CN108879948A - A kind of intelligent low-pressure cable branch box and its operation method and intelligent distribution area - Google Patents
A kind of intelligent low-pressure cable branch box and its operation method and intelligent distribution area Download PDFInfo
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- CN108879948A CN108879948A CN201810614017.4A CN201810614017A CN108879948A CN 108879948 A CN108879948 A CN 108879948A CN 201810614017 A CN201810614017 A CN 201810614017A CN 108879948 A CN108879948 A CN 108879948A
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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
- H02J13/00006—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 information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00007—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 information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using the power network as support for the transmission
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02B90/20—Smart grids as enabling technology in buildings sector
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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
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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
- 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
- Y04S40/121—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 the power network as support for the transmission
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The present invention proposes a kind of intelligent low-pressure cable branch box and its operation method and intelligent distribution area, intelligent low-pressure cable branch box include intelligent monitoring terminal, main bus-bar, disconnecting switch, chamber door travel switch and intelligent residual current action breaker；Intelligent monitoring terminal is connected by low-voltage power line with the power cable of isolating switch power side；Intelligent monitoring terminal is connected by controlling cable with disconnecting switch auxiliary switch and chamber door travel switch；One end of main bus-bar is connected with the load side of disconnecting switch, and the other end of main bus-bar is connected at least two intelligent residual current action breakers.The present invention uses voltage power-line carrier communication technology, using power cable as communication media, realize the acquisition of power distribution station operation data and transmission, with exempt from wiring, the technical advantages such as construction is simple, performance is stable, maintenance management is convenient, coverage area is consistent with low-voltage network, and communication channel reliability is consistent with low-voltage network physical reliability.
Description
Technical field
The present invention relates to technical field of electric power, and in particular to a kind of intelligent low-pressure cable branch box and its operation method and intelligence
It can power distribution station.
Background technique
Currently, the controller switching equipment automatization level of power distribution station is low, general lack of effective equipment monitoring means and operation
The big data analysis of monitoring measure, corresponding platform area lacks most basic bottom data, can not effectively support power supply company's fortune inspection special
Industry is quick to low-voltage network failure, preparation positions and the demand of platform area fine-grained management.Low-voltage cable junction box is allocated radio
The important second level controller switching equipment in area is mainly used for being connected for the distribution transforming of platform area and power consumer centralized measure electricity box, carries out to it
Intelligentized design is to realize the important measures of power distribution station low-voltage distributing line operating condition monitoring, is Intelligent platform zone construction retrofit
Important content.
The intelligent low-pressure cable branch box of conventional power distribution station uses fiber optic communication, is applying man-hour requirement laying communication line
Cable and communication cable ditch is excavated, construction investment is big and long construction period.Further, since the communications cable generallys use direct-burried laying,
Once fracture defect occurs, malfunction elimination and maintenance difficulty are larger.
Other than using fiber optic communication mode, intelligent low-pressure cable branch box is also may be implemented in micropower wireless communication technology
Data transmission, although having the advantages that exempt from wiring, signal transmission is easy to be influenced by architectural barriers object barrier, and transmission away from
From short, traffic rate is low, higher cost, it is not able to satisfy requirement of the intelligent distribution area construction to communication.
Summary of the invention
In order to overcome the above-mentioned deficiencies of the prior art, the present invention proposes a kind of intelligent low-pressure cable branch box and its operation side
Method and intelligent distribution area.
A kind of intelligent low-pressure cable branch box comprising：Intelligent monitoring terminal, main bus-bar, disconnecting switch, chamber door stroke are opened
It closes and intelligent residual current action breaker；The source side electric power electricity that intelligent monitoring terminal passes through low-voltage power line and disconnecting switch
Cable is connected；Intelligent monitoring terminal is connected by controlling cable with the auxiliary switch of disconnecting switch and chamber door travel switch；Main bus-bar
One end be connected with the load side of disconnecting switch, the other end of main bus-bar and at least two intelligent residual current action breaker phases
Even；The auxiliary switch of disconnecting switch is used to indicate the position signal of disconnecting switch；Chamber door travel switch is used to indicate intelligent low-pressure
The door opening or closing state of cable branch box.
Intelligent monitoring terminal includes：CPU module, RS485 communication module, DI acquisition module and first carrier module；RS485
Communication module is connected with intelligent residual current action breaker RS485 communication interface, acquires intelligent residual current action breaker
The operation data of each branched line；DI acquisition module is low using the position signal of control cable acquisition disconnecting switch and the intelligence
The door opening or closing status signal of voltage cable feeder pillar；CPU module receive the operation data, disconnecting switch position signal and open
Closed state signal analyzes all acquisition signals, and analysis result is sent to first carrier module；First carrier module connects
Contracture analysis first loads on low-voltage power line as a result, obtaining high frequency carrier signal of communication through processing, then is transmitted by power cable
To the intelligent distribution transformer terminals being set in platform area distribution transforming comprehensive distribution box.
Intelligent residual current action breaker includes：RS485 communication interface；Intelligent residual current action breaker passes through
RS485 communication interface is connected with RS485 communication module；RS485 communication interface output operation data include：The voltage of main bus-bar
Signal；The position signal of breaker；Load current, leakage current, active power, reactive power, power factor, electric energy in outlet
Quality signal, short circuit, ground connection, overload, over-voltage, under-voltage, phase shortage and signal off zero.
Electric energy quality signal includes：The voltage deviation signal of current harmonics component, tri-phase unbalance factor signal and main bus-bar.
Intelligent monitoring terminal further includes：Power module；Power module is equipped with super capacitor as backup power supply；When low pressure is matched
Grid collapses, when the intelligent monitoring terminal loses main working power, investment that super capacitor is seamless.
The position signal of intelligent monitoring terminal acquisition, including：DI acquisition module in intelligent monitoring terminal passes through control electricity
Cable is connected with the auxiliary switch of disconnecting switch and chamber door travel switch respectively, acquire disconnecting switch position signal and the intelligence
The door opening or closing status signal of low-voltage cable junction box.
Intelligent monitoring terminal analysis handles the position signal, status signal and high frequency carrier signal of communication and passes through low tension
Line of force output, including：RS485 communication module in intelligent monitoring terminal receives RS485 in intelligent residual current action breaker
The operation data of communication interface output；Position signal, the chamber door row of the disconnecting switch of DI module acquisition in intelligent monitoring terminal
The status signal of Cheng Kaiguan；The position signal and feeder pillar of CPU module in intelligent monitoring terminal to operation data, disconnecting switch
Door opening or closing status signal analyzed, will analysis result be sent to the first carrier module in the intelligent monitoring terminal；
First carrier module receives the analysis of CPU module output as a result, analysis result obtains high frequency carrier signal of communication through processing and adds
It is downloaded to low-voltage power line, then the intelligent distribution transformer terminals in platform area distribution transforming comprehensive distribution box are transferred to by power cable.
A kind of intelligent distribution area comprising：Intelligent low-pressure cable branch box, comprehensive distribution box, centralized measure electricity box and
Power cable；The enter line side of intelligent low-pressure cable branch box is connected using power cable with the comprehensive distribution box, and electric power is utilized
Cable is by high frequency carrier communication signal transmissions to the comprehensive distribution box；The outgoing line side of intelligent low-pressure cable branch box utilizes electric power
Cable is connected at least two centralized measure electricity box.
Comprehensive distribution box, including：Intelligent distribution transformer terminals, outlet switch and main bus-bar；Intelligent low-pressure cable branch box into
Line side is connected using power cable with the outlet switch of comprehensive distribution box；The input terminal of second carrier module in intelligent distribution transformer terminals
It is connected with main bus-bar.
The input terminal of second carrier module is connected with main bus-bar by low-voltage power line；Second carrier module is acquired and is handled
The high frequency carrier signal of communication that intelligent low-pressure cable branch box is sent by power cable.
Intelligent low-pressure cable branch box is gone out using One In and Two Out, one into three or one into four goes out structure.
Intelligent residual electricity when the work of intelligent low-pressure cable branch box, in outlet in intelligent low-pressure cable branch box
Action breaker is flowed, by the voltage of main bus-bar, the load current of outlet, leakage current, wattful power in intelligent low-pressure cable branch box
Rate, reactive power, power factor and electric energy quality signal are sent to by the RS485 interface of intelligent residual current action breaker
The intelligent monitoring terminal of the comprehensive distribution box；It, should be reliable by disconnecting switch when intelligent low-pressure cable branch box is overhauled
Isolation, isolation live part ensure check man's safety.
Intelligent distribution area further includes：When short circuit or ground fault occur for the branched line of intelligent low-pressure cable branch box
When, intelligent residual current action breaker carries out protection act separating brake, and sends protection signal to by RS485 interface
Intelligent monitoring terminal；When overload, over-voltage, under-voltage, phase shortage or event off zero occurs in the branched line of intelligent low-pressure cable branch box
When barrier, intelligent monitoring terminal of the intelligent residual current action breaker using RS485 interface output alarm signal extremely.Intelligent low-pressure
Intelligent monitoring terminal collects all protection acts in cable branch box and alarm signal is all uploaded to by carrier communication mode
The intelligent distribution transformer terminals installed in platform area distribution transforming comprehensive distribution box
Compared with the immediate prior art, technical solution provided by the invention is had the advantages that：
1. the intelligent monitoring terminal that intelligent low-pressure cable branch box of the present invention uses can monitor low-voltage distributing line on-line
Operation data, line short and ground fault, overcurrent, short circuit, phase shortage, over-voltage can be protected, and use intelligence
Energy residual current action breaker can also effectively supporting table area distribution line failure positions and repairing, promotion first-aid repair efficiency subtract
Few power off time；
2. not needing laying communication cable between intelligent low-pressure cable branch box and the distribution transforming of platform area of the invention can be achieved with
Data acquisition and transmission, and system overhaul and maintenance are all more convenient, even if breaking down, can also exclude as early as possible；
3. the present invention uses low voltage power line carrier technology, using power cable as communication media, low-voltage distribution is realized
Net operation data acquisition and quickly transmission, and exempt from wiring, technology maturation, implement simply, cost is relatively low；
4. the problem of present invention is routed there is no the communications cable and excavates cable duct, with normal procedure intelligent type intelligent low-pressure cable
Feeder pillar compares, and with saving, the investment of optical cable and its channel construction, engineering construction is simple, communication system architecture is simple, fortune
Capable and maintenance facilitates advantage；
5. the second carrier module of intelligence distribution transformer terminals configuration of the invention is connected with platform area distribution low-voltage main bus-bar, can adopt
Collection and processing high frequency carrier signal of communication；
6, the intelligent monitoring terminal that the present invention uses can also effectively prevent electric wiring or electrical equipment grounding failure to cause
Electrical fire and electrical equipment damage accident and to personal Danger Electric shock risk provide mediate contact protection.
Detailed description of the invention
Fig. 1 is the entire block diagram of intelligent distribution area of the present invention；
Fig. 2 is intelligent low-pressure cable branch box block diagram of the invention.
Specific embodiment
Further details of the technical solution of the present invention with reference to the accompanying drawings of the specification.
As shown in Figure 1, intelligent distribution area proposed by the present invention includes：The distribution transforming of platform area, comprehensive distribution box, intelligent distribution transforming are whole
End, intelligent low-pressure cable branch box, centralized measure electricity box and power cable.
Intelligent distribution transformer terminals are equipped with carrier module, and the input terminal of carrier module is connected with the main bus-bar of platform area distribution transforming, adopts
Collect the high frequency carrier signal of communication that the intelligent monitoring terminal being installed in intelligent low-pressure cable branch box uploads.
Intelligent low-pressure cable branch box is gone out using One In and Two Out, one into three and one into four goes out structure.
When the work of intelligent low-pressure cable branch box, the intelligence in intelligent low-pressure cable branch box Zhong Mei road outlet is surplus
Aftercurrent action breaker by RS485 communication interface by low-voltage cable junction box main bus-bar voltage, branched line load current,
Leakage current, active power, reactive power, power factor, power quality operation data are uploaded to intelligent monitoring terminal；When intelligence is low
When voltage cable feeder pillar branched line is operating abnormally, intelligent residual current action breaker exports alarm signal, and by alarm signal
Number intelligent monitoring terminal is uploaded to by RS485 communication interface；When intelligent low-pressure cable branch box branched line breaks down,
Intelligent residual current action breaker is uploaded to by protection act separating brake, and by protection signal by RS485 communication interface
Intelligent monitoring terminal.
The above method further includes：When the maintenance of intelligent low-pressure cable branch box, the necessary separating brake of the disconnecting switch, reliably
Live part is isolated, to guarantee the safety of service personnel and equipment.
Embodiment 1：
Intelligent low-pressure cable branch box enter line side is connected by power cable with the distribution low-voltage outlet of platform area, intelligent low-pressure
Every equipment in cable branch box 1#~3# is all made of one into three structure gone out, the inlet wire of each intelligent low-pressure cable branch box
Side is connected by power cable with the distribution low-voltage side outlet of platform area, and distribution transforming high voltage side lead-in in platform area, which is connected, is connected to middle voltage distribution line
Road；The outgoing line side of intelligent low-pressure cable branch box by power cable be connected be connected to resident, the collection of industry and commerce power consumer is fallen into a trap
Scale case；Intelligent low-pressure cable branch box includes intelligent monitoring terminal, wherein intelligent monitoring terminal passes through low-voltage power line and intelligence
The disconnecting switch of energy low-voltage cable junction box enter line side is connected, and the signal of acquisition is added in a manner of high frequency carrier signal of communication
It is loaded in power cable and is transmitted to the intelligent distribution transformer terminals installed in platform area distribution transforming comprehensive distribution box.
Distribution network electric energy passes sequentially through the distribution transforming of platform area, intelligent cable feeder pillar, centralized measure electricity box are distributed to power distribution station
Interior terminal power consumer.Power cable between intelligent cable feeder pillar and the distribution transforming of platform area may be used also other than transmitting electric energy
To be used for transmission high frequency carrier signal of communication as communication media.
Intelligent distribution transformer terminals are installed in platform area distribution transforming comprehensive distribution box, intelligent distribution transformer terminals are equipped with the second carrier module,
The input terminal of second carrier module is connected by low-voltage power line with the low pressure main bus-bar in platform area distribution transforming comprehensive distribution box, is carried
Wave module receives the high frequency carrier signal of communication uploaded with all intelligent cable feeder pillars in treatment bench area, whole through intelligent distribution transforming
After holding analysis processing, platform area operation data is uploaded to by power distribution automation main station system by optical fiber or wireless public network/private network.By
Cannot be by transformer, therefore in low-voltage power line high frequency carrier signal of communication, intelligent distribution transformer terminals are necessarily mounted to match and be lower
Press side.
Intelligent low-pressure cable branch box is the important second level controller switching equipment of power distribution station low-voltage distributing line, intelligence of the invention
Can low-voltage cable junction box include：Intelligent monitoring terminal, disconnecting switch, main bus-bar, intelligent residual current action breaker.Intelligence
Residual current action breaker is used to monitor branched line operation data on-line, and to the short circuit of route and ground fault,
Overcurrent, phase shortage, off zero, over-voltage are protected.When disconnecting switch is mainly used for the maintenance of intelligent cable feeder pillar, reliable isolation strip
Electric part, and there is apparent cut-off point to guarantee the safety of service work.
Embodiment 2：
The disconnecting switch of equipment block diagram in intelligent cable feeder pillar as shown in Figure 2, intelligent low-pressure cable branch box is logical
Power cable is crossed to be connected with the low-pressure line-outgoing of platform area distribution transforming comprehensive distribution box switch.Every road power consumer centralized measure electricity box branch
Road passes through power cable and is connected with the movement open circuit of the outlet intelligent residual current of intelligent cable feeder pillar, intelligent residual current
Action breaker can disconnect being connected between power consumer centralized measure electricity box and intelligent low-pressure cable branch box main bus-bar.If
Intelligent residual current action breaker in intelligent low-pressure cable branch box is mainly used for measuring branched line, protect
Shield, control and power quality on-line monitoring, and the signal monitored is uploaded to intellectual monitoring end by RS485 communication mode
End.Intelligent residual current action breaker defencive function includes：Short circuit and ground fault, overload, phase shortage, off zero, over-voltage are protected
Shield etc..The disconnecting switch of intelligent low-pressure cable branch box is connected by power cable is connected to the low pressure of platform area distribution transforming comprehensive distribution box
Outlet switch.
Wherein, intelligent monitoring terminal has CPU module, power module, RS485 communication module, DI acquisition module (switch shape
State amount acquisition module), carrier module (carrier communication module).Wherein, the position signal of DI acquisition module acquisition disconnecting switch, case
Door open and-shut mode signal.
When the transmission line circuit of low-voltage cable junction box operates normally, it is set to intelligent low-pressure cable branch box Zhong Mei road outlet
Intelligent residual current action breaker on circuit, by main bus-bar voltage, outlet load current, active power, reactive power, function
The monitoring data such as rate factor, power quality are uploaded to intelligent monitoring terminal by RS485 interface；
When the transmission line circuit of low-voltage cable junction box breaks down, it is set to failure outlet in intelligent low-pressure cable branch box
Protection act separating brake is realized that failure quickly isolates, and fault-signal is led to by the intelligent residual current action breaker on circuit
It crosses RS485 interface and is uploaded to intelligent monitoring terminal；
Collected all branched lines are measured, protection, are controlled by the RS485 communication module in intelligent monitoring terminal
The signals such as system, power quality are sent to CPU module, and after CPU module comprehensive analysis processing, Comprehensive analysis results signal is transmitted
To first carrier module, carrier module is transmitted to platform area by all operation datas that power cable acquires intelligent monitoring terminal
The intelligent distribution transformer terminals installed in distribution transforming comprehensive distribution box；After power module in intelligent monitoring terminal is used as using super capacitor
Stand-by power source, and it is integrated in terminal inner；When terminal mains power failure, super capacitor energy automatic seamless investment, and should maintain eventually
End and terminal communication module work normally at least 1 minute.
Intelligent monitoring terminal acquisition signal include:Branched line operation data, disconnecting switch position signal, door opening or closing
Status signal.The intelligent residual current action breaker of RS485 communication module and each outlet branch of intelligent low-pressure cable branch box
RS485 communication interface is connected, for each branched line on-line monitoring, protection act and alarm, the acquisition of electric energy quality signal.
DI acquisition module is connected with the disconnecting switch of intelligent low-pressure cable branch box and chamber door travel switch respectively by controlling cable,
For the acquisition of disconnecting switch position and door opening or closing status signal, wherein chamber door travel switch is used to indicate door opening or closing shape
State.
The first carrier module of intelligent monitoring terminal is connected with intelligent low-pressure cable branch box enter line side power cable, uses
In the intelligence for installing received signal to platform area distribution low-voltage side by power cable in a manner of high frequency carrier signal of communication
Distribution transformer terminals transmission.The second carrier module that intelligent distribution transformer terminals are equipped with is connected with platform area distribution low-voltage main bus-bar, can acquire
With processing high frequency carrier signal of communication, do not needed individually between intelligent low-pressure cable branch box and intelligent distribution transformer terminals to realize
The laying communications cable can be carried out data transmission.
Intelligent residual current action breaker has RS485 communication interface, can pass through the signal of acquisition on communication mode
Intelligent monitoring terminal is reached, the signal of acquisition includes：Main bus-bar voltage signal, outlet load current, leakage current, breaker position
It sets, breaker protection act and alarm signal, electric energy quality signal；Breaker protection act and alarm signal include：Short-circuit event
Barrier, ground fault, overload, over-voltage, under-voltage, phase shortage, signal off zero；Electric energy quality signal includes：Current harmonics component, voltage
Deviation, three-phase unevenness.When intelligent residual current acts device for transmission line circuit short circuit and ground fault, protection act disconnects event
Hinder circuit.Disconnecting switch is mainly used for that feeder pillar source side being reliably isolated when power distribution station equipment or line fault maintenance, and
Guarantee the safety of service work with apparent cut-off point.
One-in-and-two-out, one into three also can be used out for cable branch box and one into four goes out structure.
Based on the same inventive concept, the present invention also provides a kind of operation method of intelligent low-pressure cable branch box, below
It is illustrated.
Design method provided by the invention includes：Intelligent monitoring terminal acquisition in intelligent low-pressure cable branch box is kept apart
The operation data of the position signal of pass, the status signal of chamber door travel switch and intelligent residual current action breaker；Intelligence prison
It surveys terminal analysis processing position signal, status signal and operation data and obtains high frequency carrier, high frequency carrier signal of communication passes through low
The output of the piezoelectricity line of force.
Intelligent monitoring terminal acquires the position signal of disconnecting switch, including：DI acquisition module in intellectual monitoring end passes through
Control cable is connected with disconnecting switch and obtained high frequency carrier respectively, acquires the position signal and intelligent low-pressure electricity of disconnecting switch
The door opening or closing status signal of cable feeder pillar.
Intelligent monitoring terminal analysis processing position signal, status signal and operation data obtain high frequency carrier, high frequency carrier
Signal of communication is exported by low-voltage power line, including：RS485 communication module in intelligent monitoring terminal receives intelligent residual current
The operation data that RS485 communication interface exports in action breaker；The disconnecting switch of DI module acquisition in intelligent monitoring terminal
Position signal, chamber door travel switch status signal；CPU module in intelligent monitoring terminal is to operation data, disconnecting switch
Position signal and the status signal of the chamber door travel switch analyzed, send analysis result in intelligent monitoring terminal
First carrier module；First carrier module receives the analysis of CPU module output as a result, analysis result obtains high frequency load through processing
Communications signal and after being loaded into low-voltage power line, the intelligent distribution transformer terminals being sent in platform area distribution transforming comprehensive distribution box.
It should be understood by those skilled in the art that, embodiments herein can provide as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the application
Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the application, which can be used in one or more,
The computer program implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) produces
The form of product.
The application is referring to method, the process of equipment (system) and computer program product according to the embodiment of the present application
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Finally it should be noted that：The above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof, institute
The those of ordinary skill in category field can still modify to a specific embodiment of the invention referring to above-described embodiment or
Equivalent replacement, these are applying for this pending hair without departing from any modification of spirit and scope of the invention or equivalent replacement
Within bright claims.
Claims (14)
1. the enter line side of a kind of intelligent low-pressure cable branch box, the intelligent low-pressure cable branch box passes through power cable and synthesis
The low-pressure line-outgoing switch of distribution box is connected, and the outgoing line side of the intelligent low-pressure cable branch box passes through the power cable and user
Centralized measure electricity box are connected, which is characterized in that including：Intelligent monitoring terminal, main bus-bar, disconnecting switch and its auxiliary switch, intelligence
It can residual current action breaker and chamber door travel switch；
The intelligent monitoring terminal is connected by low-voltage power line with the power cable of isolating switch power side；
The auxiliary switch and the intelligent low-pressure cable point that the intelligent monitoring terminal passes through control cable and the disconnecting switch
The chamber door travel switch of branch case is connected；
One end of the main bus-bar is connected with the load side of the disconnecting switch, the other end of the main bus-bar and at least two institutes
Intelligent residual current action breaker is stated to be connected；
The disconnecting switch auxiliary switch is used to indicate the position signal of the disconnecting switch；
The chamber door travel switch is used to indicate the door opening or closing state of the intelligent low-pressure cable branch box.
2. intelligent low-pressure cable branch box as described in claim 1, which is characterized in that the intelligent monitoring terminal includes：CPU
Module, RS485 communication module, DI acquisition module and first carrier module；
The RS485 communication module is connected with the intelligent residual current action breaker, and it is dynamic to acquire the intelligent residual current
Make the operation data of each branched line of breaker；
The DI acquisition module acquires the position signal and intelligent low-pressure electricity of the disconnecting switch using the control cable
The open and-shut mode signal of cable feeder pillar；
The CPU module receives the position signal and the open and-shut mode signal of the operation data, the disconnecting switch, to institute
There is acquisition signal to be analyzed, analysis result is sent to the first carrier module；
The first carrier module receives the analysis of the CPU module as a result, obtaining high frequency carrier signal of communication through processing and adding
After being loaded in low-voltage power line, and the intelligent distribution transformer terminals being installed in the comprehensive distribution box are transmitted to by power cable.
3. intelligent low-pressure cable branch box as claimed in claim 2, which is characterized in that the intelligent residual current movement open circuit
Device includes：RS485 communication interface；
The intelligent residual current action breaker is connected by the RS485 communication interface with the RS485 communication module；
The intelligent residual current action breaker acquires and includes using the operation data that RS485 communication interface exports：Main mother
The voltage signal of line；The position signal of the intelligent residual current action breaker；Load current, leakage current in outlet have
Function power, reactive power, power factor, electric energy quality signal, short circuit, ground connection, overload, over-voltage, under-voltage, phase shortage and letter off zero
Number.
4. intelligent low-pressure cable branch box as claimed in claim 3, which is characterized in that
The electric energy quality signal includes：The voltage deviation of current harmonics component, tri-phase unbalance factor signal and the main bus-bar
Signal.
5. intelligent low-pressure cable branch box as described in claim 1, which is characterized in that the intelligent monitoring terminal further includes：
Power module；
The power module is equipped with super capacitor as backup power supply；
When low-voltage network breaks down, and the intelligent monitoring terminal loses main working power, the seamless throwing of super capacitor
Enter.
6. a kind of operation method of intelligent low-pressure cable branch box, which is characterized in that including：
Position signal, the intelligent low-pressure of intelligent monitoring terminal acquisition disconnecting switch in the intelligent low-pressure cable branch box
The branched line operation data of door opening or closing status signal and intelligent residual current the action breaker acquisition of cable branch box；
The intelligent monitoring terminal analysis handles the position signal, the door opening or closing status signal and the branch line road transport
Row data obtain high frequency carrier signal of communication, after the high frequency carrier signal of communication loads on low-voltage power line, pass through electric power electricity
Cable will be output to the distribution transformer terminals being set in platform area distribution transforming comprehensive distribution box.
7. operation method as claimed in claim 6, which is characterized in that the position of the intelligent monitoring terminal acquisition disconnecting switch
Signal, including：
DI acquisition module in the intellectual monitoring end by control cable respectively with the auxiliary switch of the disconnecting switch and institute
The chamber door travel switch for stating intelligent low-pressure cable branch box is connected, and position signal and the intelligence for acquiring the disconnecting switch are low
The door opening or closing status signal of voltage cable feeder pillar.
8. operation method as claimed in claim 7, which is characterized in that the intelligent monitoring terminal analysis handles the position letter
Number, the status signal and the operation data obtain high frequency carrier, the high frequency carrier signal of communication passes through low-voltage power line
Output, including：
It is logical that RS485 communication module in the intelligent monitoring terminal receives RS485 in the intelligent residual current action breaker
Believe the operation data of interface output；
The position signal of disconnecting switch of DI module acquisition in the intelligent monitoring terminal, the state of chamber door travel switch are believed
Number；
The position signal and the case of CPU module in the intelligent monitoring terminal to the operation data, the disconnecting switch
The status signal of door travel switch is analyzed, and sends the first carrier mould in the intelligent monitoring terminal for analysis result
Block；
Described in the first carrier module receives the analysis of CPU module output as a result, the analysis result obtains through processing
High frequency carrier signal of communication and after being loaded into the low-voltage power line, is sent to through power cable set on platform area distribution transforming overall power distribution
Intelligent distribution transformer terminals in case.
9. a kind of intelligent distribution area, which is characterized in that including：Intelligent low-pressure cable branch box, comprehensive distribution box, centralized measure
Electricity box and power cable；
The enter line side of the intelligent low-pressure cable branch box is connected using the power cable with the comprehensive distribution box, by high frequency
Multicarrier communication signal is transferred to the comprehensive distribution box；
The outgoing line side of the intelligent low-pressure cable branch box utilizes the power cable and at least two centralized measure electricity box
It is connected.
10. intelligent distribution area as claimed in claim 9, which is characterized in that the comprehensive distribution box, including：Intelligent distribution transforming
Terminal, disengaging wiretap and main bus-bar；
The enter line side of the intelligent low-pressure cable branch box is connected using power cable with the outlet switch of the comprehensive distribution box；
The input terminal of the second carrier module is connected with the main bus-bar in the intelligence distribution transformer terminals.
11. intelligent distribution area as claimed in claim 10, which is characterized in that
The input terminal of second carrier module is connected with the main bus-bar by low-voltage power line；
Second carrier module acquires and handles the intelligent low-pressure cable branch box and carried by the high frequency that power cable transmits
Communications signal.
12. intelligent distribution area as claimed in claim 11, which is characterized in that
The intelligent low-pressure cable branch box is gone out using One In and Two Out, one into three or one into four goes out structure.
13. intelligent distribution area as claimed in claim 9, which is characterized in that
When intelligent low-pressure cable branch box work, the intelligence in outlet in the intelligent low-pressure cable branch box is surplus
Aftercurrent action breaker, by the voltage of main bus-bar, the load current of outlet, electric leakage in the intelligent low-pressure cable branch box
Stream, active power, reactive power, power factor and electric energy quality signal pass through the intelligent residual current action breaker
RS485 interface is sent to the intelligent monitoring terminal of the comprehensive distribution box；
When intelligent low-pressure cable branch box maintenance, the disconnecting switch in the intelligent low-pressure cable branch box must divide
Live part is reliably isolated in lock, to guarantee the safety of service personnel and equipment.
14. intelligent distribution area as claimed in claim 9, which is characterized in that further include：
When short circuit or ground fault occur for the branched line of the intelligent low-pressure cable branch box, the intelligent residual current is dynamic
Make breaker and carry out protection act separating brake, and intelligent monitoring terminal is sent by RS485 interface by protection signal；
When there is overload, over-voltage, under-voltage, phase shortage or failure off zero in the branched line of the intelligent low-pressure cable branch box,
The intelligent residual current action breaker exports the intelligent distribution transforming of alarm signal to the comprehensive distribution box using RS485 interface
Terminal.
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| CN113394728A (en) * | 2021-05-07 | 2021-09-14 | 天津市渤海新能科技有限公司 | Intelligent branch box |
| CN114094452A (en) * | 2021-11-18 | 2022-02-25 | 安徽广远智能电力装备制造有限公司 | All-insulated intelligent thing allies oneself with horizontal integrative high pressure combination of thing becomes |
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