CN206697921U - High-tension switch cabinet perceives the control circuit of block sytem - Google Patents
High-tension switch cabinet perceives the control circuit of block sytem Download PDFInfo
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- CN206697921U CN206697921U CN201720220506.2U CN201720220506U CN206697921U CN 206697921 U CN206697921 U CN 206697921U CN 201720220506 U CN201720220506 U CN 201720220506U CN 206697921 U CN206697921 U CN 206697921U
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- 238000012544 monitoring process Methods 0.000 claims abstract description 54
- 238000001514 detection method Methods 0.000 claims abstract description 40
- 230000002093 peripheral effect Effects 0.000 claims abstract description 8
- 230000005611 electricity Effects 0.000 claims description 14
- 238000002955 isolation Methods 0.000 claims description 13
- 230000002459 sustained effect Effects 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 4
- 238000013461 design Methods 0.000 abstract description 3
- 238000012360 testing method Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 17
- 238000004891 communication Methods 0.000 description 8
- 230000006870 function Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 4
- 239000012212 insulator Substances 0.000 description 4
- 230000008447 perception Effects 0.000 description 4
- 239000013078 crystal Substances 0.000 description 3
- 230000005284 excitation Effects 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010891 electric arc Methods 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/40—Display of information, e.g. of data or controls
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Abstract
The utility model discloses the control circuit that a kind of high-tension switch cabinet perceives block sytem, located at monitoring slave and monitoring out of peripheral devices, monitoring slave includes central control module, the voltage signal acquisition module being connected with central control module, power module, human body close to detection module, sound and light alarm module；Monitoring includes high pressure sensor, LED display unit, intelligent lock unit from peripheral devices；Monitoring slave is shown for monitoring high-tension line and bus belt power information, monitoring intelligent lock-switch state, completion LED screen, human body is close to detection, sound and light alarm.By the above-mentioned means, the utility model is capable of the powered situation of automatic detection high-tension switch cabinet, and provides phonic warning prompting, using modularization and Analog Circuit Design, detect accuracy and automaticity is high, operation cost is low, and testing result is accurately and reliably.
Description
Technical field
High-tension switch cabinet field is the utility model is related to, the control of block sytem is perceived more particularly to a kind of high-tension switch cabinet
Circuit processed.
Background technology
High-tension switch cabinet refers to be used for play break-make, control in power system generating, transmission of electricity, distribution, electric energy conversion and consumption
Or the electric product of the effect such as protection.High-tension switch cabinet is full closeding equipment, and maintainer can not observe the disconnection of power failure equipments
Point.In recent years, power system inner high voltage switch cubicle Frequent Accidents, operating personnel is primarily due to the powered position of switch cubicle
Unclear, accident of human electric shock occurs for mistakenly entering charged chamber, and immeasurable loss is brought to society, enterprise, family.Through toning
Look into statistics to find, high-tension switch cabinet accident is due to operating personnel's mistakenly entering charged chamber more, is traced it to its cause mainly：
1) operating personnel is unclear to powered position in switch cubicle
It is that suspension " operational outfit, is forbidden touching on run switch cabinet that upkeep operation, which prevents measure,！" red cloth curtain, powered
Switch cubicle is front and rear to set safe fence, and suspension " is halted, Keep Clear-High Voltage！" nameplate etc..Red cloth curtain, safe fence, nameplate etc.
Safety measure, the possibility for dropping and damaging or artificially moving be present, it is impossible to play warning function completely.
2) powered door of switch cabinet can not reliable locking
Door of switch cabinet is by five anti-lock or cabinet door fixed screw progress lockings, it is impossible to completely reliable latch switch cabinet
Cabinet door, there is artificial unlocking, mistakenly entering charged chamber.
3) switch cubicle Isolation Valve can not effective locking
Switch cubicle dividing plate valve wheelbarrow switch pull-out after reliably close, but can not effective locking, exist and artificially touch biography by mistake
Dynamic connecting rod causes the possibility that valve is opened.
" locking " function of high-tension switch cabinet be ensure power equipment and system safety operation, ensure equipment and the person peace
Entirely, the important technique measure of maloperation is prevented.Traditional switch cubicle blocking method is the mode of five anti-lock combination fixed screws, should
Following hidden danger be present in mode：
(1) can not the powered situation of automatic checkout equipment, warning to maintainer is not directly perceived eye-catching enough；
(2) in service work, shift member can turn on fixed screw without authorization for convenience of working, and open cabinet door, cause
Get an electric shock；
(3) when operating personnel opens cabinet door by force, operation maintenance personnel can not in time find and prevent the unsafe acts.
Therefore need badly and provide a kind of control circuit of new high-tension switch cabinet perception block sytem to solve the above problems.
Utility model content
Technical problem to be solved in the utility model is to provide the control electricity that a kind of high-tension switch cabinet perceives block sytem
Road, automatic detection and the powered situation of high-tension switch cabinet can be shown.
In order to solve the above technical problems, the technical scheme that the utility model uses is：A kind of high-tension switch cabinet is provided
The control circuit of block sytem is perceived, located at monitoring slave and monitoring out of peripheral devices,
Monitoring slave includes central control module, the voltage signal acquisition module being connected with central control module, power supply mould
Block, human body are close to detection module, sound and light alarm module；Monitoring from peripheral devices include high pressure sensor, LED display unit,
Intelligent lock unit；
Monitoring slave is used to monitor high-tension line and bus belt power information, monitoring intelligent lock-switch state, completes LED screen
Display, human body are close to detection, sound and light alarm.
In one preferred embodiment of the utility model, the CPU of central control module uses STM32F103RCT6, with CPU
Connected circuit includes clock circuit, addressing circuit, reset circuit.The chip is the integrated electricity of 32 embedded-microcontrollers
Road, small volume is powerful, and its ancillary equipment includes crystal oscillator, temperature sensor etc., input voltage position 3.3V.
In one preferred embodiment of the utility model, core rod type electric capacity is set in high pressure sensor, the one of core rod type electric capacity
End is connected by upper flange with high voltage bus or circuit, the other end is connected with the secondary output end of high pressure sensor, secondary output end
It is connected with voltage signal acquisition module.The high pressure sensor is poured with epoxy resin post insulator style product, can be used as isolation
The support insulator of the equipment such as switch, earthed switch, bus, outlet uses, and there is high intensity, resistance to electric arc ability by force, locally to put
The features such as electricity is small.
In one preferred embodiment of the utility model, voltage signal acquisition module is adopted in real time for gathering high pressure sensor
The powered situation of high-tension line and bus of collection, it is secondary that it includes bus high pressure sensor secondary side circuit, circuit high pressure sensor
Lateral circuit.
Further, bus high pressure sensor secondary side circuit is made up of three-phase same circuits, and it includes piezo-resistance
R68, R38, R52, current-limiting resistance R86, R51, R88, resistance R48, R50, R87, R37, R49, R70, triode Q5-Q7, two poles
Pipe D7-D9, rectification chip U14, U10, U16, photoelectrical coupler U8, U9, U15, in a wherein circuitry phase, the two of resistance R68
End is connected between rectification chip U14 pin 1 and pin 2, resistance R47 both ends be connected to U14 pin 3 with
Between pin 4, resistance R86 one end is connected with U14 pin 3, the other end is connected with triode Q5 base stage, triode Q5's
Emitter stage is connected with U14 pin 4, resistance R48 one end is connected with U8 pin 2, the other end and light emitting diode D7 just
Extremely it is connected, light emitting diode D7 negative pole is connected with triode Q5 colelctor electrode, resistance R37 one end is connected with U8 pin 3,
The other end is grounded.
In one preferred embodiment of the utility model, the circuit of intelligent lock unit include lock-switch state detection circuit,
Lock-switch control circuit, the output end of lock-switch state detection circuit export lock-switch status signal to central control module, in
Control module is entreated to export lock-switch control signal to the input of lock-switch control circuit.
Further, lock-switch state detection circuit is by bus storehouse lock-switch state detection circuit, outlet storehouse lock-switch shape
State detection circuit, switch storehouse lock-switch state detection circuit composition, in the lock-switch state detection circuit of bus storehouse, input is
L1_NC, output end LOCK1_IN, connected between input and output end by resistance R75, pass through pull-up in R75 one end
Resistance R74 is connected with VCC5V, and R76 forms RC filter circuits with electric capacity C25 and is connected with the R75 other end.
Further, lock-switch control circuit by bus storehouse lock-switch control circuit, outlet storehouse lock-switch control circuit, open
Storehouse lock-switch control circuit composition is closed, in the lock-switch control circuit of bus storehouse, including resistance R59, R60, R65, triode Q2,
Relay K1, sustained diode 14, triode Q2 base stage is connected with resistance R60, emitter stage is connected with resistance R59, colelctor electrode
It is connected with relay K1 coil, sustained diode 14 is connected in parallel on relay K1 coil both ends, K1 normally opened contact 3 and electricity
Resistance R65 is connected.
In one preferred embodiment of the utility model, power module include non-isolation type power supply, isolated supplies, it is non-every
The voltage class that release power module provides includes 12V, 5V, 3.3V, and 12V voltages are intelligent lock unit, LED display unit confession
Electricity, 5V voltages are that human body is powered close to detection module, sound and light alarm module, and 3.3V voltages are powered for central control module；Isolation
The voltage that type power module provides is 5V, is voltage signal acquisition module for power supply.
The beneficial effects of the utility model are：The utility model is capable of the powered situation of automatic detection high-tension switch cabinet, and
Phonic warning prompting is provided, using modularization and Analog Circuit Design, accuracy is detected and automaticity is high, operation cost
Low, testing result is accurately and reliably；
High-tension switch cabinet outlet storehouse and bus storehouse cabinet door are only circuit (circuit and bus) three-phase is not charged and input
Could unlock unlatching in the case of correct unlocking password, reduce the possibility of artificial unlocking, thus effectively avoid because
Mistakenly entering charged chamber and caused by personnel casualty accidentses, improve substation safety managerial skills.
Brief description of the drawings
Fig. 1 is that the utility model high-tension switch cabinet perceives the structured flowchart that closed line unifies preferred embodiment；
Fig. 2 is the structural representation of the high pressure sensor；
Fig. 3 is 5V power circuit diagrams in the non-isolation type power module；
Fig. 4 is 12V power circuit diagrams in the non-isolation type power module；
Fig. 5 is 3V power circuit diagrams in the non-isolation type power module；
Fig. 6 is 5V power circuit diagrams in the isolated supplies module；
Fig. 7 is the structure chart of CPU in the central control module；
Fig. 8 is clock circuit schematic diagram in the central control module；
Fig. 9 is addressing circuit schematic diagram in the central control module；
Figure 10 is reset circuit schematic diagram in the central control module；
Figure 11 is the circuit theory diagrams of the data memory module；
Figure 12 is the bus high pressure sensor secondary side circuit schematic diagram；
Figure 13 is the circuit high pressure sensor secondary side circuit schematic diagram；
Figure 14 is the lock-switch state detection circuit schematic diagram；
Figure 15 is the lock-switch control circuit schematic diagram；
Figure 16 is circuit theory diagrams of the human body close to detection module；
Figure 17 is the circuit theory diagrams of the communication module；
Figure 18 is the RS232 telecommunication circuits schematic diagram；
Figure 19 is the buzzer circuit schematic diagram；
Figure 20 is the circuit theory diagrams of the voice cue module.
Embodiment
Preferred embodiment of the present utility model is described in detail below in conjunction with the accompanying drawings, so that the advantages of the utility model
It can be easier to be readily appreciated by one skilled in the art with feature, it is apparent clear and definite so as to be made to the scope of protection of the utility model
Define.
Fig. 1 and Fig. 2 are referred to, the utility model embodiment includes：
A kind of high-tension switch cabinet perceives the control circuit of block sytem, located at monitoring slave and monitors from peripheral devices
It is interior, high-tension switch cabinet perceive block sytem include monitoring host computer, monitoring slave, Cloud Server, monitoring slave, Cloud Server with
Monitoring host computer is in communication with each other.
Monitoring slave includes central control module, the voltage signal acquisition module being connected with central control module, power supply mould
Block, human body are close to detection module, sound and light alarm module, data memory module, clock circuit, man-machine interface, sound and light alarm module
Including voice cue module, buzzer.Monitoring includes high pressure sensor, LED display unit, smart lock list from peripheral devices
Member.High pressure sensor is connected with voltage signal acquisition module, LED display unit, intelligent lock unit with central control module phase
Even.Monitoring host computer using communication with some monitoring slaves be connected, monitoring host computer selected by way of addressing and
Its monitoring slave to communicate.In the present embodiment, monitoring host computer is connected with a monitoring slave using 433M communications.
Power module uses 5V Switching Power Supplies, connects 220V civil powers, exports the direct current of different voltage class, respectively with institute
Central control module, intelligent lock unit, LED display unit is stated to be connected.
Monitoring host computer receives the information of monitoring slave, real-time display and the state for recording monitoring slave, while monitoring host computer
Information is uploaded to by Cloud Server by network；GPRS/3G/4G radio communications are used between monitoring host computer and Cloud Server.Cloud
Server completes storage and the service function of data.Monitor slave monitoring high-tension line and bus belt power information, monitoring intelligent lock
On off state, completion LED screen are shown, human body is communicated close to functions such as detection, sound and light alarms with monitoring host computer, on
Report slave status.Man-machine interface can realize voltage signal threshold parameter setting and smart lock unlock or locking password it is defeated
Enter.
High pressure sensor includes the bus high pressure sensor of collection busbar voltage in real time and the in real time line of collection line voltage distribution
Road high pressure sensor, bus high pressure sensor primary side are connected with bus, and secondary side output signal, which is supplied to, runs on the bus
On each monitoring high-voltage switch slave.Circuit high pressure sensor primary side is connected with outlet, and secondary side output signal is supplied to
The monitoring high-voltage switch slave.
As shown in Fig. 2 high pressure sensor is poured with epoxy resin post insulator style product, disconnecting switch can be used as, connect
The support insulators of the equipment such as ground switch, bus, outlet uses, and has high intensity, resistance to electric arc ability is strong, partial discharge quantity is small etc.
Feature.High-strength dielectric functional material is buried in high pressure sensor core rod type electric capacity C, its C one end is made through upper flange and height
Bus connection is pressed, the C other ends are connected with the secondary output end of sensor, the secondary output end of sensor and the voltage signal of monitoring slave
Acquisition module is connected and is grounded by piezo-resistance R, and the piezo-resistance shields.Each phase ground connection of high pressure sensor
With 1.5mm multiplies annealed copper wire and the wire reliable ground of insulation, monitoring slave earth terminal also must reliable ground at end.If
High pressure sensor carries high pressure, and the non-reliable ground of the earth terminal, voltage signal input will have upper kilovoltage, cause danger；
If the low-voltage of the earth terminal reliable ground, only hectovolt or so occurs, electric current is also very small, not entail dangers to people
Body safety.
Bus high pressure sensor gathers high voltage bus voltage signal in real time, when any phase reaches the threshold value of default
Afterwards, it is powered to monitor slave perception bus；Circuit high pressure sensor gathers voltage of high-voltage line signal in real time, when any phase reaches
After the threshold value of default, it is powered that monitoring slave perceives circuit.Above-mentioned threshold parameter by voltage signal acquisition circuit resistance value
Determine, it is preferred that threshold value is set as primary side specified phase voltage × (0.15-0.65).
LED display unit includes being used to show the whether powered bus storehouse LED drive module of bus and display screen, for showing
The whether powered outlet storehouse LED drive module in timberline road and display screen.After monitoring slave perception bus is powered, control bus storehouse
LED drive module, bus belt power information is shown in the LED screen of bus storehouse；After monitoring slave perception circuit is powered, outlet is controlled
Storehouse LED drive module, circuit band power information is shown in the LED screen of outlet storehouse.Set display is red to roll big captions in this example,
Such as scrolling display " A phases are powered " " B phases are powered " " C phases are powered ".
Intelligent lock unit includes the Intelligent electrical machine lock for locking bus storehouse cabinet door, the intelligence for locking outlet storehouse cabinet door
Electromechanical locks, the Intelligent electrical machine lock for latch switch storehouse cabinet door and the intelligent electric mortiser for locking wheelbarrow switch valve mechanism
Lock；
Preferably, cabinet door Intelligent electrical machine lock uses model DJS02 Intelligent electrical machine lock, has automatic inspection lock status work(
Can, switch high sensitivity, it is safe and reliable the advantages of, dead bolt length is more than 20mm, meets GA/T73-94 standards.When open by mistake lock or
Cabinet door is not switched on after unlocking, it is automatic locking in 5-8s under Intelligent electrical machine lock induced magnet and magnetic induction switch effect, simultaneously
Possesses reverse power connection protection, electric motor short circuit is protected, warning function after Hall element failure.Intelligent electrical machine lock power supply (12V, GND)
It can sense after connection and lock, unlocking can be realized by leading to 12V voltages to lock control end (L+, L-) additionally by monitoring slave.The electricity
Machine lock also carries signal feedback function, and after cabinet door is closed, the passive junction closure of cabinet door electromechanical locks (COM, NO), cabinet door should after opening
Contact is opened.The electromechanical locks have manual emergency unlocking function, can manual locking or unblock under power-down conditions.
Preferably, valve mechanism electric mortise lock uses model KT-L608 intelligent electric mortise lock, electric mortise lock power supply access failure feelings
Dead bolt is in lockhole under condition, when the power is turned on, dead bolt ejection, blocks valve mechanism, realizes locking, and only in power-off feelings
Dead bolt can just rebound under condition, realize and unlock, thus monitor slave and closed by connecting, powering off mortise lock power supply (positive pole, negative pole) realization
Lock, control of unlocking.Electric mortise lock possesses dead bolt state detecting signal output function, when locking lock, COM common ports and NC normal-closed ends
Closure, when locking unlocking, COM common ports and NC normal-closed ends disconnect, and monitoring slave realizes the monitoring of lock status.
Each modular circuit and principle in the power module and monitoring slave is detailed below：
The voltage class that the power module provides includes 12V, 5V, 3.3V, and 12V voltages are intelligent lock unit, LED is shown
Unit is powered, and 5V voltages are that human body is powered close to detection module, sound and light alarm module, and 3.3V voltages supply for central control module
Electricity.Referring to Fig. 3, input VIN5V inputs 5V power supplys, 5V is exported after resettable fuse F1 and differential concatenation diode D1
Direct current, F1 use SMD1812P200TF, play overvoltage protection, and D1, which has, carries out voltage stabilizing and pressure limiting to input voltage
Effect.Referring to Fig. 4,12V power circuits use DC boosting change-over circuit, including Boost DC supply convertor chip
U3, diode D2, inductor L1, resistance R25, R26, U3 input voltage is 5V direct currents, with drawing after resistance R25, R26 parallel connection
Pin FB is connected, and pin VIN is connected with inductor L1 one end, and the L1 other end is connected with diode D2 positive pole, D2 negative pole
It is connected with the R26 other end, D2 positive pole is also connected with U3 SW1, SW2 pin.U3 uses Boost DC supply convertor
Chip XL6007, built-in soft start, excessively stream, excess temperature, high reliability feature module, built-in power MOS, integrated level height, efficiency high,
Cost is low.Referring to Fig. 5,3.3V power circuits use voltage-stablizer AMS1117-3.3, VCC5V is inputted, exports 3.3V direct currents.
The voltage class that isolated supplies module provides is 5V, is the photoelectrical coupler power supply in voltage signal acquisition module, anti-interference
Ability is strong, and security reliability is high.Referring to Fig. 6, isolated form 5V power circuits include U12, CT3, C30, C31, C35, D10, U12
Using insulating power supply module B0505S-1WR2, possesses the isolation of 1500V voltages.CT3 is tantalum electric capacity, can filter out the ripple of power supply,
C30, C31, C35, the small capacitances for 0.1u, filter out High-frequency Interference, have decoupling effect.
Referring to Fig. 7, central control module using STM32F103RCT6 be used as CPU, chip U7 for 32 it is embedded-
The integrated circuit of microcontroller, small volume is powerful, and its ancillary equipment includes crystal oscillator, temperature sensor etc., input voltage position
3.3V.Its crystal oscillator forms clock circuit, and clock signal is provided for central control module, and with reference to Fig. 8, the clock circuit includes crystalline substance
Shake CY1, electric capacity C14, C17, and CY1 both ends connect C14, C17 respectively, and input is connected with U7 pin MAIN_XI, output end
It is connected with U7 pin MAIN_XO.CPU pin ADDR0-ADDR5 is connected with addressing circuit, referring to Fig. 9, the addressing
Circuit includes DIP device J3, resistance R10-R21, ADDR0-ADDR5 are connected to 3.3V voltages with resistance R16-R21 respectively, electricity
Resistance R10-R15 is grounded respectively.DIP device J3 uses DPL-06-V, by artificial set toggle switch select different monitoring from
Machine, each code correspond to binary zero and 1, and toggle switch pushes the right, and corresponding ADDR0-ADDR5 exports high level；Dial-up
Switch pushes the left side, and corresponding ADDR0-ADDR5 exports low level, and when toggle switch all pushes the left side, address is
000000.Simultaneously CPU be also associated with reset circuit, referring to Fig. 10, the reset circuit include be serially connected resistance R32,
Electric capacity C16, input voltage 3.3V, SR NRST.
Figure 11 is referred to, data memory module is used for the data message for storing central control module, and its circuit includes data
Storage chip U1, resistance R22-R23, resistance R22 connections U1 SDA (serial data and/or addresses) pin, resistance R23 connections U1's
SCL (serial clock) pin, U1 use AT24C256N, low in energy consumption, amount of storage is big.
Figure 12 is referred to, bus high pressure sensor secondary side circuit is made up of three-phase same circuits, LINE_1A, LINE_
1B, LINE_1C connect high pressure sensor secondary side respectively, and IN_1A, IN_1B, IN_1C connect CPU respective pins respectively.Its
Including piezo-resistance R68, R38, R52, current-limiting resistance R86, R51, R88, resistance R48, R50, R87, R37, R49, R70, three poles
Pipe Q5-Q7, diode D7-D9, rectification chip U14, U10, U16, photoelectrical coupler U8, U9, U15, the connection of each component
Relation is as shown in figure 11.In a wherein circuitry phase, resistance R68 both ends are connected to rectification chip U14 pin 1 with drawing
Between pin 2, resistance R47 both ends are connected between U14 pin 3 and pin 4, resistance R86 one end and U14 pin
3 are connected, the other end is connected with triode Q5 base stage, and triode Q5 emitter stage is connected with U14 pin 4, and the one of resistance R48
End is connected with U8 pin 2, the other end is connected with light emitting diode D7 positive pole, light emitting diode D7 negative pole and triode Q5
Colelctor electrode be connected, resistance R37 one end is connected with U8 pin 3, other end ground connection, U8 pin 1 connect 5V isolation voltages,
Pin 4 connects 3.3V voltages, and quarter-phase circuit structure is identical with the circuitry phase in addition, annexation such as Figure 12 institutes of each component
Show.Rectification chip U14, U10, U16 use MB10S, and photoelectrical coupler U8, U9, U15 use TLP281.Piezo-resistance is to high pressure
Sensor secondary side circuit plays overvoltage protection, in the wherein circuit of a phase, the voltage after rectified chip U14 rectifications
By current-limiting resistance R86 driving triode Q5 conductings, VDD5V voltages pass through photoelectrical coupler U8, resistance R48, light emitting diode
D7, triode Q5 form loop, then through photoelectrical coupler U8 isolation after output signal to CPU, in addition the circuit theory of two-phase with
Its is identical.
Similarly, as shown in figure 13, circuit high pressure sensor secondary side circuit is also made up of three-phase same circuits, LINE_2A,
LINE_2B, LINE_2C connect high pressure sensor secondary side respectively, and IN_2A, IN_2B, IN_2C connect the corresponding of CPU and drawn respectively
Pin.It include piezo-resistance R40, R55, R72, current-limiting resistance R54, R71, R91, resistance R53, R58, R90, resistance R42, R57,
R89, triode Q8-Q10, diode D11, D12, D17, rectification chip U13, U18, U20, photoelectrical coupler U11, U17,
U19, the annexation of each component are as shown in figure 13.Rectification chip U13, U18, U20 use MB10S, photoelectrical coupler U11,
U17, U19 use TLP281.Piezo-resistance plays overvoltage protection to high pressure sensor secondary side circuit, wherein a phase
In circuit, the voltage after rectified chip U13 rectifications passes through by current-limiting resistance R54 driving triode Q8 conductings, VDD5V voltages
Photoelectrical coupler U11, resistance R53, light emitting diode D11, triode Q8 form loop, then after photoelectrical coupler U11 isolation
CPU is outputed signal to, the circuit theory of two-phase is same in addition.
The circuit of intelligent lock unit includes lock-switch state detection circuit, lock-switch control circuit, lock-switch state-detection
The output end of circuit exports lock-switch status signal to CPU, and it is defeated to lock-switch control circuit that CPU exports lock-switch control signal
Enter end.It is high level when lock-switch status signal is defined as lock closing.When lock-switch control signal is defined as exporting high level,
Lock is opened.
Figure 14 is referred to, lock-switch state detection circuit is made up of three groups of same circuits, respectively bus storehouse lock-switch shape
State detection circuit (LOCK1), outlet storehouse lock-switch state detection circuit (LOCK2), switch storehouse lock-switch state detection circuit
(LOCK3).In the lock-switch state detection circuit of bus storehouse, input L1_NC, output end LOCK1_IN, input with
Connected by resistance R75 between output end, be connected in R75 one end by pull-up resistor R74 with VCC5V, R76 and electric capacity C25
RC filter circuits are formed with the R75 other end to be connected.In the lock-switch state detection circuit of outlet storehouse, input L2_NC is defeated
It is LOCK2_IN to go out end, is connected between input and output end by resistance R79, R79 one end by pull-up resistor R78 and
VCC5V is connected, and R80 forms RC filter circuits with electric capacity C27 and is connected with the R79 other end.In switch storehouse lock-switch state-detection
In circuit, input L3_NC, output end LOCK3_IN, connected between input and output end by resistance R83, in R83
One end be connected by pull-up resistor R82 with VCC5V, resistance R84 and electric capacity C28 form RC filter circuits and the R83 other end
It is connected.
Figure 15 is referred to, lock-switch control circuit is made up of three groups of same circuits, respectively bus storehouse lock-switch control electricity
Road (LOCK1), outlet storehouse lock-switch control circuit (LOCK2), switch storehouse lock-switch control circuit (LOCK3).Locked in bus storehouse
In ON-OFF control circuit, including resistance R59, R60, R65, triode Q2, relay K1, sustained diode 14, each component
Annexation is as shown in figure 14, triode Q2 base stage is connected with resistance R60, emitter stage is connected with resistance R59, colelctor electrode with after
Electrical equipment K1 coil is connected, and sustained diode 14 is connected in parallel on relay K1 coil both ends, K1 normally opened contact 3 and resistance R65
It is connected.When CPU LOCK1_OUT exports high level, triode Q2 conductings, relay K1 excitations, the closure of normally opened contact 3,4,
L1 and NO1 is closed, the electromechanical locks unlocking loop conducting (electromechanical locks L+ meets 12V) of bus storehouse cabinet door, unblock；LOCK1_OUT is exported
It is on the contrary during low level.Sustained diode 14 plays protective relay K1.In the lock-switch control circuit of outlet storehouse, including
Resistance R61, R62, R66, triode Q3, relay K2, sustained diode 15, the annexation of each component are as shown in figure 14.
When CPU LOCK2_OUT export high level when, triode Q3 conducting, relay K2 excitations, normally opened contact 3,4 close, L2 with
NO2 is closed, the electromechanical locks unlocking loop conducting (electromechanical locks L+ meets 12V) of outlet storehouse cabinet door, unblock；LOCK2_OUT exports low electricity
Usually, it is on the contrary.Sustained diode 15 plays protective relay K2.In storehouse lock-switch control circuit is switched, including resistance
R63, R64, R67, triode Q4, relay K3, diode D16, the annexation of each component are as shown in figure 14.When CPU's
When LOCK3_OUT exports high level, triode Q4 conductings, relay K3 excitations, the closure of normally opened contact 3,4, L3 and NO3 closures,
The electromechanical locks unlocking loop conducting (electromechanical locks L+ meets 12V) of bus storehouse cabinet door, unblock；When LOCK3_OUT exports low level, instead
It.Sustained diode 16 plays protective relay K3.
Refer to Figure 16, human body is XIN0 close to detection module input, output end IN0, and output end is connected to CPU.
Connected by resistance R6 between input and output end, be connected in R6 one end by pull-up resistor R3 with VCC5V, R9 and electric capacity
C7 forms RC filter circuits and is connected with the R6 other end.
Figure 17 is referred to, communication module includes 433M wireless modules M2, resistance R36, wireless antenna ANT_SMA, resistance R36
Be connected between M2 VCC pin and SET pins, wireless antenna J4 is connected with M2 ANT interfaces, M2 RXD, TXD pin with
CPU respective pins (UART3) are connected.433M wireless modules M2 frequency stability is high.The communication module realizes monitoring
Radio communication between slave and monitoring host computer.
Refer to Figure 18, RS232 telecommunication circuits are used to connect LED display, it include RS232 transceivers U2, with U2 phases
Electric capacity C1-the C4, U2 for answering pin connected use MAX3232CSE, including two-way receiver and two-way driver, pin 9-12
Be connected with CPU respective pins (UART1, UART4), pin 13,14 is connected with a LED display, pin 7,8 and another
LED display is connected.
Refer to Figure 19, buzzer circuit include resistance R34, R35, triode Q1, buzzer U6, input BEEP with
CPU is connected, and R34 is connected with Q1 base stage, and R35 one end is connected with R34 parallel connections, the other end with Q1 emitter stage, Q1 current collection
Pole is connected with U6 negative pole, and U6 positive pole is connected with VCC5V.U6 uses BUZZER_12 × 9.6, can send high-decibel alarm.
Refer to Figure 20, voice cue module includes speech chip M1, resistance R28-R30, light emitting diode D4, and M1 is adopted
With QJ008M01, pin MTXD connections resistance R29, pin MRXD connection resistance R30, pin VDD33 connection R28, pin BUSY
Connecting luminous diode D4 negative pole, D4 positive pole are connected with R28.The module is used to send voice message letter by external loudspeaker
Breath.
The utility model is capable of the powered situation of automatic detection high-tension switch cabinet, and provides phonic warning prompting, using mould
Block and Analog Circuit Design, detect accuracy and automaticity is high, and operation cost is low, and testing result is accurately and reliably；High pressure
Switch cabinet outlet storehouse and bus storehouse cabinet door are only circuit (circuit and bus) three-phase is not charged and the correct unlocking port of input
Unlatching could be unlocked in the case of order, reduces the possibility of artificial unlocking, so as to effectively avoid because of mistakenly entering charged chamber
Personnel casualty accidentses caused by and, improve substation safety managerial skills.
Embodiment of the present utility model is the foregoing is only, not thereby limits the scope of the claims of the present utility model, it is every
The equivalent structure or equivalent flow conversion made using the utility model specification and accompanying drawing content, or be directly or indirectly used in
Other related technical areas, similarly it is included in scope of patent protection of the present utility model.
Claims (9)
1. a kind of high-tension switch cabinet perceives the control circuit of block sytem, located at monitoring slave and monitoring out of peripheral devices,
Characterized in that,
Monitoring slave includes central control module, the voltage signal acquisition module being connected with central control module, power module, people
Body is close to detection module, sound and light alarm module；Monitoring includes high pressure sensor, LED display unit, smart lock from peripheral devices
Unit；
Monitoring slave is used to monitor high-tension line and bus belt power information, monitoring intelligent lock-switch state, completion LED screen show
Show, human body close to detection, sound and light alarm.
2. high-tension switch cabinet according to claim 1 perceives the control circuit of block sytem, it is characterised in that center control
The CPU of module uses STM32F103RCT6, and the circuit being connected with CPU includes clock circuit, addressing circuit, reset circuit.
3. high-tension switch cabinet according to claim 1 perceives the control circuit of block sytem, it is characterised in that high pressure senses
Set core rod type electric capacity in device, one end of core rod type electric capacity is connected by upper flange with high voltage bus or circuit, the other end and high pressure
The secondary output end of sensor is connected, and secondary output end is connected with voltage signal acquisition module.
4. the high-tension switch cabinet according to claim 1 or 3 perceives the control circuit of block sytem, it is characterised in that voltage
Signal acquisition module includes bus high pressure sensor secondary side circuit, circuit high pressure sensor secondary side circuit.
5. high-tension switch cabinet according to claim 4 perceives the control circuit of block sytem, it is characterised in that bus high pressure
Sensor secondary side circuit is made up of three-phase same circuits, it include piezo-resistance R68, R38, R52, current-limiting resistance R86, R51,
R88, resistance R48, R50, R87, R37, R49, R70, triode Q5-Q7, diode D7-D9, rectification chip U14, U10,
U16, photoelectrical coupler U8, U9, U15, in a wherein circuitry phase, resistance R68 both ends are connected to rectification chip U14's
Between pin 1 and pin 2, resistance R47 both ends are connected between U14 pin 3 and pin 4, resistance R86 one end with
U14 pin 3 is connected, the other end is connected with triode Q5 base stage, and triode Q5 emitter stage is connected with U14 pin 4, electricity
Resistance R48 one end is connected with U8 pin 2, the other end is connected with light emitting diode D7 positive pole, light emitting diode D7 negative pole
It is connected with triode Q5 colelctor electrode, resistance R37 one end is connected with U8 pin 3, other end ground connection.
6. high-tension switch cabinet according to claim 1 perceives the control circuit of block sytem, it is characterised in that smart lock list
The circuit of member includes lock-switch state detection circuit, lock-switch control circuit, the output end output of lock-switch state detection circuit
For lock-switch status signal to central control module, central control module exports lock-switch control signal to lock-switch control circuit
Input.
7. high-tension switch cabinet according to claim 6 perceives the control circuit of block sytem, it is characterised in that lock-switch shape
State detects circuit by bus storehouse lock-switch state detection circuit, outlet storehouse lock-switch state detection circuit, switch storehouse lock-switch shape
State detection circuit composition, in the lock-switch state detection circuit of bus storehouse, input L1_NC, output end LOCK1_IN are defeated
Enter and connected between end and output end by resistance R75, is connected in R75 one end by pull-up resistor R74 with VCC5V, R76 and electricity
Hold C25 composition RC filter circuits with the R75 other end to be connected.
8. high-tension switch cabinet according to claim 6 perceives the control circuit of block sytem, it is characterised in that lock-switch control
Circuit processed is made up of bus storehouse lock-switch control circuit, outlet storehouse lock-switch control circuit, switch storehouse lock-switch control circuit,
In the lock-switch control circuit of bus storehouse, including resistance R59, R60, R65, triode Q2, relay K1, sustained diode 14, three
Pole pipe Q2 base stage is connected with resistance R60, emitter stage is connected with resistance R59, colelctor electrode is connected with relay K1 coil, afterflow
Diode D14 is connected in parallel on relay K1 coil both ends, and K1 normally opened contact 3 is connected with resistance R65.
9. high-tension switch cabinet according to claim 1 perceives the control circuit of block sytem, it is characterised in that power module
Including non-isolation type power supply, isolated supplies, the voltage class that non-isolation type power module provides includes 12V, 5V, 3.3V, 12V
Voltage is intelligent lock unit, LED display unit power supply, and 5V voltages are that human body is powered close to detection module, sound and light alarm module,
3.3V voltages are powered for central control module；The voltage that isolated supplies module provides is 5V, is supplied for voltage signal acquisition module
Electricity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720220506.2U CN206697921U (en) | 2017-03-08 | 2017-03-08 | High-tension switch cabinet perceives the control circuit of block sytem |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720220506.2U CN206697921U (en) | 2017-03-08 | 2017-03-08 | High-tension switch cabinet perceives the control circuit of block sytem |
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| CN206697921U true CN206697921U (en) | 2017-12-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106711962A (en) * | 2017-03-08 | 2017-05-24 | 国网安徽省电力公司淮南供电公司 | Control circuit for sensing lock system of high-voltage switch cabinet |
-
2017
- 2017-03-08 CN CN201720220506.2U patent/CN206697921U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106711962A (en) * | 2017-03-08 | 2017-05-24 | 国网安徽省电力公司淮南供电公司 | Control circuit for sensing lock system of high-voltage switch cabinet |
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