EP3230703A1 - Temperature measurement in switchgear stations - Google Patents
Temperature measurement in switchgear stationsInfo
- Publication number
- EP3230703A1 EP3230703A1 EP14812194.0A EP14812194A EP3230703A1 EP 3230703 A1 EP3230703 A1 EP 3230703A1 EP 14812194 A EP14812194 A EP 14812194A EP 3230703 A1 EP3230703 A1 EP 3230703A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- temperature
- control module
- temperature sensor
- antenna
- voltage part
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/02—Means for indicating or recording specially adapted for thermometers
- G01K1/024—Means for indicating or recording specially adapted for thermometers for remote indication
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/32—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using change of resonant frequency of a crystal
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
- G01K11/22—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using measurement of acoustic effects
- G01K11/26—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using measurement of acoustic effects of resonant frequencies
- G01K11/265—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using measurement of acoustic effects of resonant frequencies using surface acoustic wave [SAW]
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/035—Gas-insulated switchgear
- H02B13/065—Means for detecting or reacting to mechanical or electrical defects
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/02—Details
- H03H9/02535—Details of surface acoustic wave devices
Definitions
- the present invention relates to the measurement of temperature in high voltage electrical switchgear stations, type AIS (Air Insulated Substation) or GIS (Gas Insulated Substation). It also relates to such a switchgear station equipped with temperature measuring means.
- AIS Air Insulated Substation
- GIS Gas Insulated Substation
- An electrical switchgear is composed of a set of electrical equipment, such as circuit breakers, current and voltage transformers, disconnectors and mechanical structures necessary to support the electrical equipment.
- non-contact temperature measuring devices for example portable thermography devices. They make it possible to carry out measurements during maintenance campaigns, for example carried out periodically. These measurements are not made in real time during the operation of the switchgear. In addition, there are difficulties in reaching certain points because of the presence of obstacles, for example an anti-corona ring.
- the invention aims to solve the problems of the prior art by providing a device for measuring temperature in a high voltage part of an electrical equipment station, characterized in that it comprises:
- At least one temperature sensor located at a point of the high voltage part, whose temperature is to be monitored,
- At least one antenna connected to the at least one temperature sensor
- a control module located in a low voltage part of the electrical equipment station
- At least one antenna connected to the control module
- the at least one temperature sensor being adapted to transmit a representative temperature measurement signal and the control module being adapted to receive the representative signal, via the antennas, and to process it to develop a message.
- the measurements are made in real time during operation of the switchgear.
- the invention does not use a battery pack, so there is no maintenance required.
- the temperature sensors used in the context of the invention can be installed as close to hot spots as contacts for example.
- the at least one temperature sensor is of the passive type.
- the at least one temperature sensor is supplied with energy by the control module via the antennas.
- the invention also relates to an electrical equipment station characterized in that it comprises a temperature measuring device as previously introduced.
- the invention also relates to a method for measuring temperature in a high voltage part of a switchgear station, characterized in that it comprises steps of:
- the electrical equipment station and the method have advantages similar to those previously presented.
- the steps of the method according to the invention are implemented by computer program instructions.
- the invention also relates to a computer program on an information medium, this program being capable of being implemented in a computer, this program comprising instructions adapted to the implementation of the steps of a process as described above.
- This program can use any programming language, and be in the form of source code, object code, or intermediate code between source code and object code, such as in a partially compiled form, or in any other form desirable shape.
- the invention also relates to a computer readable information medium, and comprising computer program instructions adapted to the implementation of the steps of a method as described above.
- the information carrier may be any entity or device capable of storing the program.
- the medium may comprise storage means, such as a ROM, for example a CD ROM or a microelectronic circuit ROM, or a magnetic recording means, for example a diskette or a hard disk.
- the information medium may be a transmissible medium such as an electrical or optical signal, which may be conveyed via an electrical or optical cable, by radio or by others. means.
- the program according to the invention can be downloaded in particular on an Internet type network.
- the information carrier may be an integrated circuit in which the program is incorporated, the circuit being adapted to execute or to be used in carrying out the method according to the invention.
- FIG. 1 represents a device for measuring temperature in an electrical equipment station, according to an embodiment of the present invention
- FIG. 2 represents a method for measuring temperature in an electrical equipment station, according to an embodiment of the present invention
- FIG. 3 represents a control module of a temperature measuring device in an electrical equipment station, according to an embodiment of the present invention.
- a disconnector 1 which is equipped with a temperature measuring device.
- the disconnector and its operation are known to those skilled in the art and are not described here.
- the disconnector is conventionally one of the elements of a switchgear. For example, it is desired to monitor the temperature at four hot points of the disconnector 1 which are the two terminals 11 and 12, the contacts 13 and the main knife 14.
- the disconnector also has a low voltage part, separated from the high voltage part by air. These three parts (high voltage, air and low voltage) are schematically separated by dashed lines in FIG.
- the temperature measuring device firstly comprises a set of temperature sensors.
- the temperature sensors are arranged near the hot points of the disconnector 1 that it is desired to monitor.
- the disconnector 1 is equipped with four temperature sensors. Two sensors 21 and 22 are close to the terminals 11 and 12 of the disconnector. A sensor 23 is near the contacts 13, and a last sensor 24 is close to the main knife 14.
- the sensors 21 to 24 are connected in a wired manner to an antenna 25.
- the antenna 25 is preferably shielded to be protected from the electromagnetic fields normally existing in the disconnector due to the currents passing through it. Thus, there is no disturbance on the radio transmission in the range of 500 kHz to 1 MHz because of electromagnetic interference.
- the various electronic circuits that process the exchanged electrical signals are placed in shielded frames to be also protected from electromagnetic fields.
- An antenna can be connected to a single sensor or to several sensors, for example a dozen. Similarly, several antennas similar to the antenna 25, each connected to one or more sensors, can be provided in the high voltage part of the disconnector.
- a control module 26 is connected to an antenna 27.
- the temperature sensors 21 to 24 measure the temperature of the point where they are respectively placed. The measured quantities are sent by radio to the control module 26.
- the sensors 21 to 24 are passive and the energy required to make a measurement is an electromagnetic type energy transmitted from the control module 26 via the antenna 27 and received via the antenna 25. This energy is stored in adapted circuits of the sensors to be used by the sensors for measuring the temperature and transmitting a signal via the antenna 25.
- the module 26 processes the data it receives to determine whether the temperatures in the high voltage portion of the disconnector 1 are normal or not. This determination is for example made by comparing the temperatures measured with nominal temperatures.
- the module 26 can also take into account information provided by other sensors, for example a temperature sensor located at the level of the module 26 itself, or a temperature sensor located outside the disconnector 1.
- the module 26 can also take into account other characteristics of the disconnector 1, for example its time constant, an overload margin or maintenance constraints.
- This formula makes it possible to check the time constant ⁇ to be able to correct the preceding formula in case of slight variations of the constant time, or generate an alert if the value of the time constant varies in large proportions.
- the module 26 develops a message for the supervision of the disconnector 1 or more generally of the switchgear station.
- the message can take different forms and contain more or less information. For example, it is a visual or audible alarm if the temperature is too high. This alarm can be completed by information of an estimated duration of permissible overload.
- the message may also be information indicating that the disconnector requires maintenance, for example if the measured temperatures are high while the currents are normal.
- FIG. 2 represents a temperature measurement method implemented by the device previously described. The process comprises steps E1 to E5.
- Step E1 is the sending of a measurement command from the control module 26 to the temperature sensors 21 to 24, by radio.
- the measurement command is selective and only controls the selected sensor (s).
- the measurement command is for example periodic. The period can be 1 minute.
- the energy required for the sensors 21 to 24 to operate is transmitted from the control module 26 by radio. sending of energy is associated or not with the sending of a measurement command.
- the temperature sensors 21 to 24 receive the measurement command and measure the temperature of the point where they are respectively placed.
- a signal representative of the temperature measurement is formed and the following step E3 is the transmission of the representative signal by the temperature sensors via the antenna 25 to the control module 26. The measured quantities are thus sent by radio to the module order 26.
- the module 26 receives the signal transmitted via the antenna 27.
- the module 26 processes the measurement data to determine whether the temperatures measured in the high voltage part of the disconnector are normal or not. This determination is for example made by comparing the temperatures measured with nominal temperatures.
- This formula makes it possible to check the time constant ⁇ to either correct the formula previous in case of slight variations of the time constant, or generate an alert if the value of the time constant varies in large proportions.
- the module 26 In the next step E5, the module 26 generates a message for the supervision of the disconnector.
- the message depends on the result of the processing performed by the module 26 on the measured temperatures.
- the message is transmitted to a man-machine interface.
- the method according to the invention is implemented by a dedicated integrated circuit or by programmable processors, or in the form of a computer program stored in the memory of a computer.
- FIG. 3 represents a particular embodiment of the control module 26 according to the invention.
- This module has the general structure of a computer. It comprises in particular a processor 100 executing a computer program implementing the method according to the invention, a memory 101, an input interface 102 and an output interface 103.
- the input interface 102 is connected to the antenna 27 and is intended to receive the data to be processed.
- the processor 100 executes the previously exposed treatments. These processes are performed in the form of code instructions of the computer program which are stored by the memory 101 before being executed by the processor 100.
- the memory 101 may furthermore memorize the results of the treatments carried out.
- the output interface 103 provides the results of processing the measured temperatures.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Acoustics & Sound (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
Description
Claims
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/EP2014/077053 WO2016091289A1 (en) | 2014-12-09 | 2014-12-09 | Temperature measurement in switchgear stations |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3230703A1 true EP3230703A1 (en) | 2017-10-18 |
Family
ID=52101317
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14812194.0A Ceased EP3230703A1 (en) | 2014-12-09 | 2014-12-09 | Temperature measurement in switchgear stations |
Country Status (8)
Country | Link |
---|---|
US (1) | US10823622B2 (en) |
EP (1) | EP3230703A1 (en) |
CN (2) | CN115824454A (en) |
AU (1) | AU2014413585B2 (en) |
BR (1) | BR112017011707A2 (en) |
CA (1) | CA2970154C (en) |
MX (1) | MX2017007240A (en) |
WO (1) | WO2016091289A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102016215079A1 (en) * | 2016-08-12 | 2018-02-15 | Siemens Aktiengesellschaft | Switchgear for high voltages and method for operating the switchgear |
CN107978834A (en) * | 2017-10-26 | 2018-05-01 | 芜湖辉灿电子科技有限公司 | A kind of external antenna of the mobile phone signal with temperature sensor |
CN109323770A (en) * | 2018-11-08 | 2019-02-12 | 国网北京市电力公司 | Temperature monitoring system, temperature monitoring method and device |
DE102021213293A1 (en) | 2021-11-25 | 2023-05-25 | Siemens Aktiengesellschaft | Method of operating switchgear and switchgear |
DE102021213290A1 (en) | 2021-11-25 | 2023-05-25 | Siemens Aktiengesellschaft | Method of operating switchgear and switchgear |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4658322A (en) * | 1982-04-29 | 1987-04-14 | The United States Of America As Represented By The Secretary Of The Navy | Arcing fault detector |
SE515936C2 (en) * | 1997-02-12 | 2001-10-29 | Abb Ab | Receiving station for high voltage and method of rebuilding or rebuilding such a station |
US5992215A (en) * | 1997-05-29 | 1999-11-30 | Sensor Research And Development Corp. | Surface acoustic wave mercury vapor sensors |
US7417554B2 (en) * | 2004-10-12 | 2008-08-26 | Gaton Corporation | Wireless system for one or more electrical switching apparatus |
JP4495103B2 (en) * | 2006-03-27 | 2010-06-30 | 三菱電機株式会社 | Gas leak detection device and gas leak detection method |
FR2931310B1 (en) | 2008-05-16 | 2010-10-29 | Areva T & D Sa | TEMPERATURE MEASUREMENT WITHIN ENVELOPES OF POWERED ELECTRICAL EQUIPMENT |
DE102009056060B4 (en) | 2009-08-19 | 2011-09-22 | Vectron International Gmbh & Co.Kg | Measuring system for wireless position-independent measurement of temperature |
BR112013002050A2 (en) * | 2010-07-28 | 2016-06-07 | Ormazabal Y Cia S L U | modular transformation center |
DE102011079935B4 (en) * | 2011-07-27 | 2014-02-13 | Tyco Electronics Raychem Gmbh | Monitoring device for a cable sleeve and cable sleeve with monitoring device |
EP2758790B1 (en) * | 2011-09-25 | 2019-06-26 | Transense Technologies PLC | Antenna for coupling esd sensitive measurement devices located in high voltage electric fields |
SE537691C2 (en) * | 2011-10-26 | 2015-09-29 | Creator Teknisk Utveckling Ab | Wireless sensor device for a high voltage environment and system incorporating such |
CN203231829U (en) | 2013-05-22 | 2013-10-09 | 国家电网公司 | Wireless and passive type real-time temperature monitoring system |
CN203798466U (en) * | 2014-04-24 | 2014-08-27 | 国家电网公司 | Operating temperature measuring device based on surface acoustic wave for conductor connection point in switch cabinet |
CN103983371A (en) | 2014-04-24 | 2014-08-13 | 国家电网公司 | Method for measuring operating temperature of transformer lead connector based on surface acoustic waves |
-
2014
- 2014-12-09 MX MX2017007240A patent/MX2017007240A/en active IP Right Grant
- 2014-12-09 CN CN202211205846.XA patent/CN115824454A/en active Pending
- 2014-12-09 CN CN201480083886.9A patent/CN107003185A/en active Pending
- 2014-12-09 WO PCT/EP2014/077053 patent/WO2016091289A1/en active Application Filing
- 2014-12-09 CA CA2970154A patent/CA2970154C/en active Active
- 2014-12-09 US US15/533,847 patent/US10823622B2/en active Active
- 2014-12-09 AU AU2014413585A patent/AU2014413585B2/en active Active
- 2014-12-09 BR BR112017011707A patent/BR112017011707A2/en not_active Application Discontinuation
- 2014-12-09 EP EP14812194.0A patent/EP3230703A1/en not_active Ceased
Non-Patent Citations (2)
Title |
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None * |
See also references of WO2016091289A1 * |
Also Published As
Publication number | Publication date |
---|---|
CN107003185A (en) | 2017-08-01 |
WO2016091289A1 (en) | 2016-06-16 |
AU2014413585B2 (en) | 2021-02-04 |
CA2970154A1 (en) | 2016-06-16 |
US10823622B2 (en) | 2020-11-03 |
CA2970154C (en) | 2024-04-23 |
AU2014413585A1 (en) | 2017-06-29 |
CN115824454A (en) | 2023-03-21 |
US20170336266A1 (en) | 2017-11-23 |
MX2017007240A (en) | 2017-10-16 |
BR112017011707A2 (en) | 2018-02-27 |
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