CN104201513B - A kind of anti-misoperation short-circuit grounding wire based on location bar - Google Patents
A kind of anti-misoperation short-circuit grounding wire based on location bar Download PDFInfo
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- CN104201513B CN104201513B CN201410483652.5A CN201410483652A CN104201513B CN 104201513 B CN104201513 B CN 104201513B CN 201410483652 A CN201410483652 A CN 201410483652A CN 104201513 B CN104201513 B CN 104201513B
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- location bar
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- 230000005611 electricity Effects 0.000 claims description 11
- 230000006698 induction Effects 0.000 claims description 11
- 229910052754 neon Inorganic materials 0.000 claims description 4
- GKAOGPIIYCISHV-UHFFFAOYSA-N neon atom Chemical compound [Ne] GKAOGPIIYCISHV-UHFFFAOYSA-N 0.000 claims description 4
- 230000005284 excitation Effects 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 239000004020 conductor Substances 0.000 description 4
- 238000010891 electric arc Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 230000000505 pernicious effect Effects 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 208000033999 Device damage Diseases 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- Electric Cable Installation (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The present invention relates to a kind of anti-misoperation short-circuit grounding wire based on location bar, including action bars (1), ground connection chuck (4), earth lead exit (13), ground lead (24) and earth terminal chuck (5), described ground connection chuck (4) is connected with ground lead (24) by earth lead exit (13), described ground lead (24) is connected with earth terminal chuck (5), and described action bars (1) is provided with charged prior-warning device (6) near ground connection chuck (4) side；Described charged prior-warning device (6) includes misoperation-proof locking device (7).Compared with prior art, the present invention has the advantages such as safe and reliable, easy to operate.
Description
Technical field
The present invention relates to field of power, especially relate to a kind of anti-misoperation short circuit grounding based on location bar
Line.
Background technology
Short-circuit grounding wire is the safety appliance that a kind of electric power apparatus examination operation is indispensable, but carrys additionally short circuit and connect electricity
The operation of line is once slipped up, and carrys additionally short-circuit grounding wire to the power equipment of charging operation such as by mistake, will cause
Serious high pressure equipment metallic earthing short circuit, produces great short circuit current and high-temperature electric arc, causes field apparatus
The major accident that moment burns, operator's electric arc burn is even dead.
Along with in-depth and the progress of technology of anti-misoperation management system, power industry misoperation fault declines year by year,
But a lot of pernicious misoperation fault also fails to fundamentally stop, the pernicious behaviour by mistake of such as band cable address short-circuit grounding wire
Make accident the most still to happen occasionally.Both caused serious device damage with cable address short-circuit grounding wire, also resulted in the tightest
The personal injury of weight, but this problem is so far still without the solution of technological layer.Chinese patent
CN201210398449 proposes a kind of anti-misoperation electricity earthing cable, and this technology is by conventional short-circuit grounding wire
Between ground connection chuck and earth terminal chuck, interlock is set, " first hang equipment end, hang earth terminal afterwards " can be prevented
Violation operation situation, but for being grounded equipment and sending a telegram here suddenly, equipment nameplate mark mistake, electroscope fault etc.
The mistake caused is to the situation of charging operation hanging equipment earth lead, and this technology, entirely without effect, develops one logical for this
Cross technological means to stop the scheme of band cable address short-circuit grounding wire and just seem particularly necessary.
Summary of the invention
Defect that the purpose of the present invention is contemplated to overcome above-mentioned prior art to exist and provide a kind of safe and reliable,
Easy to operate anti-misoperation short-circuit grounding wire based on location bar.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of anti-misoperation short-circuit grounding wire based on location bar, it is characterised in that include action bars 1, earth clip
4, earth lead exit 13, ground lead 24 and earth terminal chuck 5, described ground connection chuck 4 passes through ground connection
Line exit 13 is connected with ground lead 24, and described ground lead 24 is connected with earth terminal chuck 5, described
Action bars 1 is provided with charged prior-warning device 6 near ground connection chuck 4 side；
Described charged prior-warning device 6 includes misoperation-proof locking device 7, and this misoperation-proof locking device 7 includes electricity
Magnet 8, impedor, location bar 9, auxiliary chuck 10 and moving contact 14, described location bar 9 is vertically arranged
In the bottom of ground connection chuck 4, the top of described action bars 1 is provided with and pushes away screw thread 22, described auxiliary chuck 10
Side is provided with hole corresponding with positioning bar 9, opposite side be provided with action bars 1 above push away the corresponding spiral shell of screw thread 22
Pit, described auxiliary chuck 10 top is additionally provided with the moving contact 14 contacted with ground connection chuck 4, described electric magnet
8 sides being located at described auxiliary chuck 10, the top of described action bars 1 is provided with several bayonet sockets 11, described card
Mouth 11 is corresponding with armature 12 position of described electric magnet 8, and described impedor is located at the interior of described location bar 9
Portion and with described ground connection chuck 4, electric magnet 8 coils connected in series after be connected with described auxiliary chuck 10, described
Earth lead exit 13 is located on auxiliary chuck 10；
When operator are when carrying out ground connection maloperation, described ground connection chuck 4 is near having electric equipment, described electric magnet
8 excitations immediately, make armature 12 eject immediately, stretch into corresponding bayonet socket 11, blocked by action bars 1, nothing
Method continues operation.
Described impedor be in series with LED, neon lamp and or buzzer, when operator are carrying out ground connection maloperation
Time, described LED, neon lamp or buzzer send sound and light alarm.
Described impedor is in series by resistance, electric capacity or resistance capacitance.
Described ground lead 24 be three-phase convergent current type or three-phase split type.
Described ground connection chuck 4 is spiral or spring.
Also including last secondary earth lead discriminating gear 16, this last secondary earth lead discriminating gear 16 is one
Body formula or dismountable type, in order to differentiate whether this functional arrangement is last secondary ground path.
Last width earth lead discriminating gear 16 described includes that 17, AC signal of an induction coil occurs electricity
18, one, road, 19, impedance measuring circuit 20 of power circuit and a display circuit 21, described exchange letter
Number occur to connect with impedance measuring circuit 20 and induction coil 17 described in circuit 18, described power circuit 19
It 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 lead is hung in time having electric equipment by operator, the alarm device on contact or blocking device above earth lead
Action, reminds operator's equipment live, it is necessary to stopping hanging ground-wire immediately, locking type product can also close ground connection immediately
Chuck or isolation ground lead, make earth lead to hang up, and fundamentally avoid that by mistake hanging earthing conductor causes is pernicious
Accident.The present invention can also have last earth lead discrimination function, the side injected by custom-designed AC signal
Formula judges whether the earth lead 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 the present invention；
Fig. 2 is the circuit block diagram of last secondary earth lead discriminating gear of the present invention.
Detailed description of the invention
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment one
Referring to accompanying drawing 1, this is the structural representation of the embodiment of the present invention.The charged prior-warning device 6 of this embodiment is same
Sample is made up of misoperation-proof locking device 7, and this device is located at the top of action bars 1.This misoperation-proof locking device
Being made up of electric magnet 8, impedor, location bar 9, auxiliary chuck 10 and moving contact 14, location bar 9 is vertical
Being arranged at the bottom of ground connection chuck 4, the top of action bars 1 is provided with and pushes away screw thread 22, the side of auxiliary chuck 10
Be provided with hole corresponding with positioning bar 9, opposite side be provided with action bars 1 above push away the corresponding screwed hole of screw thread 22,
Auxiliary chuck 10 top is additionally provided with the moving contact 14 that can contact with ground connection chuck 4, and electric magnet 8 is located at additional lock
The side of 10, the top of action bars is provided with dry bayonet socket 11 of promise, the armature 12 of this bayonet socket 11 and electric magnet 8
Position is corresponding, and it is internal that impedor is located at location bar 9, this impedor and ground connection chuck 4, electric magnet 8
Being connected with auxiliary chuck 10 after coils connected in series, earth lead exit 13 is located on auxiliary chuck 10.
The operational approach of the present embodiment is similar with conventional short-circuit earth lead, when operator's hanging earthing conductor operates, first
With on-the-spot earthing bar, earth terminal chuck 5 is connect jail, and then hand-held bar 1, operation handle 3 are by the ground connection of every phase
Chuck 4 hangs up the electrical equipment needing ground connection, then rotation process bar successively, by the fastening screw thread 15 of top
Earth clip head-clamp 4 is clamped on equipment；Bigger than the pitch of fastening screw thread 15 owing to above pushing away screw thread 22, additional lock
10 can rise, until moving contact 14 touches under the upper and lower rotation pushing away screw thread 22 positioning of location bar 9
Ground connection chuck 4, ground lead 24 ability is connected with being grounded equipment, completes hanging earthing conductor operation.Operate this enforcement
During earth lead described in example, when ground connection chuck 4 being hung up the equipment of required ground connection, if equipment live, when connecing
Ground chuck 4 is in time having electric equipment, and due to the electric potential difference between earth lead and charging equipment, equipment will be to insulation shell
The electrode discharge on body top, forms obvious electric arc and frizzle, plays obvious alarm effect, reminds operation
Personnel equipment have electricity, must the most off-ground operation.Due to impedor metering function, make to flow through its electricity
Arc current is the least, will not cause arc short-circuit.If operator continue to operate by force, due to this arc current
By entering ground through ground lead 24 after impedor, wire 23, the coil of electric magnet 8, auxiliary chuck 10,
Electric magnet 8 excitation immediately, armature 12 eject immediately, stretch into corresponding bayonet socket 11, are blocked by action bars 1,
Even if the most firmly rotating, assisting chuck 10 also cannot rise and contacting with ground connection chuck 4, in any case now,
Being grounded equipment all to connect with the earth, the present embodiment, by isolation ground lead, plays forced blocking mounting ground
The effect of line.For ensure auxiliary chuck 10 the most no matter where can effectively locking, bayonet socket 11 is preferably along grasping
Make bar more than 1 and arrange several.Owing to when removing earth lead, auxiliary chuck 10 can decline under the upper effect pushing away screw thread 22
A lot so that every time during the operation of mounting ground, between auxiliary chuck 10 and ground connection chuck 4, have enough safe distances,
The most no matter how operator move back and forth, and cause accident all without causing equipment electric arc of discharge.The present embodiment also possesses
Perfect anti-incorrect manipulation deadlock function, even if personnel's cruelty operates by force, is also not result in accident, can become and prevent
Last one impassable defence line of hanging earthing conductor serious accident by mistake.Certainly, the anti-incorrect manipulation deadlock of the present embodiment
The device that device also can be combined by other similar mechanical electrics is constituted, and such as location bar can by resistivity relatively
Big conductive rubber bar doubles as impedor, above pushes away screw thread 22 and can be played by snap lock mechanism replacement etc.
Same anti-incorrect manipulation deadlock effect.
Short-circuit grounding wire on electrical equipment, is substantially and arranges to ensure overhaul of the equipments safety, once examine
Repaiied need recover power transmission time, if the short-circuit grounding wire carried additionally before forget remove, be equivalent to ground connection short
The equipment combined floodgate power transmission on road, its serious consequence caused it is also evident that.Often want during electrical equipment interruption maintenance
Overpaying short-circuit grounding wire several local extensions, as long as there being a pair to forget, dismounting may result in catastrophic serious thing
Therefore.Although line combined floodgate power transmission with ground seldom results in personal injury caused by an accident, but also equipment and electrical network can be caused serious harm,
For this problem, the present embodiment it be also provided with last secondary earth lead discriminating gear 16, in order to overcome
Earth lead is omitted and is removed the potential safety hazard caused.This device includes 17, AC signal of an induction coil
There is circuit 19, impedance measuring circuit 20 of 18, power circuit and a display circuit 21, exchange
Signal generating circuit 18 is connected with impedance measuring circuit 20 and induction coil 17, power circuit 19 with exchange letter
Number circuit 18 is occurred to be connected, referring to shown in accompanying drawing 2.
Induction coil 17 is for ground lead 24 coupled signal electric current, and power circuit 19 occurs to AC signal
Circuit 18 is powered, and is allowed to produce an AC signal, and then this signal transports to sensing by impedance measuring circuit 20
Coil 17, this AC signal is loaded into ground lead 24 by the way of electromagnetic induction couples by induction coil 17
On, if this earth lead is last the secondary earth lead hung on this electrical equipment, then this AC signal is at grounding lead
Can not constitute loop on line, the input impedance of induction coil is the biggest, and this resistance value is passed through aobvious by impedance measuring circuit
Showing that circuit 20 shows, operator are by the impedance of display, so that it may know that this pair earth lead is that last is secondary
Earth lead, just can normal power transmission after dismounting.If this electrical equipment also hangs with other earth leads do not removed, then this
Individual AC signal constitutes loop by the earth on ground lead, and the input impedance of induction coil is the least, and impedance is surveyed
This resistance value is shown by amount circuit equally by display circuit 20, and operator are by the impedance of display, just
Know on this equipment, also have the earth lead omitted, could power transmission after needing dismounting clear.Line of induction snare is preferably ground connection
Lead-in wire three-phase river outlet, the most once tests and just can know that three-phase ground line has been removed totally the most.AC signal
Occur circuit AC signal frequency can not be too high or too low, to be preferred close to power frequency, prevent frequency too high too low,
Transformer Winding or capacitor shunting on equipment cause measurement inaccurate.Last secondary earth lead that the present embodiment possesses
Discrimination function, is allowed to possessed the dual strick precaution effect preventing live connection of ground wire, preventing line combined floodgate power transmission with ground
Really, improve the anti-misoperation performance of the present invention further, can fundamentally stop because earth lead misoperation is drawn
Electricity power production accident.Certainly, last secondary earth lead discriminating gear of the present embodiment also can be similar to by other
Impedance loop test circuit composition.
The present embodiment is particularly suited for various earth lead indoor, outdoor and uses.Its frame for movement is the most ingenious, produces
Convenient, required parts, without particular/special requirement, use the most very convenient, it is not necessary to unnecessary operation, when for cable, electricity
When the ground connection of container operates, the impedor of the present embodiment has also possessed the effect of discharging rod, therefore can remove electric discharge from
Operation, improves the convenience of operation.Those skilled in the art are by the understanding to above example of the present invention, complete
Entirely can be designed that more similar product of the present invention with misoperation-proof locking device, it is clear that these belong to this
The protection domain of invention.
Claims (7)
1. one kind based on location bar anti-misoperation short-circuit grounding wire, it is characterised in that include action bars (1),
Ground connection chuck (4), earth lead exit (13), ground lead (24) and earth terminal chuck (5), described in connect
Ground chuck (4) is connected with ground lead (24) by earth lead exit (13), described ground lead (24)
Being connected with earth terminal chuck (5), described action bars (1) is provided with charged early warning dress near ground connection chuck (4) side
Put (6)；
Described charged prior-warning device (6) includes misoperation-proof locking device (7), this misoperation-proof locking device (7)
Including electric magnet (8), impedor, location bar (9), auxiliary chuck (10) and moving contact (14), described
Location bar (9) is vertically installed in the bottom of ground connection chuck (4), and the top of described action bars (1) is provided with and pushes away
Screw thread (22), the side of described auxiliary chuck (10) is provided with and positions bar (9) corresponding hole, and opposite side sets
Have with action bars (1) above push away screw thread (22) corresponding screwed hole, described auxiliary chuck (10) top also sets
Having the moving contact (14) contacted with ground connection chuck (4), described electric magnet (8) is located at described auxiliary chuck (10)
Side, the top of described action bars (1) is provided with several bayonet sockets (11), described bayonet socket (11) and described electricity
Armature (12) position of Magnet (8) is corresponding, described impedor be located at described location bar (9) inside,
And with described ground connection chuck (4), electric magnet (8) coils connected in series after be connected with described auxiliary chuck (10),
Described earth lead exit (13) is located in auxiliary chuck (10)；
When operator are when carrying out ground connection maloperation, described ground connection chuck (4) is near having electric equipment, described electricity
Magnet (8) excitation immediately, makes armature (12) eject immediately, stretches into corresponding bayonet socket (11), will operation
Bar (1) blocks, it is impossible to continue operation.
A kind of anti-misoperation short-circuit grounding wire based on location bar the most according to claim 1, its feature exists
In, described impedor is in series with LED, neon lamp and buzzer, when operator are when carrying out ground connection maloperation,
Described LED, neon lamp and buzzer send sound and light alarm.
A kind of anti-misoperation short-circuit grounding wire based on location bar the most according to claim 1, its feature exists
In, described impedor is in series by resistance, electric capacity or resistance capacitance.
A kind of anti-misoperation short-circuit grounding wire based on location bar the most according to claim 1, its feature exists
In, described ground lead (24) be three-phase convergent current type or three-phase split type.
A kind of anti-misoperation short-circuit grounding wire based on location bar the most according to claim 1, its feature exists
In, described ground connection chuck (4) is spiral or spring.
A kind of anti-misoperation short-circuit grounding wire based on location bar the most according to claim 1, its feature exists
In, also include last secondary earth lead discriminating gear (16), this last secondary earth lead discriminating gear (16)
For integral type or dismountable type, in order to differentiate whether this functional arrangement is last secondary ground path.
A kind of anti-misoperation short-circuit grounding wire based on location bar the most according to claim 6, its feature exists
In, last width earth lead discriminating gear (16) described includes an induction coil (17), an AC signal
There is circuit (18), a power circuit (19), an impedance measuring circuit (20) and a display circuit (21),
Described ac signal circuit (18) is connected with described impedance measuring circuit (20) and induction coil (17),
Described power circuit (19) is connected with described ac signal circuit (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410483652.5A CN104201513B (en) | 2014-09-19 | 2014-09-19 | A kind of anti-misoperation short-circuit grounding wire based on location bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410483652.5A CN104201513B (en) | 2014-09-19 | 2014-09-19 | A kind of anti-misoperation short-circuit grounding wire based on location bar |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104201513A CN104201513A (en) | 2014-12-10 |
| CN104201513B true CN104201513B (en) | 2016-10-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410483652.5A Active CN104201513B (en) | 2014-09-19 | 2014-09-19 | A kind of anti-misoperation short-circuit grounding wire based on location bar |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107104328B (en) * | 2014-09-19 | 2019-06-18 | 国家电网公司 | A kind of anti-misoperation short-circuit grounding device of band auxiliary collet |
| CN106356650A (en) * | 2016-08-31 | 2017-01-25 | 国网安徽省电力公司阜阳供电公司 | Warning device for preventing grounding rod from unreliable grounding |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3324029B2 (en) * | 1996-06-25 | 2002-09-17 | 大電株式会社 | Power connection clamp |
| CN2561072Y (en) * | 2002-04-25 | 2003-07-16 | 衢州电力局 | Misoperation-proof multifunctional loating programme apparatus for power ground wire |
| CN201466255U (en) * | 2009-07-14 | 2010-05-12 | 智勇军 | Grounding wire operating rod with approaching alarm function |
| JP2013013173A (en) * | 2011-06-28 | 2013-01-17 | Chugoku Electric Power Co Inc:The | Earth cable mounting tool |
| CN105811132A (en) * | 2013-10-29 | 2016-07-27 | 国网河南省电力公司漯河供电公司 | High-voltage grounding tool |
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