CN208094283U - A kind of ring main unit distribution power automation terminal of voltage-time type protection - Google Patents
A kind of ring main unit distribution power automation terminal of voltage-time type protection Download PDFInfo
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- CN208094283U CN208094283U CN201820400573.7U CN201820400573U CN208094283U CN 208094283 U CN208094283 U CN 208094283U CN 201820400573 U CN201820400573 U CN 201820400573U CN 208094283 U CN208094283 U CN 208094283U
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Abstract
The utility model discloses a kind of ring main unit distribution power automation terminals of voltage-time type protection; further include the remote signalling amount acquisition module being connect with DSP main control units, electric quantity acquisition module, locking acquisition module, timing module, clock synchronization module and divide-shut brake control module including DSP main control units；Timing module be designed with it is multiple, timing module be arranged on backbone panel switches；DSP main control units improve timing module when clock synchronization module and the larger time difference of multiple timing modules；Electric quantity acquisition module is connected with voltage transformer and current transformer, and electric quantity acquisition module is for improving voltage and current, benchmark of the timing module as acquisition time；Divide-shut brake control module is used to control the divide-shut brake relay in ring main unit.By way of detecting simultaneously, the accuracy of detection is improved, while so that more directly effectively ring main unit automatization terminal has preferably protection, more convenient to the communication of equipment between management and running for detection.
Description
Technical field
The utility model is related to ring main units, whole more particularly, to a kind of ring main unit power distribution automation of voltage-time type protection
End.
Background technology
Ring main unit is that one group of high-tension switch gear is mounted in steel sheet metal cabinet or makes assembled compartment ring network power supply list
The electrical equipment of member, core use on-load switch and fuse, with simple in structure, small, price is low, can be improved
The advantages that power supply parameter and performance and power supply safety.
For backbone panel switches more in ring main unit, management and running are linked up relatively difficult when the operation of equipment；If
The setting to necessitate for the state of each switch and the corresponding electric signal progress automatic detection of each switch is set, looped network is improved
The power supply and distribution safe class of cabinet.
Utility model content
In order to overcome the deficiencies of the prior art, the purpose of this utility model is to provide a kind of looped networks of voltage-time type protection
Cabinet distribution power automation terminal, the electric appliance in ring main unit are detected automatically, facilitate communication of the management and running to looped network cabinet equipment.
The utility model be solve its technical problem the technical solution adopted is that：
A kind of ring main unit distribution power automation terminal of voltage-time type protection, including DSP main control units, further include with
DSP main control units connection remote signalling amount acquisition module, electric quantity acquisition module, locking acquisition module, timing module, clock synchronization module and
Divide-shut brake control module；
The remote signalling amount acquisition module switches on-off state for checking in ring main unit；
The timing module is designed with multiple, and the timing module is arranged on backbone panel switches；Clock synchronization module with
The time parameter of DSP main control units conditioning timing module when the time difference of multiple timing modules is larger；
The electric quantity acquisition module is connected with voltage transformer and current transformer, and voltage transformer and current transformer are equal
It is electrically connected with backbone panel switches and contracting drop is carried out to voltage and current respectively, electric quantity acquisition module is for improving voltage
And electric current, the multiple electric quantity acquisition modules benchmark of corresponding timing module as acquisition time when working；
Locking acquisition module has detection when mechanical structure inside backbone panel switches executes block action；
The divide-shut brake control module is used to control the divide-shut brake relay in ring main unit.
Another specific implementation mode according to the present utility model, further has, and the DSP main control units are also associated with logical
Interrogate module and memory module.
Another specific implementation mode according to the present utility model, further has, and the DSP main control units are selected by power supply
It selects module and is connected with battery module and power conversion module；Battery module and power conversion module are used to provide DSP master control lists
The working power of member.
Another specific implementation mode according to the present utility model, further has, the power conversion module include according to
Transformer circuit, rectification circuit and the filter circuit of secondary connection, filter circuit connect DSP main control units.
Another specific implementation mode according to the present utility model, further has, and the DSP main control units are connected with humidity
Sensor, humidity sensor are arranged in ring main unit.
Another specific implementation mode according to the present utility model, further has, and the DSP main control units are connected with smog
Sensor, smoke sensor device are arranged in ring main unit.
A kind of ring main unit distribution power automation terminal for voltage-time type protection that the utility model uses, has beneficial below
Effect：By way of detection simultaneously, the accuracy of detection is improved, while to detect more directly effectively, ring main unit is certainly
Dynamicization terminal has preferably protection, more convenient to the communication of equipment between management and running.
Description of the drawings
Fig. 1 is the schematic block circuit diagram of the utility model.
Specific implementation mode
Specific embodiment of the present utility model is described in further detail below in conjunction with attached drawing.
As shown in Figure 1, a kind of ring main unit distribution power automation terminal of voltage-time type protection, including DSP main control units 1,
Further include the remote signalling amount acquisition module 2 being connect with DSP main control units 1, electric quantity acquisition module 3, locking acquisition module 4, timing
Module 5, clock synchronization module 6 and divide-shut brake control module 7.
Remote signalling amount acquisition module 2 switches on-off state for checking in ring main unit, the normally opened of ring main unit repeat circuit opens
It closes and/or normally closed switch connects remote signalling amount acquisition module 2；When the coil of relay obtains electric or dead electricity, remote signalling amount acquisition module 2
In circuit turn-on or cut-off, DSP main control units 1 have detection.Often have in setting, remote signalling amount acquisition module 2 includes optocoupler electricity
Road, the normal open switch or normally closed switch of the primary side connection relay of optocoupler, the level conversion of switching value is realized by optocoupler,
DSP main control units 1 obtain debounce signal and are analyzed.
It is both provided with clock circuit in timing module 5 and clock synchronization module 6；Timing module 5 is designed with multiple, timing module 5
It is arranged on backbone panel switches；DSP main control units 1 improve when clock synchronization module 6 and the larger time difference of multiple timing modules 5
The time parameter of timing module 5.The present embodiment further includes having shell, DSP main control units 1, state-signal collection module, electric quantity acquisition mould
Block 3, locking acquisition module 4, clock synchronization module 6 and divide-shut brake control module 7 are respectively provided in the housing；So timing module 5 and right
When module 6 be separately positioned on collection terminal and analysis end.
The both sides of backbone panel switches are both provided with timing module 5, and DSP main control units 1 compare timing module 5 and clock synchronization
Module 6 and the time difference for judging backbone panel switches both sides timing module 5；When the data time of the timing module 5 of both sides is poor
When more than preset value, DSP main control units 1 reset the timing module 5 of both sides or carry out time bias to the timing module 5 of both sides.
Timing module 5 receives the clock synchronization information from DSP main control units 1 and completes the resetting to clock circuit.
By the way that timing module 5 is arranged, electric power detection simultaneously is carried out to supply line both ends；And then it will be detected simultaneously by
Electricity is compared, and to calculate, analyze the situation of supply line, ensures the supervision promptness and safety of ring main unit power supply and distribution
Property.Timing module 5 gives each different electric power detections and provides time reference, realizes the synchro measure of each electricity.By simultaneously
The mode of detection improves the accuracy of detection, while making detection more directly effectively.
Timing module 5 is connected with button circuit board and time display screen, and timing module 5 includes time register and time
Chip DS1302, timing module 5 be additionally operable to setting and record date, can to year, the moon, week, day, when, minute, second carry out timing.
Electric quantity acquisition module 3 is connected with voltage transformer and current transformer, voltage transformer and current transformer with
Backbone panel switches are electrically connected and carry out contracting drop to voltage and current respectively.Voltage transformer passes through transformer principle sense
The voltage of supply line, current transformer is answered to be socketed supply line, detect the magnitude of current according to magnetic induction principle.Electric quantity acquisition module
3 for improving voltage and current, the benchmark of corresponding timing module 5 as acquisition time when working of multiple electric quantity acquisition modules 3.
Electric quantity acquisition module 3 by collected electric quantity signal it is conditioned after be sent to DSP main control units 1, DSP main control units 1 are received
Collection is calculated and is analyzed.
Voltage and current is carried out the processing of contracting drop by voltage transformer and current transformer respectively, completes the first of voltage and current
Step acquisition, such as the voltage of 100V and the electric current of 5A；A/D conversion circuits, electric quantity acquisition module 3 are provided in electric quantity acquisition module 3
The analog signal that voltage transformer and current transformer are acquired is converted into digital signal；DSP main control units 1 complete digital letter
Number processing, calculate various required parameters.
Electric quantity acquisition module 3 includes voltage collection circuit, and voltage collection circuit includes VA conversion circuits, Current Mutual Inductance
Circuit, voltage also primary circuit, A/D conversion circuits；VA conversion circuits include transfer resistance, and VA conversion circuits are used for voltage is mutual
The voltage detection signal of sensor is converted to current signal；It is anti-interference by the principle realization of Current Mutual Inductance circuit, ensure that voltage is mutual
The correctness of sensor signal；Electric current is reduced to by voltage, A/D conversion circuits by accurate reduction resistance in voltage also primary circuit
Obtain suitable input voltage.
Locking acquisition module 4 has detection when mechanical structure inside backbone panel switches executes block action；Failure is arranged
After removing, locking mechanical structure can carry out reset operation.Divide-shut brake control module 7 is used to control the divide-shut brake relay in ring main unit
Device, divide-shut brake control module 7 include double-triode circuit, the power supply electricity of double-triode circuit connecting dividing lock relay coil
Road, it is electric that double-triode circuit is used to control obtaining for divide-shut brake relay coil.
Five anti-interlocks in ring main unit are sequentially connected with switch, and it is dynamic that the anti-interlock of five in ring main unit executes locking
Acquisition module 4 is latched when making detection.Power dispatcher needs to carry out reset operation to being blocked mechanical structure, and it is split to release its
The locking for closing operation, enables backbone panel switches to put into operation again.
Acquisition module 4 is latched when grounding switch in ring main unit is in artificial hanging earthing conductor in earthing position or scene to be had
Detection, the mechanical Structural lock of locking of grounding switch close the combined floodgate axis of backbone panel switches.
When master relay connects power supply, then closing relay can realize that closing operation or tripping relay can realize jump
Lock operates.When closing relay closes a floodgate, tripping relay locking.When tripping relay trips, closing relay locking.Work as master control
When relay trips, remaining relay is latched.
DSP main control units 1 are also associated with communication module and memory module.Communication module connects long-range prison by GPRS network
Control main website；DSP main control units 1 are by the analysis data transmission of timing module 5 and electric quantity acquisition module 3 to memory module.
DSP main control units 1 are connected with battery module and power conversion module by power supply selecting module 8；Battery module and
Power conversion module is used to provide the working power of DSP main control units 1.Power supply selecting module 8 includes voltage comparator, electricity
Two input terminals of pressure comparator are separately connected power conversion module and the stronger output end connection DSP of reference voltage, voltage
Main control unit 1；When power conversion module work obtains the working power of DSP, voltage comparator has detection, DSP master control lists
Member 1 cuts off the working power of battery module by power supply selecting module 8.Power conversion module includes sequentially connected transformer
Circuit, rectification circuit and filter circuit, filter circuit connect DSP main control units 1.Transformer hands over high pressure for the drop voltage that contracts
Rheology changes low-voltage alternating-current into；Rectifying and wave-filtering is carried out again, becomes the direct current used for module.Power conversion module structure letter
It is single, it is of low cost.
DSP main control units 1 are directly powered using battery module, improve the flexible of ring main unit automatization terminal
Property.Voltage detecting circuit is provided between DSP main control units 1 and battery module, voltage detecting circuit is used to detect the electricity of battery
Pressure value；Voltage detecting circuit includes comparator, and battery module connects an input terminal of comparator, another input of comparator
End is provided with reference level, and DSP main control units 1 connect the output end of comparator.When the voltage value of battery module is less than benchmark electricity
Usually, DSP main control units 1 have detection.DSP main control units 1 are connected with low electric alarm lamp, DSP master when battery module is low-voltage
It is bright that control unit 1 drives low electric alarm lamp to open.
DSP main control units 1 are connected with humidity sensor, and humidity sensor is arranged in ring main unit；DSP main control units 1 are also
It is connected with high humidity alarm, humidity sensor has detection, DSP main control units 1 to drive high humidity police when looped network cabinet humidity is excessively high
Report device work.DSP main control units 1 are connected with smoke sensor device, and smoke sensor device is arranged in ring main unit；DSP main control units 1 are also
It is connected with fire alarm, smoke sensor device has detection, DSP main control units 1 to drive fire when smokescope is excessively high in ring main unit
Calamity alarm works.
Above example is only to illustrate the technical solution of the utility model and is not intended to limit it, all without departing from this
Any modification of utility model spirit and scope or equivalent replacement should all cover the range in technical solutions of the utility model
It is interior.
Claims (6)
1. a kind of ring main unit distribution power automation terminal of voltage-time type protection, it is characterised in that：Including DSP main control units (1),
Further include the remote signalling amount acquisition module (2) being connect with DSP main control units (1), electric quantity acquisition module (3), locking acquisition module
(4), timing module (5), clock synchronization module (6) and divide-shut brake control module (7)；
The remote signalling amount acquisition module (2) switches on-off state for checking in ring main unit；
The timing module (5) is designed with multiple, and the timing module (5) is arranged on backbone panel switches；Clock synchronization module
(6) DSP main control units (1) improve the time parameter of timing module (5) when and the time difference of multiple timing modules (5) is larger；
The electric quantity acquisition module (3) is connected with voltage transformer and current transformer, and voltage transformer and current transformer are equal
It is electrically connected with backbone panel switches and contracting drop is carried out to voltage and current respectively, electric quantity acquisition module (3) is for improving electricity
Pressure and electric current, multiple electric quantity acquisition modules (3) benchmark of corresponding timing module (5) as acquisition time when working；
Locking acquisition module (4) has detection when mechanical structure inside backbone panel switches executes block action；The division
Lock control module (7) is used to control the divide-shut brake relay in ring main unit.
2. a kind of ring main unit distribution power automation terminal of voltage-time type protection according to claim 1, it is characterised in that：
The DSP main control units (1) are also associated with communication module and memory module.
3. a kind of ring main unit distribution power automation terminal of voltage-time type protection according to claim 1, it is characterised in that：
The DSP main control units (1) are connected with battery module and power conversion module by power supply selecting module (8)；Battery module and
Power conversion module is used to provide the working power of DSP main control units (1).
4. a kind of ring main unit distribution power automation terminal of voltage-time type protection according to claim 3, it is characterised in that：
The power conversion module includes sequentially connected transformer circuit, rectification circuit and filter circuit, and filter circuit connects DSP
Main control unit (1).
5. a kind of ring main unit distribution power automation terminal of voltage-time type protection according to claim 1, it is characterised in that：
The DSP main control units (1) are connected with humidity sensor, and humidity sensor is arranged in ring main unit.
6. a kind of ring main unit distribution power automation terminal of voltage-time type protection according to claim 1, it is characterised in that：
The DSP main control units (1) are connected with smoke sensor device, and smoke sensor device is arranged in ring main unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820400573.7U CN208094283U (en) | 2018-03-23 | 2018-03-23 | A kind of ring main unit distribution power automation terminal of voltage-time type protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820400573.7U CN208094283U (en) | 2018-03-23 | 2018-03-23 | A kind of ring main unit distribution power automation terminal of voltage-time type protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208094283U true CN208094283U (en) | 2018-11-13 |
Family
ID=64059762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820400573.7U Expired - Fee Related CN208094283U (en) | 2018-03-23 | 2018-03-23 | A kind of ring main unit distribution power automation terminal of voltage-time type protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208094283U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110148905A (en) * | 2019-06-25 | 2019-08-20 | 国网江苏省电力有限公司常州供电分公司 | Ring network cabinet prevents closing protective device with ground |
-
2018
- 2018-03-23 CN CN201820400573.7U patent/CN208094283U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110148905A (en) * | 2019-06-25 | 2019-08-20 | 国网江苏省电力有限公司常州供电分公司 | Ring network cabinet prevents closing protective device with ground |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181113 |