CN104241968A - Anti-misoperation short-circuit grounding device - Google Patents
Anti-misoperation short-circuit grounding device Download PDFInfo
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- CN104241968A CN104241968A CN201410483052.9A CN201410483052A CN104241968A CN 104241968 A CN104241968 A CN 104241968A CN 201410483052 A CN201410483052 A CN 201410483052A CN 104241968 A CN104241968 A CN 104241968A
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- ground connection
- misoperation
- chuck
- electromagnet
- insulation shell
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/665—Structural association with built-in electrical component with built-in electronic circuit
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/64—Means for preventing incorrect coupling
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/64—Means for preventing incorrect coupling
- H01R13/641—Means for preventing incorrect coupling by indicating incorrect coupling; by indicating correct or full engagement
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/6608—Structural association with built-in electrical component with built-in single component
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/6608—Structural association with built-in electrical component with built-in single component
- H01R13/6633—Structural association with built-in electrical component with built-in single component with inductive component, e.g. transformer
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/665—Structural association with built-in electrical component with built-in electronic circuit
- H01R13/6691—Structural association with built-in electrical component with built-in electronic circuit with built-in signalling means
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The invention relates to an anti-misoperation short-circuit grounding device. The anti-misoperation short-circuit grounding device comprises an operating rod (1) or an operating contact (38), a grounding clip (4), a grounding line lead-out end (25), a grounding lead (26) and a grounding end clip (5). The grounding clip (4) is connected with the grounding lead (26) through the grounding line lead-out end (25), the grounding lead (26) is connected with the grounding end clip (5), and the side, close to the grounding clip (4), of the operating rod (1) or the side, close to the grounding clip (4), of the operating contact (38) is provided with an electrification warning device (6). Compared with the prior art, the anti-misoperation short-circuit grounding device has the advantages of being safe, reliable, convenient to operate and the like.
Description
Technical field
The present invention relates to field of power, especially relate to a kind of anti-misoperation short-circuit grounding device.
Background technology
Short-circuit grounding wire is the indispensable safety appliance of a kind of electric power apparatus examination operation, but carry additionally operation that short circuit connects wires once slip up, such as carry additionally short-circuit grounding wire to the power equipment of charging operation by mistake, serious high-tension apparatus metallic earthing short circuit will be caused, produce great short circuit current and high-temperature electric arc, cause field apparatus to burn instantaneously, serious accident that operating personnel's electric arc burn is even dead.
Along with the in-depth of anti-misoperation management system and the progress of technology, power industry misoperation fault declines year by year, but a lot of pernicious misoperation fault also fails fundamentally to stop, such as, be with the pernicious misoperation fault of cable address short-circuit grounding wire still to happen occasionally every year.Both having caused serious sending out for damaging with cable address short-circuit grounding wire, also cause extremely serious personal injury, but this problem still not having had the solution of technological layer so far.Chinese patent CN201210398449 proposes a kind of anti-misoperation electricity earthing cable, this technology by arranging interlock between the ground connection chuck and earth terminal chuck of conventional short-circuit grounding wire, the violation operation situation of " first hanging equipment end, rear extension earth terminal " can be prevented, but the equipment that is grounded is sent a telegram here suddenly, mistake that equipment nameplate mark mistake, electroscope fault etc. cause is to the situation of charging operation hanging equipment earth connection, this technology does not act on completely, develops a kind ofly to stop to be with the scheme of cable address short-circuit grounding wire just to seem particularly necessary by technological means for this reason.
Summary of the invention
Object of the present invention be exactly in order to overcome above-mentioned prior art exist defect and a kind of safe and reliable, easy to operate anti-misoperation short-circuit grounding device is provided.
Object of the present invention can be achieved through the following technical solutions:
A kind of anti-misoperation short-circuit grounding device, comprise action bars 1 or operation joint 38, ground connection chuck 4, earth connection exit 25, ground lead 26 and earth terminal chuck 5, described ground connection chuck 4 is connected with ground lead 26 by earth connection exit 25, described ground lead 26 is connected with earth terminal chuck 5, it is characterized in that, described action bars 1 or operation joint 38 are provided with charged prior-warning device 6 near ground connection chuck 4 side.
Described charged prior-warning device 6 comprises misoperation-proof locking device 7, and operating personnel, when carrying out ground connection misoperation, are locked by misoperation-proof locking device 7, ensures the personal safety of operating personnel.
Described misoperation-proof locking device 7 comprises electromagnet 8, impedance component 9, electrode 10, spring 11 and insulation shell 12, described electromagnet 8, impedance component 9, it is inner that spring 11 is positioned at described insulation shell 12, described spring 11 is axially installed between described ground connection chuck 4 and the bottom of described insulation shell 12, the top and bottom of described insulation shell 12 is respectively equipped with and supplies described ground connection chuck 4 and action bars 1 to make the hole 13 moved axially, 14, the side of described ground connection chuck 4 is provided with bayonet socket 15, described bayonet socket 15 is corresponding with armature 22 position of described electromagnet 8, described electrode 10 is positioned at the top of described insulation shell 12, and with described impedance component 9, be connected with described ground connection chuck 4 after the coils connected in series of electromagnet 8, when operating personnel are when carrying out ground connection misoperation, described electrode 10 discharges and forms electric arc and sound warning, armature 22 action of described electromagnet 8, stretch in bayonet socket 15, make this device locked.
Described misoperation-proof locking device 7 comprises electromagnet 8, induction type AC current detector 24 and insulation shell 12, described electromagnet 8, induction type AC current detector 24, it is inner that ground connection chuck 4 is positioned at described insulation shell 12, one end of described insulation shell 12 corresponding ground connection chuck open side is provided with hole 34, described hole 34 indent, the side of described hole 34 is provided with bayonet socket 15, opposite side is provided with electromagnet 8, described bayonet socket 15 is corresponding with armature 22 position of described electromagnet 8, the output switch parameter end 35 of described induction type AC current detector 24 is connected with the coil of electromagnet 8: when operating personnel are when carrying out ground connection misoperation, the alarm immediately of described induction type AC current detector 24, armature 22 action of described electromagnet 8, stretch in bayonet socket 15, make hole 34 locked.
Described misoperation-proof locking device 7 comprises conductive rubber ring 36 and thermal shrinkable sleeve housing 37, it is inner that described ground connection chuck 4 is positioned at described thermal shrinkable sleeve housing 37, one side opening of described thermal shrinkable sleeve housing 37, remainder is closed, the open side of described thermal shrinkable sleeve housing 37 is corresponding with the open side of described ground connection chuck 4, described conductive rubber ring 36 is located on a side opening of thermal shrinkable sleeve housing 37, and is electrically connected with described ground connection chuck 4; When operating personnel are when carrying out ground connection misoperation, described conductive rubber ring 36 discharges and forms electric arc and sound warning, and described conductive rubber ring 36 rapidly heating makes thermal shrinkable sleeve housing 37 heat shrinkable immediately, and this opening part is shrunk to aperture, prevent misoperation from continuing action.
Described misoperation-proof locking device 7 comprises electromagnet 8, impedance component 9, backstay 30, auxiliary chuck 31 and moving contact 33, described backstay 30 is vertically installed in the bottom of ground connection chuck 4, the top of described action bars 1 is provided with and pushes away screw thread 29, the side of described auxiliary chuck 31 is provided with the hole corresponding to backstay 30, opposite side be provided with to action bars 1 above push away the corresponding screwed hole of screw thread 29, described auxiliary chuck 31 top is also provided with the moving contact 33 contacted with ground connection chuck 4, described electromagnet 8 is located at the side of described auxiliary chuck 31, the top of described action bars 1 is provided with several bayonet sockets 15, described bayonet socket 15 is corresponding with armature 22 position of described electromagnet 8, described impedance component 9 is located at the inside of described backstay 30, and with described ground connection chuck 4, be connected with described auxiliary chuck 31 after the coils connected in series of electromagnet 8, described earth connection exit 25 is located on auxiliary chuck 31,
When operating personnel are when carrying out ground connection misoperation, described ground connection chuck 4 is near there being electric equipment, and described electromagnet 8 excitation immediately, makes armature 22 eject immediately, stretches into bayonet socket 15 corresponding with it, is blocked by action bars 1, cannot continue operation.
Described charged prior-warning device 6 comprises the impedance component 9 be arranged in insulated tube, described impedance component 9 is connected with ground connection chuck 4, and series LED, neon lamp and or buzzer, when operating personnel are when carrying out ground connection misoperation, described ground connection chuck 4 is near there being electric equipment, and described LED, neon lamp or buzzer send sound and light alarm.
Described charged prior-warning device 6 also comprises insulation shell 12, described insulation shell 12 is made up of elastomeric material, one side opening of described insulation shell 12, remainder is closed, the open side of described insulation shell 12 is corresponding with the open side of described ground connection chuck 4, described impedance component 9 one end is connected with described ground connection chuck 4, and the other end is suspended on the opening part of described insulation shell 12.
Described charged prior-warning device 6 is by induction type AC current detector 24, and when operating personnel are when carrying out ground connection misoperation, described induction type AC current detector 24 is reported to the police.
Also comprise last secondary earth connection discriminating gear 16, last width earth connection discriminating gear 16 described comprises an induction coil 17, ac signal circuit 18, power circuit 19, impedance measuring circuit 20 and a display circuit 21, connect with impedance measuring circuit 20 and induction coil 17 described in described ac signal circuit 18, described power circuit 19 is connected with described ac signal circuit 18.
Compared with prior art, the present invention makes traditional short-circuit grounding wire possess electricity prompting or blocking function, when this earth connection is hung to when having electric equipment by operating personnel, alarm device above earth connection on contact or locking device action, remind operating personnel's equipment live, must stop hanging ground-wire immediately, locking type product can also close ground connection chuck or isolation ground lead immediately, earth connection cannot be hung up, fundamentally avoid the serious accident that hanging earthing conductor by mistake causes.The present invention can also have last earth connection discrimination function, and the mode injected by custom-designed AC signal judges whether the earth connection removed at present is last root, the accident of anti-leak-stopping dismounting ground wire combined floodgate power transmission.
Accompanying drawing explanation
Fig. 1 is the structural representation of first embodiment of the invention;
Fig. 2 is the circuit block diagram of last secondary earth connection discriminating gear of first embodiment of the invention;
Fig. 3 is the structural representation of second embodiment of the invention;
Fig. 4 is the structural representation of third embodiment of the invention;
Fig. 5 is the structural representation of four embodiment of the invention;
Fig. 6 is the structural representation of fifth embodiment of the invention;
Fig. 7 is the structural representation of sixth embodiment of the invention;
Fig. 8 is the structural representation of seventh embodiment of the invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Embodiment one
Referring to accompanying drawing 1, this is the structural representation of first embodiment of the invention.Charged prior-warning device 6 is wherein made up of a misoperation-proof locking device 7.This misoperation-proof locking device is by electromagnet 8, impedance component 9, electrode 10, spring 11, parts such as insulation shell 12 grade are formed, electromagnet 8, impedance component 9, spring 11 is positioned at insulation shell inside, spring 11 is axially installed between the bottom of ground connection chuck 4 and insulation shell 12, the top and bottom of insulation shell 12 is respectively equipped with the hole 13 moved axially for ground connection chuck 4 and action bars, 14, the side of ground connection chuck 4 is provided with a bayonet socket 15, this bayonet socket is corresponding with armature 22 position of electromagnet 8, electrode 10 is positioned at the top of insulation shell 12, and with impedance component 9, be connected with ground connection chuck 4 after the coils connected in series of electromagnet 8.The top hole 13 of insulation shell 12 is also provided with insulation cover plate 23, and ground connection chuck 4 is connected with ground lead 26 by ground connection exit 25.
Compared with the short-circuit grounding wire of routine, the present embodiment has had more a charged prior-warning device 6, and this device is made up of misoperation-proof locking device 7.When operating personnel's hanging earthing conductor operates, first earth terminal chuck 5 and on-the-spot earthing bar are connect jail, then the ground connection chuck 4 of every phase is hung up the electric equipment needing ground connection by hand-held bar 1, operating grip 3 successively, completes hanging earthing conductor operation.The misoperation-proof locking device 7 of the present embodiment is connected as a single entity with the ground connection chuck of every phase equally, when operating the earth connection described in the present embodiment, the top of the insulation shell 12 of misoperation-proof locking device 7 is needed to point to earth connection hanging position, side, insulation shell 12 top is withstood on the below of earth connection hanging position, then operating grip is upwards pushed hard, overcome the elastic force of spring 11, after ground connection chuck in shell being ejected from hole 13 come, earth clip head-clamp is on equipment, turn operating grip subsequently, by binding thread 27, ground connection chuck is tightened in ground connection hanging position, just can complete hanging earthing conductor operation.If equipment live, when insulation shell 12 is in time having electric equipment, due to the electrical potential difference between earth connection and charging equipment, equipment will discharge to the electrode 10 on insulation shell top, form obvious electric arc and frizzle, play obvious prompt alarm effect, remind operating personnel equipment have electricity, must off-ground operation immediately.Due to the metering function of impedance component 9, make the arc current flowing through it very little, will not arc short-circuit be caused.If operating personnel continue to operate by force, because this arc current enters ground by the coil of impedance component 9, electromagnet 8, ground lead 26, electromagnet 8 excitation immediately, armature 22 ejects, and stretches into bayonet socket 15 corresponding with it, ground connection chuck 4 is blocked, even if now firmly up push away, ground connection chuck also cannot eject in insulation shell 12, because ground connection chuck is closed again, earth connection cannot hang up, and serves the effect of forced blocking.When this blocking function works, the ground connection chuck 4, impedance component, electromagnet, ground outlet etc. of the present embodiment are all completely enclosed within insulation shell, and therefore no matter how operating personnel move back and forth, and equipment electric arc of discharge all can not be caused to cause accident.The present embodiment possesses very perfect anti-incorrect manipulation deadlock function, even if personnel's cruelty operates by force, also can not cause accident, can become the last one impassable defence line preventing by mistake hanging earthing conductor serious accident.
In order to improve the insulation safety performance of the present embodiment further, top hole 13 is provided with insulation cover plate 23, the locking that can prevent the early discharge of charging equipment to inner earth clip head from causing is malfunctioning, also possesses rainproof effect simultaneously; The outside of insulation shell 12 also axially can arrange promise dry plate insulation cluster parachute 28, improves the handling safety performance of misty rain weather; Insulation shell should adopt transparent composite manufacture, to see internal mechanism running-active status clearly; The impedance component of the present embodiment adopts the resistance of multiple series connection to form, like this once a resistance punctures, other resistance is also had to play metering function, ground short circuit would not be caused, the value of this resistance will ensure under specified electric pressure, the arc current flow through is no more than 5A, to ensure to cause arc short-circuit.This impedance component equally also can be made up of capacitor or inductor, or resistance and capacitor, inductor are in series, can reduce the heating of resistive element like this, extend the life-span of whole misoperation-proof locking device.Insulation retaining ring 2, for alert hand position, prevents from getting an electric shock.The present embodiment is particularly useful for various indoor, the outdoor earth connection of below 66KV and uses.Its mechanical structure is simply ingenious, convenient for production, required parts are without particular/special requirement, use also very convenient, without the need to unnecessary operation, when the ground connection for cable, capacitor operates, the impedance component of the present embodiment has possessed the effect of discharging rod, therefore can remove discharge operation from, improve the convenience of operation further.
Short-circuit grounding wire on electric equipment, substantially all in order to ensure that overhaul of the equipments safety is arranged, need to recover power transmission once overhaul, if the short-circuit grounding wire carried additionally forgets dismounting before, just be equal to the equipment combined floodgate power transmission to ground short circuit, its serious consequence caused is self-evident equally.Often will overpay short-circuit grounding wire several local extensions during electric equipment interruption maintenance, as long as there is a pair to forget, dismounting will cause catastrophic serious accident.Although line combined floodgate power transmission with ground seldom results in personal injury caused by an accident, but also can cause serious harm to equipment and electrical network, for this problem, the present embodiment it be also provided with last secondary earth connection discriminating gear 16, omit and remove in order to overcome earth connection the potential safety hazard that causes.This device comprises an induction coil 17, AC signal and electricity 18, power circuit, 19, impedance measuring circuit 20 and a display circuit 21 occurs, ac signal circuit 18 is connected with impedance measuring circuit 20 and induction coil 17, power circuit 19 is connected with ac signal circuit 18, shown in accompanying drawing 2.
Induction coil 17 is for ground lead 26 coupled signal electric current, power circuit 19 is powered to ac signal circuit 18, make it generation AC signal, then this signal transports to induction coil 17 by impedance measuring circuit 20, this AC signal is loaded on ground lead 26 by the mode that electromagnetic induction is coupled by induction coil 17, if this earth connection is last secondary earth connection that this electric equipment is hung, then this AC signal can not form loop on ground lead, the input impedance of induction coil is just very large, this resistance value is shown by display circuit 20 by impedance measuring circuit, operating personnel are by the impedance of display, just can know that this secondary earth connection is last secondary earth connection, just can normal power transmission after removing.If this electric equipment also hangs with other earth connections do not removed, then this AC signal forms loop by the earth on ground lead, the input impedance of induction coil is just very little, this resistance value is shown by display circuit 20 by impedance measuring circuit equally, operating personnel are by the impedance of display, just know the earth connection this equipment also having and omits, could power transmission after needing dismounting clear.Line of induction snare should at ground lead three-phase river outlet, and so once test just can know whether three-phase ground line has been removed totally all.The AC signal frequency of ac signal circuit can not be too high or too low, to be good close to power frequency, prevents from the Transformer Winding on too high too low, the equipment of frequency or capacitor shunting from causing measuring inaccurate.Last secondary earth connection discrimination function that the present embodiment possesses, make it to have possessed prevent live connection of ground wire, prevent the dual of line combined floodgate power transmission with ground take precautions against effect, improve anti-misoperation performance of the present invention further, fundamentally can stop the electrical production accident that prisoner's earth connection misoperation causes.Certainly, last secondary earth connection discriminating gear of the present embodiment also can be made up of other similar impedance loop test circuits.
Embodiment two
Referring to accompanying drawing 3, this is the structural representation of second embodiment of the invention.The charged prior-warning device 6 of the present embodiment is made up of misoperation-proof locking device 7.This misoperation-proof locking device is by electromagnet 8, induction type AC current detector 24, formation such as insulation shell 12 grade, described electromagnet 8, induction type AC current detector 24, it is inner that ground connection chuck 4 is positioned at insulation shell 12, one end of insulation shell 12 corresponding ground connection chuck open side is provided with hole 34, hole 34 indent, the side of described hole 34 is provided with bayonet socket 15, opposite side is provided with electromagnet 8, bayonet socket 15 is corresponding with armature 22 position of described electromagnet 8, the output switch parameter end 35 of induction type AC current detector 24 is connected with the coil of electromagnet 8, earth connection exit 25 is located on ground connection chuck 4.
The present embodiment does not have action bars 1, only has an operation joint 38, operates after docking for the insulating bar special with electric power, and the volume of this sample embodiment is just very little, carries more convenient.Misoperation-proof locking device 7 operation principle and embodiment 1 have similarity, when operating personnel's hanging earthing conductor operates, first earth terminal chuck 5 and on-the-spot earthing bar are connect jail, then electric power Special insulative operating rod is docked firmly with operation joint 2, utilize electric power Special insulative operating rod that the ground connection chuck 4 of every phase is hung up the electric equipment needing ground connection successively, complete hanging earthing conductor operation.The misoperation-proof locking device 7 of the present embodiment is connected as a single entity with the ground connection chuck of every phase equally, its insulation shell 12 can in side folding, when operating the earth connection described in the present embodiment, the hole 34 of the insulation shell 12 of misoperation-proof locking device 7 is needed to point to earth connection hanging position, hole 34 is pushed open, earth clip head-clamp is on equipment, turn operating grip subsequently, by binding thread 27, ground connection chuck is tightened in ground connection hanging position, just can complete hanging earthing conductor operation.If equipment live, when insulation shell 12 is in time having electric equipment, induction type AC current detector 24 alarm immediately, remind operating personnel's equipment have electricity, must off-ground operation immediately; The output switch parameter end 35 of this induction type AC current detector 24 is by output voltage simultaneously, cause armature 22 action of electromagnet 8, armature 22 stretches into bayonet socket 15, hole 34 is made to be lockable and can not to open, now ground connection chuck is closed in insulation shell 12 inside, earth connection cannot hang up, and serves the effect of forced blocking.When this blocking function works, the parts such as ground connection chuck 4 grade of the present embodiment are all closed in insulation shell, and therefore no matter how operating personnel move back and forth, and equipment electric arc of discharge all can not be caused to cause accident.The present embodiment possesses perfect anti-incorrect manipulation deadlock function equally, even if personnel's cruelty operates by force, also can not cause accident, can become the last one impassable defence line preventing by mistake hanging earthing conductor serious accident.
The present embodiment is equally applicable to various indoor, the outdoor earth connection of below 66KV and uses, and its mechanical structure is simply ingenious, convenient for production, and owing to eliminating impedance component, volume is less, uses also very convenient, without the need to unnecessary operation.
Embodiment three
Referring to accompanying drawing 4, this is the structural representation of third embodiment of the invention.The charged prior-warning device 6 of the present embodiment is made up of a misoperation-proof locking device 7 equally, specifically be made up of conductive rubber ring 36, thermal shrinkable sleeve housing 37 etc., it is inner that described ground connection chuck 4 is positioned at thermal shrinkable sleeve housing 37, one side opening of thermal shrinkable sleeve housing 37, remainder is closed, this open side is corresponding with the open side of ground connection chuck, and described conductive rubber ring 36 is located on a side opening of thermal shrinkable sleeve housing 37, and is electrically connected with ground connection chuck 4.Earth connection exit 25 is located on described ground connection chuck 4.
Misoperation-proof locking device 7 operation principle of the present embodiment is more simple, because thermal shrinkable sleeve and conductive rubber are flexible material, therefore thermal shrinkable sleeve housing 37 can along all directions deformation, so consistent with conventional short-circuit earth connection when using, as long as ground connection chuck 4 is stretched out from the opening part of thermal shrinkable sleeve housing 37, hangs over relevant device again during operation.When ground connection chuck sensing equipment operates by operating personnel with preparing mounting, if equipment live, when thermal shrinkable sleeve housing 37 is in time having electric equipment, high voltage alive equipment will discharge to the conductive rubber ring 36 of pyrocondensation set of shells opening part, form obvious electric arc and frizzle, play obvious alarm effect, remind operating personnel equipment have electricity, must off-ground operation immediately; Simultaneously because conductive rubber ring 36 is electrically connected with ground connection chuck 4, the electrical discharge arc electric current of high-tension apparatus flows into the earth by this rubber ring, conductive rubber ring is caused to generate heat rapidly, because this conductive rubber is located on the opening part of thermal shrinkable sleeve housing, make thermal shrinkable sleeve housing heat shrinkable immediately, this opening part is shrunk to very little aperture, ground connection chuck 4 is enclosed in thermal shrinkable sleeve enclosure interior, now move back and forth in any case, also ground connection chuck 4 cannot be stretched from thermal shrinkable sleeve housing, earth connection cannot hang up, and serves the effect of forced blocking.Because thermal shrinkable sleeve itself possesses excellent insulation property, therefore no matter how operating personnel move back and forth, and equipment electric arc of discharge all can not be caused to cause accident.The present embodiment possesses perfect anti-incorrect manipulation deadlock function equally, even if personnel's cruelty operates by force, also can not cause accident, can become the last one impassable defence line preventing by mistake hanging earthing conductor serious accident.
The present embodiment is suitable for equally and uses with various indoor, outdoor earth connection, and compared with embodiment one, two, structure is more simply ingenious, and production and application is all very convenient.The present embodiment also can arrange last secondary earth connection discriminating gear, and principle is the same.
Embodiment four
Referring to accompanying drawing 5, this is the structural representation of four embodiment of the invention.The charged prior-warning device 6 of this embodiment is made up of misoperation-proof locking device 7 equally, and this device is located at the top of action bars 1.This misoperation-proof locking device is by electromagnet 8, impedance component 9, backstay 30, auxiliary chuck 31 and moving contact 33 are formed, backstay 30 is vertically installed in the bottom of ground connection chuck 4, the top of action bars 1 is provided with and pushes away screw thread 29, the side of auxiliary chuck 31 is provided with the hole corresponding to backstay 30, opposite side be provided with to action bars 1 above push away the corresponding screwed hole of screw thread 29, auxiliary chuck 31 top is also provided with the moving contact 33 that can contact with ground connection chuck 4, electromagnet 8 is located at the side of auxiliary chuck 31, the top of action bars is provided with the dry bayonet socket 15 of promise, this bayonet socket 15 is corresponding with armature 22 position of electromagnet 8, it is inner that impedance component 9 is located at backstay 30, this impedance component 9 and ground connection chuck 4, be connected with auxiliary chuck 31 after the coils connected in series of electromagnet 8, earth connection exit 25 is located on auxiliary chuck 31.
Method of operation and the conventional short-circuit earth connection of the present embodiment are similar, when operating personnel's hanging earthing conductor operates, first earth terminal chuck 5 and on-the-spot earthing bar are connect jail, then the ground connection chuck 4 of every phase is hung up the electric equipment needing ground connection by hand-held bar 1, operating grip 3 successively, then rotation process bar, is clamped on equipment by the binding thread 27 of top by earth clip head-clamp 4; Larger than the pitch of binding thread 27 owing to above pushing away screw thread 29, auxiliary chuck 31 can the location of backstay 30 is upper and lower push away the rotation of screw thread 29 under rise, until moving contact 33 touches ground connection chuck 4, ground lead 26 just be grounded equipment and connect, complete hanging earthing conductor and operate.When operating the earth connection described in the present embodiment, when ground connection chuck 4 is hung up the equipment of required ground connection, if equipment live, when ground connection chuck 4 is in time having electric equipment, due to the electrical potential difference between earth connection and charging equipment, equipment will discharge to the electrode 10 on insulation shell top, forms obvious electric arc and frizzle, play obvious alarm effect, remind operating personnel equipment have electricity, must off-ground operation immediately.Due to the metering function of impedance component 9, make the arc current flowing through it very little, will not arc short-circuit be caused.If operating personnel continue to operate by force, because this arc current is by entering ground through ground lead 26 after the coil of impedance component 9, wire 32, electromagnet 8, auxiliary chuck 31, electromagnet 8 immediately excitation, armature 22 ejects immediately, stretch into bayonet socket 15 corresponding with it, action bars 1 is blocked, even if now firmly rotate again, auxiliary chuck 31 also cannot rise and to contact with ground connection chuck 4, in any case now, be grounded equipment all to connect with the earth, the present embodiment, by isolation ground lead, plays the effect of forced blocking hanging earthing conductor.For ensureing that auxiliary chuck 31 originally no matter can effectively locking where, bayonet socket 15 should arrange several along action bars more than 1.Due to assist when removing earth connection chuck 31 can upper push away decline under the effect of screw thread 29 a lot, when operating with making each mounting, auxiliary have enough safe distances between chuck 31 and ground connection chuck 4, and therefore no matter how operating personnel move back and forth, and equipment electric arc of discharge all can not be caused to cause accident.The present embodiment also possesses perfect anti-incorrect manipulation deadlock function, even if personnel's cruelty operates by force, also can not cause accident, can become the last one impassable defence line preventing by mistake hanging earthing conductor serious accident.Certainly, the misoperation-proof locking device of the present embodiment also can by other similar machinery---the device of electrical bond is formed, such as backstay can double as impedance component by the conductive rubber bar that resistivity is larger, above push away screw thread 29 can be replaced etc. by snap lock mechanism, plays same anti-incorrect manipulation deadlock effect.
The present embodiment is particularly useful for various indoor, outdoor earth connection and uses.Its mechanical structure is simply ingenious, convenient for production, required parts are without particular/special requirement, use also very convenient, without the need to unnecessary operation, when the ground connection for cable, capacitor operates, the impedance component of the present embodiment has also possessed the effect of discharging rod, therefore can remove discharge operation from, improve the convenience of operation.Those skilled in the art by understanding to the above embodiment of the present invention, can design completely more like multiclass with the product of the present invention of misoperation-proof locking device, obviously these all belong to protection scope of the present invention.
Embodiment five
Referring to accompanying drawing 6, this is the structural representation of fifth embodiment of the invention.This embodiment has simple, the lightweight advantage of structure, and its charged prior-warning device 6 is made up of a simple impedance component 9, and impedance component 9 is connected with the ground connection chuck 4 of every phase, and ground connection chuck 4 is connected with ground lead 26 by ground connection exit 25.This impedance component equally also can be in series by resistance, electric capacity or resistance capacitance, to reduce the wastage, to improve security performance.When this embodiment uses, when near for earth clip head rest equipment, if equipment live, obvious electric arc and squeak will be formed between electrode, thus play prompt alarm effect, remind operating personnel's equipment to have electricity, forbid ground connection.This impedance original paper can be arranged in an insulated tube, improves the life-span of impedance original paper, prevents from making moist; The outside of impedance original paper or insulated tube can also arrange promise dry plate insulation cluster parachute 28, for increasing the insulation effect of misty rain weather, improves the fail safe used further.Impedance original paper or insulated tube also can adopt flexible material to form, and anti-the falling of improving product hits performance.In addition, impedance component can also to be connected a LED, neon lamp or buzzer (LED, neon lamp or buzzer can access dividing fluid element as required again), like this once the nearly charging equipment of earth clip head rest, LED, neon lamp or buzzer also can send sound and light alarm, have made electricity prompting more eye-catching outstanding.
The present embodiment technology is simple, reliability is high, also possesses the effect of discharging rod, compared with embodiment one simultaneously, although lose forced blocking function, but because its structure simplifies further, volume weight is less, the short-circuit grounding wire product being more suitable for 110KV above uses.The present embodiment also can arrange last secondary earth connection discriminating gear, and principle is the same.
Embodiment six
Referring to accompanying drawing 7, this is the structural representation of sixth embodiment of the invention.The charged prior-warning device 6 of this embodiment is made up of impedance component 9 equally, and impedance component 9 is connected with the ground connection chuck 4 of every phase, and ground connection chuck 4 is connected with ground lead 26 by ground connection exit 25.When near for earth clip head rest equipment, if equipment live, obvious electric arc and squeak will be formed between electrode, thus play prompt alarm effect, remind operating personnel's equipment to have electricity to forbid ground connection.The present embodiment does not have action bars 1 yet, uses after being docked by the insulating bar that operation joint 38 is special with electric power.
The present embodiment also comprises an insulation shell 12, this insulation shell is made up of elastomeric material, one side opening, open side is corresponding with the open side of ground connection chuck, remainder is closed, one end of impedance component 9 is connected with ground connection chuck 4, the other end is suspended on the opening part of insulation shell 12, during hanging earthing conductor operation, ground connection chuck 4 is needed to stretch out rear just can clipping to equipment from the opening part of insulation shell 12, complete ground connection operation, when therefore using the present embodiment, the opening part of insulation shell 12 must first be aimed at the equipment of being grounded by operating personnel, so just can ensure no matter how operating personnel operate, once equipment has electricity all can first discharge to impedance component 9, play the effect forcing electrical verification, in embodiment five, if the operation of operating personnel's crudity, first by ground connection chuck 4 aligning equipment, just may cause the situation that impedor electrical verification effect is malfunctioning, the present embodiment is by arranging insulation shell 12, serve the effect of forced guiding, in any case all make impedance component when forcing operation first near equipment, equal to force operating personnel's electrical verification again, further increase fool proof effect.The impedance component of the present embodiment equally also can be connected LED, neon lamp or a buzzer etc., and like this once the nearly charging equipment of earth clip head rest, LED, neon lamp or buzzer also can send sound and light alarm, have made electricity prompting more eye-catching outstanding.
The present embodiment technology is simple, reliability is high, also possesses the effect of discharging rod, although also do not have forced blocking function simultaneously, but add the function of forcing electrical verification, also possess good anti-misoperation function, certain the present embodiment also can arrange last secondary earth connection discriminating gear, and principle is the same.
Embodiment seven
Referring to accompanying drawing 8, this is the structural representation of seventh embodiment of the invention.The charged prior-warning device 6 of this embodiment is made up of traditional induction type AC current detector 24.Ground connection chuck 4 is connected with ground lead 26 by ground connection exit 25.Induction type AC current detector be a kind of by detect ac electric field strength carry out the whether charged device of judgment device, when earth connection uses, once ground connection chuck 4 stretches to by operating personnel electric equipment, ground connection chuck left electric equipment also have certain distance time, inductive ac electroscope on ground connection chuck is reported to the police because experiencing the AC field of high strength, reminds operator must stop hanging earthing conductor immediately.The present embodiment is with low cost, but do warning element owing to not using impedance original paper, therefore alarm is directly perceived not, the function of misoperation forced blocking and discharging rod is not possessed yet, but its volume is small and exquisite especially, the occasion being therefore specially adapted to the narrow spaces such as preassembled transformer station, switch cubicle, box-type substation, small distribution room uses.
It should be noted that, the above embodiments be all in order to illustrate the present invention instead of restriction the present invention, such as short-circuit grounding wire of the present invention both can be three-phase convergent current type also can be that three-phase is split type; Ground connection chuck both can be screw type also can be spring; Misoperation-proof locking device can adopt other similar machinery or electric locking devices completely; Last width earth connection discriminating gear both can make one with earth connection also can make detachable type; Etc..Many technical characteristics in different embodiments of the invention are interchangeable or omit; the optimum configurations of many elements can change as required; "a" or "an" before element of the present invention is not got rid of and is occurred multiple this element, and these changes all should belong to protection scope of the present invention.
Claims (10)
1. an anti-misoperation short-circuit grounding device, comprise action bars (1) or operation joint (38), ground connection chuck (4), earth connection exit (25), ground lead (26) and earth terminal chuck (5), described ground connection chuck (4) is connected with ground lead (26) by earth connection exit (25), described ground lead (26) is connected with earth terminal chuck (5), it is characterized in that, described action bars (1) or operation joint (38) are provided with charged prior-warning device (6) near ground connection chuck (4) side.
2. a kind of anti-misoperation short-circuit grounding device according to claim 1, it is characterized in that, described charged prior-warning device (6) comprises misoperation-proof locking device (7), operating personnel are when carrying out ground connection misoperation, by misoperation-proof locking device (7) locking, ensure the personal safety of operating personnel.
3. a kind of anti-misoperation short-circuit grounding device according to claim 2, it is characterized in that, described misoperation-proof locking device (7) comprises electromagnet (8), impedance component (9), electrode (10), spring (11) and insulation shell (12), described electromagnet (8), impedance component (9), it is inner that spring (11) is positioned at described insulation shell (12), described spring (11) is axially installed between the bottom of described ground connection chuck (4) and described insulation shell (12), the top and bottom of described insulation shell (12) is respectively equipped with and supplies described ground connection chuck (4) and action bars (1) to make the hole (13 moved axially, 14), the side of described ground connection chuck (4) is provided with bayonet socket (15), described bayonet socket (15) is corresponding with armature (22) position of described electromagnet (8), described electrode (10) is positioned at the top of described insulation shell (12), and with described impedance component (9), be connected with described ground connection chuck (4) after the coils connected in series of electromagnet (8), when operating personnel are when carrying out ground connection misoperation, described electrode (10) electric discharge forms electric arc and sound warning, armature (22) action of described electromagnet (8), stretch in bayonet socket (15), make this device locked.
4. a kind of anti-misoperation short-circuit grounding device according to claim 2, it is characterized in that, described misoperation-proof locking device (7) comprises electromagnet (8), induction type AC current detector (24) and insulation shell (12), described electromagnet (8), induction type AC current detector (24), it is inner that ground connection chuck (4) is positioned at described insulation shell (12), one end of described insulation shell (12) corresponding ground connection chuck open side is provided with hole (34), described hole (34) indent, the side of described hole (34) is provided with bayonet socket (15), opposite side is provided with electromagnet (8), described bayonet socket (15) is corresponding with armature (22) position of described electromagnet (8), the output switch parameter end (35) of described induction type AC current detector (24) is connected with the coil of electromagnet (8), when operating personnel are when carrying out ground connection misoperation, the alarm immediately of described induction type AC current detector (24), armature (22) action of described electromagnet (8), stretches in bayonet socket (15), makes hole (34) locked.
5. a kind of anti-misoperation short-circuit grounding device according to claim 2, it is characterized in that, described misoperation-proof locking device (7) comprises conductive rubber ring (36) and thermal shrinkable sleeve housing (37), it is inner that described ground connection chuck (4) is positioned at described thermal shrinkable sleeve housing (37), one side opening of described thermal shrinkable sleeve housing (37), remainder is closed, the open side of described thermal shrinkable sleeve housing (37) is corresponding with the open side of described ground connection chuck (4), described conductive rubber ring (36) is located on a side opening of thermal shrinkable sleeve housing (37), and be electrically connected with described ground connection chuck (4), when operating personnel are when carrying out ground connection misoperation, described conductive rubber ring (36) electric discharge forms electric arc and sound warning, and described conductive rubber ring (36) rapidly heating makes thermal shrinkable sleeve housing (37) heat shrinkable immediately, this opening part is shrunk to aperture, prevents misoperation from continuing action.
6. a kind of anti-misoperation short-circuit grounding device according to claim 2, it is characterized in that, described misoperation-proof locking device (7) comprises electromagnet (8), impedance component (9), backstay (30), auxiliary chuck (31) and moving contact (33), described backstay (30) is vertically installed in the bottom of ground connection chuck (4), the top of described action bars (1) is provided with and pushes away screw thread (29), the side of described auxiliary chuck (31) is provided with the corresponding hole with backstay (30), opposite side be provided with action bars (1) above push away the corresponding screwed hole of screw thread (29), described auxiliary chuck (31) top is also provided with the moving contact (33) contacted with ground connection chuck (4), described electromagnet (8) is located at the side of described auxiliary chuck (31), the top of described action bars (1) is provided with several bayonet sockets (15), described bayonet socket (15) is corresponding with armature (22) position of described electromagnet (8), described impedance component (9) is located at the inside of described backstay (30), and with described ground connection chuck (4), be connected with described auxiliary chuck (31) after the coils connected in series of electromagnet (8), described earth connection exit (25) is located on auxiliary chuck (31),
When operating personnel are when carrying out ground connection misoperation, described ground connection chuck (4) is near there being electric equipment, described electromagnet (8) excitation immediately, armature (22) is ejected immediately, stretch into bayonet socket (15) corresponding with it, action bars (1) is blocked, operation cannot be continued.
7. a kind of anti-misoperation short-circuit grounding device according to claim 1, it is characterized in that, described charged prior-warning device (6) comprises the impedance component (9) be arranged in insulated tube, described impedance component (9) is connected with ground connection chuck (4), and series LED, neon lamp and or buzzer, when operating personnel are when carrying out ground connection misoperation, described ground connection chuck (4) is near there being electric equipment, and described LED, neon lamp or buzzer send sound and light alarm.
8. a kind of anti-misoperation short-circuit grounding device according to claim 7, it is characterized in that, described charged prior-warning device (6) also comprises insulation shell (12), described insulation shell (12) is made up of elastomeric material, one side opening of described insulation shell (12), remainder is closed, the open side of described insulation shell (12) is corresponding with the open side of described ground connection chuck 4, described impedance component (9) one end is connected with described ground connection chuck (4), and the other end is suspended on the opening part of described insulation shell (12).
9. a kind of anti-misoperation short-circuit grounding device according to claim 1, it is characterized in that, described charged prior-warning device (6) is by induction type AC current detector (24), when operating personnel are when carrying out ground connection misoperation, described induction type AC current detector (24) is reported to the police.
10. a kind of anti-misoperation short-circuit grounding device according to claim 1, it is characterized in that, also comprise last secondary earth connection discriminating gear (16), last width earth connection discriminating gear (16) described comprises an induction coil (17), an ac signal circuit (18), a power circuit (19), an impedance measuring circuit (20) and a display circuit (21), described ac signal circuit (18) is described connects with impedance measuring circuit (20) and induction coil (17), described power circuit (19) is connected with described ac signal circuit (18).
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710270831.4A CN107104328B (en) | 2014-09-19 | 2014-09-19 | A kind of anti-misoperation short-circuit grounding device of band auxiliary collet |
| CN201710271539.4A CN106941227B (en) | 2014-09-19 | 2014-09-19 | A kind of anti-misoperation short-circuit grounding device easy to carry |
| CN201710271551.5A CN107134695B (en) | 2014-09-19 | 2014-09-19 | A kind of anti-misoperation short-circuit grounding device with flexible material |
| CN201410483052.9A CN104241968B (en) | 2014-09-19 | 2014-09-19 | A kind of anti-misoperation short-circuit grounding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410483052.9A CN104241968B (en) | 2014-09-19 | 2014-09-19 | A kind of anti-misoperation short-circuit grounding device |
Related Child Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710271539.4A Division CN106941227B (en) | 2014-09-19 | 2014-09-19 | A kind of anti-misoperation short-circuit grounding device easy to carry |
| CN201710271551.5A Division CN107134695B (en) | 2014-09-19 | 2014-09-19 | A kind of anti-misoperation short-circuit grounding device with flexible material |
| CN201710270831.4A Division CN107104328B (en) | 2014-09-19 | 2014-09-19 | A kind of anti-misoperation short-circuit grounding device of band auxiliary collet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104241968A true CN104241968A (en) | 2014-12-24 |
| CN104241968B CN104241968B (en) | 2017-07-28 |
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|---|---|---|---|
| CN201710271551.5A Active CN107134695B (en) | 2014-09-19 | 2014-09-19 | A kind of anti-misoperation short-circuit grounding device with flexible material |
| CN201710271539.4A Active CN106941227B (en) | 2014-09-19 | 2014-09-19 | A kind of anti-misoperation short-circuit grounding device easy to carry |
| CN201410483052.9A Active CN104241968B (en) | 2014-09-19 | 2014-09-19 | A kind of anti-misoperation short-circuit grounding device |
| CN201710270831.4A Active CN107104328B (en) | 2014-09-19 | 2014-09-19 | A kind of anti-misoperation short-circuit grounding device of band auxiliary collet |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710271551.5A Active CN107134695B (en) | 2014-09-19 | 2014-09-19 | A kind of anti-misoperation short-circuit grounding device with flexible material |
| CN201710271539.4A Active CN106941227B (en) | 2014-09-19 | 2014-09-19 | A kind of anti-misoperation short-circuit grounding device easy to carry |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201710270831.4A Active CN107104328B (en) | 2014-09-19 | 2014-09-19 | A kind of anti-misoperation short-circuit grounding device of band auxiliary collet |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104201485A (en) * | 2014-09-19 | 2014-12-10 | 国家电网公司 | Short circuit grounding wire device with locking function |
| CN104201486A (en) * | 2014-09-19 | 2014-12-10 | 国家电网公司 | Portable short-circuit grounding device |
| CN104901034A (en) * | 2015-05-07 | 2015-09-09 | 国家电网公司 | Grounding device for avoiding misoperaiton of wiring sequence |
| CN107069259A (en) * | 2016-12-12 | 2017-08-18 | 国网北京市电力公司 | Portable ground wire |
| CN107238776A (en) * | 2017-05-27 | 2017-10-10 | 国网河南省电力公司平顶山供电公司 | It is a kind of to prevent detection warning device of the transformer station with safety measure power transmission |
| CN109244700A (en) * | 2018-11-12 | 2019-01-18 | 国网安徽省电力有限公司合肥供电公司 | A kind of anti-error hanging earthing conductor device and control method |
| CN113991331A (en) * | 2021-11-22 | 2022-01-28 | 贵州电网有限责任公司 | Safe and reliable high-voltage grounding connecting wire clamp |
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| CN109687180B (en) * | 2019-02-21 | 2020-05-29 | 国网天津市电力公司滨海供电分公司 | Anti-mis-disassembly high-voltage grounding device |
| CN109979778B (en) * | 2019-03-07 | 2020-07-28 | 浙江江山森源电器有限公司 | Anti-misoperation type grounding switch |
| CN110988518B (en) * | 2019-11-12 | 2021-09-24 | 国网河北省电力有限公司 | Portable automatic discharging rod |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2588564Y (en) * | 2002-06-11 | 2003-11-26 | 刘叔铭 | Grounding wire with alarm |
| CN202975225U (en) * | 2012-12-13 | 2013-06-05 | 云南电网公司临沧供电局 | Misoperation preventive device for power transmission lines |
| CN203491494U (en) * | 2013-09-24 | 2014-03-19 | 国家电网公司 | Anti-misoperation ground wire operating lever |
| CN203644978U (en) * | 2013-12-20 | 2014-06-11 | 重庆渝电防雷技术股份有限公司 | Multifunctional ground wire operating rod |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6501385B1 (en) * | 2001-07-26 | 2002-12-31 | O'quinn Bruce C. | Ground buzzer |
| CN2662464Y (en) * | 2003-08-13 | 2004-12-08 | 王修波 | Ground wire clamp |
| CN201466255U (en) * | 2009-07-14 | 2010-05-12 | 智勇军 | Grounding wire operating rod with approaching alarm function |
| JP2013073767A (en) * | 2011-09-28 | 2013-04-22 | Chugoku Electric Power Co Inc:The | Ground short-circuit instrument and ground short-circuit instrument synthesis |
| CN203232973U (en) * | 2013-05-10 | 2013-10-09 | 国家电网公司 | Portable grounding wire with live-wire alarm function |
| CN203491471U (en) * | 2013-09-25 | 2014-03-19 | 国家电网公司 | Anti-error type electric ground wire operating lever |
| CN103531925B (en) * | 2013-10-29 | 2016-02-24 | 国家电网公司 | A kind of power equipment maintaining high-voltage earthing tool |
| CN104037516A (en) * | 2014-06-13 | 2014-09-10 | 国网四川省电力公司双流县供电分公司 | Grounding device for high-voltage wire |
| CN104241969B (en) * | 2014-09-19 | 2016-09-14 | 国家电网公司 | A kind of simple type short-circuit grounding device |
| CN104201513B (en) * | 2014-09-19 | 2016-10-05 | 国家电网公司 | A kind of anti-misoperation short-circuit grounding wire based on location bar |
| CN104201486B (en) * | 2014-09-19 | 2016-07-20 | 国家电网公司 | A kind of Portable short-circuit grounding device |
-
2014
- 2014-09-19 CN CN201710271551.5A patent/CN107134695B/en active Active
- 2014-09-19 CN CN201710271539.4A patent/CN106941227B/en active Active
- 2014-09-19 CN CN201410483052.9A patent/CN104241968B/en active Active
- 2014-09-19 CN CN201710270831.4A patent/CN107104328B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2588564Y (en) * | 2002-06-11 | 2003-11-26 | 刘叔铭 | Grounding wire with alarm |
| CN202975225U (en) * | 2012-12-13 | 2013-06-05 | 云南电网公司临沧供电局 | Misoperation preventive device for power transmission lines |
| CN203491494U (en) * | 2013-09-24 | 2014-03-19 | 国家电网公司 | Anti-misoperation ground wire operating lever |
| CN203644978U (en) * | 2013-12-20 | 2014-06-11 | 重庆渝电防雷技术股份有限公司 | Multifunctional ground wire operating rod |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104201485A (en) * | 2014-09-19 | 2014-12-10 | 国家电网公司 | Short circuit grounding wire device with locking function |
| CN104201486A (en) * | 2014-09-19 | 2014-12-10 | 国家电网公司 | Portable short-circuit grounding device |
| CN104901034A (en) * | 2015-05-07 | 2015-09-09 | 国家电网公司 | Grounding device for avoiding misoperaiton of wiring sequence |
| CN104901034B (en) * | 2015-05-07 | 2018-07-24 | 国家电网公司 | A kind of earthing or grounding means avoiding order of connection maloperation |
| CN107069259A (en) * | 2016-12-12 | 2017-08-18 | 国网北京市电力公司 | Portable ground wire |
| CN107069259B (en) * | 2016-12-12 | 2019-05-24 | 国网北京市电力公司 | Portable ground line |
| CN107238776A (en) * | 2017-05-27 | 2017-10-10 | 国网河南省电力公司平顶山供电公司 | It is a kind of to prevent detection warning device of the transformer station with safety measure power transmission |
| CN107238776B (en) * | 2017-05-27 | 2020-10-02 | 国网河南省电力公司平顶山供电公司 | Detection alarm device for preventing transformer substation from transmitting power with safety measures |
| CN109244700A (en) * | 2018-11-12 | 2019-01-18 | 国网安徽省电力有限公司合肥供电公司 | A kind of anti-error hanging earthing conductor device and control method |
| CN113991331A (en) * | 2021-11-22 | 2022-01-28 | 贵州电网有限责任公司 | Safe and reliable high-voltage grounding connecting wire clamp |
| CN113991331B (en) * | 2021-11-22 | 2023-10-24 | 贵州电网有限责任公司 | Safe and reliable high-voltage grounding connecting wire clamp |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106941227B (en) | 2019-02-19 |
| CN106941227A (en) | 2017-07-11 |
| CN107134695A (en) | 2017-09-05 |
| CN107104328B (en) | 2019-06-18 |
| CN104241968B (en) | 2017-07-28 |
| CN107134695B (en) | 2019-05-21 |
| CN107104328A (en) | 2017-08-29 |
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