JP5134796B2 - Gas-insulated high-voltage electrical equipment monitoring device and monitoring method thereof - Google Patents

Description

  The present invention relates to a monitoring device for gas-insulated high-voltage electrical equipment that monitors the state of temperature, vibration, etc. in conductors used in electrical equipment such as gas-insulated switchgears and gas-insulated buses, and a monitoring method therefor.

  2. Description of the Related Art In recent years, as a high-voltage circuit switchgear and power transmission device constituting a substation, a gas-insulated switchgear and gas comprising a high-voltage conductor disposed in a metal container and a gas insulator compressed and filled in the metal container Many insulated buses are used. In these gas insulated switchgear and gas insulated bus, a high voltage conductor is insulated and supported in the metal container via an insulating spacer.

  The high-voltage conductor can be connected to a current-carrying member that is integrally cast with an insulating spacer, or connected to an extension member and connected to another conductor to support various shapes of equipment such as bent parts. ing.

  However, there is a tendency for the electrical resistance to increase and the amount of heat generation to increase at this connection. That is, there is an effect that the conductor temperature rises at this connection portion, and the life of the device is shortened. For this reason, various diagnostic systems that monitor the conductor temperature to predict the lifetime of the device have been studied.

  A typical recent diagnostic system uses an IC tag. For example, a technology related to a diagnostic unit that installs an IC tag on a rolling bearing of a rotating electrical machine, detects rotational speed, vibration, etc. using a non-contact wireless communication function, transmits the data, and diagnoses the abnormality of the rotating electrical machine Is known (see, for example, Patent Document 1).

  In addition, the ambient temperature, humidity, atmospheric pressure, vibration, etc. when the product is transported / stored are managed by the IC tag, and displayed on the display means that changes irreversibly when it deviates from the storage environment. What is managed is known (for example, refer to Patent Document 2).

In addition, a technique related to a non-contact type IC tag for detecting the presence or absence of temperature environment change and a technique related to an abnormality inspection system using an IC tag capable of remote centralized management are known (for example, see Patent Documents 3 and 4). .
JP 2005-227172 A JP 2004-18253 A JP 2006-58014 A JP 2002-230675 A

  In the conventional diagnostic system described above, an IC tag is installed on the rolling bearing of the rotating electrical machine, the rotational speed and vibration are detected using a non-contact wireless communication function, and the data is transmitted to detect abnormalities in the rotating electrical machine. I have a diagnosis.

  However, the above-described diagnostic system using the conventional IC tag is assumed to be used in an atmospheric pressure environment, and is applied as it is to the electrical equipment such as the above-described gas-insulated switchgear and gas-insulated bus. There was a problem that it was not possible.

  In other words, when the above-described diagnostic system using an IC tag is applied to a gas-insulated high-voltage electrical device, the location to be diagnosed / managed is inside the sealed container, and a signal is detected when the IC tag is installed there. There is a problem that this measure must be taken because the inside of the sealed container is in a special environment such as high gas pressure insulating gas.

  The present invention has been made to solve the above-described problems, and predicts the lifetime of a device by monitoring the temperature, humidity, acceleration, vibration, etc. in a metal container of a gas-insulated high-voltage electrical device in a special environment. An object of the present invention is to provide a monitoring device for gas-insulated high-voltage electrical equipment that can be used and a monitoring method thereof.

In order to achieve the above object, in the monitoring apparatus for gas-insulated high-voltage electrical equipment according to the present invention, a metal container constituting the gas-insulated high-voltage electrical equipment, and a plate provided on the flange portion of the metal container and sealing the metal container Insulating spacer, a current-carrying member formed at the center of this insulation spacer, a high-voltage conductor insulated and supported in the metal container by connecting to both sides of the current-carrying member, and an outside of the high-voltage conductor An IC tag with a sensor function and a communication function attached to a concave portion or a through-hole formed on the surface, and an IC tag or an IC tag reader / writer with a communication function provided in a fixed or non-fixed state on the outer surface of the metal container; in the monitoring device for a gas insulated high voltage electrical apparatus having a hula flanged branch pipe provided in the through hole or the metal container provided in the metal container Be provided with an inner or the communication function IC tag or IC tag reader-writer is attached to the outside of the insulation of the insulating portion for sealing a through hole passing through di-, and is characterized in.

In order to achieve the above object, in the method for monitoring gas-insulated high-voltage electrical equipment according to the present invention, the metal container provided on the flange portion of the metal container in the metal container constituting the gas-insulated high-voltage electrical equipment. In the metal container, a dish-shaped insulating spacer to be sealed, an energizing member formed at the center of the insulating spacer, an insulating supporting step for insulatingly supporting a high voltage conductor by connecting to both sides of the energizing member, An energization step for energizing a high-voltage conductor supported by insulation, a power-on step for generating power at the power supply part of the IC tag step with sensor function and communication function by this energization, and a sensor function and communication by this power-on A measuring step for measuring the temperature of the high-voltage conductor by the sensor part of the IC tag with a function, and the measured data is sent to the outside of the metal container. Through hole penetrating a data transmitting step of transmitting, in the monitoring method for a gas insulated high voltage electrical apparatus having, the flange of the flanged branch pipe provided in the through hole or the metal container provided in the metal container A data transmission step of transmitting the measured data to the outside of the metal container via the IC tag with communication function or the IC tag reader / writer attached to the inside of the insulating portion that seals the outside or the outside of the insulator. It is characterized by.

According to the monitoring apparatus and the monitoring method for gas-insulated high-voltage electrical equipment according to the present invention, a signal is taken out from a metal container sealed through an insulator by an IC tag that is turned on when a high-voltage conductor is energized. The temperature of the internal high voltage conductor can be continuously measured, and the lifetime of the equipment can be predicted by monitoring the temperature, humidity, acceleration, vibration, etc. in the metal container in a special environment.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a monitoring apparatus for gas-insulated high-voltage electrical equipment and a monitoring method thereof according to the present invention will be described below with reference to the drawings. Here, the same or similar parts are denoted by common reference numerals, and redundant description is omitted.

(First embodiment)
FIG. 1 is a cross-sectional view showing a schematic configuration of a monitoring apparatus for gas-insulated high-voltage electrical equipment according to a first embodiment of the present invention, and FIG. 2 is an explanation showing part A (high-voltage conductor) in FIG. In the figure, (a) is a detailed view thereof, and (b) is a detailed view of a modification thereof.

  An embodiment of a monitoring apparatus for gas-insulated high-voltage electrical equipment using an IC tag with a sensor will be described with reference to FIGS. Here, as an example, a gas-insulated high-voltage electric device is a gas-insulated switchgear or a gas-insulated bus. As shown in FIG. 1, a tubular high-voltage conductor 2 is disposed in a metal container 1 constituting the gas-insulated high-voltage electric device. The metal container 1 is compressed and filled with an insulating gas 3 such as SF6 gas, nitrogen, carbon dioxide gas, and air.

  As shown in FIGS. 2A and 2B, a concave portion or a through hole 22 is provided on the outer surface of the high voltage conductor 2. An IC tag 4 with a sensor and a communication function is attached to the recess or the through hole 22. Further, as shown in FIG. 1, an IC tag 5a with a communication function and an IC tag reader / writer 5b are attached to the inner surface and the outer surface of the metal container 1 so as to face the IC tag 4, respectively. These IC tag and IC tag reader / writer will be described later.

  FIG. 3 is a side sectional view showing a schematic configuration of part B (metal container 1) of FIG. 1 and the inside thereof.

  In this figure, tubular high-voltage conductors 2a and 2b are fitted and connected to both sides of a current-carrying member 6a integrally cast at the center of a dish-shaped insulating spacer 6. The sensor and the IC tag 4 with a communication function are installed in the vicinity of the connection portion between the high voltage conductor 2a and the energizing member 6a and at the upper position on the outer surface of the high voltage conductor 2a. The IC tag reader / writer 5b is installed at a lower position on the outer surface of the insulating spacer 6.

  FIG. 7 is a configuration diagram showing a schematic configuration of the IC tag employed in the first embodiment.

  As shown in the figure, the IC tag 4 with a sensor and communication function has a sensor unit 10 including a temperature sensor, a vibration sensor, and the like. A signal acquired from the sensor unit 10 is transmitted to the AD conversion unit 11. In addition, a signal taken in via the antenna unit 12 is transmitted to the memory unit 14 and the CPU unit 15 via the communication circuit 13. A power supply circuit 16 is connected to the electrodes 17a existing at both ends of the IC tag 4.

In the IC tag 4 configured as described above, the CPU unit 15 takes in a signal sensed by the sensor unit 10 in accordance with a program as digital data. The captured data is converted into an electrical signal by the communication circuit 13 and then transmitted to the outside via the antenna unit 12. For this purpose, the power supply unit that supplies power has two divided electrodes 17 a, which are installed at both ends in the longitudinal direction of the IC tag 4. Electric power is generated by utilizing the potential difference, magnetic flux difference, magnetic field difference, temperature difference, etc. of both electrodes 17a, 17a. Furthermore, in order to protect the IC tag 4, measures are taken so that a part of the IC tag 4 is formed of a resin mold 18 with an epoxy resin or the like to be in an airtight state and is not destroyed even in a severe environment.

  The IC tag with communication function 5a is basically not shown, but basically has a configuration in which the sensor function is omitted from the configuration of the sensor and the IC tag with communication function 4 described above. The IC tag reader / writer 5b has a configuration in which the sensor function is omitted from the configuration of the sensor and the IC tag with communication function 4 described above, and a data read / write function is added. Therefore, an IC tag having a sensor function, a transmission / reception function, and a data reading / writing function can serve as both a sensor, an IC tag with a communication function, an IC tag with a communication function, and an IC tag reader / writer.

  Next, the operation of the gas-insulated high-voltage electric device according to this embodiment configured as described above will be described.

  As shown in FIG. 3, when a current flows through the high-voltage conductor 2, heat is generated according to the electric resistance, and the temperature rises. In particular, in the connecting portion between the high voltage conductor 2 and the energizing member 6a and the connecting portion between the high voltage conductor 2a and the high voltage conductor 2b, the electrical resistance due to contact tends to increase, and the temperature tends to increase. That is, an increase in the conductor temperature at these connection portions affects the life of the device.

  Therefore, power is generated using the temperature difference between the electrodes 17a provided at both ends of the IC tag 4 in the longitudinal direction, and data relating to temperature and vibration measured by the sensor unit 10 is transmitted via the antenna unit 12, Periodically recorded in non-volatile memory. Since the temperature does not rise when the high voltage conductor 2 is not energized, the power is not turned on and there is no need to measure the temperature. Furthermore, it is possible to monitor for a long time without the need to turn on the power or replace the battery. When power is generated using physical quantities such as potential difference, magnetic flux difference, and magnetic field difference other than temperature, the power is not turned on except during energization.

  According to the present embodiment, a sensor provided with an electrode that generates electricity using a potential difference other than temperature, a magnetic flux difference, or the like when energizing the high-voltage conductor 2 in a recess or a through-hole 22 formed on the outer surface of the high-voltage conductor 2. The IC tag 4 with communication function is attached, and the IC tag 5a with communication function or the IC tag reader / writer 5b is attached to the outer surface of the metal container 1, thereby continuing the temperature of the high voltage conductor 2 in the metal container 1. It can be measured. Thus, the lifetime of the device can be predicted by monitoring the temperature, humidity, acceleration, vibration, and the like in the metal container 1 under a special environment.

  Further, since the IC tag 4 is installed in the recess or the through hole 22 of the high-voltage conductor 2, it is difficult to be affected by a surge of the gas-insulated high-voltage electrical device main body and is not easily damaged. There are advantages such as not affecting the insulation performance of the electrical equipment body.

  Further, when the IC tag 4 is provided in the metal container 1, since the electromagnetic wave for data transmission / reception is blocked by the metal container 1, it is difficult to take out the measured data to the outside. At this time, as shown in FIG. 3, the IC tag reader / writer 5b is installed on the outer surface of the insulating spacer 6 which is an insulator. Thus, the temperature data transmitted from the IC tag 4 installed on the high-voltage conductor 2 can be received via the insulating spacer 6, periodically recorded in the nonvolatile memory, and further transmitted to the outside as necessary. it can.

(Second Embodiment)
FIG. 4 is a side sectional view showing a schematic configuration of an example of a monitoring apparatus for gas-insulated high-voltage electrical equipment according to the second embodiment of the present invention.

  As shown in this figure, the IC tag 4 is installed at the upper position of the outer surface of the cylindrical high-voltage conductor 2a, and a communication function is provided inside the flange portion 21 of the branch pipe 20 provided in the lower portion of the metal container 1. An IC tag 5a is installed, and an IC tag reader / writer 5b is installed outside the IC tag 5a.

  The IC tag 5a with a communication function that can be transmitted / received installed inside the metal container 1 receives the temperature data transmitted from the IC tag 4 installed on the high voltage conductor 2, and uses the non-metal part of the metal container 1 It is possible to transmit outward. These data can be received by the IC tag reader / writer 5b outside the metal container 1, periodically recorded in the nonvolatile memory, and further transmitted to the outside as required. By continuously monitoring these temperature data, it is possible to detect an abnormality in the device and predict the life.

  FIG. 5 is a cross-sectional view showing another branch pipe 20 portion of this embodiment, and an IC tag reader / writer is different from that in FIG.

  In FIG. 5A, an IC tag with communication function or an IC tag reader / writer 5c is installed in a through hole 23 provided through a flange portion 21 of a branch pipe 20 attached to a metal container 1. . In FIG. 5B, the antenna portion 5d is installed through the flange portion 21. Data can be transmitted and received between the antenna unit 5d and the IC tag reader / writer 5b installed outside the metal container 1.

  According to the present embodiment, the IC tag with communication function or the IC tag reader / writer 5c, the antenna unit 5d, and the like are attached to the through hole 23 of the branch pipe 20 provided on the outer surface of the high-voltage conductor 2, and the like. Similarly to the second embodiment, the temperature of the high voltage conductor 2 in the metal container 1 can be continuously measured. Thus, the lifetime of the device can be predicted by monitoring the temperature, humidity, acceleration, vibration, and the like in the metal container 1 under a special environment.

  As shown in FIG. 5A, when an IC tag with a communication function or an IC tag reader / writer 5c or the like is attached using a through-hole 23 that penetrates the metal container 1, the metal container 1 or the metal container 1 It is necessary to seal the periphery of the IC tag with communication function or the IC tag reader / writer 5c attached to the flange portion 21 of the branch pipe 20 provided in FIG. In this case, it is necessary to take measures to seal the inside of the through hole 23 including the IC tag with a communication function or the IC tag reader / writer 5c with resin or the like, or insert an insulator to seal. In such a case, the type in which the IC tag with a communication function or the IC tag reader / writer 5c is attached to the flange 21 of the branch pipe 20 shown in FIG. 5A does not need to be directly attached to the metal container 1, There are advantages such as easy installation.

  Further, the IC tag with communication function or the IC tag reader / writer 5c to be installed may be either the IC tag with communication function 5a or the IC tag reader / writer 5b. Furthermore, when the sensitivity of the signal from the sensor attached to the high voltage conductor 2 and the IC tag 4 with a communication function is good, the through hole 23 may be filled only with an insulator such as resin. In such a case, the signal can be received by the IC tag reader / writer 5b separately provided outside or the IC tag reader / writer 5b carried by a person, and can be measured as needed.

  In addition, the IC tag 4 has a resin part 18 formed of an epoxy resin or the like in an environment that is vulnerable to the environment, such as the CPU unit 15, the AD conversion unit 11, the communication circuit 13, and the power supply circuit 16. The antenna unit 12, the electrodes 17a and 17b, etc. are exposed. By taking such measures, it is possible to ensure a sensing function, a transmission / reception function, and a power generation function that are difficult to destroy and have high accuracy. Further, as shown in FIG. 8, it is possible to improve the environmental strength by molding the entire IC tag 4 with resin.

  Further, the electrode 17b shown in FIG. 8 has a shape that is long in the longitudinal direction of the IC tag 4, and is a type that generates electric power using a potential difference, a magnetic flux difference, a magnetic field difference, a temperature difference, or the like at both ends thereof. It is also possible to generate power using the temperature difference between the conductor installation surface (high temperature) of the electrode 17b and the surface on the filling gas side (low temperature). As a specific electrode in this case, a heat conversion element is generally used. Moreover, when using the temperature difference between the left and right electrodes, an electromotive force generated by a different metal can be used.

  As described above, the operation in the case where the IC tag 4 with the sensor and the communication function is mainly installed on the high voltage conductor 2 has been described. By continuously measuring the vibration and partial discharge of the high-voltage conductor 2 instead of the temperature as the IC tag 4, it is possible to detect an abnormality of the device and the like and to diagnose the life as described above. Also, by measuring one or more physical quantities of temperature, vibration, and partial discharge with one IC tag, and installing multiple IC tags corresponding to each physical quantity, the accuracy of abnormality detection and life diagnosis can be improved. It can also be greatly improved.

(Third embodiment)
FIG. 6 is a side sectional view showing a monitoring apparatus for gas-insulated high-voltage electrical equipment according to the third embodiment of the present invention.

  In FIG. 6A, a through hole 23 is opened through the metal container 1. An IC tag 5a with a communication function is attached inside the through hole 23. An IC tag reader / writer 5 b is attached to the outside of the metal container 1. An insulator 7 is interposed between the IC tag with communication function 5a and the IC tag reader / writer 5b.

  As shown in FIG. 6 (b), when providing the through hole 23 that penetrates the metal container 1, either the IC tag with communication function or the IC tag reader / writer 5c is connected as in FIG. 5 (a). May be installed. When installing an IC tag with a communication function, an IC tag reader / writer 5 b is installed outside the metal container 1. Alternatively, it is possible to perform measurement at any time using an IC tag reader / writer 5b carried by a human.

  According to the present embodiment, the IC tag with communication function or the IC tag reader / writer 5c, the antenna unit 5d, and the like are attached to the through hole 23 of the branch pipe 20 provided on the outer surface of the high-voltage conductor 2, and the like. Similarly to the second embodiment, the temperature of the high voltage conductor 2 in the metal container 1 can be continuously measured. Thus, the lifetime of the device can be predicted by monitoring the temperature, humidity, acceleration, vibration, and the like in the metal container 1 under a special environment.

(Fourth embodiment)
FIG. 9: is sectional drawing which shows schematic structure of the monitoring apparatus of the gas insulation high voltage electric equipment of the 4th Embodiment of this invention.

  As shown in the figure, a bushing 8 is installed at the ends of the metal container 1 and the high voltage conductor 2. An IC tag 4 with a sensor and a communication function is attached in the vicinity of the connection portion between the metal conductor 2 and the bushing 8. An IC tag reader / writer 5b is attached to the outer surface of the insulating portion of the bushing 8. Thus, a signal related to temperature data or the like can be received through the bushing 8 that is an insulator.

(Fifth embodiment)
FIG. 10: is explanatory drawing which shows the attachment part of the IC tag of the metal container of the monitoring apparatus of the gas insulation high voltage electric equipment of the 5th Embodiment of this invention, (a) is sectional drawing of the branch pipe, b) is a sectional view of a modification of the branch pipe.

  As shown in this figure, a non-contact temperature sensor and an IC tag 5e with a communication function can be installed inside the metal container 1.

  According to the present embodiment, the temperature of the high voltage conductor 2 can be monitored without installing an IC tag on the high voltage conductor 2, and a temperature monitoring system can be configured with a simpler structure.

  Further, as shown in FIG. 10B, a non-contact type temperature sensor and an IC tag 5e with a communication function can be installed in the branch pipe 20 via a valve 9.

  According to the present embodiment, the gas-insulated high-voltage electric device main body and the sensor unit can be divided into gases. Thus, it is possible to replace the sensor without removing the gas in the metal container 1. Also when receiving a signal from an IC tag installed on the high voltage conductor 2, the sensor of the flange portion 21 can be replaced with the same configuration, and the same effect as described above can be obtained.

  The IC tag or IC tag reader / writer with a communication function provided outside the metal container may be monitored by monitoring various physical quantities of the high-voltage conductor without being fixed at one place and carried by a monitor.

  In addition, the present invention is not limited to the above-described embodiments, and various modifications may be made without departing from the spirit of the present invention by combining the embodiments of the present invention. it can.

Sectional drawing which shows schematic structure of the monitoring apparatus of the gas insulation high voltage electric equipment of the 1st Embodiment of this invention. It is explanatory drawing which shows the A section (high voltage conductor) of FIG. 1, (a) is the detailed drawing, (b) is the detailed drawing of the modification. FIG. 2 is a side sectional view showing a schematic configuration of part B (metal container) of FIG. The sectional side view which shows schematic structure of the monitoring apparatus of the gas insulation high voltage electric equipment of the 2nd Embodiment of this invention. It is a figure which shows the example of attachment of the IC tag of the 2nd Embodiment of this invention, (a) is sectional drawing of the 2nd example, (b) is sectional drawing of the 3rd example. It is a figure which shows the example of attachment of the IC tag of the 3rd Embodiment of this invention, (a) is sectional drawing of the 1st example, (b) is sectional drawing of the 2nd example. The block diagram which shows schematic structure of the IC tag of FIG. The block diagram which shows schematic structure of the modification of the IC tag of FIG. Sectional drawing which shows schematic structure of the monitoring apparatus of the gas insulation high voltage electric equipment of the 4th Embodiment of this invention. It is explanatory drawing which shows the attachment part of the IC tag of the metal container of the monitoring apparatus of the gas insulation high voltage electric equipment of the 5th Embodiment of this invention, (a) is sectional drawing of the branch pipe, (b) is the Sectional drawing of the modification of a branch pipe.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Metal container, 2, 2a, 2b ... High voltage conductor, 3 ... Insulating gas, 4 ... IC tag with a sensor and a communication function, 5a ... IC tag with a communication function, 5b ... IC tag reader / writer, 5c ... With a communication function IC tag or IC tag reader / writer, 5d ... antenna portion, 5e ... non-contact type temperature sensor and IC tag with communication function, 6 ... insulating spacer, 6a ... energizing member, 7 ... insulator, 8 ... bushing, 9 ... valve DESCRIPTION OF SYMBOLS 10 ... Sensor part, 11 ... AD conversion part, 12 ... Antenna part, 13 ... Communication circuit, 14 ... Memory part, 15 ... CPU part, 16 ... Power supply circuit, 17a, 17b ... Electrode, 18 ... Resin mold, 20 ... Branch pipe, 21 ... flange portion, 22 ... concave portion or through hole, 23 ... through hole.

Claims (7)

A metal container constituting a gas-insulated high-voltage electrical device;
A dish-shaped insulating spacer that is provided on the flange portion of the metal container and seals the metal container;
An energizing member formed at the center of the insulating spacer;
A high voltage conductor that is insulated and supported in the metal container by connecting to both sides of the current-carrying member;
An IC tag with a sensor function and a communication function attached to a recess or a through hole formed on the outer surface of the high-voltage conductor;
An IC tag or IC tag reader / writer with a communication function provided in a fixed or non-fixed state on the outer surface of the metal container;
In a monitoring apparatus for gas-insulated high-voltage electrical equipment having
The IC with the communication function attached to the inside of the insulating portion that seals the through-hole provided in the metal container or the through-hole penetrating the flange of the flanged branch pipe provided to the metal container or the outside of the insulator. A monitoring device for gas-insulated high-voltage electrical equipment, comprising a tag or IC tag reader / writer.   The antenna part of the IC tag with communication function or the IC tag reader is attached to the inside of the metal container or the insulating part provided in the through hole penetrating the flange of the branch pipe provided in the metal container, and further outside the insulating part. The monitoring apparatus for gas-insulated high-voltage electrical equipment according to claim 1, wherein an IC tag main body or an IC tag reader / writer is attached. The monitoring device for gas-insulated high-voltage electrical equipment according to claim 1, wherein the IC tag with sensor function and communication function is provided inside the metal container and has a non-contact sensor function and communication function. . The sensor function and a communication function IC tag, the branch pipe flange placing through the valve, the monitoring device for a gas insulated high voltage electrical apparatus according to claim 1, wherein. The sensor function and a communication function IC tag, temperature, vibration and partial discharge of providing the function of sensing at least one monitoring device for a gas insulated high voltage electrical apparatus according to claim 1, wherein. The power supply unit, the potential of the or one of the electrodes of the two electrode, flux, to power generation by utilizing the difference in the magnetic field or temperature, monitoring device for a gas insulated high voltage electrical apparatus according to claim 1, wherein. In a metal container constituting a gas-insulated high-voltage electric device, a dish-shaped insulating spacer provided on the flange portion of the metal container for sealing the metal container, a current-carrying member formed at the center of the insulating spacer, An insulating support step for insulatingly supporting the high voltage conductor by connecting to both sides of the current-carrying member;
An energization step for energizing a high voltage conductor that is insulated and supported in the metal container;
A power-on step in which power is generated by the power supply unit of the IC tag step with sensor function and communication function by this energization, and the power is turned on,
A measurement step of measuring the temperature of the high-voltage conductor at the sensor part of the IC tag with a sensor function and a communication function by turning on the power,
A data transmission step of transmitting the measured data to the outside of the metal container;
In a method for monitoring gas-insulated high-voltage electrical equipment having
With the communication function attached to the inside of the insulating portion that seals the through hole provided in the metal container or the through hole that penetrates the flange of the flanged branch pipe provided in the metal container or the outside of the insulator. A method for monitoring a gas-insulated high-voltage electric device, comprising a data transmission step of transmitting the measured data to the outside of the metal container via an IC tag or an IC tag reader / writer.

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