WO2014034861A1 - 分電盤、消費電力管理システム、及びこれらの製造方法 - Google Patents
分電盤、消費電力管理システム、及びこれらの製造方法 Download PDFInfo
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- WO2014034861A1 WO2014034861A1 PCT/JP2013/073352 JP2013073352W WO2014034861A1 WO 2014034861 A1 WO2014034861 A1 WO 2014034861A1 JP 2013073352 W JP2013073352 W JP 2013073352W WO 2014034861 A1 WO2014034861 A1 WO 2014034861A1
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- breaker
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- distribution board
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- 238000009826 distribution Methods 0.000 title claims abstract description 62
- 238000004519 manufacturing process Methods 0.000 title claims description 11
- 238000000034 method Methods 0.000 title description 5
- 238000003860 storage Methods 0.000 claims description 35
- 238000005259 measurement Methods 0.000 claims description 10
- 238000012544 monitoring process Methods 0.000 claims description 5
- 238000012986 modification Methods 0.000 description 20
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- 238000010586 diagram Methods 0.000 description 18
- 238000012545 processing Methods 0.000 description 16
- 238000001514 detection method Methods 0.000 description 15
- 238000007726 management method Methods 0.000 description 15
- 238000009434 installation Methods 0.000 description 10
- 239000000758 substrate Substances 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
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- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
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- 230000035515 penetration Effects 0.000 description 1
- 238000004148 unit process Methods 0.000 description 1
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Classifications
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- 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
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/40—Wall-mounted casings; Parts thereof or accessories therefor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/015—Boards, panels, desks; Parts thereof or accessories therefor
- H02B1/04—Mounting thereon of switches or of other devices in general, the switch or device having, or being without, casing
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B3/00—Apparatus specially adapted for the manufacture, assembly, or maintenance of boards or switchgear
-
- 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
- H02J13/00001—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 the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/015—Boards, panels, desks; Parts thereof or accessories therefor
- H02B1/04—Mounting thereon of switches or of other devices in general, the switch or device having, or being without, casing
- H02B1/056—Mounting on plugboards
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49117—Conductor or circuit manufacturing
Definitions
- the present invention relates to a distribution board, a power consumption management system, and manufacturing methods thereof.
- a distribution board with a sensor having a function of measuring current or power includes a main breaker, a plurality of main bars (or main plates, hereinafter abbreviated), a branch bar (or branch plate, abbreviated below), a plurality of branch breakers, a plurality of penetration types and clamps.
- Type current sensor a plurality of signal transmission paths, a plurality of input signal ports, and a signal processing unit.
- the plurality of main bars are connected to the load side terminals of the main breaker.
- a plurality of branch bars extend from the main bar.
- the plurality of branch breakers are connected to the plurality of branch bars.
- the branch bar connects the branch breaker and the main bar.
- the current sensor is installed with respect to the electric wire connected to a load from the branch bar or the load side terminal of the main breaker.
- the plurality of signal transmission paths transmit detection signals output from the current sensor.
- the plurality of input signal ports take in detection signals transmitted through the signal transmission path.
- the signal processing unit processes detection signals captured by the plurality of input signal ports.
- An example of an object of the present invention is to provide a distribution board, a power consumption management system, and a method for manufacturing the distribution board that are easy to install.
- a distribution board includes a main bar connected to a power line, a branch bar branched from the main bar and supplying power to a load, and electrically connected to the branch bar, A breaker configured to be electrically connected to a load, limiting the current supplied to the load to a predetermined set value, and provided to the branch bar or the breaker, and to be connected to the breaker And a display unit having a display for specifying the performed load.
- the distribution board according to the embodiment of the present invention may further include a sensor unit that measures a current supplied from the main bar to the load.
- the sensor unit is attached to a part of a wiring for supplying electric power from the main bar to the load, and generates a signal corresponding to the magnitude of a current in the wiring, and an identification for specifying the sensor element
- a storage unit that stores information and operation characteristic information indicating the operation characteristic of the sensor element; and a current consumption pattern of the load that is electrically connected to the sensor element and the storage unit and is based on the signal from the sensor element
- an output unit that outputs the identification information and the operation characteristic information.
- the breaker is provided with a display for identifying a load that is scheduled to be connected to the breaker, and the main bar, the branch bar, the breaker, And after assembling the sensor unit, connecting a load specified by the display to the breaker.
- a power consumption management system includes the above distribution board and a control device that is electrically connected to the output unit.
- the control device receives a database in which the load and the identification information are stored correspondingly, a current consumption pattern of the load output by the output unit, and the identification information and the operating characteristic information.
- a monitoring unit that refers to a database and monitors a current consumption pattern of the load connected to the distribution board.
- the breaker is provided with a display that identifies a load that is scheduled to be connected to the breaker, and the main bar, the branch bar, and the breaker And, after assembling the sensor unit, connecting a load specified by the display to the breaker.
- the operator who installs the distribution board can easily determine which load should be connected to which breaker by the display on the display unit. For this reason, the operation
- FIG. 5 is a circuit diagram specifically showing FIG. 4 in the embodiment of the present invention. It is a figure which shows the other form of the circuit diagram shown in FIG. It is a block diagram which shows the other example of the distribution board which has a sensor which comprises the function which measures an electric current or electric power in the embodiment of this invention. It is a block diagram which shows the structure of the 1st modification of this embodiment. It is a block diagram which shows the structure of the 2nd modification of this embodiment. It is a block diagram which shows the structure of the 3rd modification of this embodiment.
- FIG. 1 is a configuration diagram illustrating an example of a distribution board and a power consumption management system according to the present embodiment.
- FIG. 2 is a configuration diagram of the distribution board and the power consumption management system shown in FIG. In FIG. 2, the display unit is not shown.
- FIG. 3 is a circuit diagram showing a schematic configuration of the distribution board and the power consumption management system of the present embodiment.
- the distribution board 100 may be, for example, a single-phase three-wire distribution board.
- the distribution board 100 includes a main breaker MB, a main bar 1, a branch bar 2, a branch breaker B, a signal processing unit 3, and a charging unit cover 4.
- the main bar 1 includes a plate-shaped main plate (see FIG. 7).
- the branch bar 2 includes a plate-like branch plate (see FIG. 7).
- the main bar 1 is made of a bar-like or plate-like conductor.
- the main bar 1 includes an L1 pole charging unit L1, an N pole power receiving unit N, and an L2 pole charging unit L2.
- a device or the like serving as a load is electrically connected to two of the charging unit L1, the charging unit N, and the charging unit L (charging units L1 and N, charging units L2 and N, or charging units L1 and L2).
- the device can be supplied with power of, for example, a single-phase 100V or a single-phase 200V.
- the main bar 1 is made of copper.
- FIG. 3 schematically shows a circuit equivalent to this connection state.
- the branch breaker B is fitted and electrically connected to the branch bars 2 of the two charging units out of the three charging units L1, L2, and N of the main bar 1, respectively.
- Two charging units among the three charging units L1, L2, and N are, for example, charging units L1 and N, and power receiving units L2 and N.
- the branch breaker B limits the current supplied to the load, which is an electrical device connected to the power source, to a predetermined set value.
- the branch bar 2 is provided with a current sensor CT (sensor element).
- the current sensor CT has a core 10 and a secondary coil 11.
- the core 10 has a ring shape.
- An induced current is generated in the core 10 by the current supplied from the main bar 1.
- the secondary coil 11 has a linear shape and is wound around the core 10. The secondary coil 11 detects an induced current generated in the core 10.
- the current sensor CT constitutes a part of a signal processing unit 3 to be described later.
- the current sensor CT can be attached to the branch bar 2.
- the core 10 is staggered with respect to another adjacent core 10 by shifting the attachment position of the core 10 to the branch bar 2 in the length direction of the branch bar 2 so that adjacent ring-shaped cores 10 do not contact each other. You may arrange
- FIG. 4 is a circuit diagram for explaining the sense voltage (Vs) detected by the sensor unit 21.
- FIG. 5 is a circuit diagram specifically showing FIG. As shown in FIG. 4, each end of the secondary coil 11 made of a linear body is connected to two terminals of the connector C. Two terminals of the connector C are connected to the sensor unit 21 through wiring on the substrate 20. In addition, a sensor unit 21, a selection line drive circuit 22, and an identification circuit 23 are connected to the substrate 20.
- the connector C is composed of 4 terminals. When the wiring of the secondary coil 11 of the current sensor CT is connected to two of these four terminals, the current detection signal of the current sensor CT is supplied to the sensor unit 21 through the two terminals.
- the short wiring S is provided in the remaining two terminals to make the two terminals conductive.
- the connector C is composed of a transmission connector and a reception connector.
- the current sensor CT is coupled to the line on the substrate 20 by coupling the transmission connector and the reception connector.
- only one connector is shown for convenience.
- the identification circuit 23 When the sensor section CT and the short wiring S are installed at the four terminals of the connector C, the identification circuit 23 outputs a signal “sensor section CT present (high: H)” indicating the presence of the sensor section CT. To do. Further, the sensor unit 21 takes in a current detection signal from the sensor unit CT. Further, the selected line driving circuit 22 selects a line L that can be used for a load (electrical equipment) from the lines L identified by the identification circuit 23 as “with sensor unit CT (high)”, and the line L It is possible to supply power via the breaker B.
- the identification circuit 23 indicates that there is no sensor section CT and that there is no sensor section CT (low: L). Is output. Further, the sensor unit 21 cannot take in a current detection signal from the sensor unit CT. Further, the selection line driving circuit 22 does not select the line L identified as “no sensor section CT (low)” by the identification circuit 23 as a line L that can be used for the load (electrical device).
- each current sensor CT and the substrate 20 may be connected by a connector unit CU including a plurality of connectors C.
- a connector unit CU including a plurality of connectors C since a plurality of current sensors CT can be attached to and detached from the sensor unit 21 with one operation, workability is good.
- the charging unit cover 4 is a member that covers a part of the main bar 1 and the branch bar 2.
- the charging unit cover 4 includes a display unit 5 provided with displays X1, X2,. Indications X1, X2,..., X6 (hereinafter sometimes collectively referred to as “indication X”) indicate names of loads to be connected to the branch breaker B.
- the display unit 5 is provided on the distribution board 100 in a state where the positional relationship between the display unit 5 and the branch breaker B is fixed. For this reason, the correspondence between the branch breaker B and the display X can be understood.
- the sensor unit 21 calculates the load current (I L ) flowing through the main bar 1 or the branch bar 2 by measuring the sense voltage (Vs).
- the sense voltage (Vs) is determined based on the value of the secondary current (Is) supplied through the secondary coil 11. That is, the sense voltage (Vs) is represented by the product of the secondary current (Is) and the sense load resistance value (Rs).
- the relationship among the sense voltage (Vs), the secondary current (Is), the sense load resistance value (Rs), and the load current (IL) is expressed by the following equation. In the following equations, “K” represents a coupling coefficient, and “N” represents the number of secondary coil turns.
- the load current (I L ) flowing through the main bar 1 or the branch bar 2 can be calculated by measuring the sense voltage (Vs).
- the sensor unit 21 shown in FIG. 5 includes a resistance switching unit (resistor circuit) 30 that switches the resistors Rn (Rn1 to Rn3), an AD converter 31, and a Vs maximum value storage circuit (hereinafter simply referred to as a storage circuit).
- a resistance switching unit resistor circuit 30 that switches the resistors Rn (Rn1 to Rn3)
- an AD converter 31, and a Vs maximum value storage circuit (hereinafter simply referred to as a storage circuit).
- a signal processing circuit having an optimum sense load resistance arithmetic circuit (resistor circuit, hereinafter simply referred to as arithmetic circuit) 33 and a storage unit 34 is provided.
- the resistance value Rs1 of the resistor Rn1 is 10 ⁇ .
- the resistance value Rs2 of the resistor Rn2 is 100 ⁇ .
- the resistance value Rs3 of the resistor Rn3 is 1000 ⁇ .
- the storage unit 34 stores identification information for identifying the current sensor CT connected to the sensor unit 21 and operation characteristic information indicating the operation characteristic of the current sensor CT.
- the identification information of the current sensor CT includes information for specifying a load to be connected to the branch breaker B to which the current sensor CT is attached. Therefore, by reading the identification information stored in the storage unit 34, it is possible to recognize which load the sensor unit 21 provided with the storage unit 34 corresponds to.
- the sense voltage (Vs) that becomes the current measurement value is first converted into a digital value by the AD converter 31 and measured by a voltage measurement unit (not shown) of the sensor unit 21.
- the sense voltage (Vs) output from the AD converter 31 is output to the storage circuit 32.
- the storage circuit 32 stores the value of the sense voltage (Vs) input from the AD converter 31 during a predetermined period (for example, 1 day, 1 hour).
- the memory circuit 32 and the arithmetic circuit 33 are supplied with a signal T for setting a predetermined time (specified time). Further, the storage circuit 32 stores the maximum value M (maximum value in the specified time) of the sense voltage (Vs) during a certain period.
- the maximum value M of the sense voltage (Vs) stored in the storage circuit 32 is output to the arithmetic circuit 33.
- the arithmetic circuit 33 selects an optimum sense load resistance value (Rs) based on the maximum value M. Specifically, the arithmetic circuit 33 is based on the maximum value M of the sense voltage (Vs) stored in the storage circuit 32, and the sense voltage (Vs) becomes a preset optimum value or a value close thereto. As described above, the sense switch resistance value (Rs) is changed by switching the analog switch (SW) of the resistance switching unit 30.
- the sense load resistance value (Rs) can be dynamically switched to the most suitable value of the input range (sensitivity, dynamic range).
- a method of selectively connecting a plurality of fixed sense loads and switching the input range a method of adjusting the input range using a variable resistor may be adopted.
- the identification circuit 23 indicates the presence of the sensor unit CT. High) "signal is output.
- the sensor unit 21 receives a current detection signal from the sensor unit CT.
- the selected line drive circuit 22 selects a line L that can be used for a load (electrical equipment) from the lines L identified by the identification circuit 23 as “with sensor unit CT (high)”. It is possible to supply power via the breaker B.
- the sensor unit 21 measures the sense voltage (Vs) based on the captured secondary current (Is) and the sense load resistance value (Rs) set in advance by the resistance switching unit 30. Thereafter, the sense voltage (Vs) is stored in the storage circuit 32 for a predetermined period (for example, one day, one hour), and the maximum value M during that period is stored. Thereafter, the maximum value M of the sense voltage (Vs) stored in the storage circuit 32 is output to the arithmetic circuit 33. The arithmetic circuit 33 switches the resistance switching unit 30 based on the maximum value M of the sense voltage (Vs) so that the sense voltage (Vs) becomes a preset optimum value, and the sense load resistance The value (Rs1 to Rs3) is changed. Thus, the sense load resistance value (Rs) is adjusted to be the most suitable value for the input range (sensitivity, dynamic range).
- the distribution board 100 At least the main bar 1 formed with the branch bar 2, the main breaker MB, the signal processing unit 3, the charging unit cover 4 having the display unit 5, and the current sensor CT are assembled. After that, it is transported to the installation location.
- the connector C is provided individually for each current sensor CT, each current sensor CT and the sensor unit 21 are connected via the connector C before being transported to the installation location.
- the connector unit CU is employed, the connection of the current sensor CT via the connector unit CU may not be made at this stage.
- the load specified by the display X is connected to the branch breaker B according to the display X on the display unit 5 at the installation location.
- the current sensor CT can be connected via the connector unit CU at the installation location.
- the load to be connected to the branch breaker B at the installation location of the distribution board 100 is facilitated by having the display unit 5. Can be specified. For this reason, the connection work of the load to the branch breaker B is simple.
- the distribution board 100 having the signal processing unit 3 alone functions as a power consumption management system.
- the connector unit CU By providing the connector unit CU, it is possible to prevent a mounting error from occurring even if the current sensor 10 and the sensor unit 21 are connected at the place where the distribution board 100 is installed.
- the current sensor 10 and the branch breaker B are already assembled before being transported to the installation site, the time for on-site work at the installation site can be reduced. Furthermore, it is possible to prevent erroneous installation when a plurality of current sensors 10 having different operating characteristics are provided on the distribution board 100.
- the sensor unit 21 that measures the current supplied from the main bar 1 to the breaker B includes a signal processing unit (resistance switching unit 30, AD converter 31, storage circuit 32, arithmetic circuit 33).
- the signal processing unit receives the current detection signal detected by the current sensor CT over a predetermined time, and determines a signal level range from the received current detection signal. Further, the signal processing unit adjusts the input range of the current detection signal according to the determination result.
- the input range sensitivity, dynamic range
- the signal processing unit includes a resistance circuit (resistance switching unit 30, arithmetic circuit 33).
- the resistance circuit includes a plurality of resistors Rn having different resistance values connected in parallel to each other.
- the resistor Rn is connected in series with the secondary coil 11.
- the resistance circuit adjusts the input range of the current detection signal to an optimum value by selecting one of the resistors Rn. With this configuration, the input range of the current detection signal can be adjusted to the optimum value by selecting one of the plurality of resistors Rn (Rn1 to Rn3) in the resistor circuit.
- the current sensor CT is attached to the branch bar (including the branch plate) 2 branched from the charging portions L1, L2, and N of the main bar (including the main plate) to which the branch breaker B is attached.
- the current sensor CT can be easily attached.
- an operation of taking a branch from the main line the branch bar 2 is connected to the branch breaker.
- it is possible to easily attach a detector for measuring power consumption by simply passing the branch bar 2 through the coil.
- the presence of the sensor unit CT is detected by the identification circuit 23 by using the four-terminal connector C and installing the short wiring S at the two terminals of the connector C.
- the identification circuit 23 it is not limited to this configuration. As shown in FIG. 6, a two-terminal connector C may be used, and the short wiring S may not be installed on the two terminals of the connector C, and detection of the sensor unit CT by the identification circuit 23 may be omitted.
- the sensor unit 21 measures the power supplied from the main bar 1 to the breaker B based on the current detection signal output from the sensor unit CT.
- the selection line driving circuit 22 causes a constant direct current load current to flow through the resistance load 40 (electrical device) on a line having a current detection signal supplied from the current sensor CT to the sensor unit 21.
- FIG. 8 is a block diagram showing a configuration of the first modification.
- the distribution board of the first modified example is different from the distribution board of the above-described embodiment in that a sensor unit 121 is provided instead of the sensor unit 21. A part of the processing content of the sensor unit 121 is different from the sensor unit 21.
- the sensor unit 121 includes a storage unit 134 similar to the storage unit 34.
- the storage unit 134 further stores a current consumption pattern assumed in a load to be connected to the branch breaker B.
- the sensor unit 121 further includes a comparison unit 135 and a warning unit 136.
- the comparison unit 135 compares the assumed consumption current pattern stored in the storage unit 134 with the actual measurement value of the consumption current pattern based on the signal from the current sensor CT.
- the warning unit 136 refers to the comparison result by the comparison unit 135 and issues a warning signal for calling attention when the measured value is different from the assumed current consumption pattern by a predetermined error or more.
- the warning unit 136 is connected to the specifying unit 137.
- the specifying unit 137 specifies the current sensor CT related to the alert signal in the vicinity of each display X on the display unit 5 based on the identification information stored in the storage unit 134, for example.
- the display unit 5 is provided with a warning lamp (presentation unit) 138 whose operation is controlled by the specifying unit 137.
- a warning lamp (presentation unit) 138 is arranged near each display X.
- the sensor unit 121 detects that the load actually connected to the branch breaker B is different from the load that should originally be connected to the branch breaker B when the distribution board 100 is operated.
- the current sensor CT is specified by the specifying unit 137, and the warning lamp 138 corresponding to the current sensor CT is turned on. This can alert the user that the load connection is incorrect.
- FIG. 9 is a block diagram showing a configuration of the second modification.
- the sensor unit 121 of the second modified example is different from the sensor unit 121 of the first modified example in that a pattern collecting unit 139 is further provided.
- the pattern collection unit 139 collects current consumption patterns obtained from the respective current sensors CT from the start of operation of the distribution board 100 until a predetermined period elapses.
- the pattern collection unit 139 obtains a reference pattern based on the collected current consumption pattern.
- the content stored in the storage unit 134 of the second modification is different from the storage unit 134 of the first modification. That is, in the first modification, the storage unit 134 (see FIG. 8) stores an assumed current consumption pattern.
- the storage unit 134 stores a reference pattern.
- the comparison unit 135 compares the reference pattern stored in the storage unit 134 with the actually measured value of the current consumption pattern based on the signal from the current sensor CT after collection.
- the warning unit 136 refers to the comparison result by the comparison unit 135 and generates a warning signal for calling attention when the actual measurement value differs from the reference pattern by a predetermined error or more.
- FIG. 9 is a block diagram showing the configuration of the third modification. As shown in FIG. 9, in the third modification, a remote control device 140 is connected to the signal processing unit 3.
- the remote control device 140 includes a database 141, a monitoring unit 142, and an energization control unit 143.
- the database 141 stores the load name, rating, and assumed current consumption pattern in association with the identification information of the current sensor CT.
- the monitoring unit 142 receives an actual measurement value of the current consumption pattern from the current sensor CT, and monitors the current consumption pattern of the load while referring to the database 141.
- the energization control unit 143 controls the energization state of the branch breaker B.
- the power distribution management system is configured by the distribution board 100 having the signal processing unit 3 and the remote control device 140.
- the current consumption pattern of the load can be monitored.
- the energization control unit 143 can operate the branch breaker B to stop the energization to the load.
- the remote control device 140 does not need to be arranged at the place where the distribution board 100 is installed. For this reason, even if it is a place different from the installation place of the distribution board 100, the distribution board 100 can be controlled.
- a Hall element can be used as a current sensor instead of a current transformer.
- (Appendix 1) a main bar connected to the power line; A branch bar branched from the main bar and supplying power to the load; A breaker that is electrically connected to the branch bar and configured to be electrically connected to the load, and that limits a current supplied to the load to a predetermined set value; A display unit provided on the branch bar or the breaker and having a display for specifying a load that is scheduled to be connected to the breaker; Distribution board equipped with.
- the sensor unit is A sensor element that is attached to a part of the wiring that supplies power from the main bar to the load and emits a signal corresponding to the magnitude of the current in the wiring;
- a storage unit for storing identification information for specifying the sensor element and operation characteristic information indicating an operation characteristic of the sensor element;
- An output unit that is electrically connected to the sensor element and the storage unit and outputs a current consumption pattern of the load and the identification information and the operating characteristic information based on the signal from the sensor element;
- the distribution board as set forth in Appendix 1.
- storage part has memorize
- the sensor unit is A comparison unit that compares the assumed current consumption pattern stored in the storage unit with an actual measurement value of the current consumption pattern based on the signal; Referring to the comparison result by the comparison unit, and a warning unit that emits a signal to call attention when it is determined that the measured value is different from the assumed current consumption pattern by a predetermined error or more;
- the distribution board as set forth in Appendix 2.
- the sensor unit is Collecting a measured value of a current consumption pattern when the load connected to the wiring is operated, and obtaining a reference pattern based on the collected measured value; and A comparison unit that compares the measured value of the current consumption pattern based on the signal emitted from the sensor element after collection with the reference pattern; Referring to the comparison result by the comparison unit, and a warning unit that emits a signal to call attention when it is determined that the actually measured value after the collection is different from the reference pattern by a predetermined error, and The distribution board as set forth in Appendix 2.
- the sensor unit is A specifying unit for specifying a sensor element related to a signal for calling attention using the identification information; A presenting unit that presents to the user the sensor element identified by the identifying unit or the branch bar or the breaker corresponding to the identified sensor element; The distribution board according to appendix 3 or appendix 4.
- the said breaker is given the display which identifies the load scheduled to be connected to the said breaker, The power distribution according to any one of appendix 2 to appendix 5, including connecting the load specified by the display to the breaker after assembling the main bar, the branch bar, the breaker, and the sensor unit. Board manufacturing method.
- the distribution board according to any one of supplementary notes 2 to 5,
- a control device electrically connected to the output unit;
- the control device includes: A database in which the load and the identification information are stored correspondingly;
- the current consumption pattern of the load output from the output unit, the identification information and the operating characteristic information are received, and after the reception, the database is referred to and the current consumption pattern of the load connected to the distribution board is monitored.
- a power consumption management system comprising:
- the said control apparatus has an electricity supply control part which controls electricity supply by outputting a control signal with respect to the said breaker,
- a display is provided on the breaker to identify a load that is scheduled to be connected to the breaker.
- the present invention relates to a distribution board, a power consumption management system, and manufacturing methods thereof.
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Abstract
Description
本発明の実施態様に係る分電盤は、前記メインバーから前記負荷へ供給される電流を測定するセンサユニットをさらに備えていてもよい。前記センサユニットは、前記メインバーから前記負荷へ電力を供給する配線の一部に取り付けられ、前記配線における電流の大きさに対応した信号を発するセンサ要素と、前記センサ要素を特定するための識別情報及び前記センサ要素の動作特性を示す動作特性情報を記憶する記憶部と、前記センサ要素及び前記記憶部と電気的に接続され、前記センサ要素からの前記信号に基づいた前記負荷の消費電流パターン並びに前記識別情報及び前記動作特性情報を出力する出力部と、を有していてもよい。
図1は、本実施形態の分電盤及び消費電力管理システムの一例を示す構成図である。図2は、図1に示す分電盤及び消費電力管理システムの構成図である。図2においては、表示部の図示を省略している。図3は、本実施形態の分電盤及び消費電力管理システムの概略構成を示す回路図である。
図1及び図2に示すように、分電盤100は、例えば単相3線の分電盤であってもよい。分電盤100は、主幹ブレーカMB、メインバー1、分岐バー2、分岐ブレーカB、信号処理部3、及び充電部カバー4を備える。メインバー1は、板状のメインプレート(図7参照)を含む。分岐バー2は、板状の分岐プレート(図7参照)を含む。
図4に示すように、線状体からなる二次コイル11の各末端部は、コネクタCの2つの端子に接続されている。そのコネクタCの2端子は、基板20上の配線を通じてセンサユニット21に接続されている。また、この基板20には、センサユニット21、選択ライン駆動回路22及び識別回路23が接続されている。
コネクタCは4端子により構成されている。これら4端子の中の2端子に電流センサCTの二次コイル11の配線が接続された場合に、その2端子を通じて電流センサCTの電流検出信号がセンサユニット21に供給される。また、4端子の中の2端子に電流センサCTが接続された場合には、残りの2端子にショート配線Sを設けてその2端子間を導通状態とする。
コネクタCは、送信コネクタと、受信コネクタとから構成される。これら送信コネクタと、受信コネクタとが結合されることで、電流センサCTが基板20上のラインに結合される。しかしながら、図面では、便宜上1つのコネクタのみが示されている。
図4に示すように、センサユニット21は、センス電圧(Vs)を測定することによって、メインバー1あるいは分岐バー2を流れる負荷電流(IL)を演算する。センス電圧(Vs)は、二次コイル11を通じて供給される二次電流(Is)の値に基づき決定される。すなわち、センス電圧(Vs)は、二次電流(Is)とセンス負荷抵抗値(Rs)との積で示される。センス電圧(Vs)と二次電流(Is)とセンス負荷抵抗値(Rs)と負荷電流(IL)との関係は、以下の式で示される。なお、以下の式において、「K」は結合係数、「N」は2次コイル巻数を示している。
図5に示されるセンサユニット21は、抵抗体Rn(Rn1~Rn3)を切り替える抵抗切替部(抵抗回路)30と、AD変換機31と、Vs最大値記憶回路(以下、単に記憶回路と称する)32と、最適センス負荷抵抗演算回路(抵抗回路、以下、単に演算回路と称する)33と、記憶部34とを有する信号処理回路が設けられている。
このセンサユニット21では、初期段階として抵抗切替部30において、例えば、センス負荷抵抗値(Rs)が「抵抗値Rs1(=10Ω)」に設定されている。
具体的には、演算回路33は、記憶回路32で記憶されたセンス電圧(Vs)の最大値Mに基づき、そのセンス電圧(Vs)が予め設定しておいた最適値又はそれに近い値となるように、抵抗切替部30のアナログスイッチ(SW)を切り替えて、センス負荷抵抗値(Rs)を変更する。
複数の固定センス負荷を択一的に接続して入力レンジを切り替える方式に代え、可変抵抗を用いて入力レンジを調整する方式を採用しても良い。
分電盤100は、少なくとも、分岐バー2が形成されたメインバー1と、主幹ブレーカMBと、信号処理部3と、表示部5を有する充電部カバー4と、電流センサCTとが組み立てられた後、設置場所まで搬送される。コネクタCが各電流センサCTについて個別に設けられている場合には、設置場所への搬送前に、各電流センサCTとセンサユニット21とをコネクタCを介して接続する。コネクタユニットCUが採用されている場合には、コネクタユニットCUを介した電流センサCTの接続はこの段階ではなされていなくてもよい。
本実施形態では、信号処理部3を有する分電盤100単体で、消費電力管理システムとして機能している。
次に、上述の実施形態の第1の変形例について説明する。図8は、第1の変形例の構成を示すブロック図である。
第1の変形例の分電盤は、センサユニット21に代えて、センサユニット121を備える点において上述の実施形態の分電盤と異なっている。センサユニット121の処理内容の一部が、センサユニット21とは異なる。
センサユニット121は、上記記憶部34と同様の記憶部134を備える。記憶部134は、分岐ブレーカBに接続されるべき負荷において想定される消費電流のパターンをさらに記憶している。
次に、上述の実施形態の他の変形例について説明する。図9は、第2の変形例の構成を示すブロック図である。
第2の変形例のセンサユニット121は、さらにパターン収集部139を備える点において、第1の変形例のセンサユニット121と相違する。
パターン収集部139は、分電盤100の運用開始時から所定期間が経過するまでの間に各電流センサCTから得られた消費電流パターンを収集する。パターン収集部139は、収集した消費電流パターンに基づいて参照用パターンを得る。
また、第2の変形例の記憶部134が記憶している内容が、第1の変形例の記憶部134と異なっている。すなわち、第1の変形例では、記憶部134(図8参照)は、想定消費電流パターンを記憶している。これに代えて、第2の変形例では、記憶部134は、参照用パターンを記憶している。
比較部135は、記憶部134に記憶された参照用パターンと、取集後における電流センサCTからの信号に基づいた消費電流パターンの実測値とを比較する。警告部136は、比較部135による比較結果を参照し、実測値が参照用パターンに対して所定の誤差以上異なっている場合に注意を喚起するための注意喚起信号を発する。
このような構成により、分電盤100の設置後に、保守作業の誤りにより分岐ブレーカBに誤った負荷が接続された場合に、その誤りを検知して警告を出すことができる。
次に、上述の実施形態の第3の変形例について説明する。図9は、第3の変形例の構成を示すブロック図である。
図9に示すように、第3の変形例では、信号処理部3には、遠隔制御装置140が接続されている。
遠隔制御装置140は、分電盤100の設置場所に配される必要がない。このため、分電盤100の設置場所とは異なる場所であっても分電盤100の制御をすることができる。
例えば、電流センサとしてカレントトランスに代えてホール素子を用いることもできる。
前記メインバーから分岐され、負荷に電力を供給する分岐バーと、
前記分岐バーに電気的に接続され、前記負荷に電気的に接続されるように構成され、前記負荷に供給される電流を所定の設定値に制限するブレーカと、
前記分岐バー若しくは前記ブレーカに設けられ、前記ブレーカに接続されることが予定された負荷を特定するための表示を有する表示部と、
を備える分電盤。
前記センサユニットは、
前記メインバーから前記負荷へ電力を供給する配線の一部に取り付けられ、前記配線における電流の大きさに対応した信号を発するセンサ要素と、
前記センサ要素を特定するための識別情報及び前記センサ要素の動作特性を示す動作特性情報を記憶する記憶部と、
前記センサ要素及び前記記憶部と電気的に接続され、前記センサ要素からの前記信号に基づいた前記負荷の消費電流パターン並びに前記識別情報及び前記動作特性情報を出力する出力部と、
を有する付記1に記載の分電盤。
前記センサユニットは、
前記記憶部に記憶された前記想定消費電流パターンと前記信号に基づいた前記消費電流パターンの実測値とを比較する比較部と、
前記比較部による比較結果を参照し、前記実測値が前記想定消費電流パターンに対して所定の誤差以上異なっていると判断した場合に注意を喚起する信号を発する警告部と、
をさらに備える
付記2に記載の分電盤。
前記配線に接続される前記負荷が運用されている時の消費電流パターンの実測値を収集し、前記収集した実測値に基づいて参照用パターンを得るパターン収集部と、
収集後に前記センサ要素から発せられた前記信号に基づいた前記消費電流パターンの実測値と前記参照用パターンとを比較する比較部と、
前記比較部による比較結果を参照し、前記収集後の実測値が前記参照用パターンに対して所定の誤差以上異なっていると判断した場合に注意を喚起する信号を発する警告部と、
をさらに備える
付記2に記載の分電盤。
前記センサユニットは、
前記識別情報を用いて前記注意を喚起する信号に関係するセンサ要素を特定する特定部と、
前記特定部によって特定されたセンサ要素又は前記特定されたセンサ要素に対応する前記分岐バー若しくは前記ブレーカをユーザーに提示する提示部と、
をさらに備える
付記3または付記4に記載の分電盤。
前記メインバー、前記分岐バー、前記ブレーカ、及び前記センサユニットの組み立て後に、前記表示により特定される負荷を前記ブレーカに接続する
ことを含む付記2から付記5のいずれか一つに記載の分電盤の製造方法。
前記出力部に電気的に接続される制御装置と、
を備え、
前記制御装置は、
前記負荷と前記識別情報とが対応して記憶されたデータベースと、
前記出力部が出力した前記負荷の消費電流パターン並びに前記識別情報及び前記動作特性情報を受け付け、前記受け付け後に前記データベースを参照し、前記分電盤に接続された前記負荷の消費電流パターンをモニターする監視部と、
を備える
消費電力管理システム。
前記ブレーカは、前記負荷への電流の供給の開始及び停止を前記制御信号に基づいて変更する
付記7に記載の消費電力管理システム。
前記メインバー、前記分岐バー、前記ブレーカ、及び前記センサユニットの組み立て後に、前記負荷のうち前記表示により特定される負荷を前記ブレーカに接続する
ことを含む付記7または付記8に記載の消費電力管理システムの製造方法。
2 分岐バー(または分岐プレート)
3 センサユニット
4 充電部カバー
5 表示部
11 二次コイル
21 センサユニット
30 抵抗切替部(抵抗回路)
33 最適センス負荷抵抗演算回路(抵抗回路)
34、134 記憶部
135 比較部
136 特定部
137 警告ランプ(提示部)
B 分岐ブレーカ
CT 電流センサ(コイル部)
Rn 抵抗体
X1、X2、・・・、X6 表示
100 分電盤
140 遠隔制御装置
Claims (9)
- 電源線に接続されるメインバーと、
前記メインバーから分岐され、負荷に電力を供給する分岐バーと、
前記分岐バーに電気的に接続され、前記負荷に電気的に接続されるように構成され、前記負荷に供給される電流を所定の設定値に制限するブレーカと、
前記分岐バー若しくは前記ブレーカに設けられ、前記ブレーカに接続されることが予定された負荷を特定するための表示を有する表示部と、
を備える分電盤。 - 前記メインバーから前記負荷へ供給される電流を測定するセンサユニットをさらに備え、
前記センサユニットは、
前記メインバーから前記負荷へ電力を供給する配線の一部に取り付けられ、前記配線における電流の大きさに対応した信号を発するセンサ要素と、
前記センサ要素を特定するための識別情報及び前記センサ要素の動作特性を示す動作特性情報を記憶する記憶部と、
前記センサ要素及び前記記憶部と電気的に接続され、前記センサ要素からの前記信号に基づいた前記負荷の消費電流パターン並びに前記識別情報及び前記動作特性情報を出力する出力部と、
を有する請求項1に記載の分電盤。 - 前記記憶部は、前記配線に接続される前記負荷が運用されている時に想定される消費電流パターンを示す想定消費電流パターンを予め記憶しており、
前記センサユニットは、
前記記憶部に記憶された前記想定消費電流パターンと前記信号に基づいた前記消費電流パターンの実測値とを比較する比較部と、
前記比較部による比較結果を参照し、前記実測値が前記想定消費電流パターンに対して所定の誤差以上異なっていると判断した場合に注意を喚起する信号を発する警告部と、
をさらに備える
請求項2に記載の分電盤。 - 前記センサユニットは、
前記配線に接続される前記負荷が運用されている時の消費電流パターンの実測値を収集し、前記収集した実測値に基づいて参照用パターンを得るパターン収集部と、
収集後に前記センサ要素から発せられた前記信号に基づいた前記消費電流パターンの実測値と前記参照用パターンとを比較する比較部と、
前記比較部による比較結果を参照し、前記収集後の実測値が前記参照用パターンに対して所定の誤差以上異なっていると判断した場合に注意を喚起する信号を発する警告部と、
をさらに備える
請求項2に記載の分電盤。 - 前記分岐バーを含む複数の分岐バー、前記ブレーカを含む複数のブレーカ、及び前記センサ要素を含む複数のセンサ要素をさらに備え、
前記センサユニットは、
前記識別情報を用いて前記注意を喚起する信号に関係するセンサ要素を特定する特定部と、
前記特定部によって特定されたセンサ要素又は前記特定されたセンサ要素に対応する前記分岐バー若しくは前記ブレーカをユーザーに提示する提示部と、
をさらに備える
請求項3または請求項4に記載の分電盤。 - 前記ブレーカに接続されることが予定された負荷を特定する表示を前記ブレーカに施し、
前記メインバー、前記分岐バー、前記ブレーカ、及び前記センサユニットの組み立て後に、前記表示により特定される負荷を前記ブレーカに接続する
ことを含む請求項2から請求項5のいずれか一項に記載の分電盤の製造方法。 - 請求項2から5のいずれか一項に記載の分電盤と、
前記出力部に電気的に接続される制御装置と、
を備え、
前記制御装置は、
前記負荷と前記識別情報とが対応して記憶されたデータベースと、
前記出力部が出力した前記負荷の消費電流パターン並びに前記識別情報及び前記動作特性情報を受け付け、前記受け付け後に前記データベースを参照し、前記分電盤に接続された前記負荷の消費電流パターンをモニターする監視部と、
を備える
消費電力管理システム。 - 前記制御装置は、前記ブレーカに対して制御信号を出力することによって通電を制御する通電制御部を有し、
前記ブレーカは、前記負荷への電流の供給の開始及び停止を前記制御信号に基づいて変更する
請求項7に記載の消費電力管理システム。 - 前記ブレーカに接続されることが予定された負荷を特定する表示を前記ブレーカに施し、
前記メインバー、前記分岐バー、前記ブレーカ、及び前記センサユニットの組み立て後に、前記表示により特定される負荷を前記ブレーカに接続する
ことを含む請求項7または請求項8に記載の消費電力管理システムの製造方法。
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FR3055478B1 (fr) * | 2016-08-24 | 2023-06-09 | Pierre Fourlinnie | Tableau de distribution electrique equipe d'un module de controle |
GB2559391A (en) * | 2017-02-03 | 2018-08-08 | Simon Clegg Andrew | Bus bar assembly |
US11110949B2 (en) * | 2019-08-31 | 2021-09-07 | Lingdong Technology (Beijing) Co. Ltd. | Movable container |
LU502488B1 (de) * | 2022-07-11 | 2024-01-11 | Phoenix Contact Gmbh & Co | Messvorrichtung zur Strommessung in einem Energieverteilersystem |
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- 2013-08-30 JP JP2014533113A patent/JP5939304B2/ja active Active
- 2013-08-30 CN CN201380044488.1A patent/CN104604054B/zh active Active
- 2013-08-30 WO PCT/JP2013/073352 patent/WO2014034861A1/ja active Application Filing
- 2013-08-30 KR KR20157005047A patent/KR20150038414A/ko active Search and Examination
- 2013-08-30 US US14/423,745 patent/US10116130B2/en active Active
- 2013-08-30 TW TW102131369A patent/TWI502835B/zh not_active IP Right Cessation
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Also Published As
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KR20150038414A (ko) | 2015-04-08 |
JP5939304B2 (ja) | 2016-06-22 |
US10116130B2 (en) | 2018-10-30 |
CN104604054B (zh) | 2016-11-02 |
TWI502835B (zh) | 2015-10-01 |
TW201424174A (zh) | 2014-06-16 |
US20150207309A1 (en) | 2015-07-23 |
CN104604054A (zh) | 2015-05-06 |
JPWO2014034861A1 (ja) | 2016-08-08 |
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