CN107069719A - A kind of ring network power supply anti-misoperation system - Google Patents
A kind of ring network power supply anti-misoperation system Download PDFInfo
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- CN107069719A CN107069719A CN201710346859.1A CN201710346859A CN107069719A CN 107069719 A CN107069719 A CN 107069719A CN 201710346859 A CN201710346859 A CN 201710346859A CN 107069719 A CN107069719 A CN 107069719A
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- 238000012795 verification Methods 0.000 claims abstract description 40
- 238000001514 detection method Methods 0.000 claims abstract description 23
- 238000003780 insertion Methods 0.000 claims abstract description 12
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- 230000007246 mechanism Effects 0.000 claims description 21
- 230000005611 electricity Effects 0.000 claims description 4
- 238000000151 deposition Methods 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 abstract description 22
- 238000011900 installation process Methods 0.000 abstract description 3
- 230000000903 blocking effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000006399 behavior Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
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- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- 238000010977 unit operation Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/008—Circuit arrangements for ac mains or ac distribution networks involving trading of energy or energy transmission rights
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/20—Bus-bar or other wiring layouts, e.g. in cubicles, in switchyards
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The present invention relates to electric power electric technical field, more particularly to a kind of ring network power supply anti-misoperation system.The ring network power supply anti-misoperation system includes state detection circuit, authorizes interface, electronics electrical verification key, solution lock interface, electric locking terminal；Installment state detects circuit on the earthed switch of subordinate's ring-main unit cabinet incoming line cabinet, and electronics electrical verification key is with authorizing Interference fit, when insertion authorizes interface to obtain earthed switch folding condition information；Electric locking terminal is connected with the on-load switch of higher level's ring-main unit cabinet incoming line cabinet, after the unlocking signal of electronics electrical verification key is obtained, and just opens on-load switch, carries out power transmission；So by the ring network power supply anti-misoperation system of the present invention, the problem of different ring main unit power transmission earthed switches do not have separating brake is solved, it is to avoid maloperation of multiple ring main units in looped network transmission process；Installation process is convenient and swift without having a power failure；The effective guarantee personal safety and the safe operation of equipment of operating personnel.
Description
Technical field
The present invention relates to electric power electric technical field, more particularly to a kind of ring network power supply anti-misoperation system.
Background technology
At present, ring main unit is mainly by the component units cabinet such as incoming line cabinet and outgoing line cabinet, and every group of unit cabinet includes one or one
Above incoming line cabinet, multiple unit cabinets constitute ring network power supply system, structural representation such as Fig. 1 institutes of ring network power supply by the connection of its incoming line cabinet
Show.Wherein, A units are higher level's ring-main unit cabinet, including cabinet 1, cabinet 2, cabinet 3 and cabinet 4, wherein cabinet 2 are the incoming line cabinet of A units；B is mono-
Member is subordinate's ring-main unit cabinet, including cabinet 1, cabinet 2, cabinet 3 and cabinet 4, wherein cabinet 1 are unit B incoming line cabinet；Subordinate's ring-main unit cabinet enters
The earthed switch of line cabinet is G1-1, and the on-load switch (or being breaker) of higher level's ring-main unit cabinet incoming line cabinet is K2.
The operating mechanism of ring-main unit cabinet, which is said good-bye, to be moved and manual+electronic two kinds of modes, usually, at on-load switch handle hole
Blocking device is installed, on-load switch can also pass through electric operating control.On-load switch or open circuit in this unit interval of ring main unit
There is mechanical interlocked control between device and earthing, can realize that forced blocking is realized in following two kind five anti-requirement：
1st, on-load switch or breaker when knife closes a floodgate can be grounded and be unable to power transmission combined floodgate；
2nd, it can realize that earthed switch can not close a floodgate when on-load switch or breaker closing.
By forced blocking, the short circuit grounding failure of power transmission maloperation can be effectively prevented.
In ring main unit operation, according to the signal map analysis to more than, when K2 (on-load switch) power transmission of A units, B is mono-
1 spacing ground switch G1-1 of member must be gate-dividing state, otherwise will result in ground connection and short trouble.
But in the prior art, different units cabinet is not present due to being that independent unit cabinet is set between different units cabinet
The control of mechanical interlocking, the problem of operating process easily causes powered splice grafting earthing knife-switch by mistake, i.e. the non-separating brake of subordinate's earthing, on
The problem of level misdelivery electricity.
The content of the invention
(1) technical problem to be solved
The technical problem to be solved in the present invention is to provide a kind of ring network power supply anti-misoperation system, to solve multiple ring main units
In ring network power supply, easy maloperation, the personal safety to operating personnel and the safe operation of equipment easily cause the problem of prestige does harm to.
(2) technical scheme
In order to solve the above technical problems, the ring network power supply anti-misoperation system that the present invention is provided, including state detection circuit,
Authorize interface, electronics electrical verification key, solution lock interface, electric locking terminal；The state detection circuit is arranged on subordinate's looped network list
On the earthed switch of first cabinet incoming line cabinet, to detect the folding condition of the earthed switch；The mandate interface is examined with the state
Slowdown monitoring circuit is connected, the electronics electrical verification key and the mandate Interference fit, when insertion authorizes interface to obtain the ground connection
Switch folding condition information；The electric locking terminal is connected with the on-load switch of higher level's ring-main unit cabinet incoming line cabinet, to control
The folding of the on-load switch；It is described solution lock interface be connected with the electric locking terminal, the electronics electrical verification key with it is described
Interference fit is unlocked, is believed in insertion solution lock interface with the folding condition that the earthed switch is inputted to the electric locking terminal
Breath.
Wherein, the state detection circuit is connected with the auxiliary contact of the earthed switch.
Wherein, the electronics electrical verification key include memory module and be sequentially connected power module, key controller module and
Electrical verification joint, electrical verification joint is engaged with the mandate interface；The memory module is connected with the key controller module, to deposit
Store up the folding condition information of earthed switch.
Wherein, the electronics electrical verification key also includes display module and alarm modules, the display module and the key
Control module is connected, to show the folding condition information of earthed switch；The alarm modules are connected with the key controller module,
Electrical verification joint insertion solution latching connector and on-load switch be not turned on when send a warning.
Wherein, the electric locking terminal is electric padlock locking terminal, and the solution lock interface is located at electric padlock locking
In terminal；The electric padlock locking terminal is arranged on the handle hole of the on-load switch.
Wherein, the electric locking terminal is that anti-error electric operating controls circuit, the anti-error electric operating control circuit
It is arranged on the main inlet wire of motor-operating mechanism, the anti-error electric operating control circuit is connected with the solution lock interface.
Wherein, the anti-error electric operating control circuit includes the first relay, the second relay, the first node and second
Node；First node is connected with the motor-operating mechanism, and the power input of the second node and the motor-operating mechanism connects
Connect；First relay is connected between the first node and the second node, and the second relay is connected to the first node and second
Between node.
Wherein, higher level's ring-main unit cabinet incoming line cabinet is connected between the anti-error electric operating control circuit and main incoming power
Earthed switch auxiliary contact.
Wherein, the solution lock interface is connected with second relay.
Wherein, the state detection circuit, mandate interface, solution lock interface and anti-error electric operating control circuit are integrated
Change and set.
(3) beneficial effect
The above-mentioned technical proposal of the present invention has the following advantages that：
Due to installing a state detection circuit on the earthed switch of subordinate's ring-main unit cabinet incoming line cabinet, when earthed switch is closed
During lock, state detection circuit output block signal, when grounding switch tripping, state detection circuit exports unlocking signal；Electronics is tested
Electrical key is with authorizing Interference fit, when insertion authorizes interface to obtain earthed switch folding condition information；Electric locking terminal
It is connected with the on-load switch of higher level's ring-main unit cabinet incoming line cabinet, after the unlocking signal of electronics electrical verification key is obtained, just opens negative
Lotus switchs, and carries out power transmission；So by the ring network power supply anti-misoperation system of the present invention, different ring main unit power transmission ground connection are solved
Not the problem of switch does not have separating brake；Solve the problem of single looped network cabinet wire misses splice grafting earthing knife-switch, it is to avoid multiple ring main units are in looped network
Maloperation in transmission process；Installation process is convenient and swift without having a power failure；The effective guarantee personal safety of operating personnel and set
Standby safe operation.
Brief description of the drawings
Fig. 1 is the structural representation of ring network power supply in the prior art.
Fig. 2 is the control structure schematic diagram of ring network power supply anti-misoperation system of the present invention；
The schematic diagram that Fig. 3 coordinates for the shell mechanism of ring network power supply anti-misoperation system of the present invention with electronics electrical verification key；
Fig. 4 is the unlocking manner schematic diagram of electronic unblock and manual unlocking in ring network power supply anti-misoperation system of the present invention；
Fig. 5 is the control principle signal of anti-error electric operating control circuit in ring network power supply anti-misoperation system of the present invention
Figure.
In figure：1st, anti-error electric operating control circuit；2nd, the first relay；3rd, the second relay；4th, motor-operating mechanism；
5th, earthed switch auxiliary contact；6th, lock interface is solved；7th, interface is authorized；8th, electronics electrical verification key；9th, housing；10th, the first node；
11st, the second node.
Embodiment
With reference to the accompanying drawings and examples, the embodiment to the present invention is described in further detail.Implement below
Example is used to illustrate the present invention, but is not limited to the scope of the present invention.
In description of the invention, it is to be understood that the term " orientation of the instruction such as " center ", " top ", " bottom " " interior ", " outer "
Or position relationship is, based on orientation shown in the drawings or position relationship, to be for only for ease of the description present invention and simplify description, and
It is not instruction or implies that signified device or element there must be specific orientation, with specific azimuth configuration and operation, therefore
It is not considered as limiting the invention.In addition, term " first ", " second " are only used for describing purpose, and it is not intended that referring to
Show or imply relative importance.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
As shown in Figure 1, Figure 2 and Figure 3, ring network power supply anti-misoperation system provided in an embodiment of the present invention includes state-detection
Circuit, mandate interface 7, electronics electrical verification key 8, solution lock interface 6, electric locking terminal；State detection circuit is arranged on subordinate's ring
On the earthed switch G1-1 of net unit cabinet (being specially unit B) incoming line cabinet (cabinet 1), to detect earthed switch G1-1 folding shape
State；Interface 7 is authorized to be connected with state detection circuit, electronics electrical verification key 8 is with authorizing interface 7 to coordinate, when insertion authorizes interface 7
To obtain earthed switch folding condition information；Electric locking terminal and higher level's ring-main unit cabinet (being specially A units) incoming line cabinet (cabinet
2) on-load switch K2 is connected, to control on-load switch K2 folding；Solution lock interface 6 is connected with electric locking terminal, and electronics is tested
Electrical key 8 coordinates with solution lock interface 6, the folding shape in insertion solution lock interface 6 to be switched to electric locking terminal input grounding
State information.
In above-described embodiment, one state detection circuit is installed in the earthed switch G1-1 of unit B, as earthed switch G1-1
During combined floodgate, state detection circuit output block signal, when earthed switch G1-1 separating brakes, state detection circuit exports unlocking signal；
Electronics electrical verification key 8 is with authorizing interface 7 to coordinate, when insertion authorizes interface 7 to obtain earthed switch folding condition information；Electronics
Locking terminal is connected with the on-load switch K2 of higher level's ring-main unit cabinet (being specially A units) incoming line cabinet (cabinet 2), is tested obtaining electronics
After the unlocking signal of Electrical key 8, on-load switch K2 is just opened, power transmission is carried out；That is, necessary when wanting power transmission on-load switch K2 to close a floodgate
It could be operated with the electrical verification of electronics electrical verification key 8, the unlocking signal got is exactly that unit B earthed switch G1-1 separating brakes are not grounded,
Power transmission operation can be carried out.
Subordinate is needed to authorize while to subordinate's power transmission in the ring network power supply anti-misoperation system of the present invention, this mode
Solve the problem of different ring main unit power transmission earthed switches do not have separating brake；Solve single looped network cabinet wire and miss asking for splice grafting earthing knife-switch
Topic, it is to avoid maloperation of multiple ring main units in looped network transmission process；Installation process is convenient and swift without having a power failure；Effective guarantee
The personal safety and the safe operation of equipment of operating personnel.
Specifically, state detection circuit is connected with earthed switch G1-1 auxiliary contact；The state of detection circuit takes ground connection
Auxiliary contact is switched, when earthed switch closes a floodgate, state detection circuit output block signal, when grounding switch tripping, state is examined
Slowdown monitoring circuit exports unlocking signal.
Specifically, electronics electrical verification key 8 includes memory module and the power module being sequentially connected, key controller module and tested
Electric connection, electrical verification joint is with authorizing interface 7 to be engaged, in order to which key controller module obtains the folding condition letter of earthed switch
Breath；Memory module is connected with key controller module, to store the folding condition information of earthed switch.
Specifically, electronics electrical verification key 8 also includes display module and alarm modules, and display module connects with key controller module
Connect, to show the folding condition information of earthed switch, specifically, display module is two display lamps, red light and green light, green light
When show to have got unlocking signal, block signal is represented during when red；Alarm modules are connected with key controller module, are connect in electrical verification
Head insertion solution latching connector and on-load switch sends a warning when being not turned on, show that present system has failure, it is necessary to examine
Repair.
Electric locking terminal, which is unlocked, in the present invention two kinds of forms, and one kind is manual mode, and one kind is electric model.
Specifically, electric padlock locking terminal is installed at the on-load switch K2 handle holes of A unit cabinets 2, electric locking is whole
Hold as electric padlock locking terminal, solution lock interface 6 is located in electric padlock locking terminal；Electronics electrical verification key 8 gets unlocking letter
After number, insert in the keyhole (solution lock interface 6) of electric padlock locking terminal, electric padlock is opened, so as to could open load
Close K2 and carry out combined floodgate power transmission groove；It is exactly that unit B cabinet earthed switch G1-1 is not grounded to get unlocking signal, can carry out power transmission behaviour
Make.
Another prevents that electric operating misdelivery is electrically operated with regard to this, and electric locking terminal is that anti-error electric operating controls circuit
1, anti-error electric operating control circuit 1 is arranged on the main inlet wire of motor-operating mechanism 4, anti-error electric operating control circuit 1 with
Solution lock interface 6 is connected.Electronics electrical verification key 8 inserts solution lock interface 6 herein, and anti-error electric operating control circuit 1, which is obtained, unlocks
After signal, the main inlet wire of motor-operating mechanism 4 is just turned on power supply, motor-operating mechanism 4 and then Electronic control on-load switch K2,
On-load switch K2, which closes a floodgate, carries out power transmission, wherein, connect A unit cabinets between anti-error electric operating control circuit 1 and main incoming power
Earthed switch G2 earthed switch auxiliary contact 5 because being required according to anti-misoperation, auxiliary contact folding herein with it is corresponding
The folding logic of motor-operating mechanism is consistent.Electric operating can carry out remote operation and local operation, electrically operated
Principle is actually to be found in A unit cabinets 2 into electrically operated motor-operating mechanism 4, and the master of motor-operating mechanism 4 is entered
Line is got up with the anti-error electric operating control control of circuit 1.
Specifically, anti-error electric operating control circuit 1 includes the first relay 2, the second relay 3, the and of the first node 10
Second node 11；First node 10 is connected with motor-operating mechanism 4, the power input of the second node 11 and motor-operating mechanism 4
End connection；First relay 2 is connected between the first node 10 and the second node 11, and the second relay 3 is connected to the first node
10 and second between node 11；Specifically, solution lock interface 6 is connected with the second relay 3.
In above-mentioned control circuit, solution lock interface 6, which is connected to after electrical verification unlocking information, to be triggered the second relay 3 and works, second after
Electrical equipment 3 connects the first node 10 with the second node 11, and motor-operating mechanism 4 works, and controls on-load switch K2 combined floodgate power transmissions；Together
When, after the first node 10 is connected with the second node 11, the first relay 2 acquisition power supply, and the work that is triggered, in electronics electrical verification key
After spoon 8 is removed, in the case that the disconnection of the second relay 3 is stopped, the work of the constant conduction of the first relay 2 maintains electronic behaviour
Make the work of mechanism 4, power transmission state continues.
Further, it is above-mentioned to prevent the electrically operated operation principle of electric operating misdelivery from do described below：
3.1A units earthed switch (G2) is connected in series to power supply major loop, is accessed by the first relay 2 and the second relay 3
After motor-operating mechanism 4, earthed switch G2 separating brakes, earthed switch auxiliary contact 5 are turned on；Auxiliary contact after earthed switch G2 closes a floodgate
Disconnect, major loop is stopped power supply；When now operating the on-load switch of A unit cabinets 2 combined floodgate, controlled by mechanical interlocking, it is necessary to first
By earthed switch G2 separating brakes, major loop ground auxiliary contact are begun to turn on after separating brake, by being got after the electrical verification of electronics electrical verification key 8
After unlocking instruction, electronics electrical verification key 8 and electrical verification interface (solution lock interface 6) control circuit communication drive the second relay 3
(KA2) turn on, after the conducting of the second relay 3 (KA2), the first relay 2 (KA1) obtains power supply and starts to be held on, now electric
Pneumatic operating mechanism 4 obtains power supply, and electronics electrical verification key 8 removes completion combined floodgate power transmission.
A distant place and local operation are directly carried out during the 3.2 electronic separating brake of needs to complete, after power failure, and on-load switch, which is in, to be divided
Lock state, can close a floodgate earthed switch G2, carry out inspection operation flow, be now grounded auxiliary contact and be in open-circuit condition, inspection
The step of rear power transmission operation need to repeat 3.1 is repaiied.
Preferably, as shown in figure 3, state detection circuit, mandate interface 7, solution lock interface 6 and anti-error electric operating control electricity
Road 1 is integrated to be set, to be arranged on housing 9；So that integrated level of the present invention is high, be easy to carry operation.
It the above is only the preferred embodiment of the present invention, it is noted that come for those skilled in the art
Say, without departing from the technical principles of the invention, some improvement and modification can also be made, these improvement and modification also should
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of ring network power supply anti-misoperation system, it is characterised in that including state detection circuit, authorize interface, electronics electrical verification
Key, solution lock interface, electric locking terminal；The ground connection that the state detection circuit is arranged on subordinate's ring-main unit cabinet incoming line cabinet is opened
Shut, to detect the folding condition of the earthed switch；The mandate interface is connected with the state detection circuit, the electronics
Electrical verification key and the mandate Interference fit, when insertion authorizes interface to obtain the earthed switch folding condition information；Institute
The on-load switch that electric locking terminal is stated with higher level's ring-main unit cabinet incoming line cabinet is connected, to control the folding of the on-load switch；
The solution lock interface is connected with the electric locking terminal, the electronics electrical verification key and the unblock Interference fit, in insertion
To input the folding condition information of the earthed switch to the electric locking terminal when solving lock interface.
2. ring network power supply anti-misoperation system as claimed in claim 1, it is characterised in that the state detection circuit with it is described
The auxiliary contact connection of earthed switch.
3. ring network power supply anti-misoperation system as claimed in claim 1, it is characterised in that the electronics electrical verification key includes depositing
Storage module and power module, key controller module and the electrical verification joint being sequentially connected, electrical verification joint match with the mandate interface
Close；The memory module is connected with the key controller module, to store the folding condition information of earthed switch.
4. ring network power supply anti-misoperation system as claimed in claim 3, it is characterised in that：The electronics electrical verification key also includes
Display module and alarm modules, the display module are connected with the key controller module, to show the folding shape of earthed switch
State information；The alarm modules are connected with the key controller module, and in electrical verification joint insertion solution latching connector, on-load switch does not have
Sent a warning when having opening.
5. ring network power supply anti-misoperation system as claimed in claim 1, it is characterised in that：The electric locking terminal is electronics
Padlock locking terminal, the solution lock interface is located in electric padlock locking terminal；The electric padlock locking terminal is arranged on institute
State on the handle hole of on-load switch.
6. ring network power supply anti-misoperation system as claimed in claim 1, it is characterised in that：The electric locking terminal is anti-error
Electric operating controls circuit, and the anti-error electric operating control circuit is arranged on the main inlet wire of motor-operating mechanism, described anti-
Electric operating control circuit is connected with the solution lock interface by mistake.
7. ring network power supply anti-misoperation system as claimed in claim 6, it is characterised in that：The anti-error electric operating control electricity
Road includes the first relay, the second relay, the first node and the second node；First node connects with the motor-operating mechanism
Connect, the second node is connected with the power input of the motor-operating mechanism；First relay be connected to the first node and
Between second node, the second relay is connected between the first node and the second node.
8. ring network power supply anti-misoperation system as claimed in claim 7, it is characterised in that：The anti-error electric operating control electricity
Higher level's ring-main unit cabinet incoming line cabinet earthed switch auxiliary contact are connected between Lu Yuzhu incoming powers.
9. ring network power supply anti-misoperation system as claimed in claim 7, it is characterised in that：The solution lock interface and described second
Relay is connected.
10. the ring network power supply anti-misoperation system as described in claim any one of 1-9, it is characterised in that：The state-detection
Circuit, mandate interface, solution lock interface and the integrated setting of anti-error electric operating control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710346859.1A CN107069719B (en) | 2017-05-16 | 2017-05-16 | Looped network power supply misoperation prevention system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710346859.1A CN107069719B (en) | 2017-05-16 | 2017-05-16 | Looped network power supply misoperation prevention system |
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| CN107069719A true CN107069719A (en) | 2017-08-18 |
| CN107069719B CN107069719B (en) | 2024-02-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710346859.1A Active CN107069719B (en) | 2017-05-16 | 2017-05-16 | Looped network power supply misoperation prevention system |
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Cited By (1)
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| CN107621805A (en) * | 2017-09-30 | 2018-01-23 | 国网黑龙江省电力有限公司黑河供电公司 | Electric substation's uniline anti-misoperation system |
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| CN107069719B (en) | 2024-02-13 |
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