CN1238823C - Network controllable curcuit break electric meter reading transcriber and electric unit network terminal - Google Patents
Network controllable curcuit break electric meter reading transcriber and electric unit network terminal Download PDFInfo
- Publication number
- CN1238823C CN1238823C CNB031126146A CN03112614A CN1238823C CN 1238823 C CN1238823 C CN 1238823C CN B031126146 A CNB031126146 A CN B031126146A CN 03112614 A CN03112614 A CN 03112614A CN 1238823 C CN1238823 C CN 1238823C
- Authority
- CN
- China
- Prior art keywords
- network
- ammeter
- circuit
- meter
- cebus
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Classifications
-
- 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
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
-
- 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
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
Landscapes
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The present invention relates to a network controllable broken circuit electric meter reading transcriber which has a CPU microprocessor and an interface of a count pulse induction type mechanical electric meter or a fully-electronic electric meter, wherein the CPU microprocessor is connected with a network by modulating a demodulator; the interface is connected with CPU through a count pulse shaping circuit; a data memory is connected to the CPU; an electric current mutual induction sensor, an ionic switch and a detaching switch for cutting off a power supply circuit are arranged on the power supply circuit; the CPU is connected with the detaching switch through an optical isolator, controlled silicon and an electromagnetic coil. The present invention is suitable for various standard electric meters which are currently used has the advantage of low popularization cost. The present invention can be used for the automatic reading transcription of a precharged electric meter, user breaker control, terminal meter box system fault examination, etc. through a CEBus network. An 'electric unit network terminal ' meter box has a plurality of CEBus network connection ports, so CEBus network gas meters, and CEBus network water meters can be connected. The present invention is very convenient in use.
Description
Technical field
The invention belongs to network technology, relate to a kind of network controlled ammeter ' s reading meter device that opens circuit, or title " the controlled ammeter ' s reading meter device that opens circuit of CEBus network intelligence type ", and the power unit network terminal that utilizes this meter-copy device, pulse ammeter and instrument box to constitute, this network terminal is embodied as a kind of " power unit network terminal distribution ammeter box ".
Background technology
The CEBus network abbreviates instrument communication bus Meter-Bus as.U.S. Electronic IndustriesAssociation has formally issued the electrical equipment networking standard CEBus (Consumer Electronics Bus, home bus) at family, numbering EIA-600; After revise through several times again, and the subordinate who always is subjected to EIA organizes wideling popularize of Consumer Electronics Manufactures Association.CEBus has obtained American National Standards Institute to be admitted.Along with the exploitation that the Internet technology is progressively used towards household appliances control, each state is all inquired in the actual national conditions according to this country, research and development meet the household appliances networking product that inserts the Internet.Along with the development that China's science and technology and urban construction are advanced by leaps and bounds, modern information industry will become the principal market that each big and medium-sized cities accelerated development " digital city " of China forms China's information industry.In development " digital city ", the networking construction of residential quarters (community) and " system for distribution network of power automated network platform " are one of very important engineerings in China's urban IT application project.
How conventional art is combined with modern microelectric technique, computer technology, network technology and software engineering, " network controlled open circuit ammeter ' s reading meter device " that form good, reliable, durable, low-power consumption, safety is the critical product that CEBus networking three tables are copied and accepted system stability, reliability service automatically.
00135437.X number Chinese invention patent application discloses the check meter Automatic meter reading system of bridge and water, electricity, gas table of a kind of CEBus type, its job step is: convert the mechanical count of table tools such as water, electricity, coal gas to magnetic-pulse, convert electric signal again to, intellectualized module converts the electrical signal to the digital signal storage, and the adding address code, pass in the network by the CEBus bridge.Network and components of system as directed can directly drop into actual use in this scheme.CEBus network intelligence type ammeter in this patented claim, its structure has: the driver plate inside of electric energy meter is provided with a minidisk, and minidisk forms local magnetic field (180
0), and be installed on the driver plate main shaft, according to the electric energy meter of different model, minidisk can be installed in above the driver plate (main shaft is vertical) or below.On the pedestal in electric energy meter intelligent object is installed, one Magnetic Sensor is arranged in intelligent object and contain the counting and detecting device of microprocessor, totally-enclosed intelligent object is installed on the pedestal in electric energy meter, and totally-enclosed intelligent object is connected with CEBus network feeder line.
Above technical scheme is when dropping into actual the use, need to adopt the intelligent integral ammeter that can carry out the non electrical quantity conversion, just need the ammeter table tool of China's existing standard is reequiped design, can run into the obstruction of factors such as China's ammeter table tool production standard and improvement cost.Simultaneously, above technical scheme can't satisfy the needs that electric energy user lightning protection, anti-electricity-theft, earth leakage protection, network controlled are opened circuit fully, so needing the technical scheme of further refinement replenishes, and the function of strengthening this technical scheme, for example: increase the reverse control function of network, cut off the electricity supply where necessary; For another example: increase functions such as anti-electricity-theft, its use value is strengthened, be beneficial to promote.
Summary of the invention
Be to solve one of " system for distribution network of power automated network platform " great base application networking end product, the invention provides a kind of network controlled that creepage protection function arranged open circuit ammeter ' s reading meter device and lightning protection thereof, anti-electricity-theft user terminal distribution ammeter box.The standard of this system product is carried out and is met GB6829-95 and standards such as IEC898-87, IEC755.The present invention is further expanding and refinement above-mentioned technology path, alternative mechanism as intellectualized module, the controlled ammeter ' s reading meter device that opens circuit of present networks can receive the output of existing pulse induction formula machinery ammeter and full electronic ammeter, and the CEBus network communication interface is arranged.(twisted-pair feeder) can unify to insert CEBus network controlled open circuit ammeter ' s reading meter device, CEBus network intelligence moulded coal gas meter or CEBus network intelligence type water meter on a CEBus network service bus, and finish its data by the bridge of checking meter, senior management computer and copy and accept management function, to satisfy the needs that the most numerical table tool that uses at present enters network, and functions such as network remote control opens circuit are joined in this meter-copy device in the lump go, the power unit network terminal product that constitutes by this meter-copy device, pulse ammeter, instrument box.Its prioritization scheme of the power unit network terminal can also will prevent electric shock, electric leakage, stealing, overload protection, prevents thunderbolt, and this meter-copy device also can increase the infrared communication window, carries out the function of manual mode operation increase to use palmtop computer.
The present invention relates to a kind of " network controlled open circuit ammeter ' s reading meter device " structure is: earth leakage protection dropout switch test button A, the dropout switch handle B that powers on/cut off the power supply, infrared communication window C, 220VAC input end 1-3,220VAC output terminal 2-4, anti-electricity-theft instrument box sensor JK incoming end 5-6, ammeter pulse signal input terminal 7-9, instrument communication bus Meter-Bus port 8-10.Referring to accompanying drawing 1.
The scheme that the application finishes the foregoing invention task is: a kind of network controlled ammeter ' s reading meter device that opens circuit is provided, its structure is: be provided with the CPU microprocessor, this processor is connected with network by modulator-demodular unit, also be provided with the interface of count pulse induction type machinery ammeter or full electronic ammeter, interface is connected with CPU by the count pulse shaping circuit, also be connected with data-carrier store on the CPU, in smart circuit, be provided with the CEBus telecommunication circuit, be provided with the CEBus communication interface outward, power circuit is provided with the electric current mutual inductance transducer, the dropout switch of the ionic switch and the circuit of cutting off the electricity supply, CPU is through optoisolator spare, controllable silicon (SCR), solenoid is connected with the dropout switch.That is: the dropout switch can be controlled through optoisolator spare, controllable silicon (SCR), solenoid by CPU.Microprocessor mainly finish ammeter electric weight counting electric pulse characteristic judgement, collection, control and with the two-way communication of CEBus network.The effect of the sensor in the circuit is: when the door (open and close state) of the distribution ammeter box of the power unit network terminal changes state, can cause that all the signal of sensor changes, for the control of CPU provides foundation.The dropout switch can cut off power supply according to the instruction of CPU, and CPU only removes cut-offing instruction, the dropout switch state that just can restore electricity.Said in the scheme " being connected with network by modulator-demodular unit ", the IC4 modulator-demodular unit of use is a CEBus network service chip.The CEBus network also can be called for short the Meter-Bus communication network.
The present invention is by CEBus network (DCPL, direct current supply carrier communication form) realized checking meter of the automatic ammeter of prepaid, and carry out two-way communication by check meter bridge and administrative authority's computing machine, especially the distribution ammeter box of the power unit network terminal is controlled and is supervised in the open circuit work of ammeter ' s reading meter device to network controlled.
The power unit network terminal that the present invention relates to is meant; Pulse induction formula machinery ammeter or full electronic ammeter, the network controlled ammeter ' s reading meter device that opens circuit is installed in the distribution ammeter box, and the distribution ammeter box includes the anti-turn on sensor (ammeter, meter-copy device and sensor all are electrically connected) of instrument chamber door and combines.General designation: the power unit network terminal.(networked single subscriber terminal, networked dual user terminal and networked multiple users are arranged) solves distribution instrument box telecommunication network supervision problem, prevents the stealing network management.Referring to accompanying drawing 4.
The present invention has following prioritization scheme:
The prioritization scheme of active anti induction thunderbolt:, can install " initiatively anti induction thunder overvoltage protection device " module additional at " the controlled ammeter ' s reading meter device that opens circuit of network-type " 220VAC inlet wire incoming end.For example: every phase line incoming end all has " initiatively anti induction thunder overvoltage protection device " module in No. 01262801.8 disclosed anti induction thunder and lightning of patented claim road of China.Shown in the accompanying drawing 2.
Increase the prioritization scheme of far infrared control function: design has the infrared communication circuit in smart circuit, and be connected with the open circuit infrared communication window of ammeter ' s reading meter device peripheral hardware of network controlled, can increase the far-infrared communication control function: the infrared communication circuit carries out infrared communication by the open circuit infrared communication window and the hand-held set of ammeter ' s reading meter device of network controlled.
Be provided with leakage protection circuit simultaneously on " the controlled ammeter ' s reading meter device that opens circuit of network-type ", this circuit is connected with the electromagnetic trip isolating switch, makes the controlled ammeter ' s reading meter device that opens circuit of network-type have creepage protection function simultaneously.
With the network controlled of the present invention ammeter ' s reading meter device that opens circuit is the power unit network terminal that main body constitutes, be in the distribution instrument box, to be provided with multichannel CEBus network connection terminal, comprise for the CEBus network controlled connection terminal that ammeter ' s reading meter device, CEBus network intelligence controllable type gas meter, CEBus network intelligence controllable type water meter insert respectively that opens circuit.Can carry out three tables by the bridge of checking meter at a CEBus network-bus (being called for short instrument communication bus Meter-Bus) the access power unit network terminal and copy and accept management.Connect diagram referring to accompanying drawing 6 networks.
Above scheme also can be arranged to the meter-copy device and the power unit network terminal of two-phase electricity or three-phase electricity respectively, and that can satisfy two-phase ammeter and three-phase kilowatt-hour meter respectively copies and accepts management automatically.Be that said meter-copy device can be the network controlled of the two-phase electricity network controlled of ammeter ' s reading meter device or the three-phase electricity ammeter ' s reading meter device that opens circuit that opens circuit.The said power unit network terminal also can be the power unit network terminal of two-phase electricity or the power unit network terminal of three-phase electricity.
" the power unit network terminal " that " network controlled open circuit ammeter ' s reading meter device " provided by the invention and prioritization scheme form, be a kind of tallying with the national condition, and copy and accept the power unit network terminal that the system hardware platform is set up DCPL network communication structure automatically for China's water, electricity, gas.Wherein the DCPL network structure is a direct current power line carrier communication network, again as the supply network of magnitude of voltage below 24VDC.Should " network controlled open circuit ammeter ' s reading meter device " and ammeter separate design, with electronic counting and intelligent object circuit arrangement directly design in meeting " earth leakage circuit breaker " box of national installation code.And innovate a kind of networked remote user terminals distribution maintenance device, be called for short " the power unit network terminal ".This device has that ammeter is copied and accepted automatically, anti induction thunder superpotential, the anti-electricity-theft and controlled cut-out function of earth leakage protection.
Principal character of the present invention is:
1, ammeter and " network controlled open circuit ammeter ' s reading meter device " separate design, reliability height, function are many, combined and instant, make full use of existing ammeter, the transformation of table tool is easy, cost is low.
2, existing count pulse induction type machinery ammeter or full electronic ammeter can insert " network controlled open circuit ammeter ' s reading meter device ".
3, the power unit network terminal; Anti-overvoltage, anti-electricity-theft, earth leakage protection, overload protection, automatic data logging and the controlled cut-out function of network remote are arranged.
4, " network controlled open circuit ammeter ' s reading meter device " has infrared communication circuit and infrared communication window, and the palmcomputer of available standardsization carries out information bidirectional communication.
5, the composition of the power unit network terminal be by pulse induction formula machinery ammeter (or full electronic ammeter), network controlled open circuit the ammeter ' s reading meter device, have the sensor JK distribution instrument box that chamber door opens that has charge of the instruments and combine.Form standardized " the power unit network terminal " product.
6, a plurality of CEBus network communication interface connection terminals are arranged in " the power unit network terminal " casing, can insert CEBus network controlled open circuit ammeter ' s reading meter device, CEBus network intelligence moulded coal gas meter, CEBus network intelligence type water meter respectively, form three tables and copy and accept management function.This user terminal distribution ammeter box network construction form is referring to accompanying drawing 2, accompanying drawing 6.
" network controlled open circuit ammeter ' s reading meter device " that the application provides can adapt to two-phase, triphase induction type mechanical pulsing ammeter and the electronic electricity meter of the existing all size standard of generally using of China, and it is low to promote the use of cost.The design can realize prepaid ammeter automatic data logging, the control of user's isolating switch, the examination of the end instrument case system failure etc. by the CEBus network.Should in " the power unit network terminal " instrument box a plurality of CEBus network access ports be arranged,, use very convenient so also can insert CEBus networking gas meter, CEBus networking water meter.
Description of drawings
Fig. 1 is " network controlled open circuit ammeter ' s reading meter device " structural representation in the embodiment of the present application;
Fig. 2 is three-phase lightning protection, earth leakage protection " network controlled open circuit an ammeter ' s reading meter device " structural representation;
Fig. 3 is " network controlled open circuit ammeter ' s reading meter device " among the embodiment and pulse ammeter wiring diagram;
Fig. 4 is " network controlled open circuit ammeter ' s reading meter device " among the embodiment and power unit network terminal scheme of installation;
Fig. 5 is the circuit theory diagrams of " network controlled open circuit ammeter ' s reading meter device " among the embodiment;
Fig. 6 copies and accepts the network connection layout of system and device automatically for CEBus networking ammeter in the distribution automation;
Fig. 7 is the electrical schematic diagram of lightning protection ionic switch LZ.
Embodiment
Embodiment 1: the network controlled ammeter ' s reading meter device that opens circuit, be provided with the CPU microprocessor, this processor is connected with network by modulator-demodular unit, also be provided with the interface of count pulse induction type machinery ammeter or full electronic ammeter, interface is connected with CPU by the count pulse shaping circuit, also be connected with data-carrier store on the CPU, power circuit is provided with the dropout switch of electric current mutual inductance transducer, ionic switch and the circuit of cutting off the electricity supply, and CPU is connected with the dropout switch through optoisolator spare, controllable silicon, solenoid.Its circuit and kilowatt meter reading-out system comprise: the IC1 cpu circuit; IC2 count pulse shaping circuit; the IC3 storer; IC4 Meter-Bus telecommunication circuit; IC5 earth leakage protection chip; the IC6 mu balanced circuit, current transformer L, lightning protection ionic switch LZ, infrared communication circuit, dropout switch, pulse electricity meter, the bridge of checking meter, user terminal instrument box etc. are formed.With reference to Fig. 1, Fig. 2: " network controlled open circuit ammeter ' s reading meter device " product structure is respectively equipped with power connector end 1,3; Earth leakage protective device test button A, overload/outage dropout switch handle B, infrared communication window C, watt-hour meter splicing ear 7,9; Anti-electricity-theft instrument box splicing ear 5,6, and Meter-Bus telecommunication circuit splicing ear 8,10.Fig. 3, Fig. 4 represent the connection of each function instrument, parts or circuit.With reference to Fig. 5: main devices adopts little power consumption chip in circuit; wherein IC1 is that cpu chip is that core microprocessors, the IC4 of this circuit is that low-power consumption CEBus network communication modulation specialty chip, IC2 count pulse shaping circuit, IC3 are that pin-saving chip, IC5 earth leakage protection chip, IC6 mu balanced circuit, TD-HL are induction type machinery ammeter sensor, current transformer L, lightning protection ionic switch LZ, infrared communication circuit, dropout switch etc.Described cpu chip is MSP430 series (or P87LPC76X series) microprocessor.This core microprocessors, judgement collection, the JK sensor of mainly finishing ammeter electric weight counting electric pulse characteristic are the judgement of user terminal distribution ammeter box state, the control of circuit breaker tripping switch and data processing and storage, bidirectional data communication management and house dog control.The cpu chip serial communication interface links to each other by RXD, TXD, the infrared communication circuit of analog switch with IC4CEBus network communication modulation specialty chip.Described IC4 is a CEBus network communication modulation specialty chip, cpu chip carries out data read-write operation by RXD, the TXD that selects serial communication and CEBus network communication modulation specialty chip for use, P0.4, P0.5 are R/T control, CD is the modulated-analog signal test side, and be coupled on the CEBus grid line by the modulated-analog signal that non-polar MBU (12), MBU (13) will meet the ITU-TV2.3 standard, CEBus grid line function is on the one hand as network communication, provides circuit as electric power on the other hand.Described CEBus network communication is meant the bridge of checking meter by the CEBus grid line, carries out the grid line of carrier communication to " network controlled open circuit ammeter ' s reading meter device ", also is the grid line that CEBus network intelligence controllable type gas meter, water meter carry out carrier communication simultaneously.Fig. 6 copies and accepts the network annexation of system and device automatically for CEBus networking ammeter in the distribution automation.
In the present embodiment, the user be if need install (also can not installing) additional initiatively during anti induction thunder overvoltage protection device, can be by the scheme of No. 01262801.8 patented claim of China, or circuit theory setting shown in Figure 7.
Claims (6)
1, a kind of network controlled ammeter ' s reading meter device that opens circuit, its structure is: be provided with CPU microprocessor IC1, this processor is connected with network by modulator-demodular unit IC4, also be provided with the interface (7 of count pulse induction type machinery ammeter or full electronic ammeter, 9), interface is connected with CPU by the count pulse shaping circuit, also be connected with data-carrier store IC3 on the CPU, in smart circuit, be provided with the CEBus network communication circuit that is connected with CPU by analog switch, be provided with CEBus communication interface (8 outward, 10), power circuit is provided with electric current mutual inductance transducer L, the dropout switch of the ionic switch LZ and the circuit of cutting off the electricity supply, this dropout switch adopts the electromagnetic trip isolating switch; CPU is connected with the dropout switch through optoisolator spare, controllable silicon, solenoid; at meter-copy device 220VAC inlet wire incoming end (1,3); initiatively anti induction thunder overvoltage protection device module is housed, is provided with leakage protection circuit simultaneously, this circuit is connected with the electromagnetic trip isolating switch.
2, according to the described network controlled of the claim 1 ammeter ' s reading meter device that opens circuit, it is characterized in that: design has the infrared communication circuit in smart circuit, and is connected with the infrared communication window C of meter-copy device peripheral hardware.
3, according to claim 1 or the 2 described network controlled ammeter ' s reading meter device that opens circuit, it is characterized in that: said meter-copy device is the network controlled of the two-phase electricity ammeter ' s reading meter device that opens circuit, or the network controlled of the three-phase electricity ammeter ' s reading meter device that opens circuit.
4, the described network controlled of a kind of claim 1 power unit network terminal that the ammeter ' s reading meter device constitutes that opens circuit, it is characterized in that: combined by the pulse induction formula of installing in distribution ammeter box machinery ammeter or full electronic ammeter, the described network controlled anti-turn on sensor of instrument chamber door of establishing in ammeter ' s reading meter device and the distribution ammeter box that opens circuit, ammeter, meter-copy device and sensor all are electrically connected.
5, according to the described power unit network terminal of claim 4, it is characterized in that: be provided with multichannel CEBus network connection terminal in the distribution instrument box, comprise for the CEBus network controlled connection terminal that ammeter ' s reading meter device, CEBus network intelligence controllable type gas meter, CEBus network intelligence controllable type water meter insert respectively that opens circuit.
6, according to the claim 4 or the 5 described power unit network terminals, it is characterized in that: the power unit network terminal that the said power unit network terminal is the two-phase electricity or the power unit network terminal of three-phase electricity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031126146A CN1238823C (en) | 2003-01-06 | 2003-01-06 | Network controllable curcuit break electric meter reading transcriber and electric unit network terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031126146A CN1238823C (en) | 2003-01-06 | 2003-01-06 | Network controllable curcuit break electric meter reading transcriber and electric unit network terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1426031A CN1426031A (en) | 2003-06-25 |
| CN1238823C true CN1238823C (en) | 2006-01-25 |
Family
ID=4790204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031126146A Expired - Fee Related CN1238823C (en) | 2003-01-06 | 2003-01-06 | Network controllable curcuit break electric meter reading transcriber and electric unit network terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1238823C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104701990B (en) * | 2015-03-25 | 2017-12-26 | 北京汉普阳光科技有限公司 | Intelligent electric meter and intelligent power generation control system |
-
2003
- 2003-01-06 CN CNB031126146A patent/CN1238823C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1426031A (en) | 2003-06-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102437650A (en) | Intelligent electric power distribution system | |
| CN103023149A (en) | Intelligent power distribution terminal and intelligent power distribution system based on IEC61850 | |
| CN203352295U (en) | Intelligent terminal of rural network direct distribution station | |
| CN203398761U (en) | Integrated protector of motor | |
| CN1251380C (en) | Intelligent module system for electric distribution and monitor | |
| CN101572442A (en) | Intelligent protection type permanent magnetic contactor capable of performing remote communication | |
| CN204497853U (en) | A kind of photovoltaic case becomes protection telemetry communication integrated apparatus | |
| CN106909104A (en) | A kind of intelligent prepayment control system | |
| CN202475013U (en) | Intelligent power distribution device | |
| CN202856305U (en) | Low-voltage intelligent circuit breaker | |
| CN101640425B (en) | Intelligent electric load management device | |
| CN201478839U (en) | Intelligent type power load management apparatus | |
| CN105334387A (en) | Intelligent electricity meter with self-adaptive protection function and load detection method | |
| CN1238823C (en) | Network controllable curcuit break electric meter reading transcriber and electric unit network terminal | |
| CN2938505Y (en) | Intelligent reactive compensation distribution box | |
| CN2646799Y (en) | Network controllable broken circuit ammeter reader and electricity consumption unit network terminal | |
| CN207133618U (en) | A kind of box type transformer intelligent measuring and control device | |
| CN2717084Y (en) | Intelligent control protection device of high-voltage vacuum circuit breaker | |
| CN101409460A (en) | Visual locale bus power distribution system apparatus for dangerous situation | |
| CN1819386A (en) | Intelligent motor protector | |
| CN2355486Y (en) | Dispersed computer remote protector for electric substation | |
| CN201682274U (en) | Intelligent explosion-proof switch integrated protector | |
| CN205193156U (en) | Smart electric meter with self -adaptation protection | |
| CN205930326U (en) | Multi -functional electric automobile alternating -current charging system | |
| CN1259644C (en) | Prepaying intelligent electric meter reading transcribing device in DCPL network |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060125 Termination date: 20110106 |