JP2013132097A - Fault location discovery system and fault location discovery method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fault location discovery system for discovering a fault location including a power distribution line more quickly.SOLUTION: The fault location discovery system includes: a transformer monitoring device having a transformer communication unit attached to a transformer, a transformer detection unit for acquiring a first status value, and a transformer storage unit; a meter monitoring device having a meter communication unit attached to the meter, a meter detection unit for acquiring a second status value, and a meter storage unit; and a fault location management server having a management server communication unit, and a management server determination unit for determining which location of a transformer, meter, or a power distribution line therebetween is normal or abnormal on the basis of a first status value included in the transformer status information acquired by the management server communication unit, and a second status value included in the meter status information.

Description

  The present invention relates to a transformer and a meter installed in a distribution line, and a system and method for finding a failure point of a power distribution line.

  In general, a distribution automation system has been introduced in the distribution line system, and even if a power outage accident occurs, the accident occurrence section (the section between the switch and the switch including the accident occurrence point) is automatically controlled from the distribution line system. By disconnecting and energizing a healthy section where no accident has occurred, it can be quickly recovered.

  However, the conventional distribution automation system installs a communication line for management and security (hereinafter referred to as “security line”) separately from the distribution line from the substation to the switch, and monitors the switch. It does not monitor the transformers on the distribution lines or the power consumption measuring instruments installed in each house or business office, which is the final demand area for electricity. Therefore, even if the accident occurrence section can be determined, it cannot be specified where in the accident occurrence section the accident has occurred, and it takes time to restore power supply in the accident occurrence section.

  On the other hand, Patent Document 1 discloses a technique for monitoring a switch, a transformer, and a measuring instrument by power line communication.

JP 2006-330787 A

  However, with this technology, power lines are connected to each device, and it is impossible to monitor if the power is not sufficient, and there is a problem that monitoring cannot reach the end of the distribution line system at the time of multiple failures .

  In the present invention, in order to solve such a problem, a transformer and a measuring instrument having a power storage function in a distribution system monitor adjacent transformers and measuring instruments so that a failure point including a power distribution line can be further improved. It is an object of the present invention to provide a failure spot finding system and a fault spot finding method that can be quickly found.

  In order to solve the above-described problems and achieve the object, a fault location system according to the present invention is a power distribution system that distributes power generated in a power plant to each facility via a transformer and a measuring instrument. A fault location detection system, which is attached to the transformer and detects the state of a transformer communication unit that communicates with other devices on the power distribution system, and the adjacent transformer or the measuring instrument. It is identified by a transformer detection unit that acquires a first state value indicating a state of the device, a transformer adjacent device identification information for identifying the adjacent transformer or the measuring device, and the transformer adjacent device identification information. A transformer storage unit that stores transformer state information that associates the first state value acquired by the transformer detection unit with respect to the device, and is attached to the measuring instrument, Above A measuring instrument communication unit that communicates with other devices on the power distribution system, a measuring device detection unit that detects the state of the adjacent transformer, and acquires a second state value indicating the detected state of the device, and adjacent A measuring instrument in which weighing neighboring device identification information for identifying the transformer to be associated is associated with the second state value acquired by the weighing meter detection unit for the device identified by the weighing neighboring device identification information A measuring device storage device for storing state information; and a measuring device monitoring device, connected to the transformer and the measuring device, and communicates with each device on the power distribution system, from the transformer monitoring device to the A management server communication unit that acquires transformer state information and acquires the measuring device state information from the measuring device monitoring device, and the first state value included in the transformer state information acquired by the management server communication unit And said measuring instrument Based on the second state value included in the information, it is abnormal which part of the transformer, the meter, or the power distribution line between the transformer and the meter is normal. And a failure location management server having a management server determination unit for determining whether or not there is a feature.

  Moreover, this invention is a failure location discovery method performed with the said failure location discovery system.

  ADVANTAGE OF THE INVENTION According to this invention, the failure location discovery system and the failure location discovery method which can discover a failure location more rapidly can be provided by monitoring the transformer, the meter, and the power distribution line in a distribution system. .

1 is an overall configuration diagram of a failure location system 1 that is an embodiment of the present invention. It is a block diagram of a failure location management server. It is a data structure of a communication information table. It is a block diagram of a transformer monitoring part. It is a data structure of transformer state information. It is a block diagram of a measuring instrument monitoring part. It is a data structure of measuring instrument state information. It is the figure which showed the processing flow of the failure location discovery of a failure location discovery system. It is the figure which showed the pattern of collection of the status information and reply information of each apparatus. It is a figure which shows another pattern of collection of the status information and reply information of each apparatus. It is a figure which shows the processing flow which determines normal / abnormal about a transformer. It is a figure which shows the processing flow which determines normal / abnormal about a measuring device. It is a figure which shows the processing flow which determines the abnormal location about a failure location management server.

  FIG. 1 is an overall configuration diagram of a failure location detection system 1 according to an embodiment of the present invention. As shown in the figure, the failure location detection system 1 of the present embodiment includes a failure location management server in a distribution system that distributes power from a substation 110 to each consumer via a switch 120, a transformer 130, and a measuring instrument 140. 100, a transformer monitoring unit (transformer monitoring device) 131 attached to each transformer 130, a measuring device monitoring unit (measuring device monitor) 141 attached to each measuring device 140, and the like. In the following description, the transformer monitoring unit 131 and the measuring instrument monitoring unit 141 are described as being attached to the transformers 130 and the measuring instruments 140, respectively, but may be configured inside these units. .

  FIG. 2 is a functional configuration diagram of the failure location management server 100. The failure location management server 100 is installed in a place where it can communicate with the transformer monitoring unit 131 and the measuring instrument monitoring unit 141, and includes a management server communication unit 101, a management server storage unit 102, a management server determination unit 103, and a management server input unit 104. A management server output unit 105 and the like.

  The failure location management server 100 includes information on the state of each device of the transformer 130 and the measuring instrument 140 (hereinafter, referred to as the transformer monitoring section 131 attached to the transformer 130 and the measuring instrument monitoring section 141 attached to the measuring instrument 140 (hereinafter, "Status information"). Further, the failure location management server 100 communicates with the transformer monitoring unit 131 attached to the transformer 130 and the measuring instrument monitoring unit 141 attached to the measuring instrument 140, as shown in FIG. The communication information table used for is transmitted.

  FIG. 3 is a diagram illustrating a configuration example of a communication information table. As shown in FIG. 3, the communication information table includes a communication source management number for identifying a device as a communication source for all devices constituting the power distribution system, and a communication source address indicating the address of the device. A communication destination management number for identifying a device to be a communication destination and a communication destination address indicating the address of the device are stored in association with each other.

  Communication between the failure location management server 100, the transformer monitoring unit 131, and the measuring instrument monitoring unit 141 is performed via the management server communication unit 101. Note that this communication may be performed using a communication line that is already installed, or may be performed by power line conveyance using a distribution line. On the other hand, communication from the transformer 130 to the measuring instrument 140 is performed by power line conveyance using a distribution line and a lead-in line. Further, this communication may be performed using, for example, IP (Internet Protocol).

  The management server storage unit 102 stores a communication information table used when each device performs communication and state information received by the management server communication unit 101. In addition, the management server storage unit 102 stores the normal / abnormal determination result of each device determined by the management server determination unit 103 described later in association with the state information of the device. When the transformer 130 and the measuring instrument 140 determine normality / abnormality of each device, the determination results are received, and the determination results are stored together with the state information of each device or in place of the state information.

  Based on the state information stored in the management server storage unit 102, the management server determination unit 103 determines whether each device is operating normally or has an abnormality. In this determination, information on the power transmission / distribution route may be required. However, such information is added to the power transmission / distribution route data grasped by the distribution automation system provided separately. It can be obtained by accessing via the unit 101.

  The management server input unit 104 is a keyboard, a mouse, or the like, and receives instructions and the like related to the state confirmation of the transformer 130 and the measuring instrument 140 from the operator.

  The management server output unit 105 is a display, a printer, or the like, and outputs status data of the management server storage unit 102, a determination result of the management server determination unit 103, and the like.

  As shown in FIG. 4, the transformer monitoring unit 131 attached to the transformer 130 includes a transformer power storage unit 132, a transformer detection unit 133, a transformer communication unit 134, and the like. The transformer detection means 133 receives power supply from the transformer power storage means 132 when detecting the stop of power supply. Further, the transformer detection means 133 detects the equipment state of the adjacent transformer 130 or the measuring instrument 140 according to the communication information table stored in the transformer storage means 135 via the transformer communication means 134, and the transformer Status information is acquired periodically, and a value (normal or abnormal) indicating the detection result is written in the acquired transformer status information.

  As shown in FIG. 5, the transformer state information includes a distribution route, a distribution station name of the distribution source, and information for identifying a power pole in which the transformer 130 is installed (hereinafter referred to as a “power pole number”). , Information for identifying the transformer (hereinafter referred to as “transformer management number”), a transformer address indicating the address of the transformer, and an adjacent transformer management number or measuring instrument Information (hereinafter referred to as “meter management number”), a measuring instrument address indicating the address of the measuring instrument, status information of the measuring instrument, the management server determination unit 103 or the transformer monitoring unit 131 and the meter monitoring It is comprised by the determination result by the determination part which the part 141 has, and these are matched and memorize | stored.

  The transformer communication means 134 responds to a reply instruction (hereinafter referred to as “echo request”) from the adjacent transformer monitor 131 and measuring instrument monitor 141 (hereinafter referred to as “echo back”). ). Further, the transformer state information is transmitted to the failure location management server 100.

  In addition, the transformer monitoring unit 131 includes a transformer storage unit 135. The transformer storage unit 135 receives and stores the transformer address, communication information table, and transformer state information from the adjacent transformer monitoring unit 131, and transmits the stored state information to the failure location management server 100. To do. In addition, the transformer storage unit 135 receives and stores measuring instrument status information from the adjacent measuring instrument monitoring unit 141, and transmits the measuring instrument status information to the failure location management server 100 as transformer status information. .

  Furthermore, the transformer monitoring unit 131 includes a transformer determination unit 136. The transformer determination unit 136 analyzes the transformer state information acquired by the transformer communication unit 134 and determines whether the state of the transformer 130 is normal or abnormal. In addition, the transformer determination unit 136 of the transformer monitoring unit 131 analyzes the measuring instrument state information acquired by the transformer communication unit 134 to determine whether the state of the measuring instrument 140 is normal or abnormal. .

  As shown in FIG. 6, the measuring instrument monitoring unit 141 attached to the measuring instrument 140 includes a measuring instrument storage unit 142, a measuring instrument detection unit 143, a measuring instrument communication unit 144, and the like. The meter detector 143 receives power supply from the meter storage unit 142 when detecting the stop of power supply. The measuring instrument detection means 143 detects the equipment status of the adjacent transformer 130 according to the communication information table stored in the measuring instrument storage means 145 via the measuring instrument communication means 144, and periodically measures the measuring instrument status information. Automatically and write a value indicating the detection result (normal or abnormal) to the acquired measuring instrument state information.

  As in the case of the transformer state information shown in FIG. 5, the meter state information includes the distribution route, the substation name of the distribution source, and the pole number to which the meter 140 is connected, as shown in FIG. Measuring device management number, adjacent transformer management number, adjacent transformer address indicating the address of the transformer, status information of the transformer, management server determination unit 103 or transformer monitoring unit 131, and meter monitoring It is constituted by a determination result by the determination unit included in the unit 141, and weighing device data in which these are associated with each other is stored.

  In response to a reply instruction (hereinafter referred to as “echo request”) from the adjacent transformer monitoring unit 131, the measuring instrument communication means 144 sends a reply (hereinafter referred to as “echo back”) corresponding thereto. Information relating to the state of the measuring instrument including echo back and measuring instrument data is referred to as measuring instrument state information.

  The measuring instrument monitoring unit 141 includes a measuring instrument storage unit 145. The measuring device storage means 145 receives and stores the measuring device address, the communication information table, and the transformer state information from the adjacent transformer monitoring unit 131, and transmits the stored state information to the failure location management server 100. To do.

  The configuration of the failure location detection system 1 is as described above. Hereinafter, the failure location discovery determination processing flow of the failure location discovery system 1 will be described.

  FIG. 8 is a diagram showing a schematic flow of failure location discovery in the failure location discovery system 1. As shown in FIG. 1, in the distribution system, a substation 110, a switch 120, a transformer 130, and a measuring instrument 140 are connected in order from upstream to downstream. First, the state information of each device of the transformer 130 and the measuring instrument 140 is collected by determining whether or not the power supply from the upstream side is stopped (S801). The appliance 140 receives power supply from the storage means of each device (S802). Then, each device periodically issues a status information transmission instruction to an adjacent device according to the communication information table (S803), and the device that has received the transmission instruction transmits the status information (S804). For each state information, the transformer monitoring unit 131 and the meter monitoring unit 141 determine whether each device is normal or abnormal, and store the result (S805). The status information is transmitted to the management server 100 (S806).

  Below, each step is explained in full detail. First, the presence / absence of power supply from the power distribution line is determined by the process of S801 in FIG. 8, and the power is supplied by the storage means attached to the transformer 130 and the measuring instrument 140 by the process of S802 of FIG.

  The state information of the transformer 130 and the measuring instrument 140 collected by the processing of S803 and S804 in FIG. 8 is finally collected in the failure location management server 100 in S806. Specifically, the flow of collecting the status information and the reply information has the following two patterns, and any of these patterns may be used.

  As shown in FIG. 9, the first pattern is that the transformer monitoring unit 131 sends state information to the adjacent transformer monitoring unit 131 and the measuring instrument monitoring unit 141 according to the communication information table. The transformer monitoring unit 131 and the measuring instrument monitoring unit 141 transmit state information related to each device to the transformer monitoring unit 131. Further, the transformer monitoring unit 131 transmits the transformer state information and the meter state information to the failure location management server 100.

  In the second pattern, as shown in FIG. 10, the measuring instrument monitoring unit 141 instructs the adjacent transformer monitoring unit 131 to transmit state information to the measuring instrument monitoring unit 141 according to the communication information table, The transformer monitoring unit 131 transmits state information related to the device to the measuring instrument monitoring unit 141. In addition, the measuring instrument monitoring unit 141 transmits the transformer state information to the failure location management server 100.

  As will be described later, in any pattern, the transformer monitoring unit 131 and the meter monitoring unit 141 include a determination unit, and the transformer monitoring unit 131 and the meter monitoring unit 141 determine normality / abnormality. In this case, the transformer monitoring unit 131 and the measuring instrument monitoring unit 141 transmit the normal / abnormal determination result together with the state information or instead of the state information.

  Next, the determination procedure for each device will be described in detail for the determination of whether the transformer 130 and the measuring device 140 are normal or abnormal in S805 of FIG.

  The normal / abnormal determination of the transformer 130 is performed according to the procedure shown in the processing flowchart of FIG. The transformer monitoring unit 131 determines whether the adjacent transformer 130 or the measuring instrument 140 is normal or abnormal depending on whether the state information is received from the transformer monitoring unit 131 or the measuring instrument monitoring unit 141. (S1101).

  Next, the transformer monitoring unit 131 stores the determination result of normality or abnormality of the transformer 130 or the measuring instrument 140 (S1102, S1103). This determination process may be performed by the failure location management server 100. When the transformer monitoring unit 131 performs normal / abnormal determination, the transformer monitoring unit 131 may transmit the state information to the failure location management server 100 only when the determination result is abnormal, and all the state information is stored. You may transmit to the failure location management server 100.

  As a reason why the result of the transmission instruction from the transformer monitoring unit 131 cannot be received, a case where the reply cannot be received due to a failure of the adjacent transformer monitoring unit 131 or the meter monitoring unit 141, and a case where the transformer monitoring unit 131 is adjacent. The case where it cannot reply by the failure of the power distribution line between the transformer monitoring part 131 or the measuring instrument monitoring part 141 is assumed. The failure section means a section where any of these cases occurs.

  In the above description, the transformer monitoring unit 131 periodically instructs the adjacent transformer monitoring unit 131 or the meter monitoring unit 141 to transmit state information according to the communication information table, and the adjacent transformer monitoring unit 131. Alternatively, the measuring instrument monitoring unit 141 transmits to the transformer monitoring unit 131, but the instruction content may be an echo request instead of transmission of state information.

  The normal / abnormal determination of the measuring instrument 140 is performed according to the procedure shown in the process flow diagram of FIG. The measuring device monitoring unit 141 determines whether the adjacent transformer 130 is normal or abnormal depending on whether or not the state information is received from the transformer monitoring unit 131 (S1201).

  Next, the measuring instrument monitoring unit 141 stores the determination result of normality or abnormality of the transformer 130 (S1202, S1203). This determination process may be performed by the failure location management server 100. When the measuring instrument monitoring unit 141 determines normality / abnormality, the measuring instrument monitoring unit 141 may transmit the state information to the failure location management server 100 only when the determination result is abnormal, and all the state information is stored. You may transmit to the failure location management server 100.

  In addition, as a reason for not being able to receive the transmission from the measuring instrument monitoring unit 141, when the reply cannot be made due to a failure of the adjacent transformer monitoring unit 131, and between the measuring instrument monitoring unit 141 and the adjacent transformer monitoring unit 131, A case where a reply cannot be made due to a failure of the power distribution line is assumed. The failure section means a section where any of these cases occurs.

  In the above description, the measuring instrument monitoring unit 141 periodically instructs the adjacent transformer monitoring unit 131 to transmit state information according to the communication information table, and the adjacent transformer monitoring unit 131 performs the measuring instrument monitoring unit 141. However, the instruction content may be an echo request instead of transmission of status information.

  The determination of an abnormal location for the failure location management server 100 is performed according to the procedure shown in the processing flowchart of FIG. The management server communication unit 101 receives the state information transmitted from the transformer monitoring unit 131 or the meter monitoring unit 141 according to the communication information table, and stores it in the management server storage unit 102 (S1301). The management server determination unit 103 determines normality / abnormality of the transformer 130, the measuring instrument 140, or the power distribution line in the state information transmitted from the transformer monitoring unit 131 or the measuring instrument monitoring unit 141 (S1302, S1304, (S1306), the determination result is stored (S1303, S1305, S1307, S1308).

  Specifically, the management server determination unit 103 determines whether or not the received state information is normal (S1302), and if it is determined that the received state information is normal, the device has no failure. Is recorded in the management server storage unit 102 (S1303).

  On the other hand, when the management server determination unit 103 determines that the received state information is not normal, the management number (or address) stored in the state information and the management number (or address) of the adjacent device are further stored. Whether or not only communication from the communication source (for example, device A) to the communication destination (for example, device B) is abnormal (for example, whether the state of device A is normal while the state of device B is abnormal) (S1304), if it is determined that only communication from the communication source to the communication destination is abnormal, the communication destination device (for example, device B) is recorded as a failure in the management server storage unit 102. (S1305).

  On the other hand, when the management server determination unit 103 determines that only communication from the communication source to the communication destination is not abnormal, the management server (or address) stored in the status information and the management number ( Or address) as a key, whether or not only communication from the communication destination (for example, device B) to the communication source (for example, device A) is abnormal (for example, the state of device B is normal while the state of device A is abnormal) (S1306), and if it is determined that only communication from the communication destination to the communication source is abnormal, the management server storage unit determines that the communication source device (for example, device A) is faulty. 102 (S1307).

  When the management server determination unit 103 determines that only communication from the communication destination to the communication source is not abnormal, the power distribution line between the communication source (for example, the device A) and the communication destination (for example, the device B) has failed. Is recorded in the management server storage unit 102 (S1308).

  As described above, according to the failure location detection system 1 of the present embodiment, the failure location can be found more quickly by monitoring the transformer, the meter, and the power distribution line in the distribution system.

  Previously, it was possible to monitor from substations to switches with automatic distribution systems, etc., but each house and business site that is the final demand area of transformers and power on the distribution line. It was not possible to monitor the power consumption meter attached to the. Therefore, even if it was possible to determine the accident occurrence section, it was not possible to identify where the accident occurred in the accident occurrence section, and it took time to restore power in the accident occurrence section. On the other hand, according to the failure location detection system 1, by performing communication by power line conveyance in the section from the transformer 130 to the adjacent transformer 130 and the measuring device 140, the transformer 130 that has not been monitored so far can be used. It is possible to monitor the section including the power distribution line up to the measuring device 140. As a result, when an accident occurs, it is possible to specify where in the accident occurrence section the accident occurred.

  In addition, when a power outage occurs in a certain power consumer, it was not possible to clarify whether the cause of the accident on the power distribution side or the cause of the accident on the consumer side had to be investigated on site. According to 1, since it is possible to find out if there is a failure part including the power distribution line from the transformer 130 to the measuring instrument 140, it is possible to quickly grasp whether or not there is a cause of power failure on the distribution side.

  In addition, the description of the above embodiment is for facilitating understanding of the present invention, and does not limit the present invention. It goes without saying that the present invention can be changed and improved without departing from the gist thereof, and that the present invention includes equivalents thereof.

DESCRIPTION OF SYMBOLS 1 Failure location detection system 100 Failure location management server 101 Management server communication part 102 Management server memory | storage part 103 Management server determination part 104 Management server input part 105 Management server output part 110 Substation 120 Switch 130 Transformer 131 Transformer monitoring part 132 Transformer power storage means 133 Transformer detection means 134 Transformer communication means 135 Transformer storage means 136 Transformer determination means 140 Measuring instrument 141 Measuring instrument monitoring unit 142 Measuring instrument power storage means 143 Measuring instrument detection means 144 Measuring instrument communication means 145 Measuring instrument Storage means 146 Measuring instrument determination means.

Claims (14)

A fault location detection system in a power distribution system that distributes power generated at a power plant to each facility via a transformer and a meter,
Attached to the transformer,
A transformer communication unit that communicates with other devices on the power distribution system;
A transformer detection unit that detects a state of the adjacent transformer or the measuring instrument and acquires a first state value indicating a state of the detected device;
Transformer adjacent device identification information for identifying the adjacent transformer or the measuring instrument, and the first state value acquired by the transformer detection unit for the device identified by the transform adjacent device identification information A transformer storage unit that stores the associated transformer state information, and a transformer monitoring device,
Attached to the measuring instrument,
A meter communication unit that communicates with other devices on the power distribution system;
A measuring instrument detection unit for detecting a state of the adjacent transformer and acquiring a second state value indicating the state of the detected device;
Weighing adjacent device identification information for identifying adjacent transformers and weighing associated with the second state value acquired by the measuring device detector for the device identified by the weighing adjacent device identification information A measuring device storage unit for storing measuring device status information, and a measuring device monitoring device,
Connected to the transformer and the meter;
A management server communication unit that communicates with each device on the power distribution system, acquires the transformer state information from the transformer monitoring device, and acquires the meter state information from the measuring device monitoring device;
Based on the first state value included in the transformer state information acquired by the management server communication unit and the second state value included in the meter state information, the transformer, the meter, Or a management server determination unit that determines which of the power distribution lines between the transformer and the measuring instrument is normal or abnormal, and a failure location management server having
A failure location detection system comprising: The transformer monitoring device instructs the adjacent transformer or the measuring instrument to periodically transmit the first state value,
The measuring instrument monitoring apparatus instructs the adjacent measuring instrument to periodically transmit the second state value,
In the management server, the management server communication unit periodically acquires the transformer state information from the transformer monitoring device, and acquires the measuring instrument state information from the measuring device monitoring device.
The fault location system according to claim 1, wherein: The management server determination unit
Whether the transformer detector of the transformer monitoring device has acquired the first state value, or whether the meter detector of the measuring device monitoring device has acquired the second state value. To determine which part of the transformer, the meter, or the power distribution line between the transformer and the meter is normal or abnormal,
The fault location system according to claim 1 or 2, characterized in that. The management server determination unit
The transformer neighboring device that is a communication source using the transformer neighboring device identification information included in the transformer state information acquired by the management server communication unit and the metering neighboring device identification information included in the meter state information as keys. When the first status value corresponding to the identification information is normal and the second status value corresponding to the measurement neighboring device identification information serving as the communication destination is abnormal, the communication destination device is faulty. It is determined that
The fault location discovery system according to any one of claims 1 to 3. The management server determination unit
The transformer neighboring device that is a communication source using the transformer neighboring device identification information included in the transformer state information acquired by the management server communication unit and the metering neighboring device identification information included in the meter state information as keys. When the first state value corresponding to the identification information is abnormal and the second state value corresponding to the measurement neighboring device identification information to be a communication destination is normal, the communication source device has failed. It is determined that
The fault location discovery system according to any one of claims 1 to 4. The management server determination unit
The transformer neighboring device that is a communication source using the transformer neighboring device identification information included in the transformer state information acquired by the management server communication unit and the metering neighboring device identification information included in the meter state information as keys. When the first state value corresponding to the identification information is not abnormal and the second state value corresponding to the measurement neighboring device identification information as the communication destination is not abnormal, the communication source device and the communication destination device It is determined that the power distribution line between and
The fault location discovery system according to any one of claims 1 to 5. The transformer monitoring device transmits the transformer state information recording the fact to the failure location management server only when the first state value could not be acquired,
The management server determination unit is based on the first state value included in the transformer state information acquired by the management server communication unit and the second state value included in the measuring device state information. Determine whether the location is normal or abnormal,
The fault location finding system according to any one of claims 1 to 6. The measuring instrument monitoring device transmits the measuring instrument status information recording the fact to the failure location management server only when the second status value cannot be acquired.
The management server determination unit is based on the first state value included in the transformer state information acquired by the management server communication unit and the second state value included in the measuring device state information. Determine whether the location is normal or abnormal,
The fault location discovery system according to any one of claims 1 to 7. The transformer monitoring device and the measuring instrument are used to determine which part of the transformer, the measuring instrument, or the power distribution line between the transformer and the measuring instrument is normal or abnormal. The monitoring device does,
The fault location discovery system according to any one of claims 1 to 8, wherein The transformer monitoring device and the measuring instrument monitoring device transmit the result to an adjacent device only when the result of the determination is abnormal.
The fault location system according to claim 9. The failure location management server is
A management server storage unit for storing a communication information table for storing communication source identification information indicating a device serving as a communication source and communication destination identification information indicating a device serving as a communication destination in association with each other on the power distribution system; In addition,
The management server communication unit transmits the communication information table to each device,
The transformer monitoring device and the measuring instrument monitoring device identify adjacent devices based on the communication source identification information and the communication destination identification information included in the transmitted communication information table.
The fault location discovery system according to any one of claims 1 to 10. The transformer detector and the meter detector further detect whether the power supply is stopped,
The transformer monitoring device further includes a transformer storage unit that operates the transformer with stored power when the transformer detection unit detects that power supply to the transformer is stopped,
The measuring instrument monitoring device further includes a measuring instrument storage unit that operates the measuring instrument with stored power when the measuring instrument detection unit detects that power supply to the measuring instrument is stopped.
The fault location discovery system according to any one of claims 1 to 11, characterized in that Communication between the transformer communication unit and the meter communication unit is performed via the power distribution line, and communication between the management server communication unit, the transformer communication unit, and the meter communication unit is performed. , Performed via a communication line different from the power distribution line,
The failure location discovery system according to any one of claims 1 to 12, wherein A fault location discovery method performed in a fault location discovery system in a power distribution system that distributes power generated at a power plant to each facility via a transformer and a meter,

The transformer adjacent device identification information for identifying the adjacent transformer or the measuring instrument attached to the transformer, and the transformer detection unit for the device identified by the transformer adjacent device identification information acquired by the transformer A transformer monitoring device having a transformer storage unit that stores transformer state information associated with a first state value,
A first detection step of detecting a state of the adjacent transformer or the measuring instrument;
A first acquisition step of acquiring a first state value indicating the state of the detected device;
Transformer communication step of communicating with other devices on the power distribution system and transmitting the transformer state information;
The second state acquired by the measuring instrument detection unit for the measuring adjacent device identification information for identifying the adjacent transformer attached to the measuring device and the device identified by the measuring adjacent device identification information A measuring instrument monitoring device having a measuring instrument storage unit that stores measuring instrument status information associated with a value,
A second detection step of detecting the state of the adjacent transformer;
A second acquisition step of acquiring a second state value indicating the state of the detected device;
A meter communication step of communicating with other devices on the power distribution system and transmitting the meter status information;
The failure point management server connected to the transformer and the measuring instrument,
A communication with each device on the power distribution system, obtaining the transformer state information from the transformer monitoring device, and a management server communication step for obtaining the measuring device state information from the measuring device monitoring device;
Based on the first state value included in the transformer state information acquired in the management server communication step and the second state value included in the meter state information, the transformer, the meter, Or a management server determination step for determining which part of the power distribution line between the transformer and the measuring instrument is normal or abnormal,
A fault location finding method characterized by comprising:

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