CN109245304A - Low pressure cloud platform platform area's distribution transforming Intelligent electric leakage monitors terminal - Google Patents
Low pressure cloud platform platform area's distribution transforming Intelligent electric leakage monitors terminal Download PDFInfo
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- CN109245304A CN109245304A CN201811192213.3A CN201811192213A CN109245304A CN 109245304 A CN109245304 A CN 109245304A CN 201811192213 A CN201811192213 A CN 201811192213A CN 109245304 A CN109245304 A CN 109245304A
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- 230000001131 transforming effect Effects 0.000 title claims abstract description 21
- 230000007935 neutral effect Effects 0.000 claims abstract description 27
- 238000004891 communication Methods 0.000 claims abstract description 23
- 238000001514 detection method Methods 0.000 claims abstract description 14
- 230000003750 conditioning effect Effects 0.000 claims abstract description 8
- 238000005070 sampling Methods 0.000 claims description 42
- 238000004804 winding Methods 0.000 claims description 21
- 239000004020 conductor Substances 0.000 claims description 15
- 238000012545 processing Methods 0.000 claims description 8
- 230000005611 electricity Effects 0.000 claims description 6
- 239000004973 liquid crystal related substance Substances 0.000 claims description 4
- 238000002788 crimping Methods 0.000 claims 1
- 238000012544 monitoring process Methods 0.000 abstract description 14
- 238000001914 filtration Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000007257 malfunction Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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- H02J13/0062—
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00001—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
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- H02J13/0075—
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
-
- 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
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission
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- Engineering & Computer Science (AREA)
- Human Computer Interaction (AREA)
- Power Engineering (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
A kind of low-voltage platform area distribution transforming Intelligent electric leakage monitoring terminal based on the cloud platform of 4G communication network, it can be by electrical parameters such as the earth leakage current of platform area low-voltage distribution transformer and high voltage lightning-protection element, neutral currents through signal acquisition, filtering, conditioning is input to 16 single-chip microcontrollers, the result obtained after single-chip microcontroller calculation process and identification master switch and three switch-dividings point, after conjunction state through being uploaded to host computer intelligent monitoring cloud platform by 4G communication module.Low-voltage intelligent is remotely adjusted by 4G communication module after the analysis of monitoring cloud platform, assessment and decision and monitors the setting parameter of terminal and switch to achieve the purpose that control switch switching on and off.This low-voltage distribution transformer intelligent monitor system, which is able to achieve, monitors the earth leakage current situation of the lightning-arrest element of the electric leakage situation and 10KV of each transformer platform area in real time, and finally can provide reliable basis with monitoring to solve the detection of the lightning-arrest component wear and low-voltage distribution transformer line leak current problems of 10KV.
Description
Technical field
The present invention relates to low-voltage platform area distribution transforming Study On Intelligent Monitoring Techniques fields, match more particularly, to a kind of low pressure cloud platform platform area
Become Intelligent electric leakage and monitors terminal.
Background technique
Currently, the electric leakage that the overwhelming majority is mounted on nonterminal is opened other than terminal leakage switch is applied widely
Close the approval for not obtaining user.Trace it to its cause be unknown cause Frequent trip after cannot notify in time scheduling and related people
Malfunction etc. caused by the self performance quality defect of member or leakage switch cause the security reliability at customer power supply end with
The continuity of operation is not good enough.Result in the leakage switch with creepage protection function for being mounted on nonterminal often by user in this way
It voluntarily cuts off, performs practically no function.
Further more, 10KV high-tension cable be struck by lightning or other reasons caused by take shelter from the thunder element damage caused by high pressure
Ground fault has there is presently no one kind targetedly detects monitoring scheme.
Above situation proposes a stern challenge to power supply department, if because power supply department is to 10KV high voltage supply
It, will if the earth leakage current (calling in the following text: " electric leakage ") of physical presence cannot be subject to supervision in route or low-voltage supply line
Great security risk is brought to people, animal and power supply unit (such as transformer).
Summary of the invention
Technical problem to be solved by the present invention lies in the ipc monitor clouds based on providing a kind of communication network by 4G
The low pressure cloud platform platform area distribution transforming that platform combines composition with the high low pressure grounding monitoring device at low-voltage platform area distribution transforming end is intelligently leaked
Pyroelectric monitor terminal, the lightning-arrest element of its area Neng Jianggetai 10KV and the scene of transformer are leaked electricity, neutral current and transformer are total
The testing result of the fault-signal parameter of switch and three switch-dividings is uploaded to ipc monitor cloud platform, passes through 4G communication network
Parameter set by the transformer master switch and three of them switch-dividing in each area of energy remote control and regulation, to reach each area's transformation of control
The purpose of the switching on and off of the master switch of device and three of them switch-dividing, to realize the low pressure electricity consumption situation to each transformer platform area
It is monitored in real time, and can finally be provided to solve the problems, such as the monitoring of the earth leakage current of low-voltage circuit and high voltage lightning-protection element
Reliable foundation.The low-voltage leakage dynamic state of parameters range that this detection terminal is monitored is wide, and it is fast that information up/down mutually passes speed.
Technical solution proposed by the invention is such that
A kind of low pressure cloud platform platform area's distribution transforming Intelligent electric leakage monitoring terminal, the transformer platform area 10KV of the terminal are total equipped with high-low pressure
Net or high-low pressure not two kinds of counterpoises of common network, and following three kinds of current signals are acquired for detecting: 1. low pressure leaks electricity over the ground
Flow ID1、ID2、ID3、ID4；The element R 2. 10KV high-tension line is taken shelter from the thunderGEarth leakage current IG1、IG2、IG3、IG4、IG5；3. the neutral conductor
The current transformer passed through pays side electric current IZ1、IZ2、IZ3；Above-mentioned 12 kinds of current signals respectively correspond input signal sampling, filter all the way
Output is correspondingly provided with the input terminal of ADC to 16 single-chip microcontrollers after wave module and signal conditioning module, and 16 single-chip microcontrollers are defeated to 12 roads
Enter current signal to be compared, after operation and processing, be exported by 485 buses to the MCU input terminal of 4G communication device, transformer
Master switch and switch-dividing point/conjunction state signal are exported to 16 one input terminals of single-chip microcontroller, after 16 single-chip microcontrollers are handled, will be switched
Control signal is exported to transformer master switch and switch-dividing point/close control signal element input terminal, and by transformer master switch with
Switch-dividing point/conjunction control signal is exported to the input terminal of MCU, at MCU by the switching signal input interface of 4G communication device
Signal after reason is uploaded by the transmitter of 4G wireless communication module, and ipc monitor cloud platform passes through 4G wireless communication module
The signal that receiver receives is exported to host computer.
16 single-chip microcontrollers one output is terminated with liquid crystal display；16 single-chip microcontrollers are further connected with keyboard.
When the transformer platform area 10KV counterpoises are high-low pressure common network, the transformer platform area 10KV high-low pressure common network ground connection ground
Online portion is simultaneously connected to platform area high voltage side of transformer three-phase windings respectively by the element R that takes shelter from the thunderGOutput end, which connects
The lower part of ground earth mat is successively connected to high pressure leakage current transformer CT from top to bottomGWith low-voltage leakage Current TransmitD, described
The high pressure leakage current that the neutral conductor of platform area step down side three-phase windings is connected to the high-low pressure common network counterpoises lower part is mutual
Sensor CTGWith low-voltage leakage Current TransmitDBetween, neutral line current transformator CT is further connected on the neutral conductorZ。
When the transformer platform area 10KV counterpoises are high-low pressure not common network, common network does not connect the transformer platform area 10KV high-low pressure
Ground earth mat is equipped with high-voltage connecting earth mat and low-voltage ground net, and platform area high voltage side of transformer three-phase windings pass through the element R that takes shelter from the thunder respectivelyG's
It is online that output end is attempted by high-voltage earthing, and high pressure leakage current transformer CT is connected in the high-voltage connecting earth matG, platform area transformer
It is online that the neutral conductor of low-pressure side three-phase windings is connected to the low-voltage ground, and it is mutual to be connected to low-voltage leakage electric current in the low-voltage ground net
Sensor CTD, neutral line current transformator CT is further connected on the neutral conductorZ。
The detection range of transformer neutral current is divided into following third gear: first grade is 0~100A, second gear be 100A~
500A, third gear are 500 A~1000A, the neutral line current transformator CTZSide winding, the third gear of output are paid equipped with three groups
Pay side electric current IZ1、IZ2、IZ3It is inputted respectively with the 1st signal sampling, the input terminal of filter module, the 2nd signal sampling, filter module
End is connected with the input terminal of the 3rd signal sampling, filter module；The high pressure leakage current transformer CTGSide is paid equipped with five groups
Five grades of winding, output pay side electric current IG110 μ A of <, IG2=10 μ A of μ A~50, IG3=50 μ A of μ A~500, IG4=500 μ A~5mA,
IG5=5mA~50mA respectively with the 4th signal sampling, filter module, the 5th signal sampling, filter module, the 6th signal sampling, filtering
Module, the 7th signal sampling, filter module and the 8th signal sampling, filter module input terminal be connected；The low-voltage leakage electricity
Current transformer CTDSide winding is paid equipped with four groups, the fourth gear of output pays side electric current ID1=5mA~50mA, ID2=50mA~500mA, ID3
=500mA~5A, ID4=5A~50A believes with the 9th signal sampling, filter module, the 10th signal sampling, filter module, the 11st respectively
Number sampling, filter module and the 12nd signal sampling, filter module input terminal be connected.
Compared with prior art, the present invention has following remarkable result:
(1) the low-voltage leakage dynamic state of parameters range that this low pressure cloud platform platform area's distribution transforming Intelligent electric leakage monitoring terminal is monitored is wide, can
Up to 104Times.Fourth gear is divided into for the detection range of low-voltage leakage, every grade of dynamic range passes through low-voltage leakage electric current up to 10 times
Its corresponding signal sampling of mutual inductor, filtering and conditioning circuit are allocated as fourth gear and are sampled and handled, and can satisfy in this way
The actual monitored requirement of the low-voltage leakage in 10KV platform area.This detection terminal can monitor element of taking shelter from the thunder in 10KV high-tension line simultaneously
The failure leakage current situation of (such as surge protector), the detection range of the electric leakage of high voltage lightning-protection element is divided into following five by it
Shelves, every grade of dynamic range is up to 5~10 times；First grade: < 10 μ A is considered as lightning-arrest element fault and disconnects；Second gear: 10 μ A~
50 μ A, are considered as the normal range of operation of lightning-arrest element；Third gear: the 50 μ A of μ A~500 are considered as lightning-arrest element and slight electric leakage occur；
Fourth speed: 500 μ A~5mA are considered as lightning-arrest element and moderate electric leakage occur；Fifth speed: 5mA~50mA is considered as lightning-arrest element and occurs
Severe electric leakage.The earth mat of the transformer platform area 10KV of the invention is equipped with high-low pressure common network and high-low pressure not two kinds of ground connection shapes of common network
Formula is grounded, then high pressure leakage current transformer CT if it is high-low pressure common networkGIt has to be arranged in low-voltage leakage current transformer
CTDTop；If it is high-low pressure, common network is not grounded, then high pressure leakage current transformer CTGWith low-voltage leakage current transformer
CTDIt is separately positioned in high-voltage connecting earth mat and low-voltage ground net, to detect high voltage lightning-protection element earth leakage current and low pressure
Such as there is earth leakage current in earth leakage current, then fault condition can be uploaded to the cloud platform of host computer in time, so as to
To monitor low-voltage platform area drain conditions well, and then obtain the remarkable result of its safe operation.
(2) the malfunction letter for dividing/closing a floodgate of each area's transformer master switch of this monitor terminal and three of them switch-dividing
It number is no longer transmitted via 485 communication bus of 16 single-chip microcontrollers, this is because this channel compares congestion, is unfavorable for certain
The processing of a little emergency events, so the interruption of the miniature control unit MCU individually entered into 4G communication device controls and receives end
It is handled, so as to which the fault-signal of transformer master switch and three of them switch-dividing is quick via 4G wireless communication module
Ground is transmitted to the cloud platform of host computer, and it is fast that signal up/down mutually passes speed.
(3) the ipc monitor cloud platform of this monitor terminal is responsible for obtaining the operation of many low-voltage intelligent detection terminals
Data, can monitor in real time each area distribution transforming electric leakage leakage situation and 10KV high voltage lightning-protection element fault condition and made with this
Corresponding countermeasure and processing out.
Low-voltage intelligent is remotely adjusted by 4G wireless communication module after the analysis of ipc monitor cloud platform, assessment and decision
Detection terminal and the setting parameter of transformer master switch and three of them switch-dividing control the master switch and three of them is separated to reach
The purpose divided/closed a floodgate closed.This low pressure cloud platform platform area's distribution transforming Intelligent electric leakage detection terminal is able to achieve to each transformer platform area
Low pressure earth leakage current situation and 10KV high voltage lightning-protection element earth leakage current situation are monitored in real time, and finally can be
The detection and monitoring for solving the problems, such as 10KV high voltage lightning-protection component wear and low-voltage distribution transformer line-to-ground leakage current provide reliably
Foundation.
Detailed description of the invention
Fig. 1 is a kind of electric theory structure block diagram of low pressure cloud platform platform area's distribution transforming Intelligent electric leakage monitoring terminal of the present invention,
In, the earth mat of the transformer platform area 10KV is high-low pressure common network ground connection.
Fig. 2 is the ground of the transformer platform area 10KV in the platform of low pressure cloud platform shown in Fig. 1 area's distribution transforming Intelligent electric leakage monitoring terminal
Net is changed to the high-low pressure electric theory structure block diagram that common network is not grounded.
Specific embodiment
The present invention is further elaborated by following example.
Referring to shown in Fig. 1, Fig. 2, a kind of low pressure cloud platform platform area's distribution transforming Intelligent electric leakage monitoring terminal, the 10KV of the terminal becomes
Depressor platform area is equipped with high-low pressure common network or high-low pressure not two kinds of counterpoises of common network, and for detecting the following three kinds of electric currents letter of acquisition
Number: 1. low pressure earth leakage current ID1、ID2、ID3、ID4；The element R 2. 10KV high-tension line is taken shelter from the thunderGEarth leakage current IG1、IG2、
IG3、IG4、IG5；3. the neutral line current transformator CT that neutral conductor N is passed throughZPay side electric current IZ1、IZ2、IZ3；Above-mentioned 12 kinds of electric currents letter
Number respectively corresponding input, output to 16 single-chip microcontrollers 1 are correspondingly provided with after signal sampling, filter module and signal conditioning module all the way
The input terminal of ADC, 16 single-chip microcontrollers 1 are compared 12 road input current signals, after operation and processing, by 485 buses (by
One 485 bus 6 and the 2nd 485 bus 8 are connected in series) MCU9 input terminal of the output to 4G communication device, transformer master switch
It exports with switch-dividing point/conjunction state signal to 16 1 one input terminals of single-chip microcontroller, by switch control after 16 single-chip microcontrollers 1 are handled
Signal is exported to transformer master switch and switch-dividing point/close control signal element input terminal, and by transformer master switch with separate
It closes and divides/close switching signal input interface 7 output of the control signal by 4G communication device to the input terminal of MCU9, handled through MCU9
Signal afterwards is uploaded by the transmitter that 4G wirelessly communicates (transmitting) module 10, and ipc monitor cloud platform is wirelessly communicated by 4G
The signal that the receiver of (reception) module 11 receives is exported to host computer 12.
16 single-chip microcontrollers 1 one output is terminated with liquid crystal display 2；16 single-chip microcontrollers 1 are further connected with keyboard 3.
When the transformer platform area 10KV counterpoises are high-low pressure common network, it is grounded in the transformer platform area 10KV high-low pressure common network
Earth mat top is simultaneously connected to platform area high voltage side of transformer three-phase windings A1、B1、C1It is serially connected with lightning-arrest element R respectivelyGOutput end, should
The lower part of high-low pressure common network counterpoises is successively connected to high pressure leakage current transformer CT from top to bottomGIt is mutual with low-voltage leakage electric current
Sensor CTD, described area step down side three-phase windings A2、B2、C2Neutral conductor N be connected to the high-low pressure common network counterpoises
The high pressure leakage current transformer CT of lower partGWith low-voltage leakage Current TransmitDBetween, it is further connected on the neutral conductor N
Property line current mutual inductor CTZ。
When the transformer platform area 10KV counterpoises are high-low pressure not common network, common network does not connect the transformer platform area 10KV high-low pressure
Ground earth mat is equipped with high-voltage connecting earth mat and low-voltage ground net, platform area high voltage side of transformer three-phase windings A1、B1、C1Respectively by lightning-arrest
Element RGOutput end to be attempted by high-voltage earthing online, high pressure leakage current transformer CT is connected in the high-voltage connecting earth matG, platform
Area step down side three-phase windings A2、B2、C2Neutral conductor N to be connected to the low-voltage ground online, connect in the low-voltage ground net
There is low-voltage leakage Current TransmitD, neutral line current transformator CT is further connected on the neutral conductor NZ。
The detection range of transformer neutral current is divided into following third gear: first grade is 0~100A, second gear be 100A~
500A, third gear are 500 A~1000A, the neutral line current transformator CTZSide winding, the third gear of output are paid equipped with three groups
Pay side electric current IZ1、IZ2、IZ3It is inputted respectively with the 1st signal sampling, the input terminal of filter module, the 2nd signal sampling, filter module
End is connected with the input terminal of the 3rd signal sampling, filter module；The high pressure leakage current transformer CTGSide is paid equipped with five groups
Five grades of winding, output pay side electric current IG110 μ A of <, IG2=10 μ A of μ A~50, IG3=50 μ A of μ A~500, IG4=500 μ A~5mA,
IG5=5mA~50mA respectively with the 4th signal sampling, filter module, the 5th signal sampling, filter module, the 6th signal sampling, filtering
Module, the 7th signal sampling, filter module and the 8th signal sampling, filter module input terminal be connected；The low-voltage leakage electricity
Current transformer CTDSide winding is paid equipped with four groups, the fourth gear of output pays side electric current ID1=5mA~50mA, ID2=50mA~500mA, ID3
=500mA~5A, ID4=5A~50A believes with the 9th signal sampling, filter module, the 10th signal sampling, filter module, the 11st respectively
Number sampling, filter module and the 12nd signal sampling, filter module input terminal be connected.
Described 1st, 2,3,4,5,6,7,8,9,10,11,12 signal samplings, filter module output signal pass through the respectively
1, the corresponding band modulus evidence of 16 single-chip microcontrollers 1 is inputted respectively after the conditioning of 2,3,4,5,6,7,8,9,10,11,12 signal conditioning modules
Convert the input terminal of ADC.
16 single-chip microcontrollers 1 are further connected with liquid crystal display 2 and keyboard 3.
This low pressure cloud platform platform area's distribution transforming Intelligent electric leakage monitoring terminal is mainly made of following three parts:
(1) low-voltage intelligent detects terminal
Its core is 16 single-chip microcontrollers 1, and major function is to receive three road Current TransmitsZ、CTG、CTDPay side electric current
Signal and the analog signal after signal sampling, filtering and conditioning, then ADC analog-to-digital conversion and identifying processing through this single-chip microcontroller
Afterwards, 4G communication device is sent to by the first, second 485 buses 6,8 and be uploaded to host computer 12.It is connect by switch signal input end
Mouthfuls 7 receive the master switch of low-voltage distribution transformers and three road switch-dividings divide/energization control signal, and be directly output to 4G communication device
MCU9 interrupting input end mouth is uploaded to 12 cloud platform of host computer so as to quickly will test result and is handled.
(2) 4G communication device
It is the relay between low-voltage intelligent detection terminal and host computer cloud platform, by the miniature control list of a MCU9(
Member), the first, second 485 buses 6,8, switching signal input interface 7 and 4G wireless communication (transmitting) module 10 form, responsible association
The area Tiao Tai low-voltage intelligent detects the wireless receiving and dispatching of the transmission control signal between terminal and host computer.
(3) ipc monitor cloud platform
It is responsible for obtaining the operation data of the low-voltage intelligent detection terminal of many areas Ge Tai distribution transforming, the distribution transforming in each area can be monitored in real time
The fault condition of electric leakage leakage and 10KV high voltage lightning-protection element simultaneously makes corresponding countermeasure and processing with this.
Claims (5)
1. a kind of low pressure cloud platform platform area's distribution transforming Intelligent electric leakage monitors terminal, it is characterised in that: the 10KV transformer platform of the terminal
Area is equipped with high-low pressure common network or high-low pressure not two kinds of counterpoises of common network, and acquires following three kinds of current signals for detecting: 1.
Low pressure earth leakage current ID1、ID2、ID3、ID4；The element R 2. 10KV high-tension line is taken shelter from the thunderGEarth leakage current IG1、IG2、IG3、
IG4、IG5；3. the current transformer that the neutral conductor passes through pays side electric current IZ1、IZ2、IZ3；Above-mentioned 12 kinds of current signals respectively correspond input
Output is correspondingly provided with the input terminal of ADC to 16 single-chip microcontrollers after signal sampling, filter module and signal conditioning module all the way, and 16
Single-chip microcontroller is compared 12 road input current signals, after operation and processing, is exported by 485 buses to 4G communication device
MCU input terminal, transformer master switch are exported with switch-dividing point/conjunction state signal to 16 one input terminals of single-chip microcontroller, through 16 lists
After the processing of piece machine, output to transformer master switch and switch-dividing point/close control signal element input terminal, and by transformer master switch
It is exported by the switching signal input interface of 4G communication device to the input terminal of MCU, through MCU with switch-dividing point/conjunction control signal
Treated, and signal is uploaded by the transmitter of 4G wireless communication module, and ipc monitor cloud platform passes through 4G wireless communication module
The signal that receives of receiver export to host computer.
2. low pressure cloud platform platform area's distribution transforming Intelligent electric leakage according to claim 1 monitors terminal, it is characterised in that: described 16
The position output of single-chip microcontroller one is terminated with liquid crystal display；16 single-chip microcontrollers are further connected with keyboard.
3. low pressure cloud platform platform area's distribution transforming Intelligent electric leakage according to claim 1 monitors terminal, it is characterised in that: described
The transformer platform area 10KV high-low pressure common network counterpoises top is simultaneously connected to platform area high voltage side of transformer three-phase windings and passes through respectively and keep away
Thunder element RGOutput end, the lower part of the high-low pressure common network counterpoises is successively connected to high pressure leakage current transformer from top to bottom
CTGWith low-voltage leakage Current TransmitD, it is total that the neutral conductor of described area's step down side three-phase windings is connected to the high-low pressure
The high pressure leakage current transformer CT of net counterpoises lower partGWith low-voltage leakage Current TransmitDBetween, in the neutral conductor
On be further connected with neutral line current transformator CTZ。
4. low pressure cloud platform platform area's distribution transforming Intelligent electric leakage according to claim 1 monitors terminal, it is characterised in that: described
Common network counterpoises are not equipped with high-voltage connecting earth mat and low-voltage ground net, platform area high voltage side of transformer to the transformer platform area 10KV high-low pressure
Three-phase windings pass through the element R that takes shelter from the thunder respectivelyGOutput end to be attempted by high-voltage earthing online, be connected to high pressure in the high-voltage connecting earth mat
Leakage current transformer CTG, it is online that the neutral conductor of platform area step down side three-phase windings is connected to the low-voltage ground, low at this
Low-voltage leakage Current Transmit is connected in crimping earth matD, neutral line current transformator CT is further connected on the neutral conductorZ。
5. low pressure cloud platform platform area's distribution transforming Intelligent electric leakage according to claim 3 or 4 monitors terminal, it is characterised in that: institute
The detection range for stating transformer neutral current is divided into following third gear: first grade is 0~100A, and second gear is 100A~500A,
Third gear is 500 A~1000A, the neutral line current transformator CTZSide winding is paid equipped with three groups, the third gear of output pays side electricity
Flow IZ1、IZ2、IZ3Respectively with the 1st signal sampling, the input terminal of filter module, the 2nd signal sampling, filter module input terminal and the 3rd
Signal sampling, filter module input terminal be connected；The high pressure leakage current transformer CTGSide winding is paid equipped with five groups, it is defeated
Five grades out pay side electric current IG110 μ A of <, IG2=10 μ A of μ A~50, IG3=50 μ A of μ A~500, IG4=500 μ A~5mA, IG5=5mA
~50mA respectively with the 4th signal sampling, filter module, the 5th signal sampling, filter module, the 6th signal sampling, filter module,
The input terminal of 7 signal samplings, filter module and the 8th signal sampling filter module is connected；The low-voltage leakage current transformer
CTDSide winding is paid equipped with four groups, the fourth gear of output pays side electric current ID1=5mA~50mA, ID2=50mA~500mA, ID3=500mA~
5A、ID4=5A~50A respectively with the 9th signal sampling, filter module, the 10th signal sampling, filter module, the 11st signal sampling, filter
Wave module is connected with the input terminal of the 12nd signal sampling, filter module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811192213.3A CN109245304A (en) | 2018-10-12 | 2018-10-12 | Low pressure cloud platform platform area's distribution transforming Intelligent electric leakage monitors terminal |
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| CN201811192213.3A CN109245304A (en) | 2018-10-12 | 2018-10-12 | Low pressure cloud platform platform area's distribution transforming Intelligent electric leakage monitors terminal |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110988592A (en) * | 2019-11-27 | 2020-04-10 | 云南电力技术有限责任公司 | Electric leakage safety monitoring device and method |
| CN113391097A (en) * | 2021-05-11 | 2021-09-14 | 平湖市通用电气安装有限公司 | Detection apparatus for intelligence is joined in marriage and is become terminal |
| CN117452282A (en) * | 2023-12-25 | 2024-01-26 | 北京天阳睿博科技有限公司 | Intelligent leakage monitoring terminal for distribution transformer of low-voltage transformer area for coal mine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110988592A (en) * | 2019-11-27 | 2020-04-10 | 云南电力技术有限责任公司 | Electric leakage safety monitoring device and method |
| CN113391097A (en) * | 2021-05-11 | 2021-09-14 | 平湖市通用电气安装有限公司 | Detection apparatus for intelligence is joined in marriage and is become terminal |
| CN113391097B (en) * | 2021-05-11 | 2023-12-22 | 平湖市通用电气安装有限公司 | Detection device of intelligent distribution transformer terminal |
| CN117452282A (en) * | 2023-12-25 | 2024-01-26 | 北京天阳睿博科技有限公司 | Intelligent leakage monitoring terminal for distribution transformer of low-voltage transformer area for coal mine |
| CN117452282B (en) * | 2023-12-25 | 2024-02-27 | 北京天阳睿博科技有限公司 | Intelligent leakage monitoring terminal for distribution transformer of low-voltage transformer area for coal mine |
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