CN102646543B - Interlocking device used for high-voltage switch equipment - Google Patents
Interlocking device used for high-voltage switch equipment Download PDFInfo
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- CN102646543B CN102646543B CN201210123635.1A CN201210123635A CN102646543B CN 102646543 B CN102646543 B CN 102646543B CN 201210123635 A CN201210123635 A CN 201210123635A CN 102646543 B CN102646543 B CN 102646543B
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Abstract
The invention discloses an interlocking device used for high-voltage switch equipment. The interlocking device comprises an isolation switch operation mechanism and a circuit breaker on-off mechanism and also comprises a transmission mechanism, wherein one end of the transmission mechanism is connected with a shifting fork of the isolation switch operation mechanism, the other end of the transmission mechanism is arranged at the bottom of a circuit breaker and is connected with the circuit breaker on-off mechanism, and the transmission mechanism comprises a link mechanism arranged at the outer side of the circuit breaker and a lever mechanism arranged at the inner side of a circuit breaker. The interlocking device used for the high-voltage switch equipment is arranged at the bottom of the circuit breaker, and therefore, compared with the existing interlocking device, the interlocking device used for the high-voltage switch equipment is simple in structure, flexible in transmission, safety in use, reliable in interlocking and convenient in manufacturing, installation and debugging.
Description
Technical field
The invention belongs to high-tension distribution equipment technical field, particularly relate to a kind of interlock of fixed high-voltage switch cubicle.
Background technology
Interlock between existing fixed high-voltage switch cubicle circuit breaker (mechanism and switch integrated) and isolating switch mainly meets the user when breaker closing can not make isolating switch disconnect or breaker open operation by disconnecting switch operation operating mechanism; When breaker open operation, user can make circuit breaker when " maintenance position " by disconnecting switch operation operating mechanism, can closing by hand, when " disjunction locking position ", keeps gate-dividing state.
Existing high-tension switch cabinet interlock is adopted in two ways mostly, a kind of be with steel wire rope by the shift fork on lock operation panel and tripping device for circuit breaker with together with, i.e. steel wire rope interlocking.The mode that the kinematic link that another kind utilizes the main shaft on circuit breaker and is arranged on breaker mechanism box top is connected with the operation board on lock operation panel, i.e. spindle top interlocking.Wherein, steel wire rope interlocking is passive interlocking, and operating personnel, often because operating physical force is improper or operation sequence is mistaken, are easy to make wire cable rupture, and interlock lost efficacy then.Spindle top interlock is arranged on breaker mechanism box top due to it, and by after circuit breaker and lock operation erecting of panel in switch cubicle, structural design is compact, and when assembling and setting personnel install this kind of interlock, space is very limited, is unfavorable for Installation and Debugging.And after switch cabinet combining, if interlock damages, the difficulty of replacing is very big.Such as, namely fixed metal closed high-voltage switching safety interlock for overhead disclosed in Chinese patent literature CN201758086U belongs to the mode of spindle top interlocking, it comprises isolation knife operating mechanism and import VD4 circuit-breaker switching on-off operating axis, safety interlock is provided with between isolation knife operating mechanism and import VD4 circuit-breaker switching on-off operating axis, wherein, safety interlock is: import VD4 circuit-breaker switching on-off operating axis is connected to one end of round connecting rod, the other end of circle connecting rod is connected to the end of lever connecting rod, the other end of lever connecting rod is arranged on the one end connecting bent plate, the other end connecting bent plate is connected with guide post, guide post acts on isolation knife operating mechanism handle.Move isolation knife operating mechanism confinement plate freely slide up and down by its operating axis, circle connecting rod, lever connecting rod, connecting bending strip during the divide-shut brake of the import VD4 circuit breaker of this kind of safety interlock for overhead, achieve each operating mechanism and interlock.But the kinematic link of this device is arranged on breaker mechanism box top, its installing space is limited, is unfavorable for installing and maintenance.
For solving the problems of the technologies described above; Chinese patent literature CN200959290Y discloses a kind of high-voltage ring main unit fault-operation mechanical interlocking device; comprise a high-voltage ring main unit cabinet and be located at isolating switch, the vacuum circuit-breaker summation current transformer in cabinet; its circuit breaker side is provided with upwards vertically arranged dropout activity push rod and closed bite restrictor bar; described dropout activity push rod connects with the iron core of the release electromagnet of circuit breaker, and described closed bite restrictor bar connects with the closing locking isolating switch connecting lever of circuit breaker; The opposite side of described transmission levers is provided with upwards vertically arranged drive rod, and this drive rod is connected with isolating-switch locking handle by a crank.This interlock structure is simple; But this interlock has following problem: 1. this interlock only realizes transmission, transmission underaction by an activation lever and a transmission levers, can have influence on the layout of functional unit; 2. this transmission mechanism can not adjust according to the size of cabinet, for dissimilar cabinet, the position of the length and balance pivot that can only redesign activation lever and transmission levers could meet transmission requirement, and due to the arm of force of this lever longer, cause its driving force lower, for isolating switch and circuit breaker switch cabinet relatively far apart, the drawback of this interlock shows particularly evident; Reasonable not once design, will cause closed bite restrictor bar and dropout activity push rod can not reliable action; 3. because the iron core of its interlock with the release electromagnet of circuit breaker connects, it can only realize electronic sub-switching operation, mechanical separating brake can not be realized, the joint defence rank of interlock is not high enough, therefore this interlock is only applicable to the terminal incoming line cabinets such as the high-voltage ring main unit that capacity is less, security level required is slightly low, and the scope of application of this interlocking device is narrower.
Summary of the invention
For this reason, technical problem to be solved by this invention is the problem of the interlock transmission underaction of existing fixed high-voltage switch cubicle, and then provides a kind of interlock of high voltage switchgear of ensuring smooth transmission.
For solving the problems of the technologies described above, high voltage switchgear interlock of the present invention, it comprises, isolator operating mechanism, it comprises the operating grip controlling isolating switch deciliter and the shift fork being arranged at lock operation panel itself, and described operating grip is fixedly connected with by the rotating shaft being arranged in described lock operation panel with described shift fork; Circuit breaker separating/closing mechanism, it comprises the combined floodgate axle and combined floodgate bent plate that control breaker closing, and controls dropout semiaxis and the dropout bent plate of breaker open operation; Transmission mechanism, its one end is connected with the shift fork of described isolator operating mechanism, and the other end is connected with circuit breaker separating/closing mechanism; Described transmission mechanism comprises and is arranged at linkage below circuit breaker external and is arranged in described circuit breaker and the leverage be positioned at bottom described circuit breaker; Wherein, described leverage comprises: be arranged at respectively on the lever of balance pivot both sides, controls the closed bite restrictor bar of described combined floodgate bent plate action and controls the dropout activity push rod of described dropout bent plate action; Described linkage comprises: be fixed on the guide plate on circuit breaker sidewall, and described guide plate is equipped with rotation axis, is fixedly connected with respectively drives connecting lever and interlock connecting lever in the both sides of described rotation axis; The described driving connecting lever other end is by being connected with described shift fork with its hinged drive rod, described interlock connecting lever drives a fanning strip be articulated with on support to rotate by the gangbar hinged with it, described support is fixed on the diapire of described circuit breaker, on the diapire of described circuit breaker, the pushing tow position of corresponding described fanning strip is also equipped with movable push rod, and the rotation of described fanning strip drives stretching up and down of described movable push rod; Described movable push rod penetrates in described circuit breaker and pushes described leverage.
In above-mentioned high voltage switchgear interlock, described drive rod comprises: the lower contact hinged with described driving connecting lever; The top connection be fixedly connected with described shift fork; And be arranged at the drive rod adjusting rod regulating described drive rod length between described top connection and described lower contact.
In above-mentioned high voltage switchgear interlock, described gangbar comprises: the connecting lever joint hinged with described interlock connecting lever; The fanning strip joint hinged with described fanning strip; And be arranged at the gangbar adjusting rod regulating described drive rod length between described connecting lever joint and described fanning strip joint.
In above-mentioned high voltage switchgear interlock, the connecting plate that described support comprises two parallel support plates and bridges between two described support plates, hinge is provided with between described support plate, described fanning strip is articulated with on described hinge, described connecting plate is fixed on described circuit breaker diapire, and described connecting plate is equipped with described movable push rod at the pushing tow position of the described fanning strip of correspondence.
In above-mentioned high voltage switchgear interlock, described leverage comprises: be arranged at the supporting bracket for support lever on described circuit breaker diapire, and described closed bite restrictor bar and described dropout activity push rod are articulated and connected with described lever respectively; The top of described closed bite restrictor bar forms draw-in groove, and described draw-in groove coordinates with the lock pin be fixedly connected on described combined floodgate bent plate and controls described combined floodgate bent plate and move up and down; The top of described dropout activity push rod forms control connecting lever, and the upper surface that described control connecting lever directly acts on described dropout bent plate controls described dropout bent plate and moves up and down.
In above-mentioned high voltage switchgear interlock, in described circuit breaker, be also provided with the sensitive switch that controls circuit breaker disjunction, described sensitive switch is electrically connected in series with the closing circuit of described circuit breaker; Described closed bite restrictor bar forms the crimp perpendicular to the body of rod, described sensitive switch is arranged at the upside of described crimp, and described crimp moves up and pushes described sensitive switch and make its disjunction, realizes electronic separating brake.
In above-mentioned high voltage switchgear interlock, described closed bite restrictor bar is arranged with back-moving spring.
In above-mentioned high voltage switchgear interlock, be provided with the roller be fixedly connected with described combined floodgate bent plate in described circuit breaker, when described combined floodgate bent plate is in bottom, described roller is installed with on described closed bite restrictor bar connecting lever.
Technique scheme of the present invention has the following advantages compared to existing technology:
1. interlock of the present invention is installed on bottom circuit breaker, structure is simple, Installation and Debugging are convenient, its transmission mechanism adopted comprises and is arranged at linkage below circuit breaker external and is arranged in described circuit breaker and the leverage be positioned at bottom described circuit breaker, it is compared to the transmission mechanism of prior art, ensuring smooth transmission, and it can according to different cabinet sizes, and the layout of the functional unit of cabinet inside arranges the position of transmission mechanism, and do not affect the effect of cabinet functional unit.
2. in linkage of the present invention, the length of drive rod and gangbar all can regulate, and it can adapt to different cabinets and regulate, meanwhile, different length the driving force that can also regulate and finally be delivered on described leverage is set; Avoid the not enough interlocking caused of driving force unreliable.
3. the divide-shut brake of circuit breaker of the present invention controls combined floodgate bent plate by closed bite restrictor bar, and dropout activity push rod controls the mechanical separating brake that dropout bent plate realizes; Its relative to carrying out the interlock use safety of separating brake by electronic mode in prior art, interlocking is reliable, further, this interlock also arranges the sensitive switch that can realize electronic divide-shut brake, and it further can improve the reliability of this interlock.
Accompanying drawing explanation
In order to make content of the present invention be more likely to be clearly understood, below according to a particular embodiment of the invention and by reference to the accompanying drawings, the present invention is further detailed explanation, wherein
Fig. 1 is the structural representation of the linkage of high voltage switchgear interlock of the present invention;
Fig. 2 is the stereogram of the linkage of high voltage switchgear interlock of the present invention;
Fig. 3 is the structural representation of the leverage of high voltage switchgear interlock of the present invention;
Fig. 4 is the stereogram of closed bite restrictor bar in the present invention;
Fig. 5 is the graph of a relation of medium-height trestle of the present invention and fanning strip and movable push rod.
In figure, Reference numeral is expressed as:
1-guide plate, 2-drives connecting lever, 3-links connecting lever, 4 drive rods, 41-top connection, 42-drive rod adjusting rod, 43-lower contact, 5-rotation axis, 6-gangbar, 61-fanning strip joint, 62-gangbar adjusting rod, 63-connecting lever joint, 7-fanning strip, 8-support, 81-support plate, 82-connecting plate, 83-hinge, the movable push rod of 9-, 10-combined floodgate axle, 11-combined floodgate bent plate, 12-dropout semiaxis, 13-dropout bent plate, 14-closed bite restrictor bar, 141-closed bite restrictor bar connecting lever, 142-crimp, 143-draw-in groove, 15-dropout activity push rod, 151-controls connecting lever, 16-supporting bracket, 17-lock pin, 18-operating grip, 19-sensitive switch, 20-back-moving spring, 21-roller, 22-lever.
Embodiment
Fig. 1, Fig. 3 are high voltage switchgear interlock disclosed by the invention, it transmission mechanism comprising isolator operating mechanism, circuit breaker separating/closing mechanism and be arranged between described isolator operating mechanism and described circuit breaker separating/closing mechanism.
Described isolator operating mechanism comprises: be arranged at lock operation panel outer end for controlling the operating grip 18 of isolating switch deciliter, also comprise the shift fork be arranged at inside described lock operation panel, described operating grip 18 is fixedly connected with by the rotating shaft being arranged in described lock operation panel with described shift fork.Described handle 18 drives described shift fork to rotate together when rotating.
Described circuit breaker separating/closing mechanism comprises the combined floodgate axle 10 and combined floodgate bent plate 11 that control breaker closing, and controls dropout semiaxis 12 and the dropout bent plate 13 of breaker open operation.When described combined floodgate bent plate 11 move up be arranged on described combined floodgate axle 10 time, this circuit breaker can not close a floodgate; When described combined floodgate bent plate 11 moves down, described circuit breaker can close a floodgate.When described dropout bent plate 13 move down be arranged in described trip shaft 13 time, this circuit breaker keep gate-dividing state, when dropout bent plate 13 moves up, this circuit breaker can separating brake.
Described transmission mechanism comprises and is arranged at linkage below circuit breaker external and is arranged in described circuit breaker and the leverage be positioned at bottom described circuit breaker.
Wherein, described leverage comprises the dropout activity push rod 15 being arranged at closed bite restrictor bar 14 on the lever of balance pivot both sides, that control the action of described combined floodgate bent plate 11 respectively and controlling the action of described dropout bent plate 13.
As shown in Figure 2, described linkage comprises: be fixed on the guide plate 1 on described circuit breaker sidewall, and described guide plate 1 is equipped with rotation axis 5, is fixedly connected with respectively drives connecting lever 2 and interlock connecting lever 3 in the both sides of described rotation axis 5.Described driving connecting lever 2 other end is fixedly connected with described shift fork by the drive rod 4 hinged with it, described interlock connecting lever 3 drives a fanning strip 7 be articulated with on support 8 to rotate by the gangbar 6 hinged with it, described support 8 is fixed on the diapire of described circuit breaker, on the diapire of described circuit breaker, the pushing tow position of corresponding described fanning strip 7 is also equipped with movable push rod 9, and the rotation of described fanning strip 7 drives stretching up and down of described movable push rod 9; Described movable push rod 9 penetrates in described circuit breaker and pushes described leverage.
In aforementioned link mechanism, described drive rod 4 comprises the lower contact 43 hinged with described driving connecting lever 2; The top connection 41 hinged with described isolator operating mechanism; And to be arranged between described top connection 41 with described lower contact 43 and the drive rod adjusting rod 42 be threaded with described top connection 41 and described lower contact 43 respectively.
In aforementioned link mechanism, described gangbar 6 comprises: the connecting lever joint 63 hinged with described interlock connecting lever 3; The fanning strip joint 61 hinged with described fanning strip 7; And to be arranged between described connecting lever joint 63 with described fanning strip joint 61 and the gangbar regulating connecting rod 62 be threaded with described connecting lever joint 63 and described fanning strip joint 61 respectively.
As shown in Figure 5, in the present embodiment, the connecting plate 82 that described support 8 comprises two parallel support plates 81 and bridges between two described support plates 81, hinge 83 is provided with between described support plate 81, described fanning strip 7 is articulated with on described hinge 83, described connecting plate 82 is fixed on described circuit breaker diapire, and described connecting plate 82 is equipped with described movable push rod 9 at the pushing tow position of the described fanning strip of correspondence 7.
Like this, described drive rod 4 and described gangbar 6 all can carry out length adjustment according to the cabinet of different model, this interlock applied widely, adaptable.
As shown in Figure 3, described leverage comprises: be arranged at the supporting bracket 16 on described circuit breaker diapire, described supporting bracket 16 is provided with fulcrum, and for support lever 22, described closed bite restrictor bar 14 is articulated and connected by closed bite restrictor bar connecting lever 141 one end with described lever 22; Described dropout activity push rod 15 is articulated and connected with the other end of described lever 22; As shown in Figure 4, the top of described closed bite restrictor bar 14 forms draw-in groove 143, and described draw-in groove 143 coordinates with the lock pin 17 be fixedly connected on described combined floodgate bent plate 11 and realizes moving up and down of described combined floodgate bent plate 11; The top of described dropout activity push rod 15 forms and controls connecting lever 151, and the upper surface that described control connecting lever 151 directly acts on described dropout bent plate 13 realizes described dropout bent plate 13 and moves up and down.
Preferably, described closed bite restrictor bar 14 is arranged with back-moving spring 20, when movable push rod 9 does not push described closed bite restrictor bar connecting lever 141 in bottom, under the effect of described back-moving spring 20, described closed bite restrictor bar 14 falls.
In described circuit breaker, be also provided with the normally closed sensitive switch 19 that controls circuit breaker disjunction, described sensitive switch 19 is electrically connected in series with described closing circuit of circuit breaker; Described closed bite restrictor bar 14 forms the crimp 142 perpendicular to the body of rod, described sensitive switch 19 is arranged at the upside of described crimp 142, and described crimp 142 moves up and pushes described sensitive switch 19 and make its disjunction, realizes electronic separating brake.
In described circuit breaker, be provided with the roller 21 be fixedly connected with described combined floodgate bent plate 11, when described combined floodgate bent plate 11 is in bottom, described roller 21 is installed with on described closed bite restrictor bar connecting lever 141.
Interlock of the present invention is provided with " working position ", " maintenance position " and " disjunction locking position " third gear control bit, makes isolating switch and circuit breaker can interactive interlocked control, carries out that isolating switch divides, closing operation.Be specially:
When circuit breaker is in "on" position, namely when interlock is in " working position ", described roller 21 is in lowering position, it is installed with on described closed bite restrictor bar 14, block described closed bite restrictor bar 14 to move upward, namely described transmission mechanism can not move, and the described operating grip 18 in described isolator operating mechanism is stiff, this interlock can not make described operating grip 18 dozens to " disjunction locking position ", and namely this interlock can not make described circuit breaker beat to open position.Meanwhile, the described crimp 142 taken shape in the middle part of described closed bite restrictor bar 14 keeps at a certain distance away with described sensitive switch 19, realizes electric switch-on simultaneously.
When circuit breaker is in gate-dividing state, because described combined floodgate bent plate 11 is arranged on described combined floodgate axle 10, described roller 21 is also in cocked position, and it releases described closed bite restrictor bar 14.When described operating grip 18 is allocated to " disjunction locking position ", shift fork drives described drive rod 4, under the effect of described guide plate 1, described driving connecting lever 2 is 90 ° with described interlock connecting lever 3 angle, then the action of described fanning strip 7 is driven by described gangbar 6, and then described movable push rod 9 is extended upwardly, stroke is about 13mm, push the described leverage of described circuit breaker internal, described locking combined floodgate 14 is extended upwardly, described draw-in groove 143 on described closed bite restrictor bar 14 blocks the lock pin 17 on described combined floodgate bent plate 11, described combined floodgate bent plate 11 is made to remain on the position being arranged in described combined floodgate axle 10, described combined floodgate axle 10 can not rotate, described circuit breaker can not close a floodgate, be arranged at the described dropout activity push rod 15 of fulcrum opposite side to pressing down simultaneously, described control connecting lever 151 directly acts on the upper surface of described dropout bent plate 13, described dropout bent plate 13 moves down, be arranged on described dropout semiaxis 12, described dropout semiaxis 12 can not be rotated, described circuit breaker remains on gate-dividing state.Meanwhile, when described closed bite restrictor bar 14 moves up, the described crimp 142 taken shape in the middle part of described closed bite restrictor bar 14 move up push described sensitive switch 19 realize simultaneously closing circuit of circuit breaker disconnect.Like this, described circuit breaker can be made not carry out manual and/or electronic closing operation, ensure that the safety of isolator operation.When described operating grip 18 is allocated to " maintenance position ", shift fork drives described drive rod 4, under the effect of described guide plate 1, described driving connecting lever 2 rotates mutually with described interlock connecting lever 3, then the action of described fanning strip 7 is driven by described gangbar 6, and then make described movable push rod 9 be in bottom, to be separated by a segment distance with the described leverage of circuit breaker internal, described closed bite restrictor bar 14 is in bottom, described draw-in groove 143 and described lock pin 17 are separated by a segment distance, discharge described combined floodgate bent plate 11, described circuit breaker can carry out manual breaking-closing operating.
Obviously, above-described embodiment is only for clearly example being described, and the restriction not to execution mode.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all execution modes.And thus the apparent change of extending out or variation be still among the protection range of the invention.
Claims (7)
1. a high voltage switchgear interlock, is characterized in that: it comprises,
Isolator operating mechanism, it comprises the operating grip (18) controlling isolating switch deciliter and the shift fork being arranged at lock operation panel itself, and described operating grip (18) is fixedly connected with by the rotating shaft being arranged in described lock operation panel with described shift fork;
Circuit breaker separating/closing mechanism, it comprises the combined floodgate axle (10) and combined floodgate bent plate (11) that control breaker closing, and controls dropout semiaxis (12) and the dropout bent plate (13) of breaker open operation;
Transmission mechanism, its one end is connected with the described shift fork of described isolator operating mechanism, and the other end is connected with described circuit breaker separating/closing mechanism; Described transmission mechanism comprises and is arranged at linkage below circuit breaker external and is arranged in described circuit breaker and the leverage be positioned at bottom described circuit breaker;
Wherein, described leverage comprises: the dropout activity push rod (15) being arranged at closed bite restrictor bar (14) on the lever of balance pivot both sides, that control the action of described combined floodgate bent plate (11) and the action of control described dropout bent plate (13) respectively; Also comprise the supporting bracket (16) be arranged at for support lever (22) on described circuit breaker diapire, described closed bite restrictor bar (14) and described dropout activity push rod (15) are articulated and connected with described lever (22) respectively; The top of described closed bite restrictor bar (14) forms draw-in groove (143), and described draw-in groove (143) coordinates with the lock pin (17) be fixedly connected on described combined floodgate bent plate (11) and controls described combined floodgate bent plate (11) and move up and down; The top of described dropout activity push rod (15) forms and controls connecting lever (151), and the upper surface that described control connecting lever (151) directly acts on described dropout bent plate (13) controls described dropout bent plate (13) and moves up and down;
Described linkage comprises: be fixed on the guide plate (1) on circuit breaker sidewall, described guide plate (1) be equipped with rotation axis (5), is fixedly connected with respectively drives connecting lever (2) and interlock connecting lever (3) in the both sides of described rotation axis (5); Described driving connecting lever (2) other end is by being connected with described shift fork with its hinged drive rod (4), described interlock connecting lever (3) drives a fanning strip (7) be articulated with on support (8) to rotate by the gangbar (6) hinged with it, described support (8) is fixed on the diapire of described circuit breaker, on the diapire of described circuit breaker, the pushing tow position of corresponding described fanning strip (7) is also equipped with movable push rod (9), and the rotation of described fanning strip (7) drives stretching up and down of described movable push rod (9); Described movable push rod (9) penetrates in described circuit breaker and pushes described leverage.
2. high voltage switchgear interlock according to claim 1, is characterized in that:
Described drive rod (4) comprising:
The lower contact (43) hinged with described driving connecting lever (2);
The top connection (41) be fixedly connected with described shift fork;
And be arranged at the drive rod adjusting rod (42) regulating described drive rod (4) length between described top connection (41) and described lower contact (43).
3. high voltage switchgear interlock according to claim 1 and 2, is characterized in that:
Described gangbar (6) comprising:
The connecting lever joint (63) hinged with described interlock connecting lever (3);
The fanning strip joint (61) hinged with described fanning strip (7);
And be arranged at the gangbar adjusting rod (62) regulating described drive rod (6) length between described connecting lever joint (63) and described fanning strip joint (61).
4. high voltage switchgear interlock according to claim 3, is characterized in that:
The connecting plate (82) that described support (8) comprises two parallel support plates (81) and bridges between two described support plates (81), hinge (83) is provided with between described support plate (81), described fanning strip (7) is articulated with on described hinge (83), described connecting plate (82) is fixed on described circuit breaker diapire, and described connecting plate (82) is equipped with described movable push rod (9) at the pushing tow position of the described fanning strip of correspondence (7).
5. high voltage switchgear interlock according to claim 4, is characterized in that:
In described circuit breaker, be also provided with the normally closed sensitive switch (19) that controls circuit breaker disjunction, described sensitive switch (19) is electrically connected in series with the closing circuit of described circuit breaker;
Described closed bite restrictor bar (14) forms the crimp (142) perpendicular to the body of rod, described sensitive switch (19) is arranged at the upside of described crimp (142), described crimp (142) moves up and pushes described sensitive switch (19) and make its disjunction, realizes electronic separating brake.
6. high voltage switchgear interlock according to claim 5, is characterized in that:
Described closed bite restrictor bar (14) is arranged with back-moving spring (20).
7. high voltage switchgear interlock according to claim 6, is characterized in that:
In described circuit breaker, be provided with the roller (21) be fixedly connected with described combined floodgate bent plate (11), when described combined floodgate bent plate (11) is in bottom, described roller (21) is installed with on closed bite restrictor bar connecting lever (141).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210123635.1A CN102646543B (en) | 2012-04-25 | 2012-04-25 | Interlocking device used for high-voltage switch equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210123635.1A CN102646543B (en) | 2012-04-25 | 2012-04-25 | Interlocking device used for high-voltage switch equipment |
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| Publication Number | Publication Date |
|---|---|
| CN102646543A CN102646543A (en) | 2012-08-22 |
| CN102646543B true CN102646543B (en) | 2014-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210123635.1A Active CN102646543B (en) | 2012-04-25 | 2012-04-25 | Interlocking device used for high-voltage switch equipment |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104319130B (en) * | 2014-09-18 | 2016-11-30 | 平高集团有限公司 | Operating mechanism and blocking device thereof |
| CN112165070B (en) * | 2020-11-10 | 2021-09-10 | 江西大唐国际新能源有限公司 | Overvoltage preventing device of high-voltage circuit breaker |
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| CN102646543A (en) | 2012-08-22 |
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Denomination of invention: Interlocking devices for high voltage switchgear Effective date of registration: 20210630 Granted publication date: 20141231 Pledgee: Industrial and Commercial Bank of China Limited Linhai Branch Pledgor: ZHEJIANG LINGAO ELECTRICAL INDUSTRIAL Co.,Ltd. Registration number: Y2021330000763 |
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