KR101763846B1 - Distribution terminal apparatus of power management signal for digital watt-hour meter - Google Patents

Distribution terminal apparatus of power management signal for digital watt-hour meter Download PDF

Info

Publication number
KR101763846B1
KR101763846B1 KR1020150131663A KR20150131663A KR101763846B1 KR 101763846 B1 KR101763846 B1 KR 101763846B1 KR 1020150131663 A KR1020150131663 A KR 1020150131663A KR 20150131663 A KR20150131663 A KR 20150131663A KR 101763846 B1 KR101763846 B1 KR 101763846B1
Authority
KR
South Korea
Prior art keywords
signal
power management
distribution
unit
output
Prior art date
Application number
KR1020150131663A
Other languages
Korean (ko)
Other versions
KR20170033650A (en
Inventor
민병용
김호진
Original Assignee
민병용
김호진
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 민병용, 김호진 filed Critical 민병용
Priority to KR1020150131663A priority Critical patent/KR101763846B1/en
Publication of KR20170033650A publication Critical patent/KR20170033650A/en
Application granted granted Critical
Publication of KR101763846B1 publication Critical patent/KR101763846B1/en

Links

Images

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R22/00—Arrangements for measuring time integral of electric power or current, e.g. electricity meters
    • G01R22/06—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods
    • G01R22/061—Details of electronic electricity meters
    • G01R22/063—Details of electronic electricity meters related to remote communication
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
    • G01R11/30—Dynamo-electric motor meters
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R22/00—Arrangements for measuring time integral of electric power or current, e.g. electricity meters
    • G01R22/06—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods
    • G01R22/10—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods using digital techniques
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C15/00—Arrangements characterised by the use of multiplexing for the transmission of a plurality of signals over a common path
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C19/00—Electric signal transmission systems
    • G08C19/02—Electric signal transmission systems in which the signal transmitted is magnitude of current or voltage

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)

Abstract

The present invention relates to a power management signal distribution terminal for a digital watt hour meter for distributing an integrated power amount signal and a simultaneous period signal output through a single signal output unit in a digital watt hour meter installed in a power consumer of a factory or the like, ≪ / RTI >
In the present invention, a signal receiving unit separately receives power management signals output from respective output terminals formed in a signal output unit of a digital watt-hour meter through reception terminals; A signal distributing unit for distributing the power management signals received by the signal receiving unit through a plurality of distribution circuit paths; A plurality of modulation processing units for modulating each of the power management signals distributed in the signal distributing unit to generate a distributed power management signal corresponding to a signal strength corresponding to the power management signal output from the digital watt hour meter; A plurality of distribution output units for outputting distribution power management signals generated by the modulation processing unit to the distribution terminals; And a power supply unit for supplying power according to driving of the modulation processing unit.

Description

[0001] The present invention relates to a power management signal distribution terminal apparatus for a digital watt-

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power management signal distribution terminal apparatus for a digital watt-hour meter, and more particularly, to a power management signal distribution terminal apparatus for a digital watt- To a power management signal distribution terminal apparatus for a digital watt-hour meter that is configured to distribute and transmit in real time to a management apparatus.

As the living standard of the society is improved overall and the industry is developing, the power consumption is rapidly increasing every year compared to the power supply.

Particularly, during the hot summer, the increase of the cooling load causes the maximum power consumption in a certain time to exceed the supply amount, which is considered to be a big problem at the national level. In such a case, It is necessary to supply a limited amount of electric power in some areas.

Therefore, the national power management organization (KEPCO, Korea) is implementing a tariff policy to curb the maximum demand power of electric power consumers in order to reduce electricity use autonomously.

That is, the electricity rate is divided into the basic charge and the electric power charge, and the basic charge is set to the maximum demand electric power of the previous 12 months including the inspection month We apply rate system of 12 months which we set tariff rate as base rate after the meter reading month.

As a result of the implementation of this plan, the burden on the base rate has increased significantly in business buildings in urban areas where the cooling load is heavily weighted, and factories that fluctuate in load at certain times.

In order to overcome these shortcomings, a maximum power management device and a power demand management prediction system have been developed to efficiently manage the accumulated power amount per unit time used in the customer, and to efficiently distribute the power with the management of the power consumption amount .

Here, the maximum power management apparatus sets the maximum target power amount of the customer, detects the power consumption amount of each demand time, predicts the power demand amount at the end of the demand time through the tendency of increasing the current demand time limit, If it is predicted that the target power amount will be exceeded, it is a device that cuts off the power supplied to the load with the set priority and adjusts the used power to be equal to or less than the target power.

The power demand forecast management system analyzes the actual current consumption of each customer to predict the current reduction amount, and distributes and saves surplus power amount corresponding to the contracted maximum target power amount.

The maximum power management apparatus or the power demand forecast management system recognizes the accumulated power amount per unit time and the actual power consumption amount of the customer by receiving the unit synchronization time value output in real time from the digital watt hour meter installed in the customer.

However, since the conventional digital watt-hour meter outputs the integrated power amount and the unit synchronization time value per unit time through the single output terminal unit, a plurality of the maximum power management apparatuses may be arranged for the stability of the maximum power consumption, It is practically difficult to install power management devices such as a demand forecast management device at the same time.

That is, since the digital watt hour meter is sealed so that any operation can not be performed, it is practically impossible to arbitrarily modify the digital watt hour meter.

In addition, since the conventional maximum power management apparatus is directly connected to the digital watt-hour meter, there is a possibility that the digital watt-hour meter may be electrically damaged by a back electromotive force or the like that is wrongly input from the maximum power management apparatus.

An object of the present invention, which is devised in view of the above-described needs, is to divide an integrated power amount signal and a synchronization period signal output through a single signal output unit in a digital wattmeter installed in a power receiver of a factory or the like and distribute the signal in real time to various power management apparatuses To a power management signal distribution terminal apparatus for a digital watt-hour meter,

A power management signal distribution terminal device for a digital watt-hour meter capable of transmitting an accurate power management signal by suppressing loss of signal intensity due to signal distribution and preventing electrical damage of the digital watt-hour meter due to back- .

The above object is achieved by the following constitutions provided in the present invention.

A power management signal distribution terminal apparatus for a digital watt hour meter according to the present invention comprises:

A signal receiving unit for individually receiving power management signals output from respective output terminals formed in a signal output unit of the digital watt-hour meter through reception terminals; A signal distributing unit for distributing the power management signals received by the signal receiving unit through a plurality of distribution circuit paths; A plurality of modulation processing units for modulating each of the power management signals distributed in the signal distributing unit to generate a distributed power management signal corresponding to a signal strength corresponding to the power management signal output from the digital watt hour meter; A plurality of distribution output units for outputting distribution power management signals generated by the modulation processing unit to the distribution terminals; And a power supply unit for supplying power according to driving of the modulation processing unit,

And a distributed power management signal having the same signal strength as the power management signals output from the signal output unit of the digital watt-hour meter through the plurality of distribution output units is outputted through the distribution output unit without loss of signal intensity according to the signal distribution .

Preferably, the power management signal of the digital watt-hour meter includes an integrated power amount signal output from an integrated power amount output terminal among output terminals and a synchronization period signal outputted through a synchronization period signal output terminal.

More preferably, the distributed power management signal output to each of the distribution output units includes a distributed integrated power amount signal outputted through the distributed integrated power amount output terminal of the distributed output unit, and a distributed integrated power amount signal outputted through the distribution synchronous period signal output terminal Signal.

 Each of the modulation processing sections includes a signal conversion unit for converting the power management signal distributed by the signal distribution unit into an outgoing signal, a transmission unit for transmitting the outgoing signal generated in the signal conversion unit, And a modulated signal unit for modulating the generated outgoing signal to generate a distributed power management signal of the signal strength corresponding to the power management signal.

The transmission unit is of a non-contact type for transmitting an outgoing signal in a non-contact state. The transmission unit is electrically connected to the signal receiving unit electrically connected to the digital watt-hour meter through a signal line, and the distribution output unit electrically connected to the power management apparatus through a signal line Thereby preventing electrical damage to the digital watt hour meter due to the counter electromotive force that is abnormally applied in the power management apparatus.

The transmission unit includes a light emitting diode circuit for emitting a light emitting signal generated in the signal conversion unit and a light receiving diode circuit for receiving a light emitting signal emitted from the light emitting diode circuit, And a signal receiving unit connected to the digital watt hour meter through a signal line and the distribution output unit are electrically disconnected from each other by the transmission unit.

As described above, in the present invention, a digital watt-hour meter installed in a power consumer of a factory or the like distributes an integrated power amount signal and a synchronization period signal output through a single signal output unit and outputs it to a plurality of power management devices in real- And a signal distribution terminal apparatus.

Particularly, in the present invention, the distributed power management signal is output through the modulation processing unit at the same intensity as the original power management signal, thereby reducing the reduction of the signal intensity due to signal distribution. As a result, The power management apparatus can receive the computed power amount signal value and the synchronization period signal value outputted in real time from the digital watt-hour meter in a stable manner, thereby enabling efficient power management of the customer.

Further, in the present invention, the non-contact type transmission unit is added to the modulation processing unit, and the signal receiving unit that is made conductive through the digital watt hour meter and the signal line, and the distribution output unit that is conducted through the power management apparatus and the signal line are electrically disconnected, It has safety to prevent electrical damage of the digital watt hour meter due to the counter electromotive force which is abnormally applied in the apparatus.

FIG. 1 is a schematic diagram showing the overall arrangement of a power signal distribution terminal apparatus for a digital watt-hour meter proposed by the present invention as a preferred embodiment,
Fig. 2 and Fig. 3 respectively show an external configuration and a circuit diagram of a power signal distribution terminal apparatus for a digital watt-hour meter proposed by the present invention as a preferred embodiment,
FIG. 4 is a flowchart showing an operation state of a power signal distribution terminal apparatus for a digital watt-hour meter proposed by the present invention as a preferred embodiment.

Hereinafter, a power signal distribution terminal apparatus for a digital watt-hour meter, which has been proposed as a preferred embodiment of the present invention, will be described in detail with reference to the accompanying drawings.

FIG. 1 is a schematic diagram showing an overall arrangement state of a power signal distribution terminal apparatus for a digital watt-hour meter proposed as a preferred embodiment of the present invention. FIGS. 2 and 3 are graphs 4 is a flow chart sequentially showing a distribution output process of a power management signal through a power signal distribution terminal apparatus for a digital watt-hour meter proposed in the preferred embodiment of the present invention. Fig. to be.

1, the digital watt-hour meter 100 in which the power-signal distribution terminal device 1 for a digital watt-hour meter according to the present invention is installed measures the amount of current that is transmitted at a high voltage from a power transmission station to a power supply TR Cumulative power amount signals accumulated at the set synchronization periods and accumulated cumulatively at the set synchronization periods are remotely transmitted to the power management institute of the country (KEPCO in Korea) through the remote transmission unit 120 composed of CDMA.

The digital watt-hour meter 1 is provided with a signal output unit 110 for externally outputting a power management signal output through the remote transmission unit 120 through a signal line L1 to limit the maximum power consumption per synchronization period By providing the power management signals of the power consumers to the power management apparatus such as the maximum power management apparatus 300 or the power demand prediction apparatus 300 'for efficiently distributing surplus power in real time, the plurality of power management apparatuses 300 , 300 ') efficiently manage the power consumption of the power consumer through the power management signals output in real time.

Here, the power management signal of the digital watt-hour meter 100 is a sum of the integrated power amount signal output from the integrated power output terminal 111 of the signal output unit 110 and the synchronization period signal output through the synchronization period signal output terminal 112 . *** Unused symbol '113' on the drawing is a common terminal ***

1 to 4, the power management signal distribution terminal apparatus 1 according to the present invention includes a power management signal distribution terminal apparatus 1 according to an embodiment of the present invention, Distributes the power management signals including the power signal and the synchronization period signal to simultaneously provide power management signals to a plurality of power management apparatuses such as the maximum power management apparatus 300 and the power demand prediction apparatus 300 ' Various power management apparatuses are a kind of dedicated distribution terminals that receive a power management signal including a cumulative power signal and a synchronization period signal output through a single output terminal of a digital watt-hour meter in real time.

The power management signal distribution terminal device 1 for digital watt-hour meter is configured to distribute the power management signals output from the output terminals 111 and 112 formed in the signal output section 110 of the digital watt- A receiving signal receiving unit 10; A signal distributor (20) distributing the power management signals received by the signal receiver (10) through a plurality of distribution circuit paths; A plurality of modulation processing units 30 for modulating each of the power management signals distributed in the signal distributing unit 20 and generating distribution power management signals corresponding to signal strengths corresponding to the power management signals output from the digital watt- Wow; A plurality of distribution output units (40) for outputting distribution power management signals generated by the modulation processing unit (30) generated through the distribution terminals (41, 42); And a power supply unit 50 for supplying power according to the driving of the modulation processing unit 30. [

In one embodiment of the present invention, a signal distribution unit 20 having three distribution circuit paths is disposed, a modulation processing unit 30 and a distribution output unit 40 are disposed in each of these distribution circuit paths, The power management signals distributed to the three distribution circuit paths via the power distributor 20 are distributed and output through the modulation processing unit 30 and the distribution output unit 40 disposed on the distribution circuit path of each signal distribution unit 20 .

At this time, each of the modulation processing units 30 demultiplexes the integrated power amount signal and the synchronization period signal distributed through the distribution output unit 40, modulates the integrated power amount signal, and outputs the distribution integration amount signal, which is obtained by modulating the distributed integrated power amount signal, And outputs the generated distribution synchronization period signal through the distribution terminals 41 and 42 formed in the distribution output unit 40. [ *** Unused symbol '43' on the drawing is a common terminal ***

Therefore, the power management signal distribution terminal apparatus 1 for a digital watt hour meter according to the present embodiment distributes the integrated power amount signal and the synchronization period signal, which are power management signals output from the digital watt hour meter 100, To the power management apparatus connected through the signal line L2 and the distribution integrated power amount distribution terminal 41 of the distribution output unit 40 and the distribution integrated power amount signal outputted through the distribution synchronization period signal distribution terminal 42 The distributed power management signal including the distributed synchronization period signal is transmitted in real time to efficiently manage the power usage of the power consumer through the plurality of power management devices 300 and 300 '.

The distribution power management signal applied to each of the power management devices 300 and 300 'through the distribution output unit 40 is the same as the power management signal output from the digital watt-hour meter 100 by the modulation processing unit 30 As a result of having a signal strength, it is possible to prevent the signal intensity from being weakened by the distribution.

To this end, in the present embodiment, the modulation processing section 30 is constituted by a signal conversion unit 31 for converting a power management signal distributed by the signal distribution unit 20 into a transmission signal, And a modulation signal unit for modulating the transmission signal transmitted through the transmission unit 32 and generating a distributed power management signal of a signal strength corresponding to the power management signal, (33).

The modulation processing unit 30 receives the external power from the power supply unit 50 and generates a distributed power management signal by generating a transmission signal, transmitting the generated transmission signal, and modulating the transmitted transmission signal Stable.

In the present embodiment, the modulation signal unit 33 is further provided with an amplifying unit 34 for amplifying the distributed power management signal through the external power source applied from the power source unit, The signal intensity of the distributed power management signal output to the distribution output unit 40 through the amplifying unit 34 is arbitrarily amplified when the signal intensity is abnormally lost due to the signal line L2 formed between the signal lines 300 and 300 ' So that the power management signals distributed to the power management apparatuses 300 and 300 'are stably applied.

In the present embodiment, a signal receiving unit 10 that is improved by the transmission unit 32 and connected to the digital watt-hour meter 100 through the signal line L1 by the transmission unit 32, And the distribution output unit 40 connected to the management apparatuses 300 and 300 'are electrically disconnected.

In this configuration, the signal receiving unit 10 electrically connected to the digital watt-hour meter 100 through the signal line L1, and the distribution output unit 30 electrically connected to the power management devices 300 and 300 'through the signal line L2, The back electromotive force that is erroneously input from the power management apparatus 300 or 300 'electrically connected to the distribution output unit 40 is detected by the digital watt-hour meter 100 because the power unit 40 forms an electrically disconnected state by the transmission unit 32. [ So that the phenomenon that the digital watt-hour meter 100 is electrically damaged can be prevented.

To this end, in the present embodiment, the transmission unit 32 is constituted by a light emitting diode circuit 32a for emitting light of a calling signal generated in the signal conversion unit 31, and a light emitting diode circuit 32b for emitting a light- And a light receiving diode circuit 32b for receiving the transmission power control signal, and optically transmits the transmission signal, which is obtained by converting the distributed power management signal, to the modulation signal unit 33. [

In the present embodiment, the spaced light emitting diode circuits 32a and the light receiving diode circuits 32b are individually disposed in the cage 32c in which the dark room is formed, so that stable transmission of optical signals is possible.

The digital watt-hour meter 100 and the power management apparatuses 300 and 300 'electrically form the non-contact state, so that the power management apparatus 30 electrically connected to the distribution output unit 40 via the signal line L2, The back electromotive force is electrically disconnected by the transmission unit 32 even if the back electromotive force is erroneously input from the power management apparatus 300 or 300 ' Thereby preventing the digital watt-hour meter 100 from being electrically damaged.

4, the initial signal receiving unit 10 receives the signal from the signal output unit 10 of the digital watt-hour meter 100, The integrated power amount signal and the synchronization period signal are separately received through a signal line, and the received power amount signal and the synchronization period signal are received by the three distribution circuits 20 through the signal distributor 20, Distributed along the path.

Then, the modulation processing section 30 disposed on each of the distribution circuit paths modulates the integrated power amount signal and the synchronization period signal distributed from the signal distribution section 20, respectively, and outputs the integrated power amount signal output from the digital watt- And generates a distribution integrated power amount signal and a distribution synchronization period signal of the signal intensity corresponding to the signal and outputs the same through the distribution output unit 40.

That is, the modulation processing unit 30 converts the integrated power amount signals and the distribution synchronization period signals distributed along the distribution circuit path of the signal distribution unit 20 into a transmission signal, The outgoing signal is optically transmitted to each modulation signal unit 33 through the transmission unit 32 of the optical transmission type including the light emitting diode circuit 32a and the light receiving diode circuit 32b.

Thereafter, the modulation signal unit 33 modulates the transmission signal transmitted through the transmission unit 32 and outputs the integrated power amount signal of the signal strength corresponding to the integrated power amount signal and the synchronization period signal output from the digital watt- And a distribution synchronization period signal and outputs the signal through the distribution terminals 41 and 42 of the distribution output section 40.

The modulation processing unit 30 includes a distribution output unit 40 connected to each of the power management devices 300 and 300 'through a signal line L2 and a signal output unit 40 connected to the digital watt-hour meter 100 via a signal line L1. The back electromotive force that is erroneously input from the power management apparatuses 300 and 300 'is arbitrarily applied to the digital watt-hour meter 100 so that the electrical damage of the digital watt- This phenomenon can be prevented.

The distributed power management signal output through each of the distribution output units 40 is input to the modulating signal unit 33 by the modulation signal unit 33 so as to have a signal strength corresponding to the integrated power amount signal and the synchronization period signal that are output first in the digital watt- The power management units 300 and 300 'connected to the distribution output unit 40 via the signal line L2 in a wired manner receive the same distributed power management signal as the power management signal output in real time from the digital watt- It is provided in real time, and it is aimed at stable management according to electric power consumption of electric power consumers.

1. Power management signal distribution terminal equipment for digital watt hour meter
10. Signal receiving section 11. Integrated power receiving terminal
12. Synchronous period signal reception terminal 13. Common terminal
20. Signal distribution section
30. Modulation processing unit 31. Signal conversion unit
32. Transmission unit 32a. Light-emitting diode circuit
32b. Light receiving diode circuit 32c. Cage
33. Modulation signal unit 34. Amplification unit
40. Distribution output section 41. Integrated power distribution section
42. Synchronization period signal distribution terminal 43. Common terminal
50. Power section 51. Power input port
100. Digital watt hour meter 110. Signal output unit
111. Integrated power output terminal 112. Synchronous cycle signal output terminal
113. Common terminal
300. Maximum power management device 300 '. Power demand forecasting device
L1, L2. Signal line

Claims (4)

A signal receiving unit for individually receiving power management signals output from respective output terminals formed in a signal output unit of the digital watt-hour meter through reception terminals;
A signal distributing unit for distributing the power management signals received by the signal receiving unit through a plurality of distribution circuit paths;
A plurality of modulation processing units for modulating each of the power management signals distributed in the signal distributing unit to generate a distributed power management signal corresponding to a signal strength corresponding to the power management signal output from the digital watt hour meter;
A plurality of distribution output units for outputting distribution power management signals generated by the modulation processing unit to the distribution terminals; And
And a power supply unit for supplying power according to driving of the modulation processing unit,
A distribution power management signal having the same signal strength as the power management signals output from the signal output section of the digital watt-hour meter through the plurality of distribution output sections is outputted through the distribution output section without loss of signal intensity according to the signal distribution,
Each modulation processing section includes a signal conversion unit for converting the power management signal distributed by the signal distribution unit into an outgoing signal, a transmission unit for transmitting the outgoing signal generated in the signal conversion unit, and a transmission unit for transmitting And a modulated signal unit for modulating the signal to generate a distributed power management signal of the signal strength corresponding to the power management signal,
Wherein the transmission unit includes a light emitting diode circuit that emits a light emitting signal generated in the signal conversion unit and a light receiving diode circuit that optically receives an outgoing signal emitted from the light emitting diode circuit, And configured to optically transmit one outgoing signal to the modulated signal unit,
And to prevent electrical damage to the digital watt hour meter due to a back electromotive force that is erroneously input from an external device. The digital watt-hour meter according to claim 1, wherein the power management signal of the digital watt-hour meter includes an integrated power amount signal outputted from an integrated power amount output terminal of an output terminal part and a synchronization period signal outputted through a synchronization period signal output terminal. Power management signal distribution terminal device. The power management system according to claim 1, wherein the distribution power management signal output to each distribution output unit includes a distribution integrated power amount signal output through a distribution integrated power amount output terminal of the distribution output unit, Wherein the power management signal distributing terminal device comprises:


delete
KR1020150131663A 2015-09-17 2015-09-17 Distribution terminal apparatus of power management signal for digital watt-hour meter KR101763846B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150131663A KR101763846B1 (en) 2015-09-17 2015-09-17 Distribution terminal apparatus of power management signal for digital watt-hour meter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150131663A KR101763846B1 (en) 2015-09-17 2015-09-17 Distribution terminal apparatus of power management signal for digital watt-hour meter

Publications (2)

Publication Number Publication Date
KR20170033650A KR20170033650A (en) 2017-03-27
KR101763846B1 true KR101763846B1 (en) 2017-08-01

Family

ID=58497036

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020150131663A KR101763846B1 (en) 2015-09-17 2015-09-17 Distribution terminal apparatus of power management signal for digital watt-hour meter

Country Status (1)

Country Link
KR (1) KR101763846B1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003057271A (en) * 2001-08-09 2003-02-26 Osaki Electric Co Ltd Watthour meter using hall element
JP2003133864A (en) * 2001-10-30 2003-05-09 Mitsubishi Electric Corp Parallel power distribution synthesizing amplifier

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003057271A (en) * 2001-08-09 2003-02-26 Osaki Electric Co Ltd Watthour meter using hall element
JP2003133864A (en) * 2001-10-30 2003-05-09 Mitsubishi Electric Corp Parallel power distribution synthesizing amplifier

Also Published As

Publication number Publication date
KR20170033650A (en) 2017-03-27

Similar Documents

Publication Publication Date Title
RU2017144893A (en) INTELLECTUAL MANAGEMENT SYSTEM OF ENERGY GENERATING EQUIPMENT
KR101251794B1 (en) Power measuring system
Cetinkaya et al. A DASH7-based power metering system
JP2013017268A (en) Power management system
US11277026B2 (en) Power management server, power management method, and power management system
US10771869B2 (en) Radio and advanced metering device
KR101763846B1 (en) Distribution terminal apparatus of power management signal for digital watt-hour meter
US10418823B2 (en) Power transmission system including power transmitter and power receiver
ES2807796T3 (en) Power monitoring system
JP2013117484A (en) Power measurement system
JP2018174679A (en) Power conversion device, power conversion system, and DC power supply device
EP2902792A1 (en) Power measurement
US11881711B2 (en) Power management server and power management method
KR102127731B1 (en) Intelligent switchboard and power control method using it
KR101763851B1 (en) Power demand operating system having monitoring function of real time power demand
JP2018164245A (en) Gateway device, measurement system, and measurement method
KR20070016477A (en) Self-powered type sensor communication module for the transformer on electricity pole and load management system using the same
KR101697015B1 (en) Power monitoring system
CN106469942B (en) Power monitoring system
KR20210126373A (en) Distrbution system
KR102305077B1 (en) Power monitoring system
US10069305B2 (en) Apparatus and procedure for the immission of electric energy
JP2013240131A (en) Management device and management system
EP4084274A1 (en) Electrical power management system and electrical power management method
KR101736587B1 (en) Power monitoring system

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant