CN2379895Y - Mechanism for interlocking outdoor high voltage vacuum breaker and isolating switch - Google Patents
Mechanism for interlocking outdoor high voltage vacuum breaker and isolating switch Download PDFInfo
- Publication number
- CN2379895Y CN2379895Y CN 99228763 CN99228763U CN2379895Y CN 2379895 Y CN2379895 Y CN 2379895Y CN 99228763 CN99228763 CN 99228763 CN 99228763 U CN99228763 U CN 99228763U CN 2379895 Y CN2379895 Y CN 2379895Y
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- CN
- China
- Prior art keywords
- connecting lever
- interlock
- hinged
- connecting rod
- isolating switch
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- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a linkage mechanism of an outdoor high voltage vacuum circuit breaker and an isolating switch, which is formed by adding a linkage crank arm, a left linking rod, a right linking rod and a linkage extension spring on the basis of the prior operating mechanism. The utility model can be directly installed on a base box of the outdoor high voltage vacuum circuit breaker. The utility model fully utilizes the principle of four linking rods and uses an electric operating mechanism to automatically control the on-off of the isolating switch according to the set order when the high voltage vacuum circuit breaker is controlled to be on or off. The utility model has the advantages of reasonable design, simple structure, reliable operation, etc., and can satisfy the need of automatic power distribution.
Description
The utility model relates to a kind of operating mechanism of being furnished with the primary cut-out of isolating switch, belongs to the switchgear in the High-Voltage Electrical Appliances.
In order to ensure the safety of ultra-high-tension power transmission line maintaining, be installed in that primary cut-out on the ultra-high-tension power transmission line is mostly subsidiary isolating switch, isolating switch and primary cut-out are connected in series, and their uses that cooperatively interacts are the important electrical equipment of electric power system.Primary cut-out can be used as the cut-off point of connecting load, transfer load, cutting-off of short-circuit fault current, can not be as the power failure isolating points.Must be with isolating switch to be used so require outdoor circuit breaker.Isolating switch is not promptly only made cut-off point and is used only as separate the both sides power supply after the primary cut-out outage as isolating points.During operate as normal, primary cut-out and isolating switch all are in on-position, when needs are cut off the electricity supply, must cut off isolating switch behind the first cutoff high circuit breaker, and when energized, connect primary cut-out after then must connecting isolating switch earlier, misoperation will cause heavy losses and destruction to electric power system.Because separating brake, the closing time of circuit breaker and isolating switch are inconsistent, so, their operating mechanism is separate, wherein, circuit breaker uses electric operating mechanism, can carry out remote operation, and isolating switch all is a man-operating mechanism, on-the-spot manual operation can only be arrived, the needs of power distribution automation can not be satisfied.
The purpose of this utility model is a kind of simple in structure, reliable operation of design, can utilize electric operating mechanism also to control the mechanical type outdoor high-voltage vacuum breaker of isolating switch branch, combined floodgate and the link gear of isolating switch automatically at the branch of controlling high-pressure vacuum breaker, when closing a floodgate according to the sequencing of setting.
The utility model is existingly to comprise electric operating mechanism, the power transmission shaft that opens circuit, the pull bar that opens circuit, the connecting lever that opens circuit, separating brake extension spring, isolating power transmission shaft, isolate pull bar, isolate on the basis of outdoor high-voltage vacuum breaker of connecting lever, increasing the link gear of a cover three stations.This link gear mainly comprises the interlock connecting lever, left side connecting rod, right connecting rod and interlock extension spring, its installation site and annexation are: electric operating mechanism is installed in opening circuit between power transmission shaft and the isolation power transmission shaft of base member case, the interlock connecting lever is contained on the output shaft of electric operating mechanism, the right arm of interlock connecting lever and the left end of right connecting rod are hinged, it is hinged with the underarm of the connecting lever that opens circuit that the right-hand member of right connecting rod has long lumbar hole, the connecting lever that opens circuit is contained on the power transmission shaft that opens circuit, the right arm of connecting lever of opening circuit is hinged with the lower end of pull bar of opening circuit, and the separating brake extension spring is contained between the right side of the upper arm of the connecting lever that opens circuit and base member case; The left arm of interlock connecting lever and the right-hand member of left connecting rod are hinged, the left end of left side connecting rod is hinged with the galianconism of isolating connecting lever, isolate connecting lever and be contained in and isolate on the power transmission shaft, it is hinged with the lower end that isolates pull bar to isolate the long-armed of connecting lever, and the interlock extension spring is contained between the right side of the underarm of interlock connecting lever and base member case.
Accompanying drawing 1 is the structural representation of link gear of the present utility model at closing position;
Accompanying drawing 2 is that link gear in the accompanying drawing 1 is at the work relationship schematic diagram of three service positions in separating brake, combined floodgate and centre position.
Referring to accompanying drawing 1,3 among the figure, 5,7,10,13, the 17th, connecting pin, the 1st, the isolation power transmission shaft of isolating switch, the 2nd, the isolation connecting lever of isolating switch, the 4th, the isolation pull bar of isolating switch, the 6th, left connecting rod, the 8th, the output shaft of electric operating mechanism, the 9th, interlock connecting lever, the 11st, the interlock extension spring of interlock connecting lever, the 12nd, the arm of turning right, the 14th, long lumbar hole, 15 connecting levers that open circuit, the 16th, the power transmission shaft that opens circuit of high-pressure vacuum breaker, the 18th, the separating brake extension spring of the connecting lever that opens circuit, the 19th, the pull bar that opens circuit, the 20th, base member case.Wherein, electric operating mechanism and output shaft 8 thereof are installed on the base member case 20 that opens circuit between power transmission shaft 16 and the isolation power transmission shaft 1 by changing on the power transmission shaft that opens circuit that is directly installed on high-pressure vacuum breaker, interlock connecting lever 9 is contained on the output shaft 8 of electric operating mechanism, the right arm of interlock connecting lever and the left end of right connecting rod 12 are hinged with connecting pin 10, it is hinged with connecting pin 13 with the underarm of the connecting lever 15 that opens circuit that the right-hand member of right connecting rod has long lumbar hole 14, the connecting lever 15 that opens circuit is contained on the power transmission shaft 16 that opens circuit, open circuit connecting lever right arm with open circuit pull bar 19 the lower end with connecting pin 17 hinged, between the upper arm of the connecting lever that opens circuit and the right side base member case separating brake extension spring 18 is housed; The left arm of interlock connecting lever 9 and the right-hand member of left connecting rod 6 are hinged with connecting pin 7, the left end of left side connecting rod is hinged with connecting pin 5 with the galianconism of isolating connecting lever 2, isolating connecting lever 2 is contained on the isolation power transmission shaft 1, it is hinged with connecting pin 3 with the lower end that isolates pull bar 4 to isolate the long-armed of connecting lever, and interlock extension spring 11 is contained between the underarm and right side base cabinet of interlock connecting lever.When isolation pull bar 4 moves upward, the isolating switch separating brake when moving downward can be closed a floodgate isolating switch; When the pull bar 19 that opens circuit moves upward, primary cut-out can be closed a floodgate, when moving downward with the primary cut-out separating brake.Referring to accompanying drawing 2, I station among the figure is represented with solid line, for circuit breaker and isolating switch all at closing position, at this moment, separating brake extension spring 18 and interlock extension spring 11 all are in whole tension state, have bigger separating brake power, circuit breaker is to rely on the right arm of interlock connecting lever and right connecting rod to be in dead zone location the thrust of the connecting lever underarm that the opens circuit pull bar 19 that will open circuit greater than the pulling force of the extension spring 18 of opening circuit that is contained in the connecting lever upper arm that opens circuit is upwards promoted, and makes high-pressure vacuum breaker maintain closing position; Isolate connecting lever 3 and the galianconism of isolating connecting lever 3 is produced very big thrust, make isolate connecting lever long-armed will isolate pull bar and move to downwards and make isolating switch be in closing position because of the left arm of interlock connecting lever and left connecting rod are in dead zone location.The III station dots, for circuit breaker and isolating switch all are in the separating brake position.Chain-dotted line between I station and III station is the II station, in order to make figure unlikely too bad, the II station chain-dotted line of connecting pin present position that only draws, the II station is expressed as circuit breaker and is in the separating brake process and has utilized the separating brake extension spring that moving contact and fixed contact are separated, and the face isolating switch has just just begun the transient working position of separating brake; Perhaps be expressed as in making process, isolating switch has been finished combined floodgate, and circuit breaker has then just begun the transient working position of closing a floodgate.During sub-switching operation, as long as the snap close of electric operating mechanism is triped, interlock connecting lever 98 is rotated counterclockwise and moves the III station to from the I station along output shaft by the pulling force of interlock extension springs 11, when the right arm of interlock connecting lever 9 when the I station forwards the II station to, the connecting lever 15 that opens circuit loses the support of long lumbar hole 14 because of connecting pin 13, pulled to by separating brake extension spring 18 and to clockwise rotate, 17 of connecting pins spur the pull bar that opens circuit downwards, the moving contact of circuit breaker is separated and the open circuit electric current with fixed contact at first rapidly, and this moment, the left arm of interlock connecting lever 9 also moves to the II station by the I station, but because of rotating in the dead zone range of connecting pin 7 in four-bar linkage, very little to the influence of isolating connecting lever; When the interlock connecting lever again when the II station is rotated further the III station, connecting pin 13 slides into right-hand member from left end in long lumbar hole 14, inoperative to disconnect, but this moment, connecting pin 7 has continued to move downward outside dead zone range, the galianconism of isolating connecting lever 2 is spurred to the right, isolate the long-armed of connecting lever and then upwards rotate, will isolate pull bar 4 through connecting pin 3 and boost and make the isolating switch separating brake.Realized the purpose of separating brake behind disconnect elder generation separating brake, the isolating switch.During closing operation, the output shaft 8 of electric operating mechanism is done counterclockwise to rotate, drive interlock connecting lever 9 and forward the I station to through the II station from the III station, when the interlock connecting lever when the III station forwards the II station to, the galianconism that left side connecting rod promotes isolation connecting lever 2 clockwise rotates, making the long-armed downward pulling of isolating connecting lever 2 isolate pull bar makes isolating switch finish feed motion, and this moment, just slide in the long lumbar hole 14 of right connecting rod with the hinged connecting pin 13 of the connecting lever 15 of opening circuit and to finish, the connecting lever that opens circuit also upwards promotes the pull bar combined floodgate that opens circuit in the end, so isolating switch does not have loop current when closing a floodgate; Because the left arm of left connecting rod and interlock connecting lever is when the II station forwards the I station to, just in time be in the dead zone range in the four-bar linkage, although be rotated further this moment, but the effect to isolating switch is very little, and this moment, the connecting lever that opens circuit is but promoted to rotate counterclockwise by right connecting rod 12, and connecting pin 17 moves upward and circuit breaker is closed a floodgate rapidly.Behind the combined floodgate, the output shaft 8 of electric operating mechanism will no longer be rotated by automatic snap close, and separating brake extension spring 18 and interlock extension spring 11 are elongated and lay in enough separating brake power.Meet the requirements in the time difference of separating brake, combined floodgate in order to ensure isolating switch and vacuum circuit-breaker, the best sliding length of long lumbar hole on the right connecting rod 14 can be designed to 10-40MM, the top dead-centre of the connecting pin 7 that the left arm of interlock connecting lever and left connecting rod right-hand member are hinged is selected in interlock connecting lever axle 8 and isolates the 5-20MM place, top of the line of connecting lever galianconism connecting pin 5.
Link gear of the present utility model has the advantages such as reasonable in design, simple in structure and reliable operation, can be direct Be installed on the base member case of outdoor high-voltage vacuum breaker, can according to the sequencing of setting, utilize electronic behaviour Actuation mechanism is also controlled branch, the combined floodgate of isolating switch automatically at the branch of controlling high-pressure vacuum breaker, when closing a floodgate, can To satisfy the needs of power distribution automation.
Claims (2)
1. the link gear of outdoor high-voltage vacuum breaker and isolating switch, comprise electric operating mechanism, power transmission shaft opens circuit, pull bar opens circuit, connecting lever opens circuit, the separating brake extension spring, isolate power transmission shaft, isolate pull bar, isolate connecting lever, it is characterized in that also comprising the interlock connecting lever, left side connecting rod, right connecting rod and interlock extension spring, its installation site and annexation are: electric operating mechanism is installed in opening circuit between power transmission shaft and the isolation power transmission shaft on the base member case, the interlock connecting lever is contained on the output shaft of electric operating mechanism, the right arm of interlock connecting lever and the left end of right connecting rod are hinged, it is hinged with the underarm of the connecting lever that opens circuit that the right-hand member of right connecting rod has long lumbar hole, the connecting lever that opens circuit is contained on the power transmission shaft that opens circuit, the right arm of connecting lever of opening circuit is hinged with the lower end of pull bar of opening circuit, and the separating brake extension spring is contained between the right side of the upper arm of the connecting lever that opens circuit and base member case; The left arm of interlock connecting lever and the right-hand member of left connecting rod are hinged, the left end of left side connecting rod is hinged with the galianconism of isolating connecting lever, isolate connecting lever and be contained in and isolate on the power transmission shaft, it is hinged with the lower end that isolates pull bar to isolate the long-armed of connecting lever, and the interlock extension spring is contained between the right side of the underarm of interlock connecting lever and base member case.
2. the link gear of outdoor high-voltage vacuum breaker as claimed in claim 1 and isolating switch, it is characterized in that the best sliding length of long lumbar hole is 10-40MM on the right connecting rod, left arm and the left connecting rod right-hand member of interlock connecting lever is hinged is connected the 5-20MM place, top that the top dead-centre that disappears is selected in interlock connecting lever axle and the line of isolation connecting lever galianconism connecting pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99228763 CN2379895Y (en) | 1999-06-30 | 1999-06-30 | Mechanism for interlocking outdoor high voltage vacuum breaker and isolating switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99228763 CN2379895Y (en) | 1999-06-30 | 1999-06-30 | Mechanism for interlocking outdoor high voltage vacuum breaker and isolating switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2379895Y true CN2379895Y (en) | 2000-05-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99228763 Expired - Fee Related CN2379895Y (en) | 1999-06-30 | 1999-06-30 | Mechanism for interlocking outdoor high voltage vacuum breaker and isolating switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2379895Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101620941B (en) * | 2009-08-17 | 2011-12-14 | 崔军朝 | Low-pressure automatic disconnection switch |
| CN101937815B (en) * | 2009-06-30 | 2012-08-15 | 浙江赛菲特电气有限公司 | Linkage structure for upper contact seat and opening and closing mechanism in drop-out type fuse |
| CN101937805B (en) * | 2009-06-30 | 2013-04-17 | 浙江赛菲特电气有限公司 | Upper contact base of drop-out fuse |
| CN103065860A (en) * | 2013-01-04 | 2013-04-24 | 福建中能电气股份有限公司 | Novel three-position operating mechanism |
| CN106710950A (en) * | 2016-12-30 | 2017-05-24 | 华仪电气股份有限公司 | Interlocking operation mechanism and high-voltage switchgear therewith |
| CN109904930A (en) * | 2019-03-26 | 2019-06-18 | 石家庄科林电气股份有限公司 | Electric knife gate long-range control method based on line feed terminals |
-
1999
- 1999-06-30 CN CN 99228763 patent/CN2379895Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101937815B (en) * | 2009-06-30 | 2012-08-15 | 浙江赛菲特电气有限公司 | Linkage structure for upper contact seat and opening and closing mechanism in drop-out type fuse |
| CN101937805B (en) * | 2009-06-30 | 2013-04-17 | 浙江赛菲特电气有限公司 | Upper contact base of drop-out fuse |
| CN101620941B (en) * | 2009-08-17 | 2011-12-14 | 崔军朝 | Low-pressure automatic disconnection switch |
| CN103065860A (en) * | 2013-01-04 | 2013-04-24 | 福建中能电气股份有限公司 | Novel three-position operating mechanism |
| CN103065860B (en) * | 2013-01-04 | 2015-11-18 | 福建中能电气股份有限公司 | Three station operating mechanisms |
| CN106710950A (en) * | 2016-12-30 | 2017-05-24 | 华仪电气股份有限公司 | Interlocking operation mechanism and high-voltage switchgear therewith |
| CN106710950B (en) * | 2016-12-30 | 2018-09-25 | 华仪电气股份有限公司 | A kind of interlocking operation mechanism and the high-tension switch gear with it |
| CN109904930A (en) * | 2019-03-26 | 2019-06-18 | 石家庄科林电气股份有限公司 | Electric knife gate long-range control method based on line feed terminals |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: PATENTEE; FROM: TAIZHOU POWER MACHINERY CO., LTD. TO: JIANGYIN CITY YUNFENG ELECTRIC EQUIPMENT FACTORY |
|
| CP03 | Change of name, title or address |
Address after: 214422, 190 Jiangsu, Jiangyin Town, cloud Pavilion Street Patentee after: Jiangyin Yunfeng Electric Appliance Equipment Factory Address before: 225327, No. 8 South Yongan Road, Yongan Town, high port area, Jiangsu, Taizhou Patentee before: Taizhou City Electric Power Machinery Co., Ltd. |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |