud 10 extends described insulator 1.
In preferred scheme, at least one in described outlet conductive pole 8, inlet wire conducting rod 7, described earth terminal, described ground stud 10 and described insulator 1 solid envelope place is provided with gauze screen 11, the wiring pile end face of described gauze screen 11 extends described insulator 1, and the wiring pile end face of gauze screen 11 is used for connecting the charged display device 150 of solid insulation ring main unit.
In preferred scheme, described connector is flexible link 6, and flexible link 6 can adopt thin copper wire to be woven into banding pattern or be twisted into the structure of multiply circle, to realize large current continuity operation.
In concrete scheme, described three station vacuum arc extinguish chambers 3 are isolating switch, and described two station vacuum arc extinguish chambers 2 are circuit breaker.Externally under the effect of operating mechanism, the moved end of three station vacuum arc extinguish chambers 3 can move up and down, can be in closing position, open position and earthing position, be in "on" position when moved end and quiet end in contact, be in gate-dividing state when separate with quiet end the moved end, be in ground state when the moved end contacts with ground connection.
The moved end of described two station vacuum arc extinguish chambers 2 can be connected with the operating side of permanent magnet mechanism by the second insulating bar, drive two station vacuum arc extinguish chambers 2 by permanent magnet mechanism and be in combined floodgate or gate-dividing state, in concrete scheme, permanent magnet mechanism can be controlled circuit breaker by closing switch 142 switches, the separating brake switch 143 of permanent magnet mechanism controller 141 and be in "on" position or gate-dividing state.
wherein, as Fig. 5, shown in Figure 6, described three-position switch operation mechanism comprises operating mechanism and three position actuators 16, wherein operating mechanism comprises isolation rotating shaft 101, ground connection rotating shaft 102, the first gear mechanism 104, power transmission shaft 103, the second gear mechanism 105, described isolation rotating shaft 101 1 ends, one end of ground connection rotating shaft 102 forms respectively the isolated operation end, the ground connection operating side, the other end of described isolation rotating shaft 101, the other end of ground connection rotating shaft 102, one end of power transmission shaft 103 carries out transmission by described the first gear drive, driving gear 151 centers of the other end of described power transmission shaft 103 and described the second gear drive are connected, driven gear 152 centers of described the second gear drive are connected with three position actuators 16 by connecting axle 160.
As Fig. 7, shown in Figure 8, described three position actuators 16 comprise cam 161, connecting rod 162, and the two end supports of described connecting axle is on frame; Described cam 161 is provided with the cam chute, and described cam chute comprises the first segmental arc chute with different arc radius, the second segmental arc chute, the 3rd segmental arc chute that is communicated with successively; The upper end of described connecting rod 162 is provided with pivot pin 164, and described bearing pin 164 is movably connected in described cam chute, and the lower end of described connecting rod 162 is provided with the isolating switch moving contact connecting portion of a plurality of insulated tension poles be used to connecting a plurality of isolating switches.
In the time of isolating rotating shaft 101 and rotate counterclockwise 180 °, rotate 120 ° by the first gear mechanism 104, power transmission shaft 103, the second gear mechanism 105 driving cams 161, pivot pin on connecting rod 162 will move upward from low side in chute, realize the close a floodgate conversion of separating brake of isolating switch; Clockwise rotate ground connection rotating shaft 102 Rotate 180s °, by 120 ° of the first gear mechanisms 104, power transmission shaft 103, the second gear mechanism 105 driving cams 161 rotation, connecting rod 162 moves upward again, realizes that the isolating switch separating brake is to the conversion of ground connection.
as shown in Figure 9, interlocking device is used for the isolated operation end to three station operating mechanisms, interlock in the ground connection operating side, described isolated operation end, described ground connection operating side lays respectively at the isolated operation hole 301 of support, in ground connection handle hole 302, this interlocking device comprises rotatable baffle plate 204, the first direction board 202, the second direction board 203, described baffle plate 204 is arranged on described support 201 by pivot pin 242 is rotatable, and described baffle plate 204 is positioned at described isolated operation end, the outside of described ground connection operating side, this baffle plate 204 is used for optionally blocking described isolated operation hole 301 or described ground connection handle hole 302, described the first direction board 202, the inboard of described the second direction board 203 is respectively equipped with can be against first grade of pin 221 of described baffle plate 204 outers, second gear pin 231 is by rotating described the first direction board 202, described the second direction board 203 is also namely by adjusting first grade of pin 221, the position of second gear pin 231, described baffle plate 204 can be in only blocks described isolated operation hole 301, only block described ground connection handle hole 302, block simultaneously described isolated operation hole 301, 302 3 positions of described ground connection handle hole.
In concrete scheme, for the ease of operation baffle plate 204, the interlocking device that the application provides also comprises connecting rod 241, and as shown in Figure 4, an end of connecting rod 241 is baffle plate 204 round ends, the other end is provided with pivot pin 243, baffle plate 204 is provided with elongated slot, and pivot pin 243 slidably is stuck in described elongated slot, rotates described baffle plate 204 round ends, pivot pin 243 can slide in described elongated slot, drives simultaneously baffle plate 204 and in the opposite direction rotates around pivot pin 242.
In preferred scheme, described baffle plate 204 round ends can be for being located at the axle sleeve 244 of connecting rod 241 ends, can adopt operating grip to rotate described axle sleeve 244, operating grip is inserted in described axle sleeve 244, axle sleeve 244 is clockwise or when being rotated counterclockwise, and described baffle plate 204 will be counterclockwise or the clockwise direction rotation.In baffle plate 204 round end settings and interlock plate handle hole 303.
In concrete scheme, the pivot of described the first direction board 202 is fixedly mounted in described the first rotating shaft 223 by back-up ring 222, by rotating the first rotating shaft 223, can drive the first direction board 202 and carry out corresponding rotation, and then make first grade of pin 221 be in corresponding position; The pivot of described the second direction board 203 is fixedly mounted in described the second rotating shaft 233 by back-up ring 232, by rotating the second rotating shaft 233, can drive the second direction board 203 and carry out corresponding rotation, and then make second gear pin 231 be in corresponding position.
wherein, door lock mechanism 120 is used for pinning and opening the cabinet door 110 of solid insulation ring main unit, this door lock mechanism 120 comprises cam 71, pull bar 72, fork 73, latch, described cam 71 is connected with the ground connection rotating shaft of three-position switch operation mechanism by transmission mechanism, described cam 71 is provided with chute, described chute comprises the circular arc with different radii of two sections connections, the upper end of described pull bar 72 is stuck in described chute by pivot pin, one end of the lower end of described pull bar 72 and described fork 73 is hinged, the middle part of described fork 73 is hinged fixing, in concrete scheme, described supporting plate 70 is provided with connecting rod 77, the middle part of described fork 73 is hingedly fixed on described connecting rod 77, the other end of described fork 73 and the upper end of described latch are hinged, the lower end of described latch is used for inserting the jack 76 of being located on described cabinet door.
Solid loop-net cabinet is in "on" position, in the jack 76 on the lower end insertion cabinet door of latch, and when needs overhaul, operation isolation rotating shaft counterclockwise, isolating switch separating brake; Operational grounding ground connection rotating shaft clockwise, isolating switch ground connection, simultaneously, the ground connection rotating shaft is by 71 rotations of transmission mechanism band moving cam, cam 71 will drive pull bar 72 and move down, and the lower end of pull bar 72 drives latch by fork 73 and moves up, in the jack 76 on latch disengaging cabinet door, remove latch to the locking action of cabinet door, can pull open the cabinet door this moment; After the solid insulation ring main unit maintenance is complete, the rotating shaft of rotation ground connection, the ground connection rotating shaft is by 71 rotations of transmission mechanism band moving cam, cam 71 will drive pull bar 72 and move up, the lower end of pull bar 72 drives latch by fork 73 and moves down, in jack 76 on latch insertion cabinet door, realize the locking of cabinet door.
This door lock mechanism can be guaranteed just can open the cabinet door after isolating switch ground connection, can avoid isolating switch ground connection just not being opened the generation of the situation of solid insulation switch cabinet, has eliminated the possibility that causes serious security incident.
In preferred scheme, the through hole of supporting plate 70 is passed in the lower end of described pull bar 72, being positioned on the described pull bar 72 of described supporting plate both sides Shang Xia 70 respectively, thread connection has the first packing ring 78, stop nut, has default spacing between described the first packing ring 78, described stop nut, described predeterminable range is used for limiting the scope that pull bar 72 moves up and down, and then limits the distance that latch inserted and broke away from jack 76.
Further in scheme, in order to improve the stability of the first packing ring 78, can below the first packing ring 78, nut 711 be set.
in more excellent scheme, after latch breaks away from jack 76, the cabinet door of solid insulation ring main unit is opened, at this moment, in order to prevent that latch from falling, when closing the cabinet door, latch can't insert in jack 76 again, be fixed with the second packing ring 79 above described pull bar 72 the above the first packing ring 78, described the first packing ring 78, be provided with spring 712 between described the second packing ring 79, after latch breaks away from jack 76, pull bar 72 moves down, the first packing ring 78 and nut 711 are against supporting bracket, under the reaction force of supporting bracket, the first packing ring 78 and nut 711 Compress Spring 712 that will make progress, under the pretightning force effect of spring 712, pull bar 72 is in the position that moves down all the time, it is the top that latch is in jack 76 all the time, can prevent that latch from falling, when closing the cabinet door, latch also can insert in jack 76 smoothly.
In preferred scheme, in order to adjust the length of latch, described latch comprises inserted link 74 and plug 75, described inserted link 74 passes through thread connection with described plug 75, in concrete scheme, the lower end of described inserted link 74 has internal thread hole, and the upper end of described plug 75 has external screw thread, the lower end of the upper end of described plug 75 and described inserted link 74 forms thread connection, and this structure can be adjusted the length of latch as required.
Further in scheme, in order to make being connected firmly between inserted link 74 and plug 75, can be provided with clamp nut at the thread connection place of described plug 75 and described inserted link 74.
Set solid loop-net cabinet and be in "on" position, operating sequence when needs overhaul: press separating brake switch 143, breaker open operation; Turn clockwise interlock plate handle hole 303, open isolated operation hole 301, operation isolation operating side counterclockwise, isolating switch separating brake; Counterclockwise interlock plate handle hole 303 is closed isolated operation hole 301, opens ground connection handle hole 302, operational grounding operating side clockwise, and isolating switch ground connection, simultaneously, door lock mechanism 120 is extracted latch the jack 76 from the cabinet door; Hand puts in door handle 121 and upwards mentions and open cabinet door 110.
The above is only the description of the preferred implementation of invention; should be understood that; finiteness due to literal expression; and objectively have unlimited concrete structure; for those skilled in the art; under the prerequisite that does not break away from the principle of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.

Claims (8)

1. a solid insulation ring main unit, is characterized in that, comprises cabinet, cabinet door, door lock mechanism, two station mechanisms, three-position switch operation mechanism and pole;
Described pole comprises insulator, two station vacuum arc extinguish chambers, three station vacuum arc extinguish chambers, the first insulated tension pole, the second insulated tension pole; Described two station vacuum arc extinguish chambers, described three station vacuum arc extinguish chambers are embedded in respectively in first cavity, the second cavity of described insulator; The first insulated tension pole, the second insulated tension pole are connected with the moved end of described two station vacuum arc extinguish chambers, the moved end of described three station vacuum arc extinguish chambers respectively, the moved end of the moved end of described two station vacuum arc extinguish chambers, described three station vacuum arc extinguish chambers connects by connector, and described the first insulated tension pole, the second insulated tension pole, described connector all are positioned at the 3rd cavity of described insulator; The inlet wire conducting rod of described two station vacuum arc extinguish chambers, the outlet conductive pole of described three station vacuum arc extinguish chambers and earth terminal all extend described insulator.
2. solid insulation ring main unit according to claim 1, it is characterized in that, described earth terminal comprises earth terminal and ground stud, described earth terminal is connected with the moved end of described three station vacuum arc extinguish chambers, described ground stud is connected with described earthing device, and described ground stud extends described insulator.
3. solid insulation ring main unit according to claim 2, it is characterized in that, at least one in described outlet conductive pole, inlet wire conducting rod, described earth terminal, described ground stud and described insulator envelope place admittedly are provided with gauze screen, and the wiring pile end face of described gauze screen extends described insulator.
4. according to claim 1-3 described solid insulation ring main units of any one, it is characterized in that, described three-position switch operation mechanism comprises the isolation rotating shaft, the ground connection rotating shaft, the first gear mechanism, power transmission shaft, the second gear mechanism, three position actuators, described isolation rotating shaft one end, one end of ground connection rotating shaft forms respectively the isolated operation end, the ground connection operating side, the other end of described isolation rotating shaft, the other end of ground connection rotating shaft, one end of power transmission shaft carries out transmission by described the first gear drive, the driving gear center of the other end of described power transmission shaft and described the second gear drive is connected, the driven gear center of described the second gear drive is connected with three position actuators by connecting axle, three position actuators have isolating switch moving contact connecting portion.
5. solid insulation ring main unit according to claim 4, is characterized in that, described three position actuators comprise cam, connecting rod; Described cam is provided with chute, and described chute comprises the first segmental arc chute with different arc radius, the second segmental arc chute, the 3rd segmental arc chute that is communicated with successively; The upper end of described connecting rod is provided with pivot pin, and described bearing pin is movably connected in described chute, and the lower end of described connecting rod is provided with the isolating switch moving contact connecting portion for the insulated tension pole that connects isolating switch; The pivot of described cam is connected with described connecting axle.
6. solid insulation ring main unit according to claim 5, it is characterized in that, described door lock mechanism comprises cam, pull bar, fork, latch, described cam is connected with the ground connection rotating shaft of three-position switch operation mechanism by transmission mechanism, described cam is provided with chute, described chute comprises the circular arc with different radii of two sections connections, the upper end of described pull bar is stuck in described chute by pivot pin, one end of the lower end of described pull bar and described fork is hinged, the middle part of described fork is hinged fixing, the other end of described fork and the upper end of described latch are hinged, the lower end of described latch is used for inserting the jack of being located on described cabinet door.
7. solid insulation ring main unit according to claim 6, it is characterized in that, the through hole of supporting plate is passed in the lower end of described pull bar, being positioned on the described pull bar of both sides, described supporting plate up and down respectively, thread connection has the first packing ring, stop nut, has default spacing between described the first packing ring, described stop nut, the top of the above the first packing ring of described pull bar is provided with the second packing ring, is provided with spring between described the first packing ring, described the second packing ring.
8. solid insulation ring main unit according to claim 4, it is characterized in that, also comprise interlocking device, this interlocking device comprises all rotatable baffle plates, the first direction board, the second direction board, described baffle plate is arranged on described support by pivot pin is rotatable, described baffle plate is positioned at described isolated operation end, the outside of described ground connection operating side, described the first direction board, the inboard of described the second direction board is respectively equipped with can be against first grade of pin of described baffle plate outer, the second gear pin, by adjusting first grade of pin, the position of second gear pin, described baffle plate can be in and only block described isolated operation hole, only block described ground connection handle hole, block simultaneously described isolated operation hole, three positions of described ground connection handle hole.
CN201210595029.XA 2012-12-24 2012-12-24 A kind of solid insulation ring main unit Active CN103166143B (en)

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CN103166143A true CN103166143A (en) 2013-06-19
CN103166143B CN103166143B (en) 2015-12-09

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104269316A (en) * 2014-09-10 2015-01-07 平高集团有限公司 Solid-sealed polar pole and solid insulation ring main units using same
CN104269768A (en) * 2014-09-10 2015-01-07 平高集团有限公司 Shielding cover, embedded pole with shielding cover and solid insulation ring main unit with shielding cover
CN106253120A (en) * 2016-07-27 2016-12-21 张力 A kind of solid insulation switch integrating chopper and disconnecting switch
CN106569560A (en) * 2016-10-27 2017-04-19 曙光信息产业(北京)有限公司 Server box
CN106938573A (en) * 2016-01-05 2017-07-11 浙江开盛电气有限公司 A kind of door-plate of UV printing shapings

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CN202221735U (en) * 2011-08-09 2012-05-16 北京双杰电气股份有限公司 Three-position transmission device for isolating and grounding
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Publication number Priority date Publication date Assignee Title
CN104269316A (en) * 2014-09-10 2015-01-07 平高集团有限公司 Solid-sealed polar pole and solid insulation ring main units using same
CN104269768A (en) * 2014-09-10 2015-01-07 平高集团有限公司 Shielding cover, embedded pole with shielding cover and solid insulation ring main unit with shielding cover
CN104269316B (en) * 2014-09-10 2018-03-02 平高集团有限公司 Pole and the solid insulation ring main unit using the pole
CN106938573A (en) * 2016-01-05 2017-07-11 浙江开盛电气有限公司 A kind of door-plate of UV printing shapings
CN106253120A (en) * 2016-07-27 2016-12-21 张力 A kind of solid insulation switch integrating chopper and disconnecting switch
CN106253120B (en) * 2016-07-27 2018-06-26 张力 A kind of solid insulation switch for integrating breaker and disconnecting switch
CN106569560A (en) * 2016-10-27 2017-04-19 曙光信息产业(北京)有限公司 Server box

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