CN205265349U - Little electric wire netting intelligence measurement and control device - Google Patents
Little electric wire netting intelligence measurement and control device Download PDFInfo
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- CN205265349U CN205265349U CN201520775152.9U CN201520775152U CN205265349U CN 205265349 U CN205265349 U CN 205265349U CN 201520775152 U CN201520775152 U CN 201520775152U CN 205265349 U CN205265349 U CN 205265349U
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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
- 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
- Y04S40/124—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 wired telecommunication networks or data transmission busses
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- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The utility model provides a little electric wire netting intelligence measurement and control device, includes power supply plug, CPU plug -in components, communication plug -in components, alternating -current measurement plug -in components, opens plug -in components, leaves plug -in components, man -machine interface and keyboard. Open plug -in components and leave plug -in components and all carry out the information interaction through internal bus and CPU plug -in components. The CPU plug -in components pass through the CAN bus with man -machine interface and keyboard plug -in components and realize the information interaction, pass through the ethernet with little electric wire netting monitored control system and realize the information interaction, pass through the internal bus with the communication plug -in components realizing the information interaction. The communication plug -in components RS485 and ethernet interface has to satisfy with little electric wire netting measurement and control device and little grid system in other equipment to the requirement of interface kind and quantity when communicating by letter. Power supply plug support to hand over, the power supply of direct current 220V.
Description
Technical field
The utility model relates to a kind of micro-electrical network intelligent controlling device, particularly relates to one and is applied to the micro-grid monitoring system of low pressureMicro-electrical network intelligent measuring and control device.
Background technology
In the field that relates to new forms of energy application, the micro-electrical network of new forms of energy has represented future source of energy development trend.
Traditional micro-grid monitoring system is in order to realize many times confessions, electricity consumption line current, voltage analog collection, and panel switches are establishedBack-up, closing position state acquisition and point, close a floodgate and control, every loop line road all need to configure multiple function singlenesses measuring instrument,Relay etc. Because the measuring and controlling equipment of micro-grid monitoring system application is of a great variety, manufacturer is many, communication protocol again different,Cause system integration complexity, system debug efficiency is low, the cycle is long, and operation after system maintenance work amount also large, have a strong impact onThe stability of micro-grid monitoring system operation, can not meet the micro-power grid construction of fast-developing new forms of energy to micro-electrical network intelligent monitoringRequirement.
Utility model content
The utility model is many for current micro-grid monitoring system measuring and controlling equipment, level of integrated system is low, debugging efficiency is low, the cycle is long,The deficiency of the aspects such as system operation maintenance complexity, fluctuation of service, proposes a kind of micro-electrical network intelligent measuring and control device.
The utility model integrates the several functions such as protection, measurement, control, monitoring, communication, logout, can be to micro-The of acs such as the interior many times confessions of network system, electricity consumption line current, voltage, power, power factor, frequency carry out measurements and calculations,Gather each loop line circuit breaker, isolating switch, contactor position signalling and micro-electrical network energy-storage system batteries alarm signal;The utility model and micro-power system monitor coordinate with EMS, realize each loop line circuit breaker, contactor point, close controlFunction etc.
For reaching above object, the utility model is taked following technical scheme:
A kind of micro-electrical network intelligent measuring and control device, comprise power insert, CPU card, communication plug-in unit, AC measurment plug-in unit, open intoPlug-in unit, output plug-in unit, man-machine interface and keyboard.
Described opens into plug-in unit and outputs plug-in unit and all carry out information interaction by internal bus and CPU card.
Described CPU card and man-machine interface and keyboard plug-in unit are realized information interaction by CAN bus, with micro-grid monitoring systemRealize information interaction, realize information interaction with communication plug-in unit by internal bus by Ethernet.
Described communication plug-in unit has RS485 and Ethernet interface, with meet with micro-electric network measuring and controlling device and micro-grid system in itsThe requirement of docking port kind and quantity when his equipment communicates.
Described power insert is supported AC and DC 220V power supply.
Many in order to tackle micro-grid system operational mode, the actual conditions of control switch logic complexity, the micro-electrical network intelligence of the utility modelCan measure and control device embed logic programmable software module, realize control logic online or off-line editing and amendment, replaced tradition byRelay and hundreds and thousands of the control logics that wire forms, both convenient, flexible, reliability also improves greatly.
For the micro-grid system that adapts to different scales to each time for electric line service data, as voltage, current analog amount, openPass equipment divides, the demand of closing position state acquisition and divide-shut brake control, the micro-electrical network intelligent measuring and control device of the utility model hardwareAdopt the thinking of modularized design. The main plug-in unit of the micro-electrical network intelligent measuring and control device of this utility model comprises: power insert, CPUPlug-in unit, communication plug-in unit, AC measurment plug-in unit, open into plug-in unit, output plug-in unit, man-machine interface and keyboard etc.
Open into plug-in unit and output plug-in unit and all carry out information interaction by internal bus and CPU card; CPU card and man-machine interfaceRealize information interaction with keyboard plug-in unit by CAN bus, CPU card and micro-grid monitoring system are realized information by EthernetAlternately, realize information interaction with communication plug-in unit by internal bus. Communication plug-in unit has RS485 and Ethernet interface, to meetThe requirement of docking port kind and quantity when other equipment communicate in micro-electric network measuring and controlling device and micro-grid system; In addition, instituteStating micro-electric network measuring and controlling disposes power insert and can support AC and DC 220V power supply.
Each pin function brief introduction is as follows:
(1) CPU card
CPU card adopts high speed digital signal processor DSP, is responsible for low pressure micro-grid system and hands over into and out of line current, voltageStream sampling, calculating; Every CPU card can be processed 42 road ac analog inputs; CPU card can provide 2 RS485Mouthful, 2 10/100M Ethernet interfaces, 1 GPS interface, be responsible for communicating by letter with micro-grid monitoring system, complete remote signalling, remote measurement,The forwarding capability of remote control and remote regulating.
(2) AC measurment plug-in unit
Every block of AC measurment plug-in unit can gather 12 road ac analogs. Ac analog conversion after the isolation of voltage/current transformerFor voltage signal, after filtering, AD sampling, transfer to CPU card DSP by internal bus and process. Micro-electrical network intelligenceMeasure and control device can be supported at most 4 blocks of AC measurment plug-in units.
(3) open into plug-in unit
Open into plug-in card configuration You16 road intake for every, through photoelectricity isolation and overvoltage protection measure, more defeated through data bufferEnter to the FPGA opening into plug-in unit, eliminated on-off state wrong report, avoided broken by lightning device, improved the reliability of device.Micro-electrical network intelligent measuring and control device can be supported at most 4 and open into plug-in unit.
(4) output plug-in unit
Outputing plug-in unit for every has 8 amounts of outputing, and through photoelectricity isolation output, has improved reliability and anti-interference that output is controlled,Output contact capacity is: DC24V 16A or AC250 16A, major function is to realize contactor in micro-electrical network, open circuitThe divide-shut brake control of the switchgears such as device. Micro-electrical network intelligent measuring and control device can be supported at most 4 and output plug-in unit.
(5) man-machine interface and keyboard plug-in unit
Man-machine interface and keyboard plug-in card configuration LCD LCDs, friendly interface, Chinese character show, can grasp by keyboardMake inquiry unit image data and carry out the instruction of switch breaking-closing operating.
(6) communication plug-in unit
Communication plug-in unit provides 4 road 10M/100M Ethernet interfaces, 4 road RS485 interfaces, 2 road RS232 interfaces, 1 road CANInterface is with other devices communicatings and networking in realization and micro-electrical network.
3 RS232 mouths, 2 RS485 mouths, 2 100/10BASE-T Ethernet interfaces, 1 GPS interface, 1 are providedIndividual CAN interface, can pass through plug-in Modem or Ethernet and master station communication, can with control centre or sub-station communication, uploadThe information that distribution terminal gathers, accepts guidance command.
(7) power insert
Power insert is supported the input of AC220V or DC220V external power source, power insert inner by power module andDC/DC direct current transducer generation+5V, ± 12V ,+24V voltage, provide working power for installing other plug-in units.
The utility model course of work is:
First the AC measurment plug-in unit by micro-electrical network intelligent measuring and control device gather low pressure micro-grid system for the electric current of electric line,Voltage signal, wherein single-phase the or three-phase bus terminal of 220/380V connects the AC measurment plug-in unit of micro-electrical network intelligent measuring and control devicePort; By micro-electrical network intelligent measuring and control device open into plug-in unit collection for, electric line panel switches divide, closing position signal; LogicalCross micro-electrical network intelligent measuring and control device communication plug-in unit and gather other measure and control devices in micro-electrical network and service data that can communication equipment; ThenThe AC measurment plug-in unit of micro-electrical network intelligent measuring and control device, open all data that gather into plug-in unit, communication plug-in unit and pass through internal busTransfer to CPU card, carry out uniform data arrangement and analysis by the microprocessor of CPU card. CPU card disposes etherNetwork interface, can be uploaded image data and be received micro-grid monitoring system by micro-grid monitoring system of Ethernet interface superiorControl instruction, and be forwarded to the plug-in unit of outputing of micro-electric network measuring and controlling device, realizes micro-electrical network for, electric line distribution switchgearDivide-shut brake control. All data of micro-electric network measuring and controlling device can show at the LCD liquid crystal display of man-machine interface and keyboard plug-in unit, sameTime auxiliary keyboard can inquire about Menu realization service datas at different levels inquiry and system parameter setting, also can be by menu in micro-electrical networkSwitchgear is realized divide-shut brake control on the spot.
The micro-electric network measuring and controlling device of the utility model can be optimized the framework of micro-grid monitoring system, greatly reduces micro-grid monitoring system and surveysControl equipment usage quantity, investment cost and manufacturer's quantity, improved micro-grid monitoring system integrated level and debugging efficiency, reducesDebugging work load and debugging cycle, reduced system operation and maintenance cost, significantly improved the operation of micro-grid monitoring system steadyQualitative, be the desirable intelligent measuring and control device of the micro-electrical network of new forms of energy.
In addition, consider that the micro-electrical network intelligent measuring and control device of the utility model adopts Miniaturization Design in when design, adapting at distribution box orThe convenience that the tight spaces such as power distribution cabinet are installed,
Brief description of the drawings
Fig. 1 hardware circuit diagram of the present utility model;
Fig. 2 a kind of state diagram that uses of the present utility model;
The how sub micro-electrical network network state figure of Fig. 3 one of the present utility model.
Detailed description of the invention
Further illustrate the utility model below in conjunction with the drawings and the specific embodiments.
As shown in Figure 1, the utility model is applied to micro-electrical network intelligent measuring and control device of low-voltage network, comprises that power insert, CPU insertPart, communication plug-in unit, AC measurment plug-in unit, open into plug-in unit, output plug-in unit, man-machine interface and keyboard etc.
Annexation between the each plug-in unit of micro-electrical network intelligent measuring and control device:
Open into plug-in unit, output plug-in unit and all carry out information interaction by internal bus and CPU card; CPU card and man-machine interfaceWith keyboard plug-in unit by CAN bus realize information interaction, with micro-grid monitoring system by Ethernet realize information interaction, withCommunication plug-in unit is realized information interaction by internal bus. Communication plug-in unit has RS485 and Ethernet interface, to meet and micro-electrical networkThe requirement of docking port kind and quantity when other equipment communicate in measure and control device and micro-grid system; In addition, micro-electric network measuring and controllingDevice disposes power insert, can support AC and DC 220V power supply.
The each pin function of micro-electrical network intelligent measuring and control device:
(1) CPU card
CPU card adopts high speed digital signal processor DSP, and the responsible micro-electrical network 0.4kV of low pressure line current, voltage exchange and adoptsSample, calculating; CPU card can be processed 42 road ac analog inputs; CPU card can provide 2 RS485 mouths, 2 10/100MEthernet interface, 1 GPS interface, responsible distribution terminal are communicated by letter with main station system and device communication plug-in unit, complete remote signalling, distantThe forwarding capability of survey, remote control and remote regulating.
(2) AC measurment plug-in unit
Every block of AC measurment plug-in unit can gather 12 road ac analogs. Ac analog conversion after the isolation of voltage/current transformerFor voltage signal, after filtering, AD sampling, transfer to CPU card DSP by internal bus and process. Micro-electrical network intelligenceMeasure and control device can be supported at most 4 blocks of AC measurment plug-in units.
(3) open into plug-in unit
Open into plug-in card configuration You16 road intake for every and isolate and overvoltage protection measure through photoelectricity, then input through data bufferGive FPGA, eliminated on-off state wrong report, avoided broken by lightning device, improved the reliability of device. Micro-electrical network intelligenceMeasure and control device can be supported at most 4 and open into plug-in unit.
(4) output plug-in unit
Outputing plug-in unit for every has 8 amounts of outputing through photoelectricity isolation output, has improved reliability and anti-interference that output is controlled, defeatedGoing out contact rating is: DC24V 16A or AC250 16A. Configurable 4 of micro-electrical network intelligent measuring and control device is outputed plug-in unit.Micro-electrical network intelligent measuring and control device can be supported at most 4 and output plug-in unit.
(5) man-machine interface and keyboard plug-in unit
Man-machine interface and keyboard plug-in card configuration LCD LCDs, friendly interface, Chinese character show, can grasp by keyboardMake inquiry unit image data and carry out the instruction of switch breaking-closing operating.
(6) communication plug-in unit
Communication plug-in unit provides 4 road 10M/100M Ethernet interfaces, 4 road RS485 interfaces, 2 road RS232 interfaces, 1 road CANInterface is with other devices communicatings and networking in realization and micro-electrical network.
3 RS232 mouths, 2 RS485 mouths, 2 100/10BASE-T Ethernet interfaces, 1 GPS interface, 1 are providedIndividual CAN interface, can pass through plug-in Modem or Ethernet and master station communication, can with control centre or sub-station communication, uploadThe information that distribution terminal gathers, accepts guidance command.
(7) power insert
Power insert is supported the input of AC220V or DC220V external power source, power insert inner by power module andDC/DC direct current transducer generation+5V, ± 12V ,+24V voltage, provide working power for installing other plug-in units.
The operation principle of the micro-electrical network intelligent measuring and control device of the utility model is:
Micro-electric network measuring and controlling device gathers line current and busbar voltage analog signals, the electric current of each circuit by AC measurment plug-in unitAfter can being converted to data signal by the A/D chip of AC measurment plug-in card configuration with busbar voltage analog quantity, pass by internal busTransport to CPU card; Receive through the control and protection such as line-breaker, the contactor switch of photoelectricity isolation and establish by opening into plug-in unitStandby auxiliary contact point, close position signalling, then transfer to CPU card by internal bus. All these are changed through A/DData signal and the switching value signal of outside input unify Storage and Processing by CPU card, be then uploaded to by EthernetMicro-grid monitoring system, simultaneously CPU also can receive the control instruction that micro-grid monitoring system issues and be forwarded to and output plug-in unitAnd communication plug-in unit, complete the control etc. that divides, closes a floodgate to the each loop line circuit breaker of micro-grid system, contactor. In addition, forIn micro-grid system, other equipment that possess Ethernet or RS485 communication interface communicate, and it is special that the utility model providesCommunication plug-in unit, disposes 4 road 10M/100M Ethernet interfaces, 4 road RS485 interfaces, 2 road RS232 interfaces, 1 road CANInterface, to meet the requirement of access miscellaneous equipment to communication interface type and quantity. Man-machine interface and keyboard plug-in card configuration have LCDDisplay screen and keyboard, all signal measurement, parameter setting values, operation note, statistic record, running status, time etc. are allCan on LCD, show.
As shown in Figure 2, the electric current on the each loop line of micro-grid system road accesses micro-electrical network intelligent measuring and control device through current transformer and exchanges and insertPart, 220/380V is single-phase or the micro-electric network measuring and controlling device AC measurment plug-in unit of the direct access of three-phase bus voltage is realized electric current, voltage is surveyedAmount; Opening into plug-in unit by control cables and each circuit control and protection switchgear of the micro-electrical network intelligent measuring and control device of micro-grid systemOperating mechanism connect, gather each switchgear point, closing position signal. The communication plug-in unit of micro-electrical network intelligent measuring and control device is logicalCross in Ethernet interface or serial ports and micro-electrical network other micro-electrical network intelligent measuring and control device and possess the equipment of communication interface as contrary in photovoltaicBecoming device, double mode inverter (PCS) etc. communicates. The CPU card of micro-electrical network intelligent measuring and control device is by Ethernet interface and micro-Grid monitoring system communication realizes information interaction, and CPU card is uploaded micro-grid system service data to micro-grid monitoring system, withTime can receive the control command that micro-grid monitoring system issues, and control instruction is forwarded to and outputs plug-in unit, realize for electric lineThe control and protection such as breaker, contactor switchgear point, closing operation.
As shown in Figure 3, the utility model separate unit can be realized monitoring and the control of each equipment in the micro-electrical network of single son, and many playscripts with stage directions are realWith novel monitoring and the control that realizes the micro-electrical network of multiple sons. The micro-electric network measuring and controlling device of each son completes whole micro-grid system jointlyMonitor task, can intercom between the micro-electric network monitoring device of each son in addition mutually, is the coordination control between the micro-electrical network of son and economic fortuneRow provides support.
The utility model, applicable to the micro-grid system of access low-voltage network, improves the gentle fortune of Automated water of micro-grid systemThe reliability of row.
Claims (3)
1. a micro-electrical network intelligent measuring and control device, is characterized in that, described micro-electrical network intelligent measuring and control device comprises power insert, CPU card, communication plug-in unit, AC measurment plug-in unit, opens into plug-in unit, outputs plug-in unit, man-machine interface and keyboard;
Described opens into plug-in unit and outputs plug-in unit and all carry out information interaction by internal bus and CPU card;
Described CPU card and man-machine interface and keyboard plug-in unit are realized information interaction by CAN bus, realized information interaction, are realized information interaction with communication plug-in unit by internal bus by Ethernet with micro-grid monitoring system;
Described communication plug-in unit has RS485 and Ethernet interface, the requirement of docking port kind and quantity when meeting in micro-electric network measuring and controlling device and micro-grid system that other equipment communicate;
Described power insert is supported AC and DC 220V power supply.
2. according to micro-electrical network intelligent measuring and control device claimed in claim 1, it is characterized in that,
Described CPU card is communicated by letter and is realized information interaction with micro-grid monitoring system by Ethernet interface, CPU card is uploaded micro-grid system service data to micro-grid monitoring system, receive the control command that micro-grid monitoring system issues simultaneously, and control instruction is forwarded to and outputs plug-in unit, realize for electricity consumption line-breaker, contactor point, closing operation;
Described AC measurment plug-in unit gathers 12 road ac analogs, and the ac analog gathering is converted to voltage signal after the isolation of voltage/current transformer, after filtering, AD sampling, transfers to CPU card processing by internal bus;
Opening into plug-in card configuration You16 road intake described in every, through photoelectricity isolation and overvoltage protection measure, then inputs to through data buffer the FPGA opening into plug-in unit and processes; Describedly drive the operating mechanism by control cables Yu Ge road control and protection switchgear into plug-in unit and connect, gather each switchgear point, closing position signal;
The plug-in unit of outputing described in every has 8 amounts of outputing, and through photoelectricity isolation output, realizes the divide-shut brake control to contactor, breaker in micro-electrical network;
Described man-machine interface and keyboard plug-in unit, can and carry out the instruction of switch breaking-closing operating by keyboard action queries device image data;
Described communication plug-in unit is realized with interior other the micro-electrical network intelligent measuring and control devices of micro-electrical network and is communicated and network with the equipment that possesses communication interface, with control centre of main website or sub-station communication, uploads the information that distribution terminal gathers, and accepts guidance command;
Described power insert is supported AC220V or the input of DC220V external power source, inner by power module and DC/DC direct current transducer generation+5V, ± 12V ,+24V voltage, for described micro-other plug-in units of electrical network intelligent measuring and control device provide working power.
3. according to micro-electrical network intelligent measuring and control device claimed in claim 1, it is characterized in that, the AC measurment plug-in unit of described micro-electrical network intelligent measuring and control device gathers electric current and the voltage signal of micro-grid system for electric line; Open into plug-in unit collection for electric line panel switches point, closing position signal; Communication plug-in unit gathers other measure and control devices in micro-electrical network and service data that can communication equipment; AC measurment plug-in unit, open all data that gather into plug-in unit and communication plug-in unit and transfer to CPU card by internal bus, carry out data preparation and analysis by the microprocessor of CPU card; CPU card is uploaded image data by micro-grid monitoring system of Ethernet interface superior and is received the control instruction of micro-grid monitoring system, and be forwarded to the plug-in unit of outputing of micro-electric network measuring and controlling device, realize the divide-shut brake control of micro-electrical network for, electric line distribution switchgear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520775152.9U CN205265349U (en) | 2015-10-08 | 2015-10-08 | Little electric wire netting intelligence measurement and control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520775152.9U CN205265349U (en) | 2015-10-08 | 2015-10-08 | Little electric wire netting intelligence measurement and control device |
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| Publication Number | Publication Date |
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| CN205265349U true CN205265349U (en) | 2016-05-25 |
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| CN201520775152.9U Expired - Fee Related CN205265349U (en) | 2015-10-08 | 2015-10-08 | Little electric wire netting intelligence measurement and control device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106300666A (en) * | 2016-08-26 | 2017-01-04 | 南京国电南自电网自动化有限公司 | A kind of Intelligent ring network case using FPGA analog switch chip becomes measure and control device |
| CN108233537A (en) * | 2018-01-10 | 2018-06-29 | 云南电网有限责任公司电力科学研究院 | A kind of micro-capacitance sensor electric energy quality monitoring system, method |
| CN108362962A (en) * | 2018-02-05 | 2018-08-03 | 国网辽宁省电力有限公司 | Preprocess method in a kind of data set of more measure and control devices fusion |
| CN110935120A (en) * | 2019-12-13 | 2020-03-31 | 南京机电职业技术学院 | Transformer substation electric power system and fire extinguishing system information fusion interaction control device |
| CN112260239A (en) * | 2020-10-12 | 2021-01-22 | 南方电网数字电网研究院有限公司 | Chip compact relay protection device |
| CN112769227A (en) * | 2019-11-05 | 2021-05-07 | 长沙国通电力科技有限公司 | Intelligent distribution transformer protection measurement and control device based on 4G communication technology |
-
2015
- 2015-10-08 CN CN201520775152.9U patent/CN205265349U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106300666A (en) * | 2016-08-26 | 2017-01-04 | 南京国电南自电网自动化有限公司 | A kind of Intelligent ring network case using FPGA analog switch chip becomes measure and control device |
| CN108233537A (en) * | 2018-01-10 | 2018-06-29 | 云南电网有限责任公司电力科学研究院 | A kind of micro-capacitance sensor electric energy quality monitoring system, method |
| CN108362962A (en) * | 2018-02-05 | 2018-08-03 | 国网辽宁省电力有限公司 | Preprocess method in a kind of data set of more measure and control devices fusion |
| CN112769227A (en) * | 2019-11-05 | 2021-05-07 | 长沙国通电力科技有限公司 | Intelligent distribution transformer protection measurement and control device based on 4G communication technology |
| CN110935120A (en) * | 2019-12-13 | 2020-03-31 | 南京机电职业技术学院 | Transformer substation electric power system and fire extinguishing system information fusion interaction control device |
| CN112260239A (en) * | 2020-10-12 | 2021-01-22 | 南方电网数字电网研究院有限公司 | Chip compact relay protection device |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160525 Termination date: 20211008 |
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| CF01 | Termination of patent right due to non-payment of annual fee |