CN205354946U - Outdoor vacuum switch of high pressure with isolator - Google Patents
Outdoor vacuum switch of high pressure with isolator Download PDFInfo
- Publication number
- CN205354946U CN205354946U CN201521061709.9U CN201521061709U CN205354946U CN 205354946 U CN205354946 U CN 205354946U CN 201521061709 U CN201521061709 U CN 201521061709U CN 205354946 U CN205354946 U CN 205354946U
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- CN
- China
- Prior art keywords
- switch
- high voltage
- vacuum switch
- outdoor vacuum
- isolation switch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/46—Interlocking mechanisms
- H01H33/52—Interlocking mechanisms for interlocking two or more switches
Abstract
The utility model relates to an applied outdoor vacuum switch of high pressure with isolator's, especially totally enclosed all insulation outdoor high -voltage vacuum switch in the electric field of high -voltage switch. This high pressure outdoor vacuum switch include: insulating advance, be qualified for the next round of competitions (1), play left side insulator (4), right side insulator (7) supported with insulating effect, the isolator of dress in isolator chamber (20) sealed, that be full of liquid insulating silicone grease, outer conical power transformer (19), outer conical voltage transformer (5), outer conical arrester (15). Because the most pouring of the high voltage live body is in solid -state insulator, lid or conical surface insulating seal are also soaked by liquid insulator to naked part for the volume reduces by a wide margin. Adopt flute profile butt joint mode increase creepage distance between left side insulator (4), right side insulator (7), the butt joint face fills up and has fashioned silicon rubber insulation gasket (26) simultaneously, reaches the purpose of sealed insulation.
Description
Technical field
The present invention relates to the High Voltage Outdoor vacuum switch (3.6kV～40.5kV), the particularly high-pressure vacuum switch of outdoor hermetically sealed all insulation with isolation switch.
Background technology
At present, the known High Voltage Outdoor vacuum switch feature with isolation switch is as follows:
1. adopt gas medium to strengthen between electrical body and over the ground between insulation, reduce volume with this.This results in following problem:
A. the gas adopted is mostly SF6Gas, this kind of gas is very big to the adverse effect of environment, is the gas by environmental protection pact limiting emission；
B. along with the change of ambient temperature, the gas pressure in shell also can change, if poorly sealed, will reveal.After leakage, gas concentration can reduce, and affects insulating properties；
C. so long as not air, supplement at the scene with regard to bad, difficult in maintenance.
2. adopt insulation section bar to strengthen between electrical body and relatively between insulation, reduce volume with this.This results in following problem:
Between each phase conductor a., over the ground between, existing solid insulation also has air insulation, and because dielectric constant is different, field intensity is also different in different media for electric field.Electric field intensity in atmosphere is relatively strong, weak on the contrary in solid dielectric insulation.But, aero tolerant electric field intensity is low, and solid dielectric insulation is high on the contrary, and this will cause air-gap shelf depreciation and then puncture, and leads to a disaster；
B. owing to the kind of insulating part is too much, cost is also high；
C. the limited efficiency of volume is reduced.
3. external keeping apart pass, use air as isolation and switch each phase and dielectric relatively.Only switch arc-chutes solid dielectric insulation is fixed, supports and sealed.This results in following problem:
A. enough dielectric strengths are ensured it is necessary to there are enough gaps so that whole switchgear is bulky；
B. switchgear is bulky, necessarily causes high cost；
C. seal bad, will also result in internal condensation, affect insulating properties.The metalwork also easily corrosion of external isolation switch, affects electric conductivity.
No matter 4. adopting which kind of scheme above, as long as with isolation switch, no matter built-in or external, volume is all relatively larger, even cannot install.If additional miscellaneous equipment (such as mains transformer etc.) again, often can only be external, make equipment affected by environment seriously, increase accident rate.
Utility model content
The purpose of this utility model is in that to provide a kind of new-type High Voltage Outdoor vacuum switch with isolation switch for solving drawbacks described above.
Should include with the High Voltage Outdoor vacuum switch of isolation switch: insulated left side body；Side insulation right body；Lead-out wire；Insulated tension pole chamber；Current transformer；Taper voltage transformer；Vacuum interrupter；Switch spindle；Contact stage clip；Connecting lever；Isolation switch cavity；Isolation moving contact；Isolation switch insulation axle；Zero sequence current mutual inductor；Insulated tension pole；Spring touch finger；Taper spark gap；Mains transformer and fastp-acting fuse etc..
The above-mentioned High Voltage Outdoor vacuum switch with isolation switch, it is characterised in that: isolation switch movable contact, static contact are placed in the cavity of full liquid dielectric silicone grease of side insulation right body, had both ensured enough dielectric strengths, and taken again only small volume.Interface between two insulators of left and right side is zigzag, and is lined with silicone rubber pad and ensures not have leakage current and pass through.
The above-mentioned High Voltage Outdoor vacuum switch with isolation switch, it is characterized in that: lead-out wire, current transformer, vacuum interrupter, zero sequence current mutual inductor are all cast in solid isolation body, and need the taper voltage transformer changed, taper spark gap, mains transformer to adopt inside and outside cone connect and seal.
Take above-mentioned design, it is possible to reach following beneficial effect:
1. vacuum interrupter, current transformer etc. are embedded in solid insulator without the parts changed, volume have been dramatically reduced, have reduced cost；
2. isolation switch is placed in the cavity of full liquid dielectric silicone grease (never solidification), considerably reduces the volume of isolation switch；
3. the mains transformer needing maintenance to change, voltage transformer, spark gap are designed as outer bevel-type structure, are inserted in the insulator of internal cone type, compress and seal, make current-carrying part connect simultaneously.Insulate because of interfacial seal, it is possible to make volume significantly reduce；
4. fastp-acting fuse being placed in the male-tapered head of mains transformer, two conical heads are inserted respectively in internal tapered hole (taking both sides phase power supply), have both ensured the safety of transformator, and have also reduced the space taken；
5. insulated tension pole is arranged in the air chamber of a surrounding insulation, reduces the space taken；
6. after High Voltage Outdoor vacuum switch separating brake, ability disconnecting switch operation separating brake, it is ensured that energy isolation voltage, it is ensured that safety.During combined floodgate, first disconnecting switch operation, make to keep apart pass and close a floodgate, then the action of switching mechanism ability, makes arc-chutes close a floodgate.Between switch and isolation switch, design has the interlock meeting above-mentioned condition, simple, safe and reliable；
Accompanying drawing explanation
Fig. 1 is this High Voltage Outdoor vacuum switch front view；
Fig. 2 is that the A-A of this High Voltage Outdoor vacuum switch is to sectional view；
Fig. 3 is that the B-B of this High Voltage Outdoor vacuum switch is to sectional view；
Fig. 4 is this High Voltage Outdoor vacuum switch top view (insulated conductor outlet method)；
Fig. 5 is this High Voltage Outdoor vacuum switch top view (bare conductor outlet method).
In figure: 1-insulate into and out of line；2-Silicone Rubber Inhibitor；3-current transformer；4-insulated left side body；5-taper voltage transformer；6-vacuum interrupter；7-side insulation right body；8-moved end conductor introduction；9-spring touch finger；10-main shaft；11-contact stage clip；12-connecting lever；13-insulated tension pole；14-upper cover plate；15-taper spark gap；16-insulated tension pole chamber；17-zero sequence current mutual inductor；18-fastp-acting fuse；19-mains transformer；20-is full of the isolation switch cavity of liquid dielectric silicone grease；21-isolation switch insulation axle；22-hold-down bolt；23-lower cover；24-sector isolation switch movable contact；25-arc-chutes moving conductive rod；26-silicon rubber insulation pad；27-operating mechanism；28-sealing bolt；29-steam vent；30-side plate；31-bearing holder (housing, cover)；32-dynamic seal ring；33-bearing；34-isolates connecting lever；35-disc spring；36-terminals.
Detailed description of the invention
Should include with the High Voltage Outdoor vacuum switch of isolation switch:
(1) insulation is connected use into and out of line 1-with an outside wire；
(2) Silicone Rubber Inhibitor 2-resisting ultraviolet radiation is to insulator and protective effect；
(3) current transformer 3-measures every phase current use；
(4) insulated left side body 4-plays the effect supporting and insulating.By the restriction of processing technique, whole insulator is divided into insulated left side body (4) and side insulation right body (7)；
(5) taper voltage transformer 5-measures every phase voltage and residual voltage use；
(6) vacuum interrupter 6-cut-offs, connects primary circuit electric current use；
(7) side insulation right body 7-plays the effect supporting and insulating.；
(8) moved end conductor introduction 8-vacuum interrupter (6) lead-out wire is used；
(9) between spring touch finger 9-moved end conductor introduction (8) and arc-chutes moving conductive rod (25), sliding contact is used；
(10) main shaft 10-transmission three-phase vacuum interrupter (6) quick acting is used；
(11) contact stage clip 11-ensures have enough contact pressures to use between vacuum interrupter (6) dynamic and static contact；
(12) connecting lever 12-transmission is used；
(13) insulated tension pole 13-transmission and insulation are used；
(14) upper cover plate 14-seals protection use；
(15) taper spark gap 15-protects equipment and line over-voltage to use；
(16) insulated tension pole chamber 16-built-in insulation pull bar (13) is used；
(17) zero sequence current mutual inductor 17-measures zero-sequence current use；
(18) fastp-acting fuse 18-protects mains transformer (19) to use；
(19) mains transformer 19-provides all operations, controls power supply use, each one of line both sides；
(20) the isolation switch cavity 20-of full liquid dielectric silicone grease lays isolation switch sealed storage insulation silicone grease reinforced insulation intensity use；
(21) isolation switch insulation axle 21-transmission the use that insulate；
(22) hold-down bolt 22-fastens disc spring (34) and location use；
(23) lower cover 23-seals protection use；
(24) fan-shaped isolation switch movable contact 24-connects conduction and buffer action；
(25) arc-chutes moving conductive rod 25-uses to outer lead；
(26) silicon rubber insulation pad 26-plays the effect sealing and insulating；
(27) operating mechanism 27-switch and isolator operation, interlocking use；
(28) sealing bolt 28-fills silicone grease and sealed after being vacuumized use；
(29) steam vent 29-fills silicone grease and aerofluxus use；
(30) side plate 30-resisting ultraviolet radiation is to insulator and protective effect；
(31) bearing holder (housing, cover) 31-block bearing (32) and dynamic seal ring (31) are used；
(32) dynamic seal ring 32-sealing function；
(33) bearing 33-support rotating is used；
(34) isolation connecting lever 34-supports fixed sectors isolation switch movable contact (24) use；
(35) disc spring 35-ensures that sector isolation switch movable contact (24) and static contact have enough pressure to use；
(36) terminals 36-connects naked aerial condutor use.
Below in conjunction with accompanying drawing 1～5 and embodiment, the invention will be further described:
1. with the High Voltage Outdoor vacuum switch structure main points of isolation switch:
1. three-phase vacuum interrupter (6), lead-out wire (1) and current transformer (3) are all embedded in insulated left side body (4), constitute parts；
2. lead-out wire (1), current transformer (3), zero sequence current mutual inductor (17) etc. are embedded in side insulation right body (7), constitute parts；
3. isolation switch is placed on the isolation switch cavity (20) being full of insulation silicone grease, had both ensured enough dielectric strengths, and had also reduced volume；
4. insulated left side body (4) and side insulation right body (7) interface are profile of tooth, are padded with silicon rubber insulation pad (26) and fasten (see accompanying drawing 1).Owing to contact surface is profile of tooth, effectively increase creep age distance；
5. taper voltage transformer (5) is outer bevel-type, is inserted respectively into side insulation right body (7), insulated left side body (4), finally fit sealing again.The volume that safety is high, take is very little；
6. two mains transformer (19) terminals are also outer bevel-types, and built-in fastp-acting fuse (18) is inserted respectively in insulated left side body (4) and side insulation right body (7), then fastens.The volume that safety is high, take is very little；
7. keeping apart to close is built in the isolation switch cavity (20) being full of insulation silicone grease, is full of the insulation silicone grease of liquid, had both ensured insulating properties, and the volume taken is also very little；
8. insulated tension pole (13) is built in air chamber (16), reduces the volume taken.
Electric current isolates switch movable contact (24) into and out of line (1) to vacuum interrupter (6), arc-chutes moving conductive rod (25), spring touch finger (9), moved end conductor introduction (8), sector by insulating, finally arrive the insulation of opposite side into and out of line (1), constitute complete galvanic circle, meanwhile, the connection in this loop and disjunction are again by on-off control.Additional current transformer (3) rises measures electric current use; taper voltage transformer (5) is used as to measure voltage and residual voltage use; taper spark gap (15) is as overvoltage protection use, and mains transformer (19) is used for power taking source.
2. vacuum switch close a floodgate, separating brake process:
Fig. 1 show switch separating brake after state.Under the drive of operating mechanism (27), main shaft (10) quickly turns clockwise, connecting lever (12) is driven to rotate clockwise, connecting lever (12) finally drives insulated tension pole (13) to be moved to the left and makes vacuum interrupter (6) dynamic and static contact and have certain contacting travel, completes to close a floodgate.On the contrary, under the drive of operating mechanism (27), main shaft (10) quickly rotates counterclockwise, connecting lever (12) is driven to rotate counterclockwise, connecting lever (12) finally drives insulated tension pole (13) to move right to the specified of switch and opens from (see accompanying drawing 1), completes separating brake.
3. keep apart pass combined floodgate, separating brake process
Accompanying drawing 1 show isolation switch separating brake after state.During combined floodgate, fan-shaped isolation switch movable contact (24) rotates clockwise 90 ° around isolated insulation axle (21), fan-shaped isolation switch movable contact (24) connects with insulation moved end conductor introduction (8) into and out of line (1), completes to keep apart pass and closes a floodgate.Rotating counterclockwise 90 ° during separating brake again, both disconnect, and form isolation fracture.
Claims (6)
1. with the High Voltage Outdoor vacuum switch of isolation switch, it is characterised in that including: in movable end of arc extinguishing chamber conductor introduction (8) and insulation into and out of between line (1), the isolation switch cavity (20) of full liquid dielectric silicone grease.
2. the High Voltage Outdoor vacuum switch with isolation switch according to claim 1, it is characterized in that, also should include with the High Voltage Outdoor vacuum switch of isolation switch: the flute profile interface adopted between side insulation right body (7), insulated left side body (4) and silicon rubber insulation pad (26).
3. the High Voltage Outdoor vacuum switch with isolation switch according to claim 1, it is characterised in that also should include with the High Voltage Outdoor vacuum switch of isolation switch: the insulated tension pole chamber (16) of built-in insulated tension pole (13).
4. the High Voltage Outdoor vacuum switch with isolation switch according to claim 1, it is characterised in that also should include with the High Voltage Outdoor vacuum switch of isolation switch: with the outer bevel-type mains transformer (19) of fastp-acting fuse (18).
5. the High Voltage Outdoor vacuum switch with isolation switch according to claim 1, it is characterised in that also should include with the High Voltage Outdoor vacuum switch of isolation switch: taper spark gap (15).
6. the High Voltage Outdoor vacuum switch with isolation switch according to claim 1, it is characterised in that also should include with the High Voltage Outdoor vacuum switch of isolation switch: taper voltage transformer (5).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2015205699690 | 2015-08-03 | ||
| CN201520569969 | 2015-08-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205354946U true CN205354946U (en) | 2016-06-29 |
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510952976.3A Active CN105428145B (en) | 2015-08-03 | 2015-12-21 | High-voltage outdoor vacuum switch with isolating switch |
| CN201521061709.9U Active CN205354946U (en) | 2015-08-03 | 2015-12-21 | Outdoor vacuum switch of high pressure with isolator |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510952976.3A Active CN105428145B (en) | 2015-08-03 | 2015-12-21 | High-voltage outdoor vacuum switch with isolating switch |
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| CN (2) | CN105428145B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105428145A (en) * | 2015-08-03 | 2016-03-23 | 华电高科(北京)电气有限公司 | High-voltage outdoor vacuum switch with isolating switch |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20023977U1 (en) * | 2000-01-28 | 2008-07-03 | Siemens Aktiengesellschaft | Circuit-breaker device with busbar connections and branch lines |
| CN101329964B (en) * | 2008-04-25 | 2012-02-01 | 西安交通大学 | Non-SF6 gas insulative outdoor high voltage vacuum breaker |
| CN103681093A (en) * | 2013-12-03 | 2014-03-26 | 沈阳昊诚电气股份有限公司 | Outdoor solid insulation switch |
| CN203942194U (en) * | 2014-05-15 | 2014-11-12 | 华电高科(北京)电气有限公司 | Novel solid insulation high voltage switchgear |
| CN105428145B (en) * | 2015-08-03 | 2020-04-03 | 华电高科(北京)电气有限公司 | High-voltage outdoor vacuum switch with isolating switch |
-
2015
- 2015-12-21 CN CN201510952976.3A patent/CN105428145B/en active Active
- 2015-12-21 CN CN201521061709.9U patent/CN205354946U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105428145A (en) * | 2015-08-03 | 2016-03-23 | 华电高科(北京)电气有限公司 | High-voltage outdoor vacuum switch with isolating switch |
| CN105428145B (en) * | 2015-08-03 | 2020-04-03 | 华电高科(北京)电气有限公司 | High-voltage outdoor vacuum switch with isolating switch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105428145B (en) | 2020-04-03 |
| CN105428145A (en) | 2016-03-23 |
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| GR01 | Patent grant |