WO2014147959A1 - Système de distribution et dispositif de limitation de courant - Google Patents

Système de distribution et dispositif de limitation de courant Download PDF

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Publication number
WO2014147959A1
WO2014147959A1 PCT/JP2014/000915 JP2014000915W WO2014147959A1 WO 2014147959 A1 WO2014147959 A1 WO 2014147959A1 JP 2014000915 W JP2014000915 W JP 2014000915W WO 2014147959 A1 WO2014147959 A1 WO 2014147959A1
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WO
WIPO (PCT)
Prior art keywords
power
limiting device
current limiting
distribution system
signal
Prior art date
Application number
PCT/JP2014/000915
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English (en)
Japanese (ja)
Inventor
稲次　崇
Original Assignee
パナソニック株式会社
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 パナソニック株式会社 filed Critical パナソニック株式会社
Priority to CN201480016514.4A priority Critical patent/CN105191038A/zh
Publication of WO2014147959A1 publication Critical patent/WO2014147959A1/fr

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/006—Calibration or setting of parameters
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
    • H02H3/10—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current additionally responsive to some other abnormal electrical conditions
    • H02H3/105—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current additionally responsive to some other abnormal electrical conditions responsive to excess current and fault current to earth
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00002—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by monitoring
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
    • H02J13/00034—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving an electric power substation
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
    • H02J13/00036—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving switches, relays or circuit breakers
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
    • H02J13/00036—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving switches, relays or circuit breakers
    • H02J13/0004—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving switches, relays or circuit breakers involved in a protection system
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • 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
    • Y04S10/00—Systems supporting electrical power generation, transmission or distribution
    • Y04S10/30—State monitoring, e.g. fault, temperature monitoring, insulator monitoring, corona discharge

Definitions

  • the present invention relates to a power distribution system including a current limiting device that limits a current flowing through an electric circuit, and a current limiting device used in the power distribution system.
  • a current limiting device also called an ampere breaker or a limiter
  • a current limiting device also called an ampere breaker or a limiter
  • FIG. 1 A configuration example of a conventional residential distribution board is shown in FIG.
  • a current limiting device 101 and a leakage breaker 102 are connected in series on the primary side circuit, and a branch breaker 103 is connected to the load side terminal of the leakage breaker 102. It is arranged.
  • the current limiting device 101 includes a current detection element 101a and an overcurrent detection unit 101b as shown in FIG.
  • the overcurrent detection unit 101b performs arithmetic processing in the arithmetic circuit 101c, and the current value detected by the current detection element 101a exceeds a rated current value (for example, 30 A) that matches the contracted capacity with the power supply company. Detect whether or not.
  • the overcurrent detection unit 101b detects that a current exceeding the rated current value is flowing, the arithmetic circuit 101c closes the contact of the relay 101d and connects the external leakage breaker 102 via the signal transmission unit 101e. Send a shutoff signal.
  • the earth leakage breaker 102 When the earth leakage breaker 102 receives the interruption signal, the earth leakage breaker 102 operates the contact device provided in the voltage phase to perform an interruption operation to open the contact, and interrupts the power supply to the load side terminal.
  • the earth leakage breaker 102 also has a unique current detection element in the voltage phase, and has a function of performing an interruption operation when an overcurrent is detected using the current detection element and the trip device.
  • a dedicated device having a specific rated current value that matches the contracted capacity with the power supply company is selected as the current limiting device arranged in the conventional distribution board.
  • the current limiting device arranged in the conventional distribution board.
  • the electric power company A and the customer make a contract with “meter-rate lamp B”
  • there are seven types of contracts from 10A to 60A and it is necessary to install current limiting devices with different amperage values according to the respective contracts. . Therefore, if the contract is changed after the current limiting device is once installed in the distribution board, there is a trouble and cost burden for the power supplier to replace it with a new current limiting device having a different rated current value. .
  • the power supplier changes the rated current value of the current limiting device 101 using a dedicated setting device or a rating setting knob 101f provided in the current limiting device 101 as shown in FIG. 4 outside the customer's home. Cases are also envisaged. However, even in this case, it is necessary for the customer to be present, and the work man-hours of the worker on the power supplier side are generated.
  • the present invention has been made in view of the above problems, and a power distribution system in which the rated current value in a current limiting device can be easily changed by remote operation without requiring the effort of a consumer or a power supplier.
  • the purpose is to provide.
  • Another object of the present invention is to provide a current limiting device for use in this power distribution system.
  • the present invention is connected to a power meter that is inserted in a power circuit between a power supplier and a consumer and measures power consumption, and a power circuit from the power meter is connected.
  • a distribution board comprising: a distribution board that distributes the current distribution board, wherein the distribution board is provided with a current limiting device that limits a current flowing through the electric circuit, and the current limiting device flows through a voltage phase of the electric circuit.
  • An overcurrent detection unit that detects that a vector sum of currents exceeds a predetermined rated current value, a communication unit for communicating with the power meter, and the predetermined signal based on a setting signal acquired via the communication unit And an arithmetic unit for setting the rated current value of the variable current value to be changeable.
  • the current limiting device further includes a signal sending unit that sends a cut-off signal to an external circuit breaker when the overcurrent detection unit detects that the predetermined rated current value is exceeded. It is preferable.
  • the signal sending unit sends a cut-off signal to the main circuit breaker based on a command from the calculation unit.
  • the current limiting device further includes a timing unit, and the signal sending unit sends a cutoff signal preferentially to a predetermined branch breaker based on a command from the calculation unit, In the case where the amount of decrease in current is insufficient even after the lapse of a fixed time measured by the time measuring unit, it is preferable to send a cutoff signal to the main circuit breaker.
  • the circuit breaker has a built-in relay device.
  • the communication unit performs any one of wired communication, wireless communication, and power line communication.
  • the current limiting device is preferably configured to be the same module as the branch breaker.
  • the present invention is a current limiting device used in the power distribution system.
  • the communication unit provided in the current limiting device receives a setting signal for changing the setting to a predetermined rated current value from the power meter outside the distribution board, and the rated current value is received.
  • the rated current value is received.
  • FIG. 1 is an overall configuration diagram of a power distribution system according to an embodiment of the present invention.
  • FIG. 2A is an external view of a current limiting device provided in the power distribution system
  • FIG. 2B is a functional block diagram of the current limiting device.
  • FIG. 3 is an overall configuration diagram of a power distribution system according to the second modification of the embodiment.
  • FIG. 4 is an overall configuration diagram of a conventional distribution board.
  • FIG. 5 is a functional block diagram of the current limiting device provided in the distribution board.
  • the power distribution system 1 includes a power meter 2 and a distribution board 3.
  • the power meter 2 is a device that measures the amount of power used by being inserted into the electrical path between the power supplier S and the customer, and is installed for metering the customer.
  • the power meter 2 is known as a smart meter in a technology called a smart grid that enhances the reliability and efficiency of the entire power network.
  • the power meter 2 can supply power to the customer according to the supply / demand balance of the power supplier S and the customer. It is used to realize demand response that optimizes usage.
  • the power meter 2 is connected to the power supplier S through two-way communication via wide area communication or power line communication (PLC).
  • the electric power supplier S can remotely monitor the meter reading value of the electric power meter 2 and has a remote opening / closing function for controlling the electric power supply so that it can be quickly cut off when the electric power is illegally used.
  • the power meter 2 does not have a function of directly interrupting the electric circuit, and even if an overcurrent is detected, the electric circuit is interrupted safely and appropriately by the circuit breaker in the distribution board 3. It is assumed that
  • the distribution board 3 is connected to the electric circuit from the power meter 2 and has a function of distributing the electric power supplied from the electric power supplier S within the consumer.
  • the current limiting device 4 the electric leakage A circuit breaker 5 and a branch breaker 6 are provided.
  • a current limiter 4 and a leakage breaker 5 are directly connected to the primary circuit of the distribution board 3 and a branch breaker 6 is connected to the load side terminal of the leakage breaker 5.
  • the power supply side terminal of the current limiting device 4 is connected to a power supply side electric wire such as a single-phase three-wire system of the primary side electric circuit.
  • the load side terminal of the current limiting device 4 and the power source side terminal of the earth leakage breaker 5 are connected by the electric wire of the primary side electric circuit.
  • the current limiting device 4 and the earth leakage circuit breaker 5 constitute a main circuit breaker.
  • “40A” in the current limiting device 4 shown in FIG. 1 and “50A” in the leakage breaker 5 show examples of rated current values at which the breaking operation is performed.
  • the current limiting device 4 detects that a current exceeding a rated current value as a predetermined upper limit value flows in order to limit the current flowing in the electric circuit.
  • the current limiting device 4 is provided to limit the use of power above a predetermined level based on, for example, a contract with a power supply company.
  • the current limiting device 4 detects a current exceeding the rated current value, the current limiting device 4 outputs a cutoff signal (also referred to as a trip signal) to the external leakage breaker 5 via the signal line 7.
  • the current limiting device 4 can also output a cut-off signal to a specific branch breaker 6 via another signal line (not shown).
  • the earth leakage breaker 5 includes a current detection element and a tripping device, and when the leakage current exceeding a predetermined value is detected in the electric circuit, the tripping device is operated to perform a breaking operation (trip operation or the like).
  • the earth leakage circuit breaker 5 operates when the trip device is operated when the current limiting device 4 detects a current exceeding the rated current value and outputs a breaking signal, and the external terminal receives this breaking signal. To cut off the power supply to the load side terminal.
  • the branch breaker 6 is configured by arranging a plurality of tripping devices in parallel, and conducts and cuts off each electric circuit of the branch circuit branched into a plurality.
  • each branch circuit is connected to various loads such as a lighting device and a personal computer, as well as an air conditioner and an IH device.
  • the current limiting device 4 includes a current detection element 44, an arithmetic circuit 45, an overcurrent detection unit 46, a communication unit 47, an output relay 48, a power circuit 49, a signal output terminal 50, a signal line 51, a cutoff signal transmission unit 52, a display.
  • a unit 53 and a time measuring unit 54 are provided.
  • the current limiting device 4 is constituted by a container made of an insulating material.
  • This current limiting device 4 corresponds to a three-phase electric circuit having a voltage phase (L1 phase), a voltage phase (L2 phase), and a neutral phase, as two terminal portions for connecting in series to the electric circuit, Power supply side terminals 41a, 41b, 41c and load side terminals 42a, 42b, 42c are provided. These power supply side terminals 41a, 41b, 41c and the load side terminals 42a, 42b, 42c are electrically connected by conductors 43a, 43b, 43c provided separately.
  • Each of the conductors 43a and 43b connected to the voltage phase (L1 phase and L2 phase) has a current detector (CT) that detects a current flowing through each conductor as a current detection unit that detects a current for each voltage phase of the electric circuit.
  • CT current detector
  • the current detection elements 44a and 44b are connected to an arithmetic circuit 45 as an arithmetic processing unit, and the output signals of the current detection elements 44a and 44b are input to the arithmetic circuit 45 for arithmetic processing.
  • the arithmetic circuit 45 performs a comparison operation using the outputs of the current detection elements 44a and 44b, and the sum (vector sum) of the currents flowing through the two conductors 43a and 43b connected to the voltage phase is a predetermined upper limit value (rated current). ) Is exceeded.
  • the overcurrent detection unit 46 the current detection elements 44a and 44b and the arithmetic circuit 45 detect an overcurrent by a mechanical operation based on an electromagnetic force.
  • the communication unit 47 has a function of communicating with the power meter 2 installed outside, and based on the setting signal acquired from the power meter 2, a rated current that becomes a threshold when calculating the overcurrent in the arithmetic circuit 45 It has a function as an upper limit value setting unit that sets the value I th changeably.
  • Communication between the power meter 2 and the communication unit 47 includes wired communication, short-range wireless communication (such as ZigBee (trademark)), and power line communication (PLC) that realizes high-speed communication by superimposing an information signal on an electric signal flowing through the power line. ) And the like.
  • the communication unit 47 can improve communication connection performance by selecting a communication means that is optimal for the communication environment, and does not require a special device member, so that the power meter 2 and the current limiting device 4 can be inexpensively connected. Two-way communication between the two.
  • the arithmetic circuit 45 sends an interruption signal to the earth leakage breaker 5 based on the rated current value I th set in the communication unit 47. That is, the arithmetic circuit 45 sums the detected current values I 1 and I 2 output from the current detecting elements 44a and 44b by arithmetic processing, and compares the sum of the detected current values of all the electric paths with the rated current value I th. and, the detected current value to determine whether more than the rated current value I th. Specifically, the arithmetic circuit 45 outputs a drive signal for operating the output relay 48 when I 1 + I 2 > I th .
  • the output relay 48 turns on the contact based on the drive signal from the arithmetic circuit 45 and outputs the signal to the signal output terminal 50.
  • the contact of the output relay 48 is closed and turned on, the voltage from the power supply circuit 49 is applied to the signal output terminal 50 and is output from the signal output terminal 50 to the signal line 51 as a cutoff signal.
  • a plurality of output relays 48 for sending a cut-off signal are provided, and the leakage breaker 5 and any branch breaker 6 can be controlled.
  • the output relay 48, the power supply circuit 49, the signal output terminal 50, and the signal line 51 constitute a cutoff signal transmission unit 52.
  • the power supply circuit 49 has input terminals connected to the conductors 43a, 43b, and 43c, and receives a power supply from the electric circuit to supply a predetermined power supply voltage to the arithmetic circuit 45 and the output relay 48.
  • the display unit 53 includes a light emitting element such as an LED provided on the operation surface of the current limiting device 4, an indicator lamp, and the like.
  • a light emitting element such as an LED provided on the operation surface of the current limiting device 4, an indicator lamp, and the like.
  • the timekeeping unit 54 has a timekeeping function based on the number of clocks from the CPU.
  • the shut-off signal sending unit 52 Based on the control from the arithmetic circuit 45, the shut-off signal sending unit 52 has a function of preferentially sending a shut-off signal to a specific branch breaker 6 to which a load with high power consumption such as an air conditioner is connected.
  • the interruption signal sending unit 52 is a main circuit breaker based on the control from the arithmetic circuit 45 when the amount of decrease in current is insufficient even after the lapse of a fixed time counted by the timing unit 54. The interruption control of the earth leakage breaker 5 is performed.
  • the current limiting device 4 can shut off the leakage breaker 5 after a certain time has elapsed by shutting off the specific branch breaker 6 first. For this reason, when it becomes less than a rated current value only by the interruption
  • the rated current value of the current limiting device 4 can be easily changed according to the setting signal received by the communication unit 47 from the power meter 2. For this reason, even when the contract of the rated current value of the current limiting device 4 is changed, the rated current value can be easily obtained from outside the customer's premises without the work man-hours of the operator of the power supplier S and the customer's participation. Can be remotely controlled. Moreover, since the current limiting device 4 can be set so that a plurality of rated current values can be changed, even when the contract of the rated current value of the current limiting device 4 is changed, there is no need to replace it with another new current limiting device 4. Management costs can be reduced.
  • Modification 1 A first modification of the present embodiment will be described.
  • the earth leakage breaker 5 and the branch breaker 6 having a breaking function have a relay device. Even when one of the circuit breaker 5 and the branch breaker 6 is cut off by detecting the overcurrent by the mechanism of the relay device, the load current is once reduced and then transmitted from the current limiting device 4. The circuit can be restored by the command signal. Therefore, in the first modification, in addition to the effects of the above-described embodiment, it is possible to further save the labor of the customer.
  • a predetermined algorithm see Japanese Patent Application Laid-Open No. 2010-148165 or the like
  • reduces the influence on the consumer may be used for the timing of returning the current using the relay device.
  • the current limiting device 4 is configured to be the same module as the branch breaker 6.
  • the current limiting device 4 can be arranged and fixed at the position where the branch breaker 6 is installed, and the power distribution system 1 can be configured without preparing a special fixing member, which is inexpensive.
  • the space for installing the current limiting device 4 in the distribution board 3 can be omitted, further miniaturization can be achieved.
  • the present invention is not limited to the configuration of the above embodiment, and various modifications can be made without departing from the spirit of the invention.
  • the current limiter 4 disconnects its specific circuit and interrupts the circuit. It is possible to do it.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Distribution Board (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

L'objectif de la présente invention est de permettre aux paramètres de la valeur de courant nominale d'un dispositif de limitation de courant (4) dans un système de distribution (1) d'être changés facilement par une commande à distance, en ne plaçant pas de coût indirect sur le consommateur ou le fournisseur d'énergie (S). Le dispositif de limitation de courant (4) disposé sur une carte de distribution (3) dans le système de distribution (1) comprend : une unité de détection de surintensité (46) pour détecter que la somme vectorielle de courants circulant dans la phase de tension d'un circuit électrique dépasse une valeur de courant nominal prescrite ; une unité de communication (47) pour communiquer avec un wattmètre (2) ; et une unité de calcul (45) pour paramétrer de manière variable une valeur de courant nominal prescrite sur la base d'un signal de paramétrage acquis par l'intermédiaire de l'unité de communication (47). Cette configuration permet à la valeur de courant nominal d'un dispositif de limitation de courant (4), avec aucun coût indirect qui n'est placé sur le consommateur ou le fournisseur d'énergie (S), d'être facilement changé par une commande à distance.
PCT/JP2014/000915 2013-03-19 2014-02-21 Système de distribution et dispositif de limitation de courant WO2014147959A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201480016514.4A CN105191038A (zh) 2013-03-19 2014-02-21 配电系统以及电流限制装置

Applications Claiming Priority (2)

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JP2013-055862 2013-03-19
JP2013055862A JP2014183637A (ja) 2013-03-19 2013-03-19 配電システム及び電流制限装置

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WO2014147959A1 true WO2014147959A1 (fr) 2014-09-25

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Cited By (3)

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JP2018129760A (ja) * 2017-02-10 2018-08-16 株式会社竹中工務店 分電システム
JP2021050986A (ja) * 2019-09-24 2021-04-01 株式会社Ｗａｖｅ Ｅｎｅｒｇｙ 電力計リレー、盤、及び、自家消費型の電力システム
FR3140441A1 (fr) * 2022-09-29 2024-04-05 Sagemcom Energy & Telecom Sas Surveillance et optimisation de la consommation électrique

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US9613523B2 (en) * 2014-12-09 2017-04-04 Unilectric, Llc Integrated hazard risk management and mitigation system
JP5890564B1 (ja) * 2015-06-05 2016-03-22 光洋電子工業株式会社 分電盤システム
CN108476540B (zh) * 2016-02-18 2022-03-15 松下知识产权经营株式会社 终端机和终端机的控制方法、以及使用该终端机的无线通信系统
CN106451461B (zh) * 2016-10-20 2018-11-27 广东电网有限责任公司电力调度控制中心 备自投装置的负荷均分启动方法及装置

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JP2002171660A (ja) * 2000-12-04 2002-06-14 Sanyo Electric Co Ltd 電流制限装置
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Publication number Priority date Publication date Assignee Title
JP2018129760A (ja) * 2017-02-10 2018-08-16 株式会社竹中工務店 分電システム
JP7127963B2 (ja) 2017-02-10 2022-08-30 株式会社竹中工務店 分電システム
JP2021050986A (ja) * 2019-09-24 2021-04-01 株式会社Ｗａｖｅ Ｅｎｅｒｇｙ 電力計リレー、盤、及び、自家消費型の電力システム
JP7001282B2 (ja) 2019-09-24 2022-02-03 株式会社Wave Energy 電力計リレー、盤、及び、自家消費型の電力システム
FR3140441A1 (fr) * 2022-09-29 2024-04-05 Sagemcom Energy & Telecom Sas Surveillance et optimisation de la consommation électrique
EP4350925A1 (fr) * 2022-09-29 2024-04-10 Sagemcom Energy & Telecom SAS Surveillance et optimisation de la consommation electrique

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