CN110137009A - A kind of error-proof device being manually operated by force in anti-disconnecting switch operation - Google Patents
A kind of error-proof device being manually operated by force in anti-disconnecting switch operation Download PDFInfo
- Publication number
- CN110137009A CN110137009A CN201910353193.1A CN201910353193A CN110137009A CN 110137009 A CN110137009 A CN 110137009A CN 201910353193 A CN201910353193 A CN 201910353193A CN 110137009 A CN110137009 A CN 110137009A
- Authority
- CN
- China
- Prior art keywords
- error
- lock
- manually operated
- disconnecting switch
- force
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/26—Interlocking, locking, or latching mechanisms for interlocking two or more switches
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/26—Interlocking, locking, or latching mechanisms for interlocking two or more switches
- H01H2009/265—Interlocking, locking, or latching mechanisms for interlocking two or more switches with interlocking of more than two switches
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Lock And Its Accessories (AREA)
- Switch Cases, Indication, And Locking (AREA)
Abstract
The invention discloses the error-proof devices being manually operated by force in a kind of anti-disconnecting switch operation, including isolator operating mechanism case, and anti-error control cabinet and control circuit are integrated in isolator operating mechanism case, it include electric puzzle lock, direct current magnetic padlock, door knob travel switch and multiple unlock relays in the accidentally control cabinet；The control circuit includes anti-short circuit locking and status releasing circuit and five unlocking preventions and electromagnetism lock loop, two circuits are parallel with one another, and electric puzzle lock is connected in anti-short circuit locking and status releasing circuit, direct solenoid lock is linked into five unlocking preventions and electromagnetism lock loop and controls the opening and closing of error-proof device door lock.The present invention can effectively prevent running disconnecting switch to be manually operated by force, thoroughly solve deficiency existing for " five is anti-" system, effectively prevent maloperation from making the generation of accident, it is ensured that the person and equipment safety.
Description
Technical field
The present invention relates to electric power network field, in particular to being manually operated by force in a kind of anti-disconnecting switch operation
Error-proof device.
Background technique
In the prior art, electric misoperation may cause large-area power-cuts, equipment damage, person wound in the power system
It dies.The generation of misoperation fault is prevented, ensures that power grid reliability service is important one of behave, for this purpose, five anti-producer's designs
" five is anti-" systems various out effectively to control the generation of misoperation fault, and what wherein disconnecting switch anti-misoperation was with the most use is
Electrical code identification unlocking technology, carries out anti-misoperation control, therefore be used widely from electric operation circuit.Currently,
With motor-operating mechanism keep apart official seal manual operation in terms of, do not take effective anti-error measure, operator on duty can be by force
Using isolating switch motor structure operating handle to its any point, closing operation, do not have anti mis-closedown function, it may occur however that accidentally grasp
Make accident, directly jeopardizes the safety of the person and equipment.
Summary of the invention
The purpose of the present invention is to provide the error-proof devices being manually operated by force in a kind of anti-disconnecting switch operation, can be effective
It prevents running disconnecting switch to be manually operated by force, thoroughly solves deficiency existing for " five is anti-" system, effectively prevent from accidentally grasping
Make the generation of accident, it is ensured that the person and equipment safety.
To reach above-mentioned technical purpose, the technical solution adopted by the present invention is specific as follows:
The error-proof device being manually operated by force in a kind of anti-disconnecting switch operation, including isolator operating mechanism case, and
Anti-error control cabinet and control circuit are integrated in isolator operating mechanism case, it is characterised in that: packet in the accidentally control cabinet
Electric puzzle lock, direct current magnetic padlock, door knob travel switch and multiple unlock relays are included；The control circuit includes anti-short circuit lock
Close and status releasing circuit and five unlocking preventions and electromagnetism lock loop, two circuits are parallel with one another, and electric puzzle lock be connected on prevent it is short
It connects in locking and status releasing circuit, direct solenoid lock is linked into five unlocking preventions and electromagnetism lock loop and controls error-proof device door
Lock opening and closing.
Further, the electric puzzle lock is five anti-electric puzzle locks of anti-positive and negative short-circuit operation, including be mounted on prevent it is short
Connect the rotation electrode in box and fixed electrode, connecting terminal, the computer key being adapted to lock body；The connecting terminal passes through more
Copper conductor is extended multiple contacts mutually disconnected respectively, and insulation stroke push rod is connected between multiple contacts, and insulation stroke pushes away
Bar one end is connected on rotation electrode.
Further, the contact includes at least three, is respectively set to normally opened contact, common, normally-closed contact, public
Contact is arranged between normally opened contact and normally-closed contact altogether, and each contact is separately positioned on a copper conductor.
Multiconductor is provided separately, and the closing of multiple auxiliary contact is mounted in anti-short circuit box and is managed, and two electrodes are not
It is directly accessed in breaker or isolator operation circuit, is directly operated with realizing that anti-positive and negative are shorted five anti-electric puzzle locks.
Further, rotatable electrode bar one end is connected with rotation plectrum, and rotation plectrum is against insulation stroke push rod
End, be provided with multiple copper conductor plectrums on the insulation stroke push rod, copper conductor plectrum is separately positioned on the upper of copper conductor
Side or lower section.
Rotation plectrum drives insulation stroke lever to move up or down in the rotary course of electrode stem, while copper conductor is dialled
Piece stirs copper conductor upwardly or downwardly, and controls the contact between multiple contacts or separate.
Further, the anti-error control cabinet is installed on the support frame, and is provided with operation handle jack on the support frame.
Further, the unlock relay includes anti-short circuit locking relay, five unlocking prevention relays, electromagnetic lock unlock
Time-limit relay, anti-short circuit locking relay series connection are linked into anti-short circuit locking and status releasing circuit.
Further, the five unlocking preventions relay and electromagnetic lock unlock time-limit relay are in parallel with direct current magnetic padlock
Afterwards, it then connects and is linked into electric locking contact.
Further, it includes being connected on DC control supply that the control circuit, which further includes emergency release control loop,
The unblock button of normally-closed contact and normally opened contact and control normally-closed contact and normally opened contact switching switch, and normally opened contact connects
It is connected to direct current magnetic padlock.
The beneficial effects of the present invention are: the present invention is different from the prior art, and present invention electricity puzzle lock is equipped with anti-short circuit
Locked loop, once unauthorized person is shorted the electricity puzzle lock, Permanent lockout, electric puzzle lock are cooperated computer key by Electromagnetic Solution lock loop
Spoon uses, and is placed in mechanical lock chip, and typing five-preventing system, then is unlocked in logic write-in spacing devices logical formula, breaks
Road device, grounding switch auxiliary contact are series in five unlocking preventions and Electromagnetic Solution lock loop, realize the unlock of five prevention logic electromagnetism；Five is anti-
Breaker, grounding switch auxiliary contact are sealed in unlock and electromagnetism lock loop, manual on-load can be effectively prevent to draw, close and keep apart
Band earthing knife-switch closes disconnecting switch under pass and the insecure situation of grounding switch mechanical latching.
Detailed description of the invention
Fig. 1 is the error-proof device structural schematic diagram being manually operated by force in anti-disconnecting switch operation provided by the invention；
Fig. 2 is the circuit diagram for the error-proof device being manually operated by force in anti-disconnecting switch operation provided by the invention；
Fig. 3 is the electricity coding lock construction for the error-proof device being manually operated by force in anti-disconnecting switch operation provided by the invention
Schematic diagram；
Fig. 4 is the illegal unlocking information for the error-proof device being manually operated by force in anti-disconnecting switch operation provided by the invention
Long-distance Log server schematic diagram
Fig. 5 is the speech horn principle for the error-proof device being manually operated by force in anti-disconnecting switch operation provided by the invention
Schematic diagram.
Appended drawing reference:
1- electricity puzzle lock, 2- direct current magnetic padlock, 3- door knob travel switch SQ2,4- door lock, 5- door handle, 6- operation handle
Jack, 7- fixed screw, 8- door bolt, 9- support frame, 10- valve screw, 11- DC control supply, 12- DC control supply are empty
Anti- five unlocking prevention relay KM2,16- electromagnetic lock of short circuit locking relay KM1,15- of air cock, 13- emergency release button, 14-
Unlock time-limit relay SJ1,17- auxiliary contacts of circuit breaker DL1,18- grounding switch auxiliary contact GD1,19- speech horn, 20-
Anti-error control cabinet, 21- disconnecting switch electric operation circuit, 34- electricity puzzle lock lock body, 35- normally opened contact, 36- common,
37- normally-closed contact, 38- spring leaf, 39- rotation electrode, 40- rotation plectrum, 41- insulation stroke push rod, the fixed electrode of 42-.
Specific embodiment
The present invention is described in further detail below through specific implementation examples and in conjunction with the accompanying drawings.
Shown in Fig. 1-Fig. 4, the error-proof device being manually operated by force in a kind of anti-disconnecting switch operation, including disconnecting switch behaviour
Make mechanism case, and be integrated with anti-error control cabinet 20 and control circuit in isolator operating mechanism case, it is characterised in that: is described
It include accidentally electric puzzle lock 1, direct current magnetic padlock 2, door knob travel switch 3 and multiple unlock relays in control cabinet；The control
Circuit includes anti-short circuit locking and status releasing circuit and five unlocking preventions and electromagnetism lock loop, and two circuits are parallel with one another, and electricity
Puzzle lock 1 is connected in anti-short circuit locking and status releasing circuit, and direct current magnetic padlock 2 is linked into five unlocking preventions and electromagnetism lock loop
In and control error-proof device door lock 4 opening and closing, this is that administrator is manually opened, is in emergency circumstances used.
The anti-error control cabinet 20 is mounted on support frame 9, and operation handle jack 6 is provided on support frame 9.
The unlock relay includes anti-short circuit locking relay, five unlocking prevention relays, electromagnetic lock unlock relay in limited time
Device, anti-short circuit locking relay series connection are linked into anti-short circuit locking and status releasing circuit.The five unlocking preventions relay and
Electromagnetic lock unlock time-limit relay it is in parallel with direct current magnetic padlock 2 after, then connect and be linked into electric locking contact.The control electricity
Road further includes that emergency release control loop includes the normally-closed contact being connected on DC control supply 11 and normally opened contact and control
The unblock button of normally-closed contact and normally opened contact switching switch processed, and normally opened contact is connected to direct current magnetic padlock 2.
The electricity puzzle lock 1 is five anti-electric puzzle locks of anti-positive and negative short-circuit operation, including being mounted in anti-short circuit box
Rotation electrode 39 and fixed electrode 42, connecting terminal, the computer key being adapted to lock body；The connecting terminal is led by more copper
Line is extended multiple contacts mutually disconnected respectively, and insulation stroke push rod 41 is connected between multiple contacts, and insulate stroke push rod
41 one end are connected on rotation electrode 39.
Rotation electrode 39 is placed in inside electric puzzle lock lock body 34 by rotatable electrode 39, the fixed support of bearing, can be flexible
It is rotated by 360 ° conductive, and in 39 tail end of rotatable electrode, the rotatable plectrum of installation can be arbitrarily adjusted according to angle demand
40 rotation angles, and fixed with hold-doun nut.Electric puzzle lock lock body 34 is used cooperatively with five anti-computer keys, when computer key is inserted
When entering electric puzzle lock lock body 34 and pressing unblock button, unlock operating stick while rotating clockwise 90 degree rotatable plectrum 40 also revolve
It turn 90 degrees to stir insulation stroke push rod 41 and move upwards, so that common 36 is disconnected normally-closed contact 37 and connect normally opened contact 35
To achieve the purpose that electric loop solution lock control.Fixed electrode 42 is placed in electric puzzle lock lock body by the 42 fixed supports of fixed electrode
It is non-rotatable conductive inside 34, support is imported and fixed for the Fixed latches reliable location to computer key.It unclamps
When computer key unblock button, unlock operating stick drives rotatable plectrum 40 to rotate counterclockwise 90 degree, and auxiliary contact and insulation are gone
Auto-returned under the action of spring leaf 38 of journey push rod 41 keeps original state.
The contact includes at least three, is respectively set to normally opened contact 35, common 36, normally-closed contact 37, public
Contact 36 is arranged between normally opened contact 35 and normally-closed contact 37, and each contact is separately positioned on a copper conductor.It is described can
39 bar one end of rotation electrode is connected with rotation plectrum 40, and rotation plectrum 40 is against the end of insulation stroke push rod 41, the insulation
Multiple copper conductor plectrums are provided on stroke push rod 41, copper conductor plectrum is separately positioned on the either above or below of copper conductor.
Specifically, the contact is preferably three, it is respectively set to normally opened contact 35, common 36, normally-closed contact
37, common 36 is arranged between normally opened contact 35 and normally-closed contact 37, and each contact is separately positioned on a copper conductor.
At this point, copper conductor plectrum is separately positioned on 35 lower section of normally opened contact, the top of normally-closed contact 37 and common 36.Rotate plectrum
40 in the rotary course of electrode stem drive insulation stroke lever move up or down, while copper conductor plectrum stir copper conductor to
It goes up perhaps downward and controls the contact between multiple contacts or separate.In the process, when the stroke lever that insulate moves up, band
The copper conductor plectrum of dynamic common 36 is moved up up to resisting the copper conductor of normally-closed contact 37, and moves up it, normally-closed contact 37
Common 36 cannot contact again in the process, and then moving up for normally opened contact 35 contacts series connection with common 36.Conversely,
When the stroke lever that insulate moves down, then normally-closed contact 37 is driven to connect with common 36.Multiconductor is provided separately, and will be multiple auxiliary
It helps contact closing to be mounted in anti-short circuit box to be managed.
When specifically used, according to Fig. 1, Fig. 2, electric puzzle lock 1, direct current magnetic padlock 2, door knob travel switch SQ2
(3), anti-short circuit locking relay KM1 (14), five unlocking prevention relay KM2 (15), electromagnetic lock unlock time-limit relay SJ1
(16), anti-error control cabinet 20 is mounted on support frame 9, is used in combination all loaded in anti-error control cabinet 20 by intelligent sound loudspeaker 19
Fixed screw 7 is fixed, then access five that auxiliary contacts of circuit breaker DL1 (17), grounding switch auxiliary contact GD1 (18) are connected respectively
Unlocking prevention and electromagnetism lock loop, with realize it is anti-be manually operated disconnecting switch by force or on-load, band earthing knife-switch draw manually by force, close every
Leave pass.In door knob travel switch SQ2-1 (3) series connection access disconnecting switch electric operation circuit 21, to realize electrical, manual behaviour
Make mutually locking.
Operator passes computer key by five-preventing system logic bill after date, by operation logic, by computer key when operation
It is inserted into electric puzzle lock 1, and after identifying the mechanical code-locked of electric puzzle lock 1 by computer key, presses computer key unlocking button, often
Closed contact SQ1-1 disconnects anti-short circuit locking and status releasing circuit, and normally opened contact SQ1-2 closure connects five unlocking preventions and electromagnetic lock
Circuit, five unlocking prevention relay KM2 (15) excitation actuatings, normally opened contact KM2-1 are closed self-sustaining, and 2 excitation of direct current magnetic padlock is dynamic
Automatically open anti-error 20 chamber door of control cabinet, operator can by isolator operation handle, in insertion operation handle socket 6 into
Manual point of row, closing operation.Meanwhile electromagnetic lock unlock time-limit relay SJ1 (16) excitation actuating electromagnetism unlocks timing, can set
It is 180 seconds, is not operated for a long time after unlock, and when timing time was up to 180 seconds, delay break contact SJ1-1 is automatic
Five unlocking preventions and electromagnetism lock loop are disconnected, five unlocking prevention relay KM2 (15) losss of excitation return, and self-holding contact KM2-1 is disconnected, directly
2 loss of excitation of galvanic electricity magnetic padlock returns automatically that anti-error control cabinet 20 is automatic locking to prevent long-term disposal electromagnetism unlocked state, electromagnetic lock solution
It locks time-limit relay SJ1 (16) loss of excitation and returns to reclocking.
When 20 openings of anti-error control cabinet, normally opened contact SQ2-1 disconnects disconnecting switch electric operation circuit 21 to be latched
Electric operation circuit, normally-closed contact SQ2-2 closure connect intelligent voice prompt circuit intelligent sound loudspeaker 19 and issue " operation knot
Beam please close the door！" to prompt operator to shut anti-error control cabinet 20 in time, if when operator forgets anti-error control
20, case when shutting, voice prompting will issue for a long time, and the disconnection disconnecting switch electric operation circuit of normally opened contact SQ2-1
21, operator can not carry out electric operation when subsequent operation, only shut error-proof device control chamber door, contact SQ2-1
Return just allows to carry out electric operation, and the above measure shuts error-proof device control after effectively controlling operator's end of operation in time
Chamber door processed operates so that next five prevention logic unlocks.
When unauthorized person is shorted left and right two pole due to electric puzzle lock 1 with conductor, the anti-short circuit of instantaneous trigger is latched back
Simultaneously excitation actuating, normally opened contact KM1-1 self-sustaining, normally-closed contact KM1-2 are disconnected the anti-short circuit locking relay KM1 (14) on road
Five unlocking preventions and electromagnetism lock loop forbid 2 Permanent lockout of direct current magnetic padlock that the disconnecting switch is manually operated, can be by administrative staff
It is somebody's turn to do by opening 4 flicking emergency release button 13 of door lock or could be released using the electric puzzle lock 1 of correct five unlocking preventions program unlock
Blocking.Meanwhile the sending of normally opened contact KM1-3 connection intelligent voice prompt circuit intelligent sound loudspeaker " prohibited by illegal operation
Only operate！！With the illegal unlock operator in warning scene, another normally opened contact KM1-4 is closed hard contact amount and is sent to public observing and controlling dress
It sets, by the message pre-set, " so-and-so is manually operated disconnecting switch by force！" inform Dispatchers on duty, it can in advance to illegal
Unlock operator is effectively managed.
Any component failure or in emergency circumstances in error-proof device, DC control supply 11 can be spaced apart 1DK disconnect into
Row isolation does not influence to operate, and anti-error 20 door lock 4 of control cabinet management key opening door operation can be used under administrative staff's supervision.Such as every
When from switch gap service work, anti-error control cabinet 20 can also be opened by the method behind the door, flicking emergency release button SA1
(13), normally-closed contact SA1-1 disconnects anti-short circuit locking, status releasing, five unlocking preventions, electromagnetism unlock circuit in limited time, normally opened touching
Point SA1-2 closure directly connects electromagnetism lock loop direct solenoid and locks 2 excitation actuatings, and anti-error control cabinet 20 can stay open for a long time
State, door knob travel switch SQ2 (3) normally opened contact SQ2-1 are disconnected, reliable to be latched the permission of 21, disconnecting switch electric operation circuit
Manual operation, connecting the sending of intelligent voice prompt circuit intelligent sound loudspeaker, " operation terminates, and please close the door！" to prompt operator
Or close the door in time after service personnel's work, work is debugged in easy access personnel maintenance a series of to disconnecting switch under the state
Make.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (8)
1. the error-proof device being manually operated by force in a kind of anti-disconnecting switch operation, including isolator operating mechanism case, and
Anti-error control cabinet and control circuit are integrated in isolator operating mechanism case, it is characterised in that: include in the accidentally control cabinet
There are electric puzzle lock, direct current magnetic padlock, door knob travel switch and multiple unlock relays；The control circuit includes anti-short circuit locking
And status releasing circuit and unlocking prevention and electromagnetism lock loop, two circuits are parallel with one another, and electric puzzle lock is connected on anti-shorts circuit and locks
Close and status releasing circuit in, direct solenoid lock is linked into five unlocking preventions and electromagnetism lock loop and controls error-proof device door lock and opens
It closes.
2. the error-proof device being manually operated by force in anti-disconnecting switch operation according to claim 1, it is characterised in that: institute
State electric puzzle lock be anti-positive and negative short-circuit operation five anti-electric puzzle locks, including be mounted on it is anti-short circuit box in rotation electrode and
Fixed electrode, connecting terminal, the computer key being adapted to lock body；The connecting terminal by more copper conductors extend respectively have it is more
A contact mutually disconnected, insulation stroke push rod is connected between multiple contacts, and insulation stroke push rod one end is connected to electric rotating
On extremely.
3. the error-proof device being manually operated by force in anti-disconnecting switch operation according to claim 2, it is characterised in that: institute
Contact is stated including at least three, is respectively set to normally opened contact, common, normally-closed contact, common is arranged in normally opened touching
Between point and normally-closed contact, each contact is separately positioned on a copper conductor.
4. the error-proof device being manually operated by force in anti-disconnecting switch operation according to claim 2, it is characterised in that: institute
It states rotatable electrode bar one end and is connected with rotation plectrum, rotation plectrum is against the end of insulation stroke push rod, the insulation stroke
Multiple copper conductor plectrums are provided on push rod, copper conductor plectrum is separately positioned on the either above or below of copper conductor.
5. the error-proof device being manually operated by force in anti-disconnecting switch operation according to claim 1, it is characterised in that: institute
It states anti-error control cabinet installation on the support frame, and is provided with operation handle jack on the support frame.
6. the error-proof device being manually operated by force in anti-disconnecting switch operation according to claim 1, it is characterised in that: institute
Stating unlock relay includes anti-short circuit locking relay, five unlocking prevention relays, electromagnetic lock unlock time-limit relay, and anti-short circuit closes
Lock relay series connection is linked into anti-short circuit locking and status releasing circuit.
7. the error-proof device being manually operated by force in anti-disconnecting switch operation according to claim 6, it is characterised in that: institute
State five unlocking prevention relays and electromagnetic lock unlock time-limit relay it is in parallel with direct current magnetic padlock after, then connect and be linked into electrolock
Closed contact.
8. the error-proof device being manually operated by force in anti-disconnecting switch operation according to claim 1, it is characterised in that: institute
State control circuit further include emergency release control loop include the normally-closed contact being connected on DC control supply and normally opened contact,
And the unblock button of control normally-closed contact and normally opened contact switching switch, and normally opened contact is connected to direct current magnetic padlock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910353193.1A CN110137009B (en) | 2019-04-29 | 2019-04-29 | Anti-misoperation device for preventing manual operation of isolating switch in operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910353193.1A CN110137009B (en) | 2019-04-29 | 2019-04-29 | Anti-misoperation device for preventing manual operation of isolating switch in operation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110137009A true CN110137009A (en) | 2019-08-16 |
| CN110137009B CN110137009B (en) | 2021-05-25 |
Family
ID=67575635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910353193.1A Active CN110137009B (en) | 2019-04-29 | 2019-04-29 | Anti-misoperation device for preventing manual operation of isolating switch in operation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110137009B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009064737A (en) * | 2007-09-10 | 2009-03-26 | Fuji Electric Fa Components & Systems Co Ltd | Interlock device for reversible electromagnetic contactor |
| CN101692534A (en) * | 2009-06-24 | 2010-04-07 | 张敬敏 | Blocking against misoperation, alarming and protecting device of high-voltage switch cabinet |
| CN202997704U (en) * | 2012-12-19 | 2013-06-12 | 珠海优特电力科技股份有限公司 | Distribution network terminal having anti-misoperation function |
| CN104538219A (en) * | 2014-12-04 | 2015-04-22 | 国家电网公司 | Wireless intelligent omni-sealed five-prevention electric lock |
| CN210091944U (en) * | 2019-04-29 | 2020-02-18 | 贵州电网有限责任公司 | Anti-misoperation device for preventing manual operation of isolating switch in operation |
-
2019
- 2019-04-29 CN CN201910353193.1A patent/CN110137009B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009064737A (en) * | 2007-09-10 | 2009-03-26 | Fuji Electric Fa Components & Systems Co Ltd | Interlock device for reversible electromagnetic contactor |
| CN101692534A (en) * | 2009-06-24 | 2010-04-07 | 张敬敏 | Blocking against misoperation, alarming and protecting device of high-voltage switch cabinet |
| CN202997704U (en) * | 2012-12-19 | 2013-06-12 | 珠海优特电力科技股份有限公司 | Distribution network terminal having anti-misoperation function |
| CN104538219A (en) * | 2014-12-04 | 2015-04-22 | 国家电网公司 | Wireless intelligent omni-sealed five-prevention electric lock |
| CN210091944U (en) * | 2019-04-29 | 2020-02-18 | 贵州电网有限责任公司 | Anti-misoperation device for preventing manual operation of isolating switch in operation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110137009B (en) | 2021-05-25 |
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