CN106469627B - Switch device capable of selecting phase operation - Google Patents
Switch device capable of selecting phase operation Download PDFInfo
- Publication number
- CN106469627B CN106469627B CN201510511353.2A CN201510511353A CN106469627B CN 106469627 B CN106469627 B CN 106469627B CN 201510511353 A CN201510511353 A CN 201510511353A CN 106469627 B CN106469627 B CN 106469627B
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- China
- Prior art keywords
- crank arm
- metal shell
- circuit breaker
- mounting plate
- phase
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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
- H01H33/02—Details
- H01H33/53—Cases; Reservoirs, tanks, piping or valves, for arc-extinguishing fluid; Accessories therefor, e.g. safety arrangements, pressure relief devices
-
- 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
- H01H33/022—Details particular to three-phase circuit breakers
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Gas-Insulated Switchgears (AREA)
Abstract
The invention discloses a phase-selective operation switching device, which comprises a metal shell, a three-phase circuit breaker, three independent operation devices and three independent transmission mechanisms. The metal shell is provided with a closed chamber. The three-phase circuit breaker is arranged in a metal shell, and each phase circuit breaker is provided with a moving contact. The three independent operating devices are arranged outside the metal shell. The three independent transmission mechanisms are arranged outside the metal shell, the three operation devices and the three independent transmission mechanisms are connected with the three-phase circuit breaker in a one-to-one correspondence mode, each operation device can independently actuate the moving contact of the corresponding circuit breaker through the corresponding transmission mechanism, and the three operation devices can respectively drive the moving contacts of the three-phase circuit breaker to synchronously act through the three independent transmission mechanisms. The invention has the following beneficial effects: the switching device has the performance of scheduled inter-pole asynchronous operation, and the size of the metal shell is not increased, so the switching device has the advantage of miniaturization.
Description
Technical Field
The invention relates to the field of three-phase type switch devices, in particular to a control device for a moving contact of a breaker of a three-phase switch component.
Background
The existing 110kV high-voltage switch equipment on the market is mainly characterized in that a three-pole circuit breaker arc extinguish chamber is completely installed in a metal shell filled with insulating gas, and an operating mechanism drives the three-pole circuit breaker arc extinguish chamber to move simultaneously. In some cases, however, it is necessary to operate each pole of the circuit breaker arc extinguishing chamber by a separate operating mechanism, giving the switchgear the capability of having a predetermined pole-to-pole asynchronous operation. At present, independent operating mechanisms respectively and independently drive three-pole circuit breaker arc extinguish chambers to move, and the technology is also disclosed in certain voltage fields such as more than 220kV, for example, the disclosure date is 1996 year 4, month 17, and Chinese patent disclosure No. 1120754A discloses a fully-closed combined electrical apparatus, each phase circuit breaker of the fully-closed combined electrical apparatus is controlled by an independent driving device, but three metal shells are provided, and each phase circuit breaker is installed in one metal shell. Therefore, more structural parts are used, particularly three metal shells are used, more gas sealing surfaces are inevitably needed, and the gas leakage probability is increased; the use of three housings also increases the overall size of the switchgear, increases material costs, and in some cases increases the size unacceptably.
Disclosure of Invention
The invention provides a switch device which is miniaturized and can be operated by selecting phases, aiming at the defects of the prior art.
The purpose of the invention is mainly realized by the following technical scheme:
a phase-selectively operable switching apparatus comprising:
the metal shell is provided with a closed chamber;
the three-phase circuit breakers are arranged in the metal shell, and each phase circuit breaker is provided with a moving contact;
three independent operating devices arranged outside the metal shell; and
three independent drive mechanism establishes outside the metal casing, and this three operating means, three independent drive mechanism are connected with three-phase circuit breaker one-to-one, make each operating means can both actuate the moving contact of the circuit breaker that corresponds through the drive mechanism that corresponds alone, and three operating means can drive the moving contact synchronous motion of three-phase circuit breaker through three independent drive mechanism respectively moreover.
As a preferable aspect of this aspect, the following improvements can be made:
one preferred scheme is as follows: the metal shell is provided with an upper opening and a lower opening, the upper opening of the metal shell is fixedly provided with an upper mounting plate, the lower opening of the metal shell is fixedly provided with a lower mounting plate, the metal shell, the upper mounting plate and the lower mounting plate form the closed cavity, and the closed cavity is filled with insulating gas.
One preferred scheme is as follows: the three operating devices and the three transmission mechanisms are all arranged on the upper mounting plate; each phase of circuit breaker is provided with a static contact which is arranged on the lower mounting plate.
One preferred scheme is as follows: the three operating devices are arranged at intervals of straight lines, the three transmission mechanisms are arranged at intervals of straight lines, the three-phase circuit breaker is arranged at intervals of straight lines, and the three operating devices, the three independent transmission mechanisms and the three-phase circuit breaker are in one-to-one correspondence with each other at positions.
One preferred scheme is as follows: each operating device is provided with an output rod;
each movable contact is provided with an insulating pull rod;
the three transmission mechanisms have the same speed ratio, each transmission mechanism is internally provided with a transmission main shaft, a first crank arm and a second crank arm which can rotate relative to the metal shell, the output rod is in transmission connection with the first crank arm, the first crank arm is fixedly connected with the transmission main shaft, the second crank arm is pivoted with an insulating pull rod, the output rod drives the transmission main shaft to rotate through the first crank arm, the transmission main shaft drives the second crank arm to rotate, and the second crank arm drives the moving contact to slide through the insulating pull rod.
One preferred scheme is as follows: a crank arm box is fixedly arranged on the upper mounting plate, and a closed cavity is also formed between the crank arm box and the upper mounting plate; the transmission main shaft is rotatably connected with the crank arm box, and at least one end of the transmission main shaft can extend out of the crank arm box in a sealing manner in a rotating manner; the first crank arm is positioned outside the crank arm box and fixedly connected with the part of the transmission main shaft extending out of the crank arm box; the second crank arm is positioned in the crank arm box; one end of the insulated pull rod passes through the upper mounting plate in a sealing way and extends into the crank arm box.
One preferred scheme is as follows: each operating device, each transmission mechanism and each circuit breaker have the same external dimensions and mechanical characteristics.
Compared with the prior art, the technical scheme of the invention has the following beneficial effects:
thereby realize selecting looks operation to the circuit breaker at the time of the difference through setting up three independent operating means and come every looks circuit breaker, make switching device have the performance of predetermined interelectrode asynchronous operation, simultaneously, because this operating means is independent setting outside sealed metal casing, the three-phase circuit breaker is established in a metal casing, consequently can not increase metal casing's volume, switching device has miniaturized advantage.
Drawings
FIG. 1 is a side perspective view of the completed article of one embodiment of the present invention;
FIG. 2 is a front perspective view of the completed embodiment of FIG. 1;
fig. 3 is a top view of the completed embodiment of fig. 1.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.
As shown in fig. 1 and 2, fig. 1 shows a side perspective view of the finished product of this embodiment; fig. 2 shows a front perspective view of the finished product of this embodiment. The invention relates to a phase-selective operation switch device, which comprises a metal shell 1, an upper mounting plate 5 and a lower mounting plate 8, wherein the metal shell 1 is provided with an upper opening and a lower opening, the upper mounting plate 5 is fixedly arranged at the upper opening of the metal shell 1, the lower mounting plate 8 is fixedly arranged at the lower opening of the metal shell 1, the upper mounting plate 5 and the lower mounting plate 8 form a closed chamber 6, and the closed chamber 6 is filled with insulating gas such as SF 6.
The metal shell 1 is internally provided with three- phase circuit breakers 2A, 2B and 2C, and three independent transmission mechanisms 3A, 3B and 3C and three independent operating devices 4A, 4B and 4B are arranged above the upper mounting plate 5. The three operating devices 4A, 4B and the three independent transmission mechanisms 3A, 3B and 3C are correspondingly connected with the three- phase circuit breakers 2A, 2B and 2C one by one, so that each operating device 4A, 4B and 4B can independently actuate the moving contacts of the corresponding circuit breakers 2A, 2B and 2C through the corresponding transmission mechanism 3A, 3B and 3C, and the three operating devices 4A, 4B and 4B can also drive the moving contacts of the three- phase circuit breakers 2A, 2B and 2C to synchronously act through the three independent transmission mechanisms 3A, 3B and 3C respectively. These three operating device 4A, 4B are sharp interval arrangement, and these three drive mechanism 3A, 3B, 3C are sharp interval arrangement, and this three- phase circuit breaker 2A, 2B, 2C are sharp interval arrangement, and three operating device 4A, 4B, three independent drive mechanism 3A, 3B, 3C, three- phase circuit breaker 2A, 2B, 2C's position one-to-one of locating moreover.
As shown in fig. 1, 2 and 3, each phase of the three-phase circuit breaker disposed in the metal housing 1 is provided with a circuit breaker 2A, 2B, 2C, each phase of the circuit breaker 2A, 2B, 2C includes an insulating pull rod 24A, 24B, 24C, an upper supporting insulator 21A, 21B, 21C, a movable contact 22A, 22B, 22C, a lower supporting insulator 25A, 25B, 25C, and a static contact disposed on the lower supporting insulator 25A, 25B, 25C, and the static contact is fixedly connected to the lower mounting plate 8 through the lower supporting insulator 25A, 25B, 25C. The upper ends of the insulating pull rods 24A, 24B and 24C hermetically extend out of the upper mounting plate of the metal shell 1 and are used for pivotally connecting the second crank arms 34A, 34B and 34C, and the lower ends of the insulating pull rods 24A, 24B and 24C are connected with the movable contacts 22A, 22B and 22C through the upper supporting insulators 21A, 21B and 21C so as to drive the movable contacts 22A, 22B and 22C to slide. The insulated tension rods 24A, 24B, 24C have the same length therebetween.
As shown in fig. 1, 2, and 3, the three independent operating devices 4 are defined as independent operating devices 4A, 4B, and 4B, respectively, and output levers 41A, 41B, and 41C are provided on the independent operating devices 4A, 4B, and 4B, respectively. The transmission mechanism 3 is defined as three independent transmission mechanisms 3A, 3B and 3C, each transmission mechanism 3A, 3B and 3C is respectively arranged corresponding to each operating device 4A, 4B and 4B, each transmission mechanism 3A, 3B and 3C is respectively provided with a transmission main shaft 32A, 32B and 32C, a first crank arm 33A, 33B and 33C and a second crank arm 34A, 34B and 34C, the transmission main shafts 32A, 32B and 32C can rotate relative to the metal shell 1, the transmission main shafts 32A, 32B and 32C are fixedly connected with the first crank arms 33A, 33B and 33C, the transmission main shafts 32A, 32B and 32C are fixedly connected with the second crank arms 34A, 34B and 34C, the output rods 41A, 41B and 41C are in transmission connection with first crank arms 33A, 33B and 33C, as the first crank arms 33A, 33B, 33C are pivotably connected to the free ends of the output levers 41A, 41B, 41C; the second crank arms 34A, 34B, 34C are pivotally connected to the insulating pull rods 24A, 24B, 24C, the output rods 41A, 41B, 41C drive the transmission main shafts 32A, 32B, 32C to rotate through the first crank arms 33A, 33B, 33C, the transmission main shafts 32A, 32B, 32C drive the second crank arms 34A, 34B, 34C to rotate, and the second crank arms 34A, 34B, 34C drive the movable contacts 22A, 22B, 22C to slide through the insulating pull rods 24A, 24B, 24C. The output rods 41A, 41B and 41C have the same length, the first crank arms 33A, 33B and 33C have the same length, and the second crank arms 34A, 34B and 34C have the same length, so that the speed ratios of the three transmission mechanisms are the same, and preferably, each operating device, each transmission mechanism and each circuit breaker have the same external dimension and mechanical property, so that the three operating devices can drive the movable contacts of the three-phase circuit breakers to synchronously operate through three independent transmission mechanisms respectively.
The upper mounting plate 5 is fixedly provided with crank arm boxes 31A, 31B and 31C, and the crank arm boxes 31A, 31B and 31C and the upper mounting plate 5 form a closed cavity respectively; the transmission main shafts 32A, 32B and 32C are rotatably connected with the crank arm boxes 31A, 31B and 31C, and at least one end of each transmission main shaft 32A, 32B and 32C can be hermetically and rotatably extended out of the crank arm boxes 31A, 31B and 31C; the first crank arms 33A, 33B, 33C are located outside the crank arm boxes 31A, 31B, 31C and are fixedly connected with the parts of the transmission main shafts 32A, 32B, 32C extending out of the crank arm boxes 31A, 31B, 31C; the second crank arms 34A, 34B, 34C are located in the crank arm boxes 31A, 31B, 31C; one end of the insulated tie bar 24A, 24B, 24C is sealed through the upper mounting plate 5 and extends into the crank case 31A, 31B, 31C.
When the switching device works, the output instruction of the operating device is transmitted to the first crank arms 33A, 33B and 33C through the output rods 41A, 41B and 41C, then transmitted to the second crank arms 34A, 34B and 34C through the transmission main shafts 32A, 32B and 32C by the first crank arms 33A, 33B and 33C, and then connected with the insulating pull rods 24A, 24B and 24C through the second crank arms 34A, 34B and 34C to drive the movable contacts 22A, 22B and 22C of each phase of circuit breakers 2A, 2B and 2C to move up and down, so that the switching device is switched on and off, and has the performance of different periods of operation between preset poles. Since each operating device 4A, 4B, each transmission mechanism 3A, 3B, 3C, and each circuit breaker 2A, 2B, 2C have the same external dimensions and mechanical characteristics, they can be used by exchanging each other, reducing the variety of components, improving the degree of serialization and standardization of the switchgear, and reducing the production cost.
Of course, on the premise of ensuring that the independent operating devices 4A, 4B and 4B have the same speed ratio and the circuit breakers 2A, 2B and 2C have the same speed ratio when being switched on, the operating device 4, the transmission mechanism 3 and the circuit breaker 2 can be arranged in different modes.
In summary, the phase-selective switching device realizes phase-selective operation of the circuit breakers at different times by arranging three independent operating devices to control each phase of circuit breaker independently, so that the switching device has the performance of different operations between preset poles and different periods, and simultaneously, because each operating device, each transmission mechanism and each circuit breaker respectively have the same external dimension and mechanical characteristics, the serialization and standardization degree of the switching device are improved, and the switching device has the advantage of low production cost.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (3)
1. Switching device operable in a phase-selective manner, characterized by: the method comprises the following steps:
the metal shell is provided with a closed chamber;
the three-phase circuit breakers are arranged in the metal shell, and each phase circuit breaker is provided with a moving contact;
three independent operating devices arranged outside the metal shell; and
the three independent transmission mechanisms are arranged outside the metal shell, and the three operation devices, the three independent transmission mechanisms and the three-phase circuit breaker are connected in a one-to-one correspondence manner, so that each operation device can independently actuate the moving contact of the corresponding circuit breaker through the corresponding transmission mechanism, and the three operation devices can respectively drive the moving contacts of the three-phase circuit breaker to synchronously act through the three independent transmission mechanisms;
the metal shell is provided with an upper opening and a lower opening, the upper opening of the metal shell is fixedly provided with an upper mounting plate, the lower opening of the metal shell is fixedly provided with a lower mounting plate, the metal shell, the upper mounting plate and the lower mounting plate form the closed cavity, and SF6 is filled in the closed cavity;
the three operating devices and the three transmission mechanisms are all arranged on the upper mounting plate;
the three operating devices are linearly arranged at intervals, the three transmission mechanisms are linearly arranged at intervals, the three-phase circuit breakers are linearly arranged at intervals, and the three operating devices, the three independent transmission mechanisms and the three-phase circuit breakers are in one-to-one correspondence with the three-phase circuit breakers;
each operating device is provided with an output rod;
each movable contact is provided with an insulating pull rod;
the speed ratios of the three transmission mechanisms are the same, each transmission mechanism is internally provided with a transmission main shaft, a first crank arm and a second crank arm which can rotate relative to the metal shell, the output rod is connected with the first crank arm in a transmission way, the first crank arm is fixedly connected with the transmission main shaft, the second crank arm is pivoted with an insulating pull rod, the output rod drives the transmission main shaft to rotate through the first crank arm, the transmission main shaft drives the second crank arm to rotate, and the second crank arm drives the moving contact to slide through the insulating pull rod;
a crank arm box is fixedly arranged on the upper mounting plate, and a closed cavity is also formed between the crank arm box and the upper mounting plate; the transmission main shaft is rotatably connected with the crank arm box, and at least one end of the transmission main shaft can extend out of the crank arm box in a sealing manner in a rotating manner; the first crank arm is positioned outside the crank arm box and fixedly connected with the part of the transmission main shaft extending out of the crank arm box; the second crank arm is positioned in the crank arm box; one end of the insulated pull rod passes through the upper mounting plate in a sealing way and extends into the crank arm box.
2. The phase selectable operating switching device of claim 1 wherein: the three operating devices and the three transmission mechanisms are all arranged on the upper mounting plate; each phase of circuit breaker is provided with a static contact which is arranged on the lower mounting plate.
3. The phase selectable operating switching device of claim 1 wherein: each operating device, each transmission mechanism and each circuit breaker have the same external dimensions and mechanical characteristics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510511353.2A CN106469627B (en) | 2015-08-19 | 2015-08-19 | Switch device capable of selecting phase operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510511353.2A CN106469627B (en) | 2015-08-19 | 2015-08-19 | Switch device capable of selecting phase operation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106469627A CN106469627A (en) | 2017-03-01 |
| CN106469627B true CN106469627B (en) | 2020-01-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510511353.2A Active CN106469627B (en) | 2015-08-19 | 2015-08-19 | Switch device capable of selecting phase operation |
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| CN (1) | CN106469627B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2728057Y (en) * | 2004-06-25 | 2005-09-21 | 宁波天安（集团）股份有限公司 | Load switch of gas filled type ring net switching device |
| CN201417706Y (en) * | 2009-05-15 | 2010-03-03 | 山东泰开高压开关有限公司 | Single-phase operation circuit breaker of 145kV box separation composite electrical appliance |
| CN102509667A (en) * | 2011-10-18 | 2012-06-20 | 中国西电电气股份有限公司 | Transmission structure for high voltage switch |
| CN202712037U (en) * | 2012-05-16 | 2013-01-30 | 沈阳华德海泰电器有限公司 | Tank type high voltage vacuum circuit breaker with three-phase common structure |
| CN103180927A (en) * | 2010-12-20 | 2013-06-26 | 三菱电机株式会社 | Power switch device |
| CN104299836A (en) * | 2014-10-17 | 2015-01-21 | 宝鸡市西高电气科技有限公司 | Indoor high-voltage circuit breaker with single-phase operated three-phase permanent magnetic mechanism |
| CN204927168U (en) * | 2015-08-19 | 2015-12-30 | 厦门华电开关有限公司 | Optional switching device who operates mutually |
-
2015
- 2015-08-19 CN CN201510511353.2A patent/CN106469627B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2728057Y (en) * | 2004-06-25 | 2005-09-21 | 宁波天安（集团）股份有限公司 | Load switch of gas filled type ring net switching device |
| CN201417706Y (en) * | 2009-05-15 | 2010-03-03 | 山东泰开高压开关有限公司 | Single-phase operation circuit breaker of 145kV box separation composite electrical appliance |
| CN103180927A (en) * | 2010-12-20 | 2013-06-26 | 三菱电机株式会社 | Power switch device |
| CN102509667A (en) * | 2011-10-18 | 2012-06-20 | 中国西电电气股份有限公司 | Transmission structure for high voltage switch |
| CN202712037U (en) * | 2012-05-16 | 2013-01-30 | 沈阳华德海泰电器有限公司 | Tank type high voltage vacuum circuit breaker with three-phase common structure |
| CN104299836A (en) * | 2014-10-17 | 2015-01-21 | 宝鸡市西高电气科技有限公司 | Indoor high-voltage circuit breaker with single-phase operated three-phase permanent magnetic mechanism |
| CN204927168U (en) * | 2015-08-19 | 2015-12-30 | 厦门华电开关有限公司 | Optional switching device who operates mutually |
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| CN106469627A (en) | 2017-03-01 |
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