CN110531220A - Leak electricity information feedback alarm device in platform area - Google Patents
Leak electricity information feedback alarm device in platform area Download PDFInfo
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- CN110531220A CN110531220A CN201910916577.XA CN201910916577A CN110531220A CN 110531220 A CN110531220 A CN 110531220A CN 201910916577 A CN201910916577 A CN 201910916577A CN 110531220 A CN110531220 A CN 110531220A
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- 230000005611 electricity Effects 0.000 title claims description 21
- 238000012545 processing Methods 0.000 claims abstract description 37
- 230000002159 abnormal effect Effects 0.000 claims abstract description 17
- 238000004891 communication Methods 0.000 claims abstract description 16
- 238000006243 chemical reaction Methods 0.000 claims abstract description 3
- 238000001514 detection method Methods 0.000 claims description 15
- 230000001131 transforming effect Effects 0.000 claims description 12
- 230000009467 reduction Effects 0.000 claims description 5
- 238000010224 classification analysis Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 abstract description 3
- 238000005070 sampling Methods 0.000 description 18
- 238000000034 method Methods 0.000 description 6
- 230000006837 decompression Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 230000001012 protector Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/16533—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application
- G01R19/16538—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application in AC or DC supplies
- G01R19/16547—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application in AC or DC supplies voltage or current in AC supplies
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/16—Measuring asymmetry of polyphase networks
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/086—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution networks, i.e. with interconnected conductors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/088—Aspects of digital computing
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mathematical Physics (AREA)
- Theoretical Computer Science (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention discloses platform area electric leakage information feedback alarm devices, alarm includes MCU Main Processing Unit, multichannel analog-digital converter, platform area multichannel data sample circuit, communication module, MCU Main Processing Unit passes through multichannel analog-digital converter connected unit area multichannel data sample circuit, platform area multichannel data sample circuit is used to be sent to multichannel analog-digital converter from the acquisition abnormity energy data of distribution transformer platform area, the abnormal energy data of acquisition is sent to MCU Main Processing Unit by multichannel analog-digital converter after analog-to-digital conversion, abnormal energy data is sent to terminal device by communication module by MCU Main Processing Unit.The present invention passes through the acquisition and monitoring to agriculture low voltage power distribution network progress all data, realize that the acquisition for rural power grids operating parameter electric current, voltage, residual current data monitors, simultaneously using communication module by data it is real-time on be transmitted to mobile phone terminal or computer end etc., facilitate staff can be in real time into obtaining monitoring information, the operating condition for grasping power grid at any time, can be handled in time emergency event.
Description
Technical field
The present invention relates to platform area technical field more particularly to platform area electric leakage information feedback alarm devices.
Background technique
For the promise for strictly fulfiling Guo Wang company electric service, meet the power demand of client, effectively solves leakage and protect tripping
The problem of, prevent present in current rural power management frequently power failure, aging circuit, hidden fault problem, solves the complaint of user
Problem, further promotion rural power grids produce O&M, emergency first-aid repair working efficiency, shorten power off time and improve good service level.
Summary of the invention
The present invention is directed to the one or more of above-mentioned existing problem, proposes platform area electric leakage information feedback alarm device.
According to an aspect of the present invention, platform area electric leakage information feedback alarm device is provided, the alarm is mounted on distribution
On the low-pressure line-outgoing of platform area distribution transformer, there is 485 communication interfaces, the low pressure for three-phase and four-line neutral-point solid ground
Power grid, the alarm include MCU Main Processing Unit, multichannel analog-digital converter, platform area multichannel data sample circuit, communication module,
The MCU Main Processing Unit is adopted by multichannel analog-digital converter connected unit area multichannel data sample circuit, described area's multichannel data
Sample circuit is used to be sent to the multichannel analog-digital converter, the multichannel modulus from the acquisition energy data of distribution transformer platform area
The energy data of acquisition is sent to the MCU Main Processing Unit by converter after analog-to-digital conversion, and the MCU Main Processing Unit will be adopted
The energy data of collection calculate analysis and sort out counting abnormal energy data and distribution network failure reason, the MCU master
It controls unit and abnormal energy data and distribution network failure reason is sent to by terminal device by communication module.
In some embodiments, the MCU Main Processing Unit includes data statistic analysis module, information alert module, institute
State data statistic analysis module by the platform area collected energy data of multichannel data sample circuit is carried out sort out statistics and based on
Reason is analysed in point counting, and sends information alert mould for abnormal energy data and distribution network failure reason that classification analysis obtains in time
Block；The information alert module is used to the abnormal energy data received and distribution network failure reason being sent to terminal device,
Alert service is provided in time for distribution network failure.
In some embodiments, the data statistic analysis module is according to abnormal energy data by distribution network failure reason
It is divided into the alarm of distribution transforming power loss, the alarm of branch power loss, the alarm of distribution transforming phase shortage, the alarm of branch phase shortage, electric leakage information overload alarm；It is described
The alarm of distribution transforming power loss refers to the multiplex circuit whole power loss acquired in platform area；The branch power loss alarm refers to that this distinguishes road
Two-phase power loss；The distribution transforming phase shortage alarm refers to that the multiplex circuit acquired in platform area all lacks same phase；The branch phase shortage report
It is alert to refer to that this distinguishes the voltage rating that voltage acquired in road is lower than 0.7 times；The electric leakage information overload alarm refers to platform area
The residual current that branch detects is more than the early warning residual current limited.
In some embodiments, described area's multichannel data sample circuit includes three-phase current sample circuit, three-phase electricity
Sample circuit, three-phase residual current sample circuit are pressed, the three-phase current sample circuit distinguishes road three-phase electricity for acquiring this
The three-phase current in source, the three-phase voltage sample circuit be used for acquire this distinguish road three phase mains three-phase voltage, described three
Phase residual current sample circuit is used to acquire the residual current that this distinguishes road three phase mains.
In some embodiments, the multichannel analog-digital converter has multi pass acquisition channel, wherein every road acquisition channel
Including seven acquisition input terminals, 3 acquisition input terminals are used to acquire the three-phase voltage that this distinguishes road three phase mains, with this
The three-phase voltage sample circuit output end for distinguishing road is connected, and 3 acquisition input terminals distinguish road three phase mains for acquiring this
Three-phase current, the three-phase current sample circuit output end for distinguishing road with this is connected, and 1 acquisition input terminal is used to acquire
This distinguishes the residual current of road three phase mains, and the output end for distinguishing the three-phase residual current sample circuit on road with this is connected
It connects, the multichannel analog-digital converter is connected by data/address bus with the MCU Main Processing Unit.
In some embodiments, the MCU Main Processing Unit is the core cell of the alarm, including central processing unit,
Memory and input-output equipment, the MCU Main Processing Unit is for controlling the multichannel analog-digital converter starting acquisition simulation
Data are measured, the data of acquisition are read and carry out data classification and access and control external equipment normal work.
In some embodiments, the battery power supply unit includes battery charge-discharge circuit, boosting output circuit, decompression
Circuit.
It in some embodiments, further include power supply unit, said supply unit is connected with MCU Main Processing Unit, described
Power supply unit is entire alarm power supply, and said supply unit includes power grid detection circuit, is carried out by power grid detection circuit
Judgement selection battery power supply unit power supply or power grid power supply.
In some embodiments, the battery power supply unit includes battery charge-discharge circuit, boosting output circuit, decompression
Circuit.
The beneficial effects of the present invention are: the present invention by the low voltage power distribution networks such as rural power grids carry out all data acquisition and
Monitoring is realized and the acquisition of rural power grids operating parameter, especially electric current, voltage, residual current data is monitored at present, simultaneously
Using communication module by data it is real-time on be transmitted to mobile phone terminal or computer end etc., facilitate staff can be in real time into being monitored
Information grasps the operating condition of power grid at any time, emergency event can be handled in time.
Detailed description of the invention
The module diagram of the area Tu1Wei Tai electric leakage information feedback alarm device structure；
The module diagram of the structure of the area Tu2Wei Tai electric leakage one embodiment of information feedback alarm device；
The module diagram of the structure of the area Tu3Wei Tai electric leakage one embodiment of information feedback alarm device；
A phase current sampling circuit figure in the three-phase of the area Tu4Wei Tai electric leakage information feedback alarm device；
B phase current sampling circuit figure in the three-phase of the area Tu5Wei Tai electric leakage information feedback alarm device；
C phase current sampling circuit figure in the three-phase of the area Tu6Wei Tai electric leakage information feedback alarm device；
A phase voltage sample circuit figure in the three-phase of the area Tu7Wei Tai electric leakage information feedback alarm device；
B phase voltage sample circuit figure in the three-phase of the area Tu8Wei Tai electric leakage information feedback alarm device；
C phase voltage sample circuit figure in the three-phase of the area Tu9Wei Tai electric leakage information feedback alarm device；
Figure 10 is every phase electric leakage sample circuit figure in the three-phase of platform area electric leakage information feedback alarm device；
Figure 11 is the single chip circuit figure of platform area electric leakage information feedback alarm device；
Figure 12 is the start-up mode element circuit figure of the single-chip microcontroller of platform area electric leakage information feedback alarm device；
Figure 13 is the reset unit circuit diagram of the single-chip microcontroller of platform area electric leakage information feedback alarm device；
Figure 14 is the shunt capacitance element circuit figure of the single-chip microcontroller of platform area electric leakage information feedback alarm device；
Figure 15 is the downloading mouth element circuit figure of the single-chip microcontroller of platform area electric leakage information feedback alarm device；
Figure 16 is the battery charge-discharge circuit figure of platform area electric leakage information feedback alarm device；
Figure 17 is the battery booster output circuit figure of platform area electric leakage information feedback alarm device；
Figure 18 is the battery reduction voltage circuit figure of platform area electric leakage information feedback alarm device；
Figure 19 is the power grid voltage detection circuit figure of platform area electric leakage information feedback alarm device.
Specific embodiment
In order to make those skilled in the art more fully understand application scheme, below in conjunction in the embodiment of the present application
Attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is only
The embodiment of the application a part, instead of all the embodiments.Based on the embodiment in the application, ordinary skill people
Member's every other embodiment obtained without making creative work, all should belong to the model of the application protection
It encloses.
It should be noted that the description and claims of this application and term " first " in above-mentioned attached drawing, "
Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that using in this way
Data be interchangeable under appropriate circumstances, so as to embodiments herein described herein.In addition, term " includes " and " tool
Have " and their any deformation, it is intended that cover it is non-exclusive include, for example, containing a series of steps or units
Process, method, system, product or equipment those of are not necessarily limited to be clearly listed step or unit, but may include without clear
Other step or units listing to Chu or intrinsic for these process, methods, product or equipment.Term " installation " " is set
Set ", " being equipped with ", " connection ", " connected ", " socket " shall be understood in a broad sense.For example, it may be being fixedly connected, it is detachably connected, or
Monolithic construction；It can be mechanical connection, or electrical connection；It can be directly connected, or indirectly connected through an intermediary,
It or is two connections internal between device, element or component.It for those of ordinary skills, can be with
The concrete meaning of above-mentioned term in the present invention is understood as the case may be.
The technical program is explained in detail in 1-19 with reference to the accompanying drawing.
As shown in figures 1-19, platform area electric leakage information feedback alarm device is provided, alarm is mounted on power distribution station distribution transformer
On the low-pressure line-outgoing of device, there are 485 communication interfaces, for the low voltage electric network of three-phase and four-line neutral-point solid ground, alarm
Including MCU Main Processing Unit, multichannel analog-digital converter, platform area multichannel data sample circuit, communication module, MCU Main Processing Unit passes through
Multichannel analog-digital converter connected unit area multichannel data sample circuit, platform area multichannel data sample circuit are used for from distribution transformer platform
The acquisition energy data in area is sent to multichannel analog-digital converter, and multichannel analog-digital converter turns the energy data of acquisition by modulus
MCU Main Processing Unit is sent to after changing, the energy data of acquisition calculate analysis and sort out counting exception by MCU Main Processing Unit
Energy data and distribution network failure reason, MCU Main Processing Unit pass through communication module for abnormal energy data and power distribution network event
Barrier reason is sent to terminal device.Wherein, MCU Main Processing Unit uses single-chip microcontroller STM320F103, and communication module uses the whole network 4G
Communication.
In the present embodiment, MCU Main Processing Unit includes data statistic analysis module, information alert module, data statistics point
Analysis module is used to carry out sorting out statistics to the platform area collected energy data of multichannel data sample circuit and calculate analysis reason, and
Information alert module is sent by abnormal energy data and distribution network failure reason that classification analysis obtains in time；Information alert mould
Block is used to the abnormal energy data received and distribution network failure reason being sent to terminal device, mentions in time for distribution network failure
For alert service.
In the present embodiment, distribution network failure reason is divided into distribution transforming according to abnormal energy data by data statistic analysis module
Power loss alarm, the alarm of branch power loss, the alarm of distribution transforming phase shortage, the alarm of branch phase shortage, electric leakage information overload alarm；The alarm of distribution transforming power loss
Refer to the multiplex circuit whole power loss acquired in platform area；The alarm of branch power loss refers to that this distinguishes the two-phase power loss on road；Distribution transforming lacks
Mutually alarm refers to that the multiplex circuit acquired in platform area all lacks same phase；The alarm of branch phase shortage refers to that this distinguishes acquired in road
Voltage is lower than 0.7 times of voltage rating；It is more than to limit that electric leakage information overload alarm, which refers to that platform distinguishes the residual current that road detects,
Early warning residual current.
In the present embodiment, power loss refers to that the voltage of acquisition is lower than 0.7 times of voltage rating, and voltage rating 220V is limited
Early warning residual current be 100MA, it is more than 100MA that platform, which distinguishes the residual current that detects of road, it is necessary to carry out this differentiation road
Electric leakage information overload alarm.Information alert module is classified by getting abnormal energy data and distribution network failure reason
Alert event editor, the place editor for carrying out distribution network failure reason.SIM800C module, MCU master control can be used in the present embodiment
Unit uses single-chip microcontroller STM320F103, single-chip microcontroller STM320F103 to connect with SIM800C module by serial communication, is arranged
SIM800C is to send short message state, so that it may send the SMS to terminal device, complete alarm, terminal device can be mobile phone, computer
Deng.
In the present embodiment, as shown in figure 11, SWDIO, SWCLK pin of single-chip microcontroller STM320F103C8T6, single-chip microcontroller connect
It is connected to downloading mouth unit as shown in figure 15, XTAL-IN, XTALOUT pin of single-chip microcontroller are connected with starting as shown in figure 11
Crystal oscillator unit, the NRST pin of single-chip microcontroller are connected with reset key unit as shown in figure 13, BOOT1, BOOT0 pin of single-chip microcontroller
Start-up mode unit as shown in figure 12 is connected, as shown in figure 14, single-chip microcontroller is also connected with shunt capacitance unit, single-chip microcontroller connection
Shunt capacitance unit can play filter action, reduce and interfere single-chip microcontroller.Shunt capacitance unit includes four electricity composed in parallel
Appearance group C12, C13, C14, C15, a termination 3.3V power supply of C12, C13, C14, C15, other end ground connection.Wherein, such as Figure 11 institute
Show, it is the VBAT pin for connecting single-chip microcontroller that C12, which connects 3.3V power supply one end, and it is connection single-chip microcontroller that C12, which connects 3.3V power supply one end,
VBAT pin, it is the VDD_1 pin for connecting single-chip microcontroller that C13, which connects 3.3V power supply one end, and it is connection monolithic that C14, which connects 3.3V power supply one end,
The VDD_2 pin of machine, it is the VDD_3 pin for connecting single-chip microcontroller that C15, which connects 3.3V power supply one end,.
In the present embodiment, platform area multichannel data sample circuit includes being acquired the three-phase of data in each branch in platform area
Current sampling circuit, three-phase voltage sample circuit, three-phase residual current sample circuit, three-phase current sample circuit is for acquiring this
Platform distinguishes the three-phase current of road three phase mains, and three-phase voltage sample circuit is used to acquire the three-phase electricity that this distinguishes road three phase mains
Pressure, three-phase residual current sample circuit are used to acquire the residual current that this distinguishes road three phase mains.
Three-phase voltage sample circuit includes 3 road voltage sampling circuits: being respectively A phase voltage sample circuit, the sampling of B phase voltage
Circuit, C phase voltage sample circuit, wherein the A phase voltage of the input terminal connection three-phase alternating current of A phase voltage sample circuit, exports
One signal input interface of end connection multichannel analog-digital converter acquisition channel all the way；The input terminal of B phase voltage sample circuit connects
Connect the B phase voltage of three-phase alternating current, output end connects a signal input interface of multichannel analog-digital converter acquisition channel all the way；
The C phase voltage of the input terminal connection three-phase alternating current of C phase voltage sample circuit, output end connection multichannel analog-digital converter are adopted all the way
Collect a signal input interface in channel.Wherein, A phase voltage sample circuit, B phase voltage sample circuit, C phase voltage sample circuit
Circuit it is all the same.
Three-phase current sample circuit includes 3 road current sampling circuits: being respectively A phase current sampling circuit, B phase current sampling
Circuit, C phase current sampling circuit, wherein the A phase of AC three-phase passes through a current transformer, the output of current transformer
Terminate the input terminal of A phase current sampling circuit, the signal input of the output termination multichannel analog-digital converter of A phase current sampling circuit
Interface；The B phase of AC three-phase passes through a current transformer, the output termination B phase current sampling circuit of current transformer
Input terminal, the signal input interface of the output termination multichannel analog-digital converter of B phase current sampling circuit；The C phase of AC three-phase
Across a current transformer, the input terminal of the output termination C phase current sampling circuit of current transformer, C phase current sampling electricity
The signal input interface of the output termination multichannel analog-digital converter on road.In the present embodiment, A phase current sampling circuit, B phase current are adopted
Sample circuit, the circuit of C phase current sampling circuit are all the same.
In the present embodiment, the multichannel analog-digital converter has multi pass acquisition channel, wherein every road acquisition channel includes
Seven acquisition input terminals, 3 acquisition input terminals are used to acquire the three-phase voltage that this distinguishes road three phase mains, distinguish with this
The three-phase voltage sample circuit output end on road is connected, and 3 acquisition input terminals are used to acquire this distinguishes road three phase mains three
Phase current, the three-phase current sample circuit output end for distinguishing road with this are connected, and 1 acquisition input terminal is for acquiring this
The residual current for distinguishing road three phase mains, is connected to three-phase residual current sample circuit, the multichannel mould by zero sequence transformer
Number converter is connected by data/address bus with the MCU Main Processing Unit.In the present embodiment, the data/address bus used is total for SPI
Line.
In the present embodiment, the MCU Main Processing Unit is the core cell of the alarm, including central processing unit, storage
Device and input-output equipment, the MCU Main Processing Unit is for controlling the multichannel analog-digital converter starting acquisition analog quantity number
According to, read the data of acquisition and carry out data classification and access and control external equipment work normally.
It in the present embodiment, further include power supply unit, power supply unit is connected with MCU Main Processing Unit, and power supply unit is whole
A alarm power supply, said supply unit includes battery feed circuit and power grid detection circuit.Battery feed circuit includes battery
Charge-discharge circuit, boosting output circuit, reduction voltage circuit, battery feed circuit successively pass through battery charge-discharge circuit, boosting output
Circuit, reduction voltage circuit are powered to single-chip microcontroller, and cell voltage is boosted to 5V and switched over by boosting output circuit；Decompression electricity
Road is as shown in figure 18, and 5V voltage step-down to 3.3V is used for single-chip microcontroller.Power grid detection circuit is as shown in figure 19, and monolithic is electromechanical
Road is as shown in figure 11, and the POWER_UP exit of power grid detection circuit is connect with the POWER_UP of corresponding pin 19 in single-chip microcontroller,
Power grid detection circuit detects can notify processor of single chip computer immediately when no power loss, and control enable end EN boosting is defeated in time
Out, the chip in the enable end EN of the 19 power grid detection circuit of pin of POWER_UP connection single-chip microcontroller and boosting output circuit
The enable end of FP6293 is connected, and carries out detection low and high level to select battery power supply or power grid power supply, electricity as shown in figure 16
Pond charge-discharge circuit, the input terminal of battery charge-discharge circuit are the 5V voltage that the adapter that external 220v connects is converted into, battery
The end charge-discharge circuit BAT+ is connected to the corresponding end BAT+ in boosting output circuit, and boosting output circuit is as shown in figure 17, boosting
5V voltage output end in output circuit is correspondingly connected with the 5V input terminal in reduction voltage circuit, is dropped by AMS1117-3.3 chip
Pressure output 3.3V voltage, 3.3V voltage are powered for single chip circuit.
Specific process is: in the case that 1. have external power supply, the EN pin of power grid detection circuit is low level, POWER_
UP pin is high level, and POWER_UP pin is directly connected with the POWER_UP pin of single-chip microcontroller；Since EN pin is low electricity
Flat, the enable end for the output circuit that boosts at this time is invalid；The voltage of boosting output circuit is less than external 5V supply voltage；External
5V supply voltage is charged the battery by the chip TC4056 in battery charge-discharge circuit, and by D14 diode directly to electricity
Road power supply；2. in the case where power loss, the EN pin of power grid detection circuit is high level, POWER_UP pin is low level, and EN draws
Foot is high level, battery charge-discharge circuit by XB5353A discharge protection circuit, to the FP6293 in boosting output circuit into
Row power supply, the 5V voltage after being boosted are greater than the anode tap voltage of D14 diode, can be powered by D16 supply circuit.Its
In, the effects of circuit of the chip TC4056 of use can play and prevent from overshooting, current limliting, overheat protector, floating charge；The chip of use
XB5353A circuit, which plays, prevents over-discharge, the protective effects such as current limliting, overheat protector.
It in some embodiments, further include power supply unit, power supply unit is connected with MCU Main Processing Unit, power supply unit
For entire alarm power supply, power supply unit includes power grid detection circuit, carries out judgement selection battery by power grid detection circuit
Power supply unit power supply or power grid power supply.
In some embodiments, battery power supply unit includes battery charge-discharge circuit, boosting output circuit, decompression electricity
Road.
Above-described is only some embodiments of the present invention.For those of ordinary skill in the art, not
Under the premise of being detached from the invention design, various modifications and improvements can be made, these belong to protection model of the invention
It encloses.
Claims (8)
- The information feedback alarm device 1. area leaks electricity, which is characterized in that the alarm is mounted on power distribution station distribution transformer On low-pressure line-outgoing, there are 485 communication interfaces, for the low voltage electric network of three-phase and four-line neutral-point solid ground, the alarm Including MCU Main Processing Unit, multichannel analog-digital converter, platform area multichannel data sample circuit, communication module, the MCU Main Processing Unit By multichannel analog-digital converter connected unit area multichannel data sample circuit, described area's multichannel data sample circuit is used for from distribution Each branch acquisition energy data of transformer platform area is sent to the multichannel analog-digital converter, and the multichannel analog-digital converter will The energy data of acquisition is sent to the MCU Main Processing Unit after analog-to-digital conversion, and the MCU Main Processing Unit is by the electric energy of acquisition Data calculate analysis and sort out counting abnormal energy data and distribution network failure reason, and the MCU Main Processing Unit is logical It crosses communication module and abnormal energy data and distribution network failure reason is sent to terminal device.
- 2. leak electricity information feedback alarm device according to claim 1 area, which is characterized in that the MCU Main Processing Unit packet Data statistic analysis module, information alert module are included, the data statistic analysis module is used to sample electricity to platform area multichannel data The collected energy data in road carries out sorting out statistics and calculates analysis reason, and the abnormal electric energy number in time obtaining classification analysis Information alert module is sent to according to distribution network failure reason；The information alert module is used to the abnormal energy data received and distribution network failure reason being sent to terminal device, Alert service is provided in time for distribution network failure.
- 3. leak electricity information feedback alarm device according to claim 2 area, which is characterized in that the data statistic analysis mould Distribution network failure reason is divided into the alarm of distribution transforming power loss according to abnormal energy data by root tuber, branch power loss is alarmed, distribution transforming phase shortage is alarmed, The alarm of branch phase shortage, electric leakage information overload alarm；The distribution transforming power loss alarm refers to the multiplex circuit whole power loss acquired in platform area；The branch power loss alarm refers to that this distinguishes the two-phase power loss on road；The distribution transforming phase shortage alarm refers to that the multiplex circuit acquired in platform area all lacks same phase；The branch phase shortage alarm refers to that this distinguishes the voltage rating that voltage acquired in road is lower than 0.7 times；It is more than the early warning residual current limited that the electric leakage information overload alarm, which refers to that platform distinguishes the residual current that road detects,.
- 4. leak electricity information feedback alarm device according to claim 1 area, which is characterized in that described area's multichannel data is adopted Sample circuit includes remaining in the three-phase current sample circuit, three-phase voltage sample circuit, three-phase that each branch in platform area is acquired data Aftercurrent sample circuit, the three-phase current sample circuit is used to acquire the three-phase current that this distinguishes road three phase mains, described Three-phase voltage sample circuit is used to acquire the three-phase voltage that this distinguishes road three phase mains, the three-phase residual current sample circuit The residual current of road three phase mains is distinguished for acquiring this.
- 5. leak electricity information feedback alarm device according to claim 4 area, which is characterized in that the multichannel analog-digital converter With multi pass acquisition channel, wherein every road acquisition channel includes seven acquisition input terminals, 3 acquisition input terminals are for acquiring this The three-phase voltage for distinguishing road three phase mains, the three-phase voltage sample circuit output end for distinguishing road with this are connected, 3 acquisitions Input terminal is used to acquire the three-phase current that this distinguishes road three phase mains, and the three-phase current sample circuit for distinguishing road with this is defeated Outlet is connected, and 1 acquisition input terminal is used to acquire the residual current that this distinguishes road three phase mains, distinguishes road with this The output end of three-phase residual current sample circuit is connected, and the multichannel analog-digital converter passes through data/address bus and the MCU master Control unit is connected.
- 6. leak electricity information feedback alarm device according to claim 1 area, which is characterized in that the MCU Main Processing Unit packet Central processing unit, memory and input-output equipment are included, the MCU Main Processing Unit is for controlling the multichannel analog-digital converter Starting acquisition analog data reads the data of acquisition and carries out data classification and access and the control normal work of external equipment Make.
- 7. leak electricity information feedback alarm device according to claim 1 area, which is characterized in that it further include power supply unit, institute It states power supply unit to be connected with MCU Main Processing Unit, said supply unit is entire alarm power supply, and said supply unit includes Power grid detection circuit carries out judgement selection battery power supply unit power supply by power grid detection circuit or power grid is powered.
- 8. leak electricity information feedback alarm device according to claim 7 area, which is characterized in that the battery power supply unit packet Include battery charge-discharge circuit, boosting output circuit, reduction voltage circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910916577.XA CN110531220A (en) | 2019-09-26 | 2019-09-26 | Leak electricity information feedback alarm device in platform area |
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