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2103 results about "Ammeter" patented technology
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An ammeter (from Ampere Meter) is a measuring instrument used to measure the current in a circuit. Electric currents are measured in amperes (A), hence the name. Instruments used to measure smaller currents, in the milliampere or microampere range, are designated as milliammeters or microammeters. Early ammeters were laboratory instruments which relied on the Earth's magnetic field for operation. By the late 19th century, improved instruments were designed which could be mounted in any position and allowed accurate measurements in electric power systems. It is generally represented by letter 'A' in a circle.
El display device
InactiveUS20090109142A1Electrical apparatusStatic indicating devicesDisplay deviceElectrical current
A switch being turned off using an output open function of a power supply circuit, a cathode voltage Vss is not transmitted, an output terminal takes on a high impedance condition and, a probing being done into a pad of the cathode voltage Vss output terminal with a probe, an ammeter which measures a current is disposed between the probe 304 and an external power source Vsst, making an adjustment time cathode voltage Vsst equal to an image display time cathode voltage Vss.
Owner:TOSHIBA MATSUSHITA DISPLAY TECH
Remote display ammeter for power plug or power strip
InactiveUS20050101193A1Easy to viewOptimizationElectric discharge tubesCoupling device detailsElectricityDisplay device
A power strip is providing including a housing coupled to a first end portion of a power supply cord, the housing having an electrical receptacle mounted thereto and connected to the power supply cord, the power supply cord having a second end connectable to a power source. A current sensor is coupled to the power supply cord between the electrical receptacle and the second end for detecting electrical current flow through the power supply cord and providing an output signal that varies in proportion to the current flow through the power supply cord. A processing circuit coupled to the output of the current sensor includes a display device for displaying at least one of the current, voltage, power, and phase associated with the power supply cord at the current sensor. The display device can be remotely coupled to the power strip for positioning the display in a convenient location.
Owner:THE WIREMOLD CO
Intelligent ammeter fault real time prediction method based on decision-making tree
Provided is an intelligent ammeter fault real time prediction method based on a decision-making tree, comprising the steps of: 1, pre-processing intelligent ammeter data of an electricity information acquisition system; 2, according to an intelligent ammeter fault determination model, screening the fault data of intelligent ammeters in the electricity information acquisition system and sending the fault data into an intelligent ammeter fault database; 3, dividing the historic data in the intelligent ammeter fault database into a training set and a test set, employing a decision-making tree algorithm to perform data excavation on the training set, and forming an intelligent ammeter fault decision-making tree and a preliminary classification rule; 4, through the data of the test set, performing accuracy assessment on the preliminary classification rule, determining the preliminary classification rule if the accuracy meets requirements, or else returning to the training set for training again; 5, generating an intelligent ammeter fault real time prediction model according to a finally determined classification rule; and 6, linking an intelligent ammeter real time fault database to the intelligent ammeter fault real time prediction model for real time prediction to obtain intelligent ammeter fault real time prediction results.
Owner:国网新疆电力有限公司营销服务中心 +1
Remote display ammeter for power plug or power strip
InactiveUS7324006B2OptimizationIncreased versatilityElectric discharge tubesCoupling device detailsElectricityCurrent sensor
Owner:THE WIREMOLD CO
Energy consumption integrated control system and method
InactiveCN101881944AFlexible interfaceLow costElectrical testingElectric programme controlSimulationMultiple sensor
The invention provides an energy consumption integrated control system and a method, which is used for energy conservation and measurement control in occasions such as a base station, a motor room, an office building and the like. The method is implemented as follows: collecting energy consumption subentry measurement data; collecting multiple environment parameters relevant to energy consumption equipment; collecting and storing the collected energy consumption subentry measurement data and the collected relevant multiple environment parameters; receiving, outputting and displaying energy conservation data of the energy consumption equipment obtained by comparing the energy consumption subentry measurement data in real time and receiving a control strategy obtained by analyzing and comparing the relevant multiple environment parameters; and sending a control command based on the control strategy to control the relevant energy consumption equipment to regulate relevant parameters so as to realize the aim of energy conservation. The energy consumption integrated control system comprises an intelligent ammeter, multiple sensors, a data collector, an analyzer, a controller, a controlled device and a display. By collecting environment parameters, analyzing the existing energy consumption systems and energy conservation effects brought by various energy conservation measures and equipment in real time, the energy conservation input-output ratio can be reflected clearly; and the energy conservation measures are regulated based on environment changes, thus realizing intelligent interaction of energy conservation equipment.
Owner:北京斯普信教育科技有限公司
Electric energy meter test system and method thereof
Being applicable to the field of ammeter testing, the invention provides an electric energy meter test system and a method thereof; wherein the system comprises a PC, a controller, a meter hanging cabinet and at least one electric energy meter to be tested; the meter hanging cabinet is used for fixing the electric energy meter to be tested, the PC is provided with a withstand voltage test program and a meter counting program; the PC carries out withstand voltage test on the electric energy meter to be tested, which is arranged in the meter hanging cabinet according to the withstand voltage test program and produces a test result; and the PC carries out meter counting test on the electric energy meter to be tested, which is arranged in the meter hanging cabinet according to the meter counting program and produces a test result. In the invention, the PC is provided with a withstand voltage test program and a meter counting program, respectively carries out withstand voltage test and meter counting test on the electric energy meter to be tested, which is arranged in the meter hanging cabinet according to the withstand voltage test program and the meter counting program and produces test results; in the embodiment of the invention, only one-time wiring is enough for automatically completing withstand voltage test and meter counting test on the electric energy meter to be tested, so that work for electric power maintenance is greatly reduced and work efficiency for electric power maintenance is improved.
Owner:SHENZHEN CLOU ELECTRONICS
Analysis method for electricity stealing behavioral mode of electricity utilization of user
ActiveCN104036357AAddressing Human ExperienceSolve the problem of single analysis problemResourcesBusiness PersonnelElectricity
The invention relates to an analysis method for electricity stealing behavioral mode of user electricity utilization of a user. The analysis method comprises the steps of: (1) acquiring electricity utilization data of the user and acquiring anomalous event data of an ammeter; (2) extracting historical electricity utilization data and historical anomalous event data of the ammeter for processing; (3) cleaning the historical electricity utilization data and the historical anomalous event data of the ammeter; (4) establishing an electricity stealing behavioral analysis model; (5) correcting electricity stealing model parameters; (6) evaluating an electricity stealing risk. The analysis method is carried out under a framework of a big data platform, and mass data are calculated in parallel, so that the problem of low calculation efficiency is solved, the requirements on daily analysis, daily processing and daily monitoring of an electricity utilization department are satisfied, a clerk per se can select an electricity stealing user in high risk for processing, and therefore the work efficiency is improved.
Owner:STATE GRID CORP OF CHINA +1
Method and terminal for realizing household-side intelligent power consumption policy
InactiveCN102684305AEasy to detectRealize informatizationPower network operation systems integrationCircuit arrangementsCommunication interfacePower grid
The invention relates to a method and a terminal for realizing a household-side intelligent power consumption policy. The terminal is characterized by consisting of four parts, namely a power consumption information acquisition module, a power consumption information management module, a household power consumption control module and a superior application module, wherein the power consumption information acquisition module communicates with an intelligent measurement socket and an ammeter in real time to acquire household power consumption information; the power consumption information management module is interactive with the power consumption information acquisition module to realize information management and analysis; the household power consumption control module flexibly controls household appliances by controlling a household intelligent switch socket; and the superior application module is provided with a communication interface for being interactive with a power grid side so as to receive and analyze service information of a power grid and electrovalence information in real time. The terminal disclosed by the invention is used for processing and analyzing the complex information, can feed back analysis results to the power grid side, and simultaneously displays the analysis results for users through a human-machine interactive interface by a curve or a chart in a straightaway manner.
Owner:YUN NAN ELECTRIC TEST & RES INST GRP CO LTD ELECTRIC INST +1
Intelligent telemetering electric meter based on wireless sensor network
The invention discloses an intelligent telemetering ammeter based on a wireless sensor network. The hardware of the intelligent ammeter equipment comprises an exclusive radio frequency unit, a microcontroller unit, a power supply management unit, an electrical power information collecting unit, an external storage unit, a liquid crystal display unit and a fault detection unit. The intelligent ammeter has the functions of information collection, calculation, forwarding, routing, and the like. The intelligent ammeter automatically forms an ammeter network with other intelligent ammeters by the radio frequency unit, and is connected with a computer system of a power supply enterprise by a gateway. When used, the invention is connected with a wireless public utility product based on ZigBee technology to be used as a base station of other ammeter networks. The invention realizes the reliable connection between a remote power supply enterprise and electrical power users based on the wireless network, realizes the bidirectional transmission of data, and meets the electricity management requirements of residents by power supply enterprises.
Owner:吉林市曼博科技有限公司
Electrical current measurements at head-disk interface
InactiveUS20050174665A1Accurate assessmentRecord information storageRecording/reproducing/erasing methodsElectricityFlying height
According to an embodiment of the present invention, head / disk contact events are determined through a measurement of current at the head disk interface. For example, an ammeter / voltage source component may be electrically coupled to a magnetic / slider of a disk drive as well as to a spindle coupled to the recording medium. Applied voltage to the slider may result in a lower flying height. Greater measured current by the ammeter could indicate head / disk contact and assist in adjusting applied voltage to obtain a desire flying height.
Owner:SAE MAGNETICS (HK) LTD
Apparatus and system for automated pipeline testing
InactiveUS20110238347A1Resistance/reactance/impedenceVoltage-current phase angleTransceiverWireless transceiver
A cathodic protection system comprising remote test units for measuring various voltages and currents at remote locations on a cathodically-protected pipeline. The remote test units may comprise a processor configured to store measurements taken with the voltmeter and a wireless transceiver for communicating with other test units and / or a Web server or host computer in a daisy-chain or mesh radio configuration. The remote test units may comprise an instant-off switch which electrically connects the pipeline with a buried protected coupon of the same material as the pipeline, and a voltmeter configured to measure the instant-off potential of the protected coupon when the switch is opened. The test units may also comprise a millivoltmeter configured to measure a voltage across a critical bond current shunt resistor and an ammeter configured to measure AC and DC current flowing between the pipeline and the protected coupon with the instant-off switch is closed.
Owner:ELECSYS CORP
PLC-based intelligent household gateway apparatus
InactiveCN103607344ATake advantage ofSave resourcesPower distribution line transmissionNetwork connectionsCommunication unitEngineering
Disclosed in the invention is a PLC-based intelligent household gateway apparatus. The apparatus comprises: a master control unit, which is used for central controlling; an interaction unit, which is used for carrying out information interaction with a user; a metering unit, which is used for electric quantity metering; a wireless route communication unit, which is used for broadband access, indoor wireless network signal coverage, and communication with other communication terminals; a PLC communication unit, which is used for indoor power line carrier communication and is respectively connected with the master control unit, and a 220-V power line; a power supply limiting unit, which is used for controlling a household electricity load and is respectively connected with the master control unit and a household circuit input circuit; and a power supply unit, which is used for providing power for all the units. And the interaction unit, the metering unit and the wireless route communication unit are respectively connected with the master control unit. According to the invention, the intelligent household gateway apparatus that has high integration is integrated with the function as a household intelligent ammeter and the functions of intelligent power management, intelligent household, and home network access and the like, thereby building comfortable, intelligent, high-efficiency, and green household living environment.
Owner:南京博立康电力设备有限公司
Apparatus and method for ground fault detection and location in electrical systems
InactiveUS7529069B1Precise positioningRapid and efficient repairShort-circuit testingEmergency protective arrangements for automatic disconnectionVoltmeterHemt circuits
The present invention is implemented by deploying an enhanced ground fault detection and location apparatus and by using the apparatus in conjunction with specific circuit analysis methods, using the information generated by the ground fault detection and location apparatus. The ground fault detection and location apparatus comprises the functionality of a voltmeter, an ammeter, a frequency generator, and a variable power supply, thereby providing for a variety of signals and analyses to be performed on a unintentionally grounded circuit in an ungrounded AC or DC power distribution system. The apparatus includes a main unit and a remote unit, which may be a portable hand-held unit. In a first mode, the apparatus of the present invention can be used to detect ground faults. By switching to a second mode, the apparatus of the present invention can be used to locate ground faults. The methods of the present invention involve the generation of various signals by the main ground fault detection and location unit. The generated signals are introduced into the electrical distribution system and monitored by various means, including one or more remote units. By analyzing the system-level response to the generated signals, the specific location of the ground fault or faults can be more readily ascertained, thereby promoting rapid and efficient repair and recovery practices. The apparatus of the present invention may be implemented as a dedicated, permanent installation or as a temporary portable system. Additionally, the system may be implemented as an automatic computer-controlled ground fault location and detection system.
Owner:WEEMS II WARREN A +2
Privacy protection type real-time electric charge collecting method for intelligent power grid
ActiveCN104219056AOvercoming complexityOvercome computing timeKey distribution for secure communicationUser identity/authority verificationPrivacy protectionPower grid
The invention discloses a privacy protection type real-time electric charge collecting method of an intelligent power grid. The method comprises the following steps: 1, initializing a system; 2, registering through a user before logging in the network; 3, releasing network access permit for an intelligent ammeter through a local aggregator; 4, obtaining a safety parameter through the intelligent ammeter; 5, transferring the network access permit through building gateway; 6, blinding the user electricity consumption data through the intelligent ammeter; 7, signing the blinded massage through the building gateway, and sending the signature result to the local aggregator; 8, removing blinding of the signed message through the local aggregator, recovering the user electricity consumption data, signature value of the user electricity consumption data, and the signature parameter, and verifying the validity of the signature value of the user electricity consumption data. With the adoption of the method, the user privacy is protected when collecting the real-time electricity consumption data; meanwhile, the source of vicious electricity consumption data can be found out; therefore, the stability of a power grid system can be improved well.
Owner:DELIXI GROUP INSTRUMENT CO LTD
State of charge calculation device and state of charge calculation method
InactiveUS6845332B2High precisionAccurate calculationBatteries circuit arrangementsTesting electric installations on transportStart timeState of charge
A state of charge calculation device includes an ammeter for detecting charge and discharge currents of a secondary battery, a state detection sensor for detecting a start time of discharge from the secondary battery to an engine, a battery electronic control unit (ECU) for calculating a state of charge of the secondary battery. The battery ECU of this state of charge calculation device calculates the state of charge of the secondary battery, based on the current and voltage detected at the time when discharge starts.
Owner:TOYOTA JIDOSHA KK
Automatic three-phase unbalanced load compensation experimental device and its control method
InactiveUS20130054204A1Strong simulation genuinenessLow costPower network operation systems integrationPolyphase network asymmetry elimination/reductionComputer modulePower grid
Disclosed are an automatic three-phase unbalanced load compensation experimental device and its control method. The experimental device comprises an automatic compensation device, a load simulation part, and detection, display and control parts. The automatic compensation device comprises power capacitors and intelligent grouping compound switches; the detection, display and control part comprises current transformers, molded case circuit breakers, a three-phase digital display ammeter, a three-phase electric power monitoring instrument, a protocol conversion module, 485 buses, Ethernet cables and an upper computer; the load simulation part comprises phase A, B and C loads which are in star connection and are same in component and circuit connection, an analog output module and a relay output module. Power monitoring instrument and digital ammeter are connected to the grid by circuit breaker and current transformer. The automatic compensation device and load simulation part are connected to the grid in parallel.
Owner:NORTHEASTERN UNIV +12
Watthour meter remote verify monitoring system
InactiveCN101162264ARealize real-time online detectionAvoid failureElectric signal transmission systemsElectrical measurementsMeasuring instrumentRemote computing
The invention provides a remote checking and monitoring system for electrical energy measuring instrument, the system is composed of a local unit, a local computer, a remote computer; a local display unit and a remote communication unit are connected with a microprocessor unit; the local computer and the remote computer are connected with the remote communication unit; the secondary voltage of a voltage transformer and the secondary current of a current transformer are connected with a checked ammeter and a standard ammeter in the local unit at a same time. The invention has the advantages that: firstly, an omni-bearing test for the whole electrical energy measuring system can be realized; secondly, a real-time on-line test for the electrical energy measuring system is realized; thirdly, the invention is provided with a remote communication function; fourthly, the invention can be interfaced with electrical energy measuring instruments of different types and from different factories; fifthly, the problems existing in the electrical energy measuring work of electrical customers can be accurately grasped.
Owner:红相电力(上海)有限公司
Device for monitoring ground source heat pump system based on internet of things
ActiveCN102818337ASpace heating and ventilation safety systemsLighting and heating apparatusLine sensorThe Internet
The invention relates to the ground source heat pump technique and particularly relates to a device for monitoring the ground source heat pump system based on the internet of things. The device comprises a soil temperature wireless sensor, an outdoor air temperature wireless sensor, an indoor temperature wireless sensor, water inlet-outlet temperature wireless sensors arranged on a cold-hot resource side and an air conditioner loading side of a cold water machine set, a flow wireless sensor, a wireless intelligent ammeter, a wireless signal collecting module, a local server and a remote monitoring computer. The wireless signal collecting module collects the parameter of each sensor according to the ZigBee protocol, transmits the parameters to the local server by the Internet according to the Modbus protocol, and then stores, computes and displays the COP (coefficient of performance) and the WTF (water transport factor) curves by the ground source heat pump system, and finally transmits the parameters to the remote monitoring computer by the Internet. The device can obtain the CPI (comprehensive performance index), the COP (coefficient of performance) and the WTF (water transport factor) of the ground source heat pump, and is beneficial to monitoring the daily energy-saving situation of the ground source heat pump system and providing evaluation data for the energy-saving improvement of the system.
Owner:HUBEI FENGSHEN CLEAN AIR CONDITIONING EQUIP ENG
Long-distance concentrated ammeter reading system based on flooding algorithm
InactiveCN102176681ARealize remote copyingImplement queryPower distribution line transmissionGeneral Packet Radio ServiceData acquisition
The invention provides a long-distance concentrated ammeter reading system based on a flooding algorithm. The ammeter reading system is characterized by comprising a master ammeter reading station, a general packet radio service (GPRS) network, a concentrator and an electric carrier ammeter, wherein the master ammeter reading station and the concentrator are provided with GPRS modules and communicated through the GPRS network; and the concentrator and the electric carrier ammeter are communicated through an electric wire. By using the system, the disadvantages of the traditional ammeter reading mode are overcome, thereby completing functions such as data acquisition, measurement, transmission, settlement and the like, realizing functions such as long-distance reading, inquiry, payment, intelligent control and the like. The system has the advantages of small work load, large transmission data quantity, high veracity, low expenditure and the like; and a modern automatic technique is used for replacing manual management, thereby improving efficiency.
Owner:桂林宏博电子信息科技有限公司
Polymer material for ammeter case
The invention relates to a high molecular material for an ammeter shell, which consists of PC-based resin, glass fiber, main flame retardant, dripping resistant agent, toughening agent, compatilizer, lubricant, and hindered phenol and phosphate ester of antioxidant. The high molecular material is characterized in that the PC is a mixture of two or more than two different PC with 5 to 24 of melt index, the main flame retardant is decabromodiphenylethane, the compatilizer is maleic anhydride grafting ABS, the toughening agent is PTW, and the lubricant is PETS and OP wax; and each component has the following adding weight portion: 490 to 770 portions of the PC-based resin, 100 to 300 portions of the glass fiber, 50 to 70 portions of the main flame retardant, 50 to 100 portions of the compatilizer, 20 to 40 portions of the toughening agent, 5 to 10 portions of the dripping resistant agent, 5 to 10 portions of the lubricant, and 4 to 6 portions of the antioxidant.
Owner:CHONGQNG PRET NEW MATERIAL +2
Pressure detection apparatus, josephson device, and superconducting quantum interference device that include superconductor thin film that undergoes transition from superconductor to insulator by pressure
InactiveUS20100171098A1Superconductor detailsDissimilar materials junction devicesInternal pressureElectrical conductor
A pressure detection apparatus (30) detects, among a plurality of superconductor thin films (11 to 14) having different critical pressures at which a transition from a superconductor to an insulator occurs, the superconductor thin films (12 to 14) that have undergone the transition to the insulator with ammeters (242, 252, 262); and to detect, as an internal pressure of a housing (10), the maximum critical pressure among the critical pressures of the detected superconductor thin films (12 to 14).
Owner:HIROSHIMA UNIVERSITY
Electric energy metering and monitoring system of intelligent gateway
InactiveCN102135608AImprove Metering AutomationImprove modern management levelElectrical measurementsTime errorCurrent clamp
The invention relates to an electric energy metering and monitoring system of an intelligent gateway, which mainly comprises a three-phase standard ammeter and a built-in computer thereof, a remote switching control device, contactless intelligent open-loop current pincers, a detected meter switching control unit, an error verification unit and the like, wherein the remote switching control device comprises an MPU (Micro Processor Unit) chip control circuit and a relay switching circuit which are arranged in a switching box; 8 paths of input ends for connecting a detected meter are arranged on the switching box; the current signals of the detected meter, which are taken out by the current pincers, and the voltage signals and pulse signals of the detected meter, which are taken out by a voltage and pulse sampling circuit of the detected meter, are accessed to the standard ammeter through the switching box; and the error verification of the detected meter is realized through a software platform. The electric energy metering and monitoring system provided by the invention has the characteristics of simple integral design, real-time error verification and high safety, and is convenient to install.
Owner:STATE GRID SICHUAN ELECTRIC POWER CORP ELECTRIC POWER RES INST
Device, ammeter and motor vehicle
InactiveUS6940265B2Reduce dependenceSuppress interferenceMagnetic measurementsCurrent/voltage measurementElectricityMobile vehicle
A device, an ammeter and a motor vehicle, having a first section and a second section of a conductor for the purpose of measuring the electrical amperage in the conductor are described; a first sensor means and a second sensor means being provided; the current flowing in the first section and in the second section generating a useful magnetic field; the first sensor means being provided to measure the useful magnetic field; the second sensor means being provided in a location where the useful magnetic field disappears; the second sensor means being provided to measure a magnetic interference field; and the measurement of the useful magnetic field being correctable by the measurement of the magnetic interference field.
Owner:ROBERT BOSCH GMBH
Power supply apparatus
InactiveUS20080203816A1Conducive to stable operationImprove powerSecondary cells charging/dischargingAc network load balancingEngineeringMobile device
Provided is a technology where a voltage capable of driving a mobile device, to which a power supply apparatus is connected, is automatically detected. The power supply apparatus, for supplying power to the device connected, includes a power supply, a voltage conversion unit which varies a voltage inputted from the power supply to a predetermined voltage and outputs the varied voltage to the device, an ammeter which measures an output current value of the power supply apparatus, and a control unit which controls the voltage varied by the voltage conversion unit. The control unit boosts the voltage outputted from the power supply in stages and detects, by detecting a change in the output current value, that the output voltage of the power supply apparatus boosted by the voltage conversion unit has reached a voltage capable of driving the device.
Owner:JX NIPPON OIL & ENERGY CORP
Low-voltage transformer district simulated practice training system based on rural power grid intelligent low-voltage distribution box
InactiveCN104575200AEliminate Harmonic DistortionEliminate voltage fluctuationsCircuit arrangementsEducational modelsHarmonic mitigationLow voltage
The invention discloses a low-voltage transformer district simulated practice training system based on a rural power grid intelligent low-voltage distribution box. The system comprises an intelligent low-voltage management master station system in a practice training room, and a simulated intelligent distribution transformer district and an intelligent ammeter of a low-voltage electric power user which are in the practice training room, wherein the intelligent low-voltage management master station system comprises a data storage server, a data processing server, a preposition server, a Web server, a gateway server, a database server and a management terminal. According to the low-voltage transformer district simulated practice training system based on the rural power grid intelligent low-voltage distribution box, the rural power grid intelligent low-voltage distribution box is served as a basic unit, real-time monitoring system simulation of electric power parameter simulating, controlling and managing is carried out on distribution transform and the low-voltage electric power user which are matched with the rural power grid intelligent low-voltage distribution box. Through the intelligent low-voltage management master station system in the practice training room, the distribution transform parameter monitoring, measuring, the electricity information collecting, the communicating, the dynamic reactive power compensation controlling, the harmonic restraining and the three-phase imbalance governing on the simulated intelligent distribution transformer district can be achieved, and the integrated application function of the electricity safety and the electric power facility protection real-time monitoring and early warning can be achieved.
Owner:STATE GRID CORP OF CHINA +3
Combined thermal power generation energy supply method and system
InactiveCN101275763ANarrow the gap between winter and summer heat loadImprove operational efficiencyHeat pumpsEnergy efficient heating/coolingThermal energyCogeneration
The invention relates to a thermoelectricity tri-generation method and a system thereof, wherein the system includes a thermoelectricity tri-generation set used for generating the electric energy and the heat energy; an air-condition coupled with the thermoelectricity tri-generation set through the power line and for driving the heat pump to generate the heat energy by the electric energy generated by the thermoelectricity tri-generation set; an air-condition ammeter phase coupling with the air-condition specially used for detecting the power consumption of the heat pump in the air-condition; a control device used for obtaining the electric energy of the thermoelectricity tri-generation set and the optimal working point data generated by the heat energy according to the electric consumption data and the energy consumption, and controlling the operation of the thermoelectricity tri-generation set based on the optimal working point data. Adopting the device, the inhabitant heating users are divided into the air-condition heat pump heating users and the hot water type radiator centralized heating users, and the electric energy and the heat energy are supplied to the heating users by the thermoelectricity tri-generation for the requirement in the winter, which reduces the heat road difference in the summer and waiter, advances the energy source using efficiency and the economical profit of the thermal power plant.
Owner:XI AN JIAOTONG UNIV
Data reporting method and system
InactiveCN102142863AAvoid Communication AnomaliesAvoiding Difficulties in Line Loss CalculationPower distribution line transmissionTransmission path multiple useTransformerData reporting
The invention discloses a data reporting method and system. The data reporting method comprises the following steps: a concentrator issues a file information reporting order; an ammeter receives the file information reporting order, and self file information is obtained by inquiry and comprises an ammeter identification indicating the identity of the ammeter; and the ammeter uploads the self file information to the concentrator. With the data reporting method, the concentrator can automatically obtain the file information of the ammeter within the power supply range of one transformer, so that the corresponding relationship between the file information of the ammeter and the power supply range of one transformer is built, and the workload of a worker can be lightened. According to the data reporting method, the worker does not need to judge the power supply range of one transformer, to which the ammeter belongs, according to a line route so as to improve the accuracy of the corresponding relationship between the file information of the ammeter and the power supply range of one transformer, and the phenomena that ammeter communication is abnormal and calculation is difficult because inaccurate corresponding relationship between the ammeter and the power supply range of one transformer can be avoided.
Owner:STATE GRID CHONGQING ELECTRIC POWER CO ELECTRIC POWER RES INST +1
Portable battery charger powered by internal combustion engine
ActiveUS7471000B1Easy to carryFirmly connectedBatteries circuit arrangementsMachines/enginesExternal combustion engineVoltmeter
Owner:WHEATLEY VANESSA MARIE +1
Magnetic sensing device, method of forming the same, magnetic sensor, and ammeter
ActiveCN1657967ASuppression hysteresisReduce offsetNanostructure applicationNanomagnetismHysteresisElectrical resistance and conductance
Owner:TDK CORPARATION
Withstand voltage test platform and test device for insulation rod
ActiveCN102495245AEasy to operateEasy to useTesting dielectric strengthMeasurement instrument housingVoltmeterDisplay device
The invention relates to electric power facilities, in particular to a withstand voltage test platform, which is characterized by being provided with a test support formed by a quadrilateral test frame, a front supporting rod and a rear supporting rod. A left border, a right border and the front supporting rod of the test support are made of insulation materials, and a front border, a rear border and the rear supporting rod are made of conductive materials. The front supporting rod and the rear supporting rod are made of extensible sleeves, and the lower ends of the front supporting rod and the rear supporting rod are respectively provided with a conductive plate cushion. The left border and the right border of the test support are made of the extensible sleeves, at least two fixing clamps made of flat sheet are arranged on the front border and the rear border of the test support, and the width of each fixing clamp is no smaller than 5cm. Temperature sensors are arranged on the fixing clamps on the rear border of the test support and are connected with a temperature displayer through data lines, a high-voltage wiring terminal is arranged on the front border of the test support, and a voltmeter and an ammeter are arranged on the rear border of the test support. The withstand voltage test platform has the advantages of being simple in structure, safe in use, high in test efficiency and precise and the like.
Owner:WEIHAI POWER SUPPLY COMPANY OF STATE GRID SHANDONG ELECTRIC POWER COMPANY +1
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