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JP3373792B2 |
To facilitate the optimum selection of an electric power company by presenting the combination of contract conditions selected at every electric power company in response to the conditions of consumers in the contract conditions containi...
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JP3372694B2 |
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JP3361480B2 |
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JP2002369385A |
To provide a power transmission control system and power reception control system capable of automatically collecting consumed quantity of electricity, selecting and using low-cost electric power, and obtaining an electric charge system ...
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JP3352621B2 |
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JP2002345177A |
To realize a wide area power demand control system directed for general consumers.A power company (101) and general power consumers (112) are connected with a transmission line (113) and a communication line (103). When the amount of pow...
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JP2002340945A |
To verify the operating status of various apparatus of which the connection to a home network is difficult by applying a monitoring device to, for example, a television receiver.The monitoring device monitors the operating status of vari...
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JP3349102B2 |
To shorten the test time for an electronic watthour meter. According to this test method, a digital value of instantaneous electric power is obtained according to a sampling signal, and the energy value pulse number of an electronic watt...
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JP3346578B2 |
An automatic meter reading data communication system (20) having an integrated digital encoder (22) and two-way wireless transceiver that is attachable to a wide variety of utility meters for meter data collection and information managem...
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JP2002329282A |
To provide a digital display integrating revolution counter measuring instrument which can accurately and immediately convert a revolution value into a digital electric signal, improves data security remarkably, can perform long-distance...
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JP3339494B2 |
The multicircuit type instrument of the invention is designed to measure the electric power, electric energy, power factor, reactive power, and reactive energy of one or more voltage lines of alternating-current three-phase electric circ...
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JP3339495B2 |
The multicircuit type instrument of the invention is designed to measure the electric power, electric energy, power factor, reactive power, and reactive energy of one or more voltage lines of alternating-current three-phase electric circ...
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JP2002311070A |
To inexpensively provide information about an operation condition of equipment and information such as an anomaly diagnosis and advice on saving energy consumption.Each branch circuit 4 of a distribution board 1 has a power detector 6, a...
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JP2002297078A |
To provide an information display method for a liquid crystal screen, which is superior in visibility and displays information with high accuracy, even when the display space is limited and doubles the precision with the same number of l...
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JP2002296307A |
To make disappearance of data due to failures hard to occur, and to reduce rounding errors included in long-term integrated values.This electric power monitoring device is provided with both an electric power measuring device 12 for meas...
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JP2002296299A |
To make a charge set finely, and to make the charge setting change easily.This motor is provided with a power measuring instrument 12 for measuring momentary electric power based on a voltage value and a current value from an power detec...
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JP2002286770A |
To provide a fixed time measurement storage device of the power and the electric energy for measuring the electric energy statistically and providing data, on power-generating equipment or an electrical product, and on introduction of an...
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JP3330519B2 |
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JP3329335B2 |
To make effectively utilizable the number of circuits for measurement prepared for measuring various quantities of electric power of multiple circuit even when the number of feeders for each voltage system is not constant by mounting a m...
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JP2002277493A |
To overcome problems that, when the weight per 1 pulse, which is used to obtain electric energy in a sampling period by multiplying to the number of pulse with a pulse power integration means 3, is increased, the pulse is not necessarily...
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JP3327193B2 |
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JP2002257873A |
To a composite weighing system of multiple circuits that can resolve the complexity of marking a multiplying factor and easily grasp the value of a primary side of working power.The system comprises a composite transmitter 10, that consi...
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JP3323469B2 |
To actualize a multi-circuit type watthour meter which does not require wide installation space, is aimed at cost reduction, and can measure the electrical energy of circuits. The outputs of a current-detecting means 1b and a voltage- de...
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JP3322543B2 |
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JP2002243776A |
To provide a machine tool equipped with a display device for power used, capable of monitoring electric energy used.This display device 20 for power used is formed by including power evaluating means 21, 22, 24, 25, 26, 27, 28 to integra...
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JP3316121B2 |
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JP2002233082A |
To perform centralized control and management such as the measuring, checking, power supply turning on and off control and fine power control of the whole electric equipment in a distribution board, the individual power consumption of th...
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JP2002526018A |
An energy and facilities management system and method is provided for energy users with large physical plants which provides these energy users with a comprehensive understanding of the energy consumption of their physical plant and with...
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JP3314039B2 |
To facilitate the setting of monitoring conditions and the detection of whether the monitoring voltage satisfies its conditions or not by providing a means for setting the reference value of voltage and the monitoring conditions and a me...
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JP3312167B2 |
A method and apparatus for digitally measuring electrical energy consumption from a transmission line (11,12,13) carrying alternating current. Instead of actually measuring current from a transmission line conductor, the time derivative ...
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JP3312006B2 |
To provide a reactive power computing device and a reactive energy measuring device reducing the number of analogue parts and the size in spite of formation of LSI for lowering costs. A voltage V1 and a current A1 inputted from input ter...
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JP3311208B2 |
To reduce linear errors by lowering the effect of an offset voltage which an integrator has. A selection means 8 works to discharge electricity charged in a capacitor C1 of an integrator 1 by a combined signal of an input voltage E and a...
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JP2002214257A |
To provide an electronic type watt meter which enables preserving and displaying of integrated values after the inspection thereof without any power source and also displaying of the integrated values after the service in the case of a p...
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JP3302805B2 |
PURPOSE: To provide a practical harmonic power integrating meter for continuously measuring and monitoring harmonic power flowing out from non-utility system to a power supply system. CONSTITUTION: The harmonic power integrating meter co...
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JP3301660B2 |
PURPOSE: To provide an electric energy measuring device by which electric energy consumed by a firm load can be measured at a low cost even from a remote place. CONSTITUTION: A load current detected by an electric current detecting part ...
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JP2002196023A |
To provide a range switching circuit capable of continuing proper measurement even during a change of a range or when an input value exceeds the range.The range switching circuit is provided changing an amplification factor of an input a...
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JP3297276B2 |
To obtain a structure where the number of screws, assembling steps and assembling components can be decreased by passing a wire, extending between the power supply side and the load side, integrally with a terminal through a current-magn...
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JP2002183871A |
To provide a pulse signal integration monitoring device with reduced cost of the whole device when, in particular, objects to be measured are dispersed.Pulse signals from sensors 1A to 1N are counted and integrated by a receiver 4 and ar...
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JP2002174649A |
To improve the system reliability for totalizing and outputting the power consumption for every division or process from a measured value of a watt-hour meter placed anywhere in power distribution facilities.The occurrence of an abnormal...
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JP2002174648A |
To achieve a watt-hour meter capable of obtaining useful information on reducing electric energy.The relation between voltage and power can be obtained without particularly changing the voltage of an electric circuit by providing a volta...
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JP2002168880A |
To provide a system for measuring an electric energy which (1) is relatively inexpensive, (2) can be set easily, and (3) can measure highly accurately.An electric energy meter is used. The electric energy meter generates outside the appa...
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JP3287434B2 |
PURPOSE: To make it possible to display an integrated amount of power in the case where it is small and display of an integrated power high resolution by a method wherein CPU switches over a display resolution automatically on the basis ...
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JP2002152971A |
To obtain a load-demand estimating device that is highly accurate in presuming a load demand, and in particular, capable of estimating which devices a load is on, by reliably judging the change of on or off of the devices.This device is ...
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JP3282632B2 |
PURPOSE: To enable a programmable digital-signal processor belonging to a data sampling system that operates with bit-serial type digital signals to be obtained by having a monolithic IC, a memory system and a controller and to reduce co...
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JP2002139527A |
To solve such problems that, though measurement for buying and saling electric energy is required when a photovoltaic power generating system is connected to a small-scale load capable of applying a flat rate lighting contract, equipment...
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JP2002139526A |
To provide a measuring device capable of suppressing the power consumption by operating only at the time when a need arises and by measuring only when a measuring object is in operation, to the utmost.This device has a constitution equip...
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JP2002125332A |
To reduce cost by integrating a monitor unit, control unit and server of a home electrical workpiece and also realize reduction in maintenance and operation cost from a structure of mass production components.A user interface can be deve...
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JP2002512749A |
In a method for transmitting a desired parameter to a remote location, the desired parameter is first communicated to a base transmitter. Then, the base transmitter transmits a first radio signal therefrom having an unknown center freque...
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JP2002118960A |
To provide an electricity change rate management apparatus, capable of managing electricity rates by setting a target with respect to an electricity rate in a facility or service electric power or CO2 of a total power load in a described...
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JP2002116228A |
To provide a harmonics measuring device capable of having the effects of reducing electric power by taking measures to suppress harmonic waves on an object to be measured which generates harmonic waves, evaluating its amount of money, an...
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