CN101425420B - Mechanical interlocking disc type incorrect operation preventing interlocking apparatus for high-voltage switch cabinet - Google Patents
Mechanical interlocking disc type incorrect operation preventing interlocking apparatus for high-voltage switch cabinet Download PDFInfo
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- CN101425420B CN101425420B CN200710047608XA CN200710047608A CN101425420B CN 101425420 B CN101425420 B CN 101425420B CN 200710047608X A CN200710047608X A CN 200710047608XA CN 200710047608 A CN200710047608 A CN 200710047608A CN 101425420 B CN101425420 B CN 101425420B
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- circuit breaker
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- main shaft
- hammerlock
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- 230000007246 mechanism Effects 0.000 claims abstract description 25
- 230000000903 blocking effect Effects 0.000 claims description 10
- 230000002452 interceptive effect Effects 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 5
- 238000002955 isolation Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000008520 organization Effects 0.000 description 2
- 208000033999 Device damage Diseases 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
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Abstract
The invention relates to a mechanical locking-disc type misoperation-prevention interlocking device of a high-voltage switch cabinet, which comprises an interlocking control mechanism, a drag link, a pulling plate, a rotating-arm bracket, a rotating shaft, a rotating arm, a connecting plate, a splint, a mainshaft, a connecting lever, a tripping arm, a locking arm, a stop pin, a pressure plate, a microswitch and a circuit breaker connecting lever; a working position, a maintaining position and a control position of an operating position are arranged to ensure that an isolation switch and a circuit breaker can be interactively controlled through an interlocking way; when the operating position is in service, the interlocking device can ensure the mainshaft to drive the tripping arm and the locking arm to rotate so as to cause that a tripper trips and does tripping operation and the microswitch is cut off, thereby the hand-operated or electric closing operation of the circuit breaker can not be carried out; and when the working position is in service, the stop pin moves forward to lock the locking arm, the mainshaft and the interlocking control mechanism, thereby the misoperation of the isolation switch can be prevented. The invention has the advantages that the isolation switch and the circuit breaker are automatically and interactively interlocked; in addition, the structure is simple, the mechanism is flexible, the function is reliable, the appearance is beautiful, the installation is convenient, and the commonality is better.
Description
[technical field]
The present invention relates to the High voltage power supply equipment technical field, specifically, is a kind of high-voltage switch cabinet mechanical type locking disc type incorrect operation preventing interlocking apparatus that relates to the high pressure switchgear assembly.
[background technology]
At present, in the high-tension switch cabinet of power supplying and distributing equipment, mainly form current supply circuit by measurement, protection components such as executive components such as circuit breaker, isolating switch, earthed switch and instrument transformers.But present technology in use can occur causing short circuit or personnel to get an electric shock because of misoperation, makes device damage, casualties.According to GB/T 3906-91 standard, high-tension switch cabinet should have five perfect anti-error functions: (1) anti-error branch, close circuit breaker; (2) isolating switch is divided, closed to anti-bringing onto load mistake; (3) anti-personnel mistakenly entering charged chamber; (4) charged splice grafting ground switch; (5) antiground switch closing position send.
Now, the conjuncted type vacuum circuit-breaker of domestic high-tension switch cabinet, like the conjuncted type fixed installation of VS1-12, VD4-12 formula vacuum circuit-breaker, all subsidiary outer interlocking of joining; And do not have the high-voltage switch cabinet isolation switch of similar nonstandard cabinet and the incorrect operation preventing interlocking apparatus of VS1-12 or the conjuncted type fixed installation of VD4-12 formula vacuum circuit-breaker to supply on the market yet.Domestic traditional high-tension switch cabinet, like the HXGN-10 high-tension switch cabinet, movable procedure lock is generally adopted in the anti-misoperation of its isolating switch and conjuncted type vacuum circuit-breaker; But, but this movable procedure lock is because the moving-member people for a change becomes unreliable, also because movable part displacement sometimes causes it to use inconvenience.Nearly all high-tension switch cabinet is representative with the XGN2-10 high-tension switch cabinet, and its anti-misoperation apparatus all can not be accomplished when the beamhouse operation isolating switch, with the locking of the switch knob before the breaker mechanism, and cuts off the combined floodgate circuit.Therefore; Be necessary to design the isolating switch of high-tension switch cabinet and the mechanical type incorrect operation preventing interlocking apparatus of conjuncted type vacuum circuit-breaker; Interlock can be realized in the operating process of high-tension switch cabinet naturally: operation sequence is correct → operate successfully, and operation sequence is incorrect → and operate and get nowhere.
Our company once developed similarly interlock, had obtained certain effect; But from the interlock of existing high-tension switch cabinet, it exists not enough on versatility, but improvements are structurally also arranged.
[summary of the invention]
The objective of the invention is to overcome the deficiency of prior art; Exploitation and be provided for high-tension switch cabinet, have between certain versatility, structure single attractive in appearance, easy for installation, mechanical type locking disc type incorrect operation preventing interlocking apparatus that part universality is good; Interlock is realized in operating process naturally: operation sequence is correct, operate successfully, and operation sequence is incorrect, operation is unsuccessful.
The design concept of interlock of the present invention is: make the isolating switch of high-tension switch cabinet and conjuncted type vacuum circuit-breaker chain each other; That is: when interlocked control mechanism is allocated to operating position (operating condition that possesses isolating switch); Make circuit breaker tripping; Can not close a floodgate, stop manual, electric switch-on operation; When breaker closing, (isolating switch can not operating condition) can not be operated by interlocked control mechanism.
For realizing above goal of the invention; A kind of high-voltage switch cabinet mechanical type of the present invention locking disc type incorrect operation preventing interlocking apparatus contains interlocked control handle (mechanical type locking dish), first connecting lever, pull bar, arm-tie, pivoted arm support, rotating shaft, pivoted arm, yoke plate, clamping plate, main shaft, second connecting lever, the trip arm, hammerlock, backing pin, pressing plate, sensitive switch, closing coil (circuit breaker is subsidiary), blocking coil (circuit breaker is subsidiary), circuit breaker left end connecting lever; It is characterized in that interlocked control handle (mechanical type locking dish) is connected with an end of first connecting lever, forms an interlocked control mechanism; The other end of first connecting lever is connected with hanging pin with the upper end of pull bar, and the lower end of pull bar (screw shaped) is female with Luo to be connected with the upper end implementation scalable of arm-tie, and the lower end of arm-tie is connected with hanging pin with pivoted arm; Pivoted arm is connected on the pivoted arm support by roller pin; One end pin joint of the other end of pivoted arm and yoke plate, an end of the other end of yoke plate and second connecting lever is with hanging the pin pin joint, and the other end of second connecting lever is sleeved on an end of main shaft; This end of main shaft is sleeved on the pivoted arm support; The other end of main shaft puts in to tripping coil from the circuit breaker left plate, when putting in, the hammerlock that is socketed on the main shaft interlude is sleeved on the at interval left of circuit breaker; The trip arm that is sleeved on front-end of spindle is sleeved under the circuit breaker tripping coil backing pin and circuit breaker left end connecting lever pin joint; Sensitive switch is contained on the left wall at interval of a circuit breaker left side, presses down when hammerlock drives pressing plate, can sensitive switch be broken off; When hammerlock drive pressing plate breaks off sensitive switch, drive closing coil, blocking coil generation effect jointly, realize full cut-off lock manual, the electric switch-on operation.
Described interlocked control mechanism is provided with " working position ", " maintenance position " and " operative position " control bit, makes the interactive interlocked control of isolating switch and circuit breaker ability.
When chain controlling organization is allocated to " operative position "; The interlock transmission; Make main shaft drive the trip arm and hammerlock rotates through pivoted arm, yoke plate, second connecting lever, the trip arm makes the release tripping operation of triping, and hammerlock drives the sensitive switch disconnection that pressing plate will be connected with closing coil and blocking coil; Make circuit breaker can not carry out manual and/or electronic closing operation, guaranteed the safety of isolator operation.
When chain controlling organization is allocated to " working position ", with the backing pin reach of circuit breaker left end connecting lever pin joint, block hammerlock, main shaft can not be rotated; Cause interlocked control mechanism also to be locked, thereby stop the operation of interlocked control mechanism, stoped isolating switch by misoperation.
The good effect of a kind of high-voltage switch cabinet mechanical type of the present invention locking disc type incorrect operation preventing interlocking apparatus is:
(1) isolating switch and circuit breaker can interactive interlockings, and interlock is realized in operating process naturally: operation sequence correctly, operate successfully, operation sequence is incorrect, operation is unsuccessful.
(2) simple in structure, mechanism's odd jobs, reliable in function;
(3) good looking appearance, easy for installation, have a good versatility; Can be general cashier's office in a shop at two or more high-voltage switch gears, the high-tension switch cabinet that be particularly suitable for mechanical type locking disc type incorrect operation preventing interlocking apparatus, adopt VS1-12, the conjuncted type of VD4-12 fixedly mounts the formula vacuum circuit-breaker uses.
[description of drawings]
Accompanying drawing 2 is the structure cut-away view of pull bar of the present invention and main shaft coupling part.
Label among the figure is respectively:
01, interlocked control handle (mechanical type locking dish), 02, first connecting lever;
1, pull bar, 2, arm-tie, 3, the pivoted arm support, 4, rotating shaft, 5, pivoted arm, 6, yoke plate; 7, clamping plate, 8, main shaft, 9, second connecting lever, 10, the trip arm 11, hammerlock, 12, backing pin; 13, pressing plate, 14, sensitive switch, 15, closing coil, 16, blocking coil, 17, circuit breaker left end connecting lever;
A, " working position ", B, " maintenance position ", C, " operative position ".
[embodiment]
Provide embodiment of the present invention below in conjunction with accompanying drawing.
A kind of high-voltage switch cabinet mechanical type of the present invention locking disc type incorrect operation preventing interlocking apparatus contains interlocked control handle (mechanical type locking dish) 01, first connecting lever 02, pull bar 1, arm-tie 2, pivoted arm support 3, rotating shaft 4, pivoted arm 5, yoke plate 6, clamping plate 7, main shaft 8, second connecting lever 9, the trip arm 10, hammerlock 11, backing pin 12, pressing plate 13, sensitive switch 14, closing coil 15 (circuit breaker is subsidiary), blocking coil 16 (circuit breaker is subsidiary), circuit breaker left end connecting lever 17.
Referring to accompanying drawing 1.Interlocked control handle (mechanical type locking dish) 01 is a driving lever structural formula handle, and it is connected with an end of first connecting lever 02, forms an interlocked control mechanism; Upper end pin joint---the rotating connection of the other end of first connecting lever 02 and pull bar 1; Pull bar 1 can be made the flat body of rod of circle down; The upper end of flat bar shape is convenient to and first connecting lever, 02 pin joint, and the lower end of round bar shape (screw shaped) is convenient to carry out scalable with the upper end of arm-tie 2 with mother Luo and is connected.Referring to accompanying drawing 2, an end pin joint of the lower end of arm-tie 2 and pivoted arm 5; Pivoted arm 5 is a leg-of-mutton drive mechanism; Rotating shaft 4 pin joints through triangle upper end are on pivoted arm support 3; One end of pivoted arm 5 is connected with the lower end of arm-tie 2, an end pin joint of the other end of pivoted arm 5 and yoke plate 6, an end pin joint of the other end of yoke plate 6 and second connecting lever 9; The other end of second connecting lever 9 is right after (not rotatable connection), and at an end of main shaft 8, this end of main shaft 8 is sleeved on the pivoted arm support 3; Pivoted arm support 3 is for falling the structure of saddle, socket rotating shaft 4 and main shaft 8 in the convexity on saddle structure both sides, and the bottom of saddle structure is fixedly connected with the high-tension switch cabinet cabinet through clamping plate 7; The other end of main shaft 8 from the circuit breaker left plate put in to tripping coil down partially in; The hammerlock 11 (its cardinal extremity is provided with pressing plate 13) that when putting in, will be socketed on main shaft 8 interludes is sleeved on the at interval left of circuit breaker, and the trip arm 10 that is sleeved on main shaft 8 front ends is sleeved under the circuit breaker tripping coil; Backing pin 12 and circuit breaker left end connecting lever 17 pin joints; Sensitive switch 14 is contained on the left wall at interval of a circuit breaker left side; When hammerlock 11 actions can drive pressing plate 13 when putting in place sensitive switch 14 is broken off; Thereby realize full cut-off lock manual, the electric switch-on operation, and drive closing coil 15, blocking coil 16 common generation effects.
Interlocked control of the present invention mechanism is provided with " working position " A (vertical center), " maintenance position " B (pointing to right) and " operative position " C (pointing to a left side) third gear control bit, makes the interactive interlocked control of isolating switch and circuit breaker ability.Carry out isolating switch branch, closing operation; Must earlier interlocked control mechanism be allocated to " operative position " C (pointing to a left side); Interlock transmission this moment; Make main shaft 8 drive the trip arm 10 and hammerlock 11 rotates through pivoted arm 5, yoke plate 6, second connecting lever 9, the trip arm 10 makes the release tripping operation of triping, and hammerlock 11 rotates sensitive switch 14 disconnections that pressing plate 13 will be connected with closing coil 15 and blocking coil 16 when putting in place; Make circuit breaker can not carry out manual and/or electronic closing operation, guaranteed the safety of isolator operation.
After isolating switch branch, closing operation finish, must interlocked control mechanism be allocated to " working position " A (vertical center), the circuit breaker operation of could closing a floodgate.Behind the breaker closing, hammerlock 11 is pinned in backing pin 12 reaches that are connected with circuit breaker left end connecting lever 17, and main shaft 8 can not be rotated; Because of hammerlock 11, main shaft 8 are an integral body that is connected with interlocked control mechanism, pin hammerlock 11, main shaft 8 can not rotate, and causes interlocked control mechanism also to be locked, thereby has stoped the operation of interlocked control mechanism, has stoped isolating switch by misoperation.
The present invention has successfully avoided isolating switch bringing onto load separating brake, combined floodgate and the arc short-circuit phenomenon that causes; Realized the design philosophy of " operation sequence is correct, operate successfully; operation sequence is incorrect, operation is unsuccessful ", the generation of the accident of minimizing is used safer, reliable.
Claims (6)
1. a high-voltage switch cabinet mechanical type locking disc type incorrect operation preventing interlocking apparatus contains interlocked control handle (01), first connecting lever (02), pull bar (1), arm-tie (2), pivoted arm support (3), rotating shaft (4), pivoted arm (5), yoke plate (6), clamping plate (7), main shaft (8), second connecting lever (9), the trip arm (10), hammerlock (11), backing pin (12), pressing plate (13), sensitive switch (14), closing coil (15), blocking coil (16), circuit breaker left end connecting lever (17); It is characterized in that interlocked control handle (01) is connected with an end of first connecting lever (02), form interlocked control mechanism; The other end of first connecting lever (02) is connected with hanging pin with the upper end of pull bar (1), and the lower end of pull bar (1) is female with Luo to be connected with the upper end implementation scalable of arm-tie (2), and the lower end of arm-tie (2) is connected with hanging pin with pivoted arm (5); Pivoted arm (5) by rotating shaft (4) pin joint on pivoted arm support (3); One end pin joint of the other end of pivoted arm (5) and yoke plate (6), an end of the other end of yoke plate (6) and second connecting lever (9) is with hanging the pin pin joint, and the other end of second connecting lever (9) is sleeved on an end of main shaft (8); This end of main shaft (8) is sleeved on the pivoted arm support (3); The other end of main shaft (8) puts in to tripping coil from the circuit breaker left plate, and when putting in, the hammerlock (11) that will be socketed on main shaft (8) centre is sleeved on the at interval left of circuit breaker; The trip arm (10) that will be sleeved on main shaft (8) front end is sleeved under the circuit breaker tripping coil, backing pin (12) and circuit breaker left end connecting lever (17) pin joint.
2. a kind of high-voltage switch cabinet mechanical type locking disc type incorrect operation preventing interlocking apparatus according to claim 1; It is characterized in that; Described interlocked control mechanism be provided with " working position " (A), " maintenance position " (B) with " operative position " (C) control bit, make the interactive interlocked control of isolating switch and circuit breaker ability.
3. a kind of high-voltage switch cabinet mechanical type locking disc type incorrect operation preventing interlocking apparatus according to claim 2; It is characterized in that; When interlocked control mechanism is allocated to " operative position " (C) time; The interlock transmission makes main shaft (8) drive the trip arm (10) and hammerlock (11) rotation through pivoted arm (5), yoke plate (6), second connecting lever (9), and the trip arm (10) makes the release tripping operation of triping; Hammerlock (11) drives sensitive switch (14) disconnection that pressing plate (13) will be connected with closing coil (15) and blocking coil (16), makes circuit breaker can not carry out manual and/or electronic closing operation.
4. a kind of high-voltage switch cabinet mechanical type locking disc type incorrect operation preventing interlocking apparatus according to claim 2; It is characterized in that, when interlocked control mechanism is allocated to " working position " (A) time, with backing pin (12) reach of circuit breaker left end connecting lever (17) pin joint; Block hammerlock (11); Main shaft (8) can not be rotated, cause interlocked control mechanism also to be locked, thereby stop the operation of interlocked control mechanism.
5. a kind of high-voltage switch cabinet mechanical type locking disc type incorrect operation preventing interlocking apparatus according to claim 1; It is characterized in that; Described sensitive switch (14) is contained on the left wall at interval of a circuit breaker left side, and hammerlock (11) drives pressing plate (13) and presses down, and can sensitive switch (14) be broken off.
6. a kind of high-voltage switch cabinet mechanical type locking disc type incorrect operation preventing interlocking apparatus according to claim 5; It is characterized in that; When hammerlock (11) drive pressing plate (13) breaks off sensitive switch (14); Cut off the circuit of closing coil (15), blocking coil (16), produce locking jointly, realize full cut-off lock manual, the electric switch-on operation.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710047608XA CN101425420B (en) | 2007-10-30 | 2007-10-30 | Mechanical interlocking disc type incorrect operation preventing interlocking apparatus for high-voltage switch cabinet |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710047608XA CN101425420B (en) | 2007-10-30 | 2007-10-30 | Mechanical interlocking disc type incorrect operation preventing interlocking apparatus for high-voltage switch cabinet |
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| Publication Number | Publication Date |
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| CN101425420A CN101425420A (en) | 2009-05-06 |
| CN101425420B true CN101425420B (en) | 2012-11-14 |
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| CN110400709B (en) * | 2019-06-13 | 2022-06-17 | 广州致新电力科技有限公司 | Interlocking device for circuit breaker and three-position switch |
| CN111192776B (en) * | 2020-02-24 | 2025-01-07 | 正泰电气股份有限公司 | Mechanical interlocking device for disconnector and circuit breaker |
| CN111508736A (en) * | 2020-05-28 | 2020-08-07 | 江苏神一电气有限公司 | a chain operating mechanism |
| CN113394032A (en) * | 2021-07-09 | 2021-09-14 | 威胜电气有限公司 | Outdoor interlocking mechanism |
| CN115377843B (en) * | 2022-08-04 | 2024-10-18 | 江苏文广朱方新能源科技有限公司 | Misoperation-preventing interlocking device and switch cabinet using same |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2252399Y (en) * | 1995-08-04 | 1997-04-16 | 马鞍山钢铁股份有限公司 | High-tension vacuum circuit breaker mechanical interlock protector |
| CN200953292Y (en) * | 2006-09-26 | 2007-09-26 | 上海中科电气(集团)有限公司 | High-voltage switch cabinet anti-misoperating interlocking device |
| CN200959290Y (en) * | 2006-04-30 | 2007-10-10 | 上海中科电气(集团)有限公司 | Operating mechanical interlocking device against fault for high-voltage circular network cabinet |
-
2007
- 2007-10-30 CN CN200710047608XA patent/CN101425420B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2252399Y (en) * | 1995-08-04 | 1997-04-16 | 马鞍山钢铁股份有限公司 | High-tension vacuum circuit breaker mechanical interlock protector |
| CN200959290Y (en) * | 2006-04-30 | 2007-10-10 | 上海中科电气(集团)有限公司 | Operating mechanical interlocking device against fault for high-voltage circular network cabinet |
| CN200953292Y (en) * | 2006-09-26 | 2007-09-26 | 上海中科电气(集团)有限公司 | High-voltage switch cabinet anti-misoperating interlocking device |
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| CN101425420A (en) | 2009-05-06 |
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