CN106898992A - High voltage power transmission is grounded anti-misoperation apparatus and control method - Google Patents
High voltage power transmission is grounded anti-misoperation apparatus and control method Download PDFInfo
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- CN106898992A CN106898992A CN201710167824.1A CN201710167824A CN106898992A CN 106898992 A CN106898992 A CN 106898992A CN 201710167824 A CN201710167824 A CN 201710167824A CN 106898992 A CN106898992 A CN 106898992A
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- ground connection
- binding clip
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- locking mechanism
- ground
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- 238000004804 winding Methods 0.000 claims abstract description 8
- 239000004020 conductor Substances 0.000 claims description 30
- 238000007689 inspection Methods 0.000 claims description 6
- 230000001960 triggered effect Effects 0.000 claims description 3
- 208000027418 Wounds and injury Diseases 0.000 description 8
- 230000005611 electricity Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000000739 chaotic effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G13/00—Installations of lightning conductors; Fastening thereof to supporting structure
- H02G13/40—Connection to earth
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Abstract
The invention discloses a kind of high voltage power transmission ground connection anti-misoperation apparatus and control method, the device includes three-phase binding clip and wire, ground wire and ground connection termination；Electric box, including Wire-wound mechanism, for winding three-phase conducting wire；Three wire clamp grooves, for housing or hanging corresponding binding clip；Ground wire end slot, for housing or hanging the ground connection termination；Binding clip playback switch, for triggering signal in place when binding clip playbacks；Ground connection termination playback switch, for triggering signal in place when the ground connection termination is playbacked；Binding clip locking mechanism, is arranged on each wire clamp groove, for controllably locking or unlocking the binding clip；Ground connection locking mechanism, is arranged on the ground connection termination, for controllably locking or unlocking the ground connection termination；And controller, for control the binding clip locking mechanism and the ground connection locking mechanism unblock sequentially.By the way of locking and unblock coordinate, ground connection control logic is tight, it is swift to operate to be grounded for the present invention.
Description
Technical field
The present invention relates to a kind of high voltage power transmission ground connection anti-misoperation apparatus and control method.
Background technology
In electric power safety production, installing ground wire is that the technology of important guarantee operating personnel's personal safety is arranged
Apply.《Electric power safety working regulation (circuit pack)》3rd, 4,5 articles propose clearly operation requirement to installing and removing ground wire：
During installing ground wire, ground wire should be first connect, be followed by conductor wire end, ground wire should be contacted well, and connection is reliable, the order of dismounting ground wire
In contrast.Dress, dismounting ground wire all should use insulating bar or special insulating cord.Human body must not touch ground wire or not grounded
Wire.
Traditional ground wire is made up of earth terminal, wire clamp and ground connection drainage thread, and ground wire is installed according to above-mentioned requirements,
It is accomplished by being performed according to standardized stream thread management.If there is maloperation, the sense of equipment during installing and dismounting ground wire
Should electric, the powered earth current of attaching ground wire by mistake can all cause serious personal injury accident.
Chinese utility model patent CN201985380U discloses a kind of protective earth, using " Mechanically programm's control is locked "
Solve the problems, such as to assemble and disassemble high voltage transmission line maloperation.Specifically, the earthing or grounding means of high voltage power transmission ground wire and wire clamp are used
Mechanically programm control interlocking mechanism be attached, with forcibly constrain operating personnel in strict accordance with《Electric power safety working regulation
(circuit pack)》It is required that completing the dismounting work of ground wire.
Above-mentioned protective earth is applied to single-phase earthing operating mode, and its control logic is simple, is not suitable for control logic and answers
Three-phase high-voltage (more than 10KV) the transmission of electricity short circuit ground connection operating mode of miscellaneous degree lifting.For three-phase high-voltage transmission of electricity short circuit ground connection operating mode
Speech, thread is generally long, and because three-phase ground line profile is identical, easily winding is chaotic, and line footpath is thick in addition, causes entirely to connect
Ground wire device quality is big, and assembly and disassembly operations wastes time and energy, and entirely the storage of termination, transport are inconvenient.
Therefore, it is necessary to provide a kind of high voltage power transmission ground connection anti-misoperation apparatus, transmitted electricity with suitable three-phase high-voltage and be grounded.
The content of the invention
It is an object of the invention to provide a kind of high voltage power transmission ground connection anti-misoperation apparatus, connect with meeting three-phase high-voltage transmission of electricity
Ground operation is required, and improves operating condition.
Another object of the present invention is to provide a kind of high voltage power transmission ground connection control method, connect with meeting three-phase high-voltage transmission of electricity
Ground operation is required, and improves operating condition.
Therefore, the invention provides a kind of high voltage power transmission ground connection anti-misoperation apparatus, including A connect wire clamp and A phase conductors,
B connects wire clamp and B phase conductors, C connect wire clamp and C phase conductors and ground wire and ground connection termination；Electric box, it includes：Wire
Winding mechanism, is arranged on the inside of electric box, for winding A phase conductors, B phase conductors and C phase conductors；Three wire clamp grooves, are set
On the first side wall of the electric box, for housing or hanging corresponding binding clip；Ground wire end slot, is arranged on the electric box
Second sidewall on, for housing or hanging the ground connection termination；Binding clip playback switch, is arranged on each wire clamp groove,
For triggering signal in place when binding clip playbacks；Ground connection termination playback switch, is arranged on the ground wire end slot, in institute
State when ground connection termination is playbacked and trigger signal in place；Binding clip locking mechanism, is arranged on each wire clamp groove, for controllably locking
Determine or unlock the binding clip；Ground connection locking mechanism, is arranged on the ground connection termination, described for controllably locking or unlocking
Ground connection termination；And controller, it is connected with each binding clip playback switch and ground connection termination playback switching signal, it is used for
The unblock of the binding clip locking mechanism and the ground connection locking mechanism is controlled sequentially, with antiground maloperation.
Further, controller noted above is PLC.
Further, controller noted above is single-chip microcomputer.
Further, above-mentioned ground wire playback switch and ground connection termination playback switch are travel switch.
Further, above-mentioned binding clip locking mechanism is electric control lock.
Further, above-mentioned electric box is provided with walking mechanism.
Further, above-mentioned electric box is provided with walking pull bar.
Further, above-mentioned Wire-wound mechanism is provided with crank, and the crank is arranged on the second sidewall of the electric box
On upper or the 3rd side wall facing with the second sidewall.
Further, above-mentioned Wire-wound mechanism is provided with crank, and the crank is arranged on the second sidewall of the electric box
On upper or the 3rd side wall facing with the second sidewall.
According to another aspect of the present invention, there is provided a kind of high voltage power transmission is grounded control method, retouched above using basis
The high voltage power transmission ground connection anti-misoperation apparatus stated carry out ground connection operation, comprise the following steps：Start self-inspection step：If being connect described in each
Wire clamp playback switch is in triggering state in triggering state and ground connection termination playback switch, then to each wiring
Folder locking mechanism is locked, and is otherwise alarmed；Installing ground wire step：Switched in non-when the ground connection termination playback is detected
Triggering state and the ground connection locking mechanism are in the lock state, then the binding clip locking mechanism is unlocked；And
Dismounting ground wire step：When detecting, each binding clip is in triggering state and each binding clip locking mechanism is in lock
Determine state, then the ground connection locking mechanism is unlocked.
Further, above-mentioned high voltage power transmission ground connection control method also includes terminating self-inspection step, if each binding clip is returned
Bit switch is in triggering state and ground connection termination playback switch is in triggering state, then terminate, and otherwise alarms.
In addition to objects, features and advantages described above, the present invention also has other objects, features and advantages.
Below with reference to figure, the present invention is further detailed explanation.
Brief description of the drawings
The Figure of description for constituting the part of the application is used for providing a further understanding of the present invention, of the invention to show
Meaning property and its illustrates, for explaining the present invention, not constitute inappropriate limitation of the present invention embodiment.In the accompanying drawings：
Fig. 1 is the structural representation that high voltage power transmission according to an embodiment of the invention is grounded anti-misoperation apparatus；
Fig. 2 shows that high voltage power transmission according to an embodiment of the invention is grounded the Wire-wound mechanism of anti-misoperation apparatus；
Fig. 3 is the schematic diagram of the control program of high voltage power transmission ground connection anti-misoperation apparatus according to an embodiment of the invention；
Fig. 4 is showing for second control program of high voltage power transmission ground connection anti-misoperation apparatus according to an embodiment of the invention
It is intended to；
Fig. 5 shows that high voltage power transmission according to an embodiment of the invention is grounded the binding clip and wire clamp groove of anti-misoperation apparatus
Matching relationship schematic diagram；
Fig. 6 shows ground connection termination and the ground connection of high voltage power transmission ground connection anti-misoperation apparatus according to an embodiment of the invention
Matching relationship schematic diagram between locking mechanism；And
Fig. 7 is the flow chart that High voltage output of the invention is grounded control method.
Description of reference numerals
10th, electric box；11/12/13rd, three wire clamp grooves；
14th, ground wire end slot；15th, telescopic lever；
16th, crank；17th, walking mechanism；
20th, A connects wire clamp；21st, A phase conductors；
30th, it is grounded termination；31st, ground wire；
32nd, fixed frame；33rd, depression bar；
34th, briquetting；35th, turning handle；
50th, Wire-wound mechanism；51/52/53rd, reel；
57th, support base；57a, conducting slip ring；
57b, insulating support；54th, rotating shaft；
60th, PLC；60 ', single-chip microcomputer；
70th, it is grounded locking mechanism；71st, ground connection locking trigger button；
72nd, electromagnet；73rd, lock tube；
74th, turning handle via；75th, sliding block；
76th, inner chamber；111/121/131st, binding clip playback switch；
141st, ground connection termination playback switch；112/122/132nd, binding clip locking mechanism.
Specific embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
Fig. 1 to Fig. 7 shows some embodiments of the invention.
With reference to referring to figs. 1 to Fig. 3, high voltage power transmission ground connection anti-misoperation apparatus of the invention include：A connects wire clamp 20
Connect wire clamp with A phase conductors 21, B and B phase conductors, C connect wire clamp and C phase conductors (not shown in figure 1) and ground connection termination 30
With ground wire 31, also including electric box 10, for receive each earthy part and force control ground connection sequentially.Wherein, the electricity
Gas tank 10 includes：
Three wire clamp grooves 11,12 and 13, are arranged on the first side wall of the electric box 10, corresponding for housing or hanging
Binding clip 20；
Ground wire end slot 14, is arranged in the second sidewall of the electric box 10, for housing or hanging the ground connection termination
30；
Wire-wound mechanism 50, is arranged on the inside of electric box 10, is led with C phases for winding A phase conductors 21, B phase conductors
Line；
Binding clip playback switch 111,121 and 131, be arranged in correspondence with each wire clamp groove 11,12 and 13, for
Signal in place is triggered when each binding clip 20 playbacks；
Ground connection termination playback switch 141, is arranged on the ground wire end slot 14, for playbacking ground in the ground connection termination 30
Signal in place is triggered during line end groove 14；
Binding clip locking mechanism 112,122 and 132, is arranged in correspondence with each wire clamp groove 11,12 and 13, for receiving
The locking of control ground unlocks each binding clip 20；
Ground connection locking mechanism 70, is arranged on the ground connection termination 30, for controllably locking or unlocking the earth terminal
First 30；And
Controller, with each binding clip playback switch 111,121,131 and ground connection termination playback 141 signals of switch
Connection, for controlling the binding clip locking mechanism 112,122,132 and the unblock for being grounded locking mechanism 70 sequentially, in case
Ground connection maloperation.
High voltage power transmission ground connection anti-misoperation apparatus of the invention are body structure, and ground connection is moved to when ground connection uses
Scene, the unblock for controlling binding clip locking mechanism and the ground connection locking mechanism by controller sequentially, realizes that antiground is grasped by mistake
It is required, and A phase conductors, B phase conductors and C phase conductors are received by wire reel number mechanism, and binding clip and ground connection termination point
Do not housed or hung by wire clamp groove and ground wire end slot, ground connection operation time and storage time are short, operate scene in good order,
It is time saving and energy saving.
In one embodiment, above-mentioned electric box 10 is provided with walking mechanism 17, such as road wheel, and such equipment transition is convenient.
Further, electric box is provided with telescopic lever 15, by the telescopic lever 15, is moved easily electric box 10.
In one embodiment, as shown in Fig. 2 Wire-wound mechanism includes rotating shaft 54, three volumes being set up in parallel in rotating shaft
Cylinder 51,52 and 53 and two support bases 57, wherein three reels 51,52 are respectively used to winding A phase conductors 21, B phases with 53 leading
Line and C phase conductors, A phase conductors, B phase conductors and C phase conductors are connected in rotating shaft 54, and the support base 57 includes conducting slip ring 57a
With the insulating support 57b for supporting the conducting slip ring 57, conducting slip ring 57a is electrically connected with ground wire 31, in this way, A phase conductors
21st, B phase conductors and C phase conductors are electrically connected to ground wire 31.In the present embodiment, each phase conductor storage is convenient, with prior art
Compare, the length of ground wire is correspondingly significantly shortened.
In one embodiment, as shown in Fig. 2 Wire-wound mechanism drives rotation by crank 16.In other embodiments, lead
Line winding mechanism is driven by motor and rotated.
In one embodiment, as shown in figure 3, controller is PLC 60, three binding clip playback switches 111,121
With the one of the input module that 131, ground connection termination playback switch 141, ground connection locking trigger button 71 are respectively connecting to PLC
Input node, three binding clip locking mechanisms 112,122 and 132 and ground connection locking mechanism 70 are respectively connecting to PLC
Output module an output node, and be powered by a power supply.Its control logic is as follows：When playback switch in ground connection termination is in non-touch
Hair-like state and ground connection locking mechanism are in the lock state, then the binding clip locking mechanism is unlocked；And when each described
Binding clip playback switch is in triggering state and each binding clip locking mechanism is in the lock state, then locked according to ground connection
The trigger signal of trigger button is unlocked to the ground connection locking mechanism.The PLC is selected from German Muller
(MOELLER) the easy4 series Programmable logic Controller (PLC)s of company.
In one embodiment, as shown in figure 4, controller is single-chip microcomputer 60 ', three 111,121 and of binding clip playback switch
131st, ground connection termination playback switch 141, ground connection locking trigger button 71, three binding clip locking mechanisms 112,122 and
132nd, one is grounded the I/0 nodes that locking mechanism 70 is respectively connecting to the output module of PLC.Its control logic is such as
Under：When playback switch in ground connection termination is in the lock state in non-toggle state and ground connection locking mechanism, then to the binding clip
Locking mechanism is unlocked；And when each binding clip playback switch is in triggering state and each binding clip locking machine
Structure is in the lock state, then the trigger signal according to ground connection locking trigger button is unlocked to the ground connection locking mechanism.Should
Single-chip microcomputer is selected from 80C51 single-chip microcomputers.
In one embodiment, as shown in figure 5, being provided with binding clip playback switch 111 and binding clip locking machine in wire clamp groove 11
Structure 112, when binding clip playbacks, triggering binding clip playback switch 111 and binding clip locking mechanism 112 lock binding clip automatically.
Preferably, binding clip playback switch 111 and ground connection termination playback switch 141 are travel switch, each binding clip locking mechanism
112nd, 122,132 plug or electric control lock are.
In one embodiment, as shown in fig. 6, the ground connection termination 30 of routine include fixed frame 32, depression bar 33, briquetting 34, with
And positioned at the turning handle 35 (being used for rotating operation) on the top of depression bar 33.
Ground connection locking mechanism 70 includes lock tube 73, and the lock tube 73 includes turning handle via 74 and accommodates the interior of the turning handle 35
Chamber 76, the ground connection locking mechanism also includes electromagnet 72 and sliding block 75, and wherein sliding block 75 is received electromagnetism by the motion of electromagnet 72
Iron 72 is controlled, and when electromagnet obtains electric, sliding block 75 opens the turning handle via 74.When sliding block resets and enters turning handle via, resistance
Gear turning handle leaves lock tube by turning handle via, and now lock tube can be rotated relative to ground connection termination, and can not operate turning handle 35.
Above-mentioned ground connection locking mechanism also includes ground connection locking trigger button 71, and ground connection locking trigger button 71 is connected to control
Device processed.When to unlock and open sliding block, press trigger button and provide a trigger signal, controller according to the trigger signal and
Ground connection control logic, it is determined whether open sliding block.Sliding block is opened when ground connection control logic is met, is otherwise not responding to or is alarmed.
The process for installing lock tube 73 is as follows：Press trigger button and provide a trigger signal, if each binding clip playback
Switch is in triggering state and each binding clip locking mechanism is in the lock state, then open sliding block, and turning handle is by turning handle mistake
Hole (cross section profile with turning handle is basically identical, is substantially rectangle) enters inner chamber, then one angle of lock tube, that is, realize lock
It is fixed, unclamp trigger button, then sliding block relocks turning handle via, realizes locking of the lock tube on depression bar, and such external world can not connect
Touch turning handle and open ground connection termination.
As shown in fig. 7, present invention also offers a kind of high voltage power transmission ground connection control method, comprising the following steps：
Device puts step S10, above-mentioned high voltage power transmission ground connection anti-misoperation apparatus is moved into ground connection scene；
Start self-inspection step S20：If each binding clip playback switch is returned in triggering state and the ground connection termination
Bit switch is in triggering state, then each binding clip locking mechanism is locked, and otherwise alarms；
Installing ground wire step S30：When detecting ground connection termination playback switch in non-toggle state and described
Ground connection locking mechanism is in the lock state, then the binding clip locking mechanism is unlocked；
Dismounting ground wire step S40：Triggering state and each wiring clamp lock are in when each binding clip is detected
Determine mechanism to be in the lock state, then the ground connection locking mechanism is unlocked；And
Terminate self-inspection step S50, if each binding clip playback switch is opened in triggering state, ground connection termination playback
Close and be in the lock state in triggering state and each binding clip locking mechanism, then terminate, otherwise alarm.
Control method of the invention, using locking by the way of ground connection order is controlled, the tight of control logic with
Prior art is compared, and is grounded simple and quick.
The preferred embodiments of the present invention are the foregoing is only, is not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.It is all within the spirit and principles in the present invention, made any repair
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (9)
- A kind of 1. high voltage power transmission ground connection anti-misoperation apparatus, including A connect wire clamp and A phase conductors, B connect wire clamp and B phase conductors, C connects wire clamp and C phase conductors and ground wire and ground connection termination, it is characterised in that also include：Electric box, including：Wire-wound mechanism, is arranged on the inside of electric box, for winding A phase conductors, B phase conductors and C phases Wire；Three wire clamp grooves, are arranged on the first side wall of the electric box, for housing or hanging corresponding binding clip；Ground wire End slot, is arranged in the second sidewall of the electric box, for housing or hanging the ground connection termination；Binding clip playback switch, is arranged on each wire clamp groove, for triggering signal in place when binding clip playbacks；Ground connection termination playback switch, is arranged on the ground wire end slot, believes in place for being triggered when the ground connection termination is playbacked Number；Binding clip locking mechanism, is arranged on each wire clamp groove, for controllably locking or unlocking the binding clip；Ground connection locking mechanism, is arranged on the ground connection termination, for controllably locking or unlocking the ground connection termination；AndController, is connected with each binding clip playback switch and ground connection termination playback switching signal, described for controlling The unblock of binding clip locking mechanism and the ground connection locking mechanism sequentially, with antiground maloperation.
- 2. high voltage power transmission according to claim 1 is grounded anti-misoperation apparatus, it is characterised in that the controller is PLC Controller.
- 3. high voltage power transmission according to claim 1 is grounded anti-misoperation apparatus, it is characterised in that the controller is monolithic Machine.
- 4. high voltage power transmission according to claim 1 is grounded anti-misoperation apparatus, it is characterised in that the ground wire playback is opened Close and playback switch in ground connection termination is travel switch.
- 5. high voltage power transmission according to claim 1 is grounded anti-misoperation apparatus, it is characterised in that the binding clip locks machine Structure is electric control lock.
- 6. high voltage power transmission according to claim 1 is grounded anti-misoperation apparatus, it is characterised in that the electric box is provided with row Walk mechanism and telescopic lever.
- 7. high voltage power transmission according to claim 1 is grounded anti-misoperation apparatus, it is characterised in that the Wire-wound mechanism Crank is provided with, the crank is arranged on the 3rd side in the second sidewall of the electric box or facing with the second sidewall On wall.
- 8. a kind of high voltage power transmission is grounded control method, it is characterised in that comprise the following steps：High voltage power transmission according to any one of claim 1 to 7 ground connection anti-misoperation apparatus are moved to ground connection scene；Start self-inspection step：If each binding clip playback switch is in triggering state and ground connection termination playback switch In triggering state, then each binding clip locking mechanism is locked, otherwise alarmed；Installing ground wire step：Non-toggle state and the ground lock are in when the ground connection termination playback switch is detected Determine mechanism to be in the lock state, then the binding clip locking mechanism is unlocked；AndDismounting ground wire step：It is at triggering state and each binding clip locking mechanism when each binding clip is detected In lock-out state, then the ground connection locking mechanism is unlocked.
- 9. high voltage power transmission according to claim 8 is grounded control method, it is characterised in that also including terminating self-inspection step, If each binding clip playback switch is in triggering state and each institute in triggering state, ground connection termination playback switch State binding clip locking mechanism to be in the lock state, then terminate, otherwise alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710167824.1A CN106898992B (en) | 2017-03-21 | 2017-03-21 | High voltage power transmission is grounded anti-misoperation apparatus and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710167824.1A CN106898992B (en) | 2017-03-21 | 2017-03-21 | High voltage power transmission is grounded anti-misoperation apparatus and control method |
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| Publication Number | Publication Date |
|---|---|
| CN106898992A true CN106898992A (en) | 2017-06-27 |
| CN106898992B CN106898992B (en) | 2018-08-17 |
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| CN201710167824.1A Active CN106898992B (en) | 2017-03-21 | 2017-03-21 | High voltage power transmission is grounded anti-misoperation apparatus and control method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110112588A (en) * | 2019-06-19 | 2019-08-09 | 广东电网有限责任公司 | A kind of ground line five-preventing system |
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| JP2009005427A (en) * | 2007-06-19 | 2009-01-08 | Chugoku Electric Power Co Inc:The | Indirect hot-line tool |
| CN201985380U (en) * | 2011-04-18 | 2011-09-21 | 衡水供电公司 | Safe earth wire |
| CN105305182A (en) * | 2015-11-09 | 2016-02-03 | 国网山东胶州市供电公司 | Warning grounding device |
| CN106299750A (en) * | 2015-06-10 | 2017-01-04 | 国家电网公司 | A kind of electrical anti-error operational grounding line |
| CN206524613U (en) * | 2017-03-21 | 2017-09-26 | 国网安徽省电力公司检修公司 | High voltage power transmission is grounded anti-misoperation apparatus |
-
2017
- 2017-03-21 CN CN201710167824.1A patent/CN106898992B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009005427A (en) * | 2007-06-19 | 2009-01-08 | Chugoku Electric Power Co Inc:The | Indirect hot-line tool |
| CN201985380U (en) * | 2011-04-18 | 2011-09-21 | 衡水供电公司 | Safe earth wire |
| CN106299750A (en) * | 2015-06-10 | 2017-01-04 | 国家电网公司 | A kind of electrical anti-error operational grounding line |
| CN105305182A (en) * | 2015-11-09 | 2016-02-03 | 国网山东胶州市供电公司 | Warning grounding device |
| CN206524613U (en) * | 2017-03-21 | 2017-09-26 | 国网安徽省电力公司检修公司 | High voltage power transmission is grounded anti-misoperation apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110112588A (en) * | 2019-06-19 | 2019-08-09 | 广东电网有限责任公司 | A kind of ground line five-preventing system |
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| Publication number | Publication date |
|---|---|
| CN106898992B (en) | 2018-08-17 |
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| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: No. 397, Tongcheng South Road, Baohe District, Hefei City, Anhui Province 230061 Patentee after: STATE GRID ANHUI POWER SUPPLY COMPANY OVERHAUL BRANCH Patentee after: STATE GRID CORPORATION OF CHINA Address before: No.415 Wuhu Road, Baohe District, Hefei City, Anhui Province 230061 Patentee before: Maintenance Company Of State Grid Anhui Electric Power Company Patentee before: State Grid Corporation of China |
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| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 397, Tongcheng South Road, Baohe District, Hefei City, Anhui Province 230061 Patentee after: Super high voltage branch of State Grid Anhui Electric Power Co.,Ltd. Patentee after: STATE GRID CORPORATION OF CHINA Address before: No. 397, Tongcheng South Road, Baohe District, Hefei City, Anhui Province 230061 Patentee before: STATE GRID ANHUI POWER SUPPLY COMPANY OVERHAUL BRANCH Patentee before: STATE GRID CORPORATION OF CHINA |