JP2020076618A - Device for identifying generation location of corona discharge and method for identifying generation location of corona discharge - Google Patents

Device for identifying generation location of corona discharge and method for identifying generation location of corona discharge Download PDF

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JP2020076618A
JP2020076618A JP2018209413A JP2018209413A JP2020076618A JP 2020076618 A JP2020076618 A JP 2020076618A JP 2018209413 A JP2018209413 A JP 2018209413A JP 2018209413 A JP2018209413 A JP 2018209413A JP 2020076618 A JP2020076618 A JP 2020076618A
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transmission line
frequency
power transmission
corona discharge
recording
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JP7135745B2 (en
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勝哉 梶山
Katsuya Kajiyama
勝哉 梶山
勝男 神光
Katsuo Shinhikari
勝男 神光
和文 橋本
Kazufumi Hashimoto
和文 橋本
大原　久征
Hisamasa Ohara
久征 大原
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Chugoku Electric Power Co Inc
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Abstract

SOLUTION: A device for identifying generation location of corona discharge in a power transmission line includes: a measurement unit for measuring frequency of an electric field around the power transmission line; a comparison unit for comparing the frequency of the electric field with the power frequency of the electric power supplied from the power transmission line; and a first recording unit for recording the sound of a sound pressure level higher than a reference sound level among the sound around the power transmission line, when the frequency of the electric field is higher than the power frequency.SELECTED DRAWING: Figure 2

Description

本発明は、コロナ放電の発生箇所特定装置、コロナ放電の発生箇所特定方法に関する。   The present invention relates to a corona discharge occurrence point identification device and a corona discharge occurrence point identification method.

例えば、降雨の際に、送電線における電線の表面に付着した水滴から生じるコロナ放電に起因して、コロナ騒音（ジリジリ、ザーザー、ブーン等と聞こえる耳障りな音）が発生することがある。コロナ騒音は、電源周波数の２倍の周波数成分を含む自然界にはない音質であるため、人間に感知されやすい。そのため、地域住民からコロナ騒音が聞こえる等の苦情を受けた場合、コロナ騒音の発生箇所を特定し、コロナ放電が発生しなくなるような対策を実施する必要がある。例えば、コロナ騒音の発生箇所を特定する場合、地域住民からの情報に基づいてコロナ騒音が発生したと予測される地点に架設されている送電線の周囲に録音装置（例えばＩＣレコーダ）を設置し、録音装置に長期的且つ継続的に録音されている音の中からコロナ騒音と思われる音を抽出する作業を行っている（例えば特許文献１を参照）。   For example, during rain, corona noise (an irritating sound that sounds irritating, zirza, boons, etc.) may occur due to corona discharge generated from water droplets attached to the surface of an electric wire in a power transmission line. Corona noise is a sound quality that does not exist in nature and includes a frequency component that is twice the power supply frequency, and is therefore easily perceived by humans. Therefore, when a complain is heard from the local residents that corona noise is heard, it is necessary to identify the location where the corona noise is generated and take measures to prevent corona discharge. For example, when identifying the location where corona noise is generated, a recording device (for example, an IC recorder) is installed around a power line installed at a location where corona noise is predicted to be generated based on information from local residents. A sound that seems to be corona noise is being extracted from sounds recorded in a recording device for a long time and continuously (for example, see Patent Document 1).

特開２００６−２３０８６号公報JP, 2006-23086, A

しかし、コロナ騒音の発生箇所を特定するために、長時間に亘る録音内容の中からコロナ騒音と思われる音を抽出しなければならないため、作業者の負担が大きくなることに伴って、コロナ騒音と思われる音を精度よく抽出できず、その結果、コロナ放電の発生箇所を精度よく特定できなくなる虞があった。   However, in order to identify the location where corona noise is generated, it is necessary to extract the sound that seems to be corona noise from the recorded content over a long period of time. It is not possible to extract the sound that seems to be accurate, and as a result, it may not be possible to accurately specify the location where corona discharge has occurred.

そこで、本発明は、作業者の負担を軽減しつつコロナ放電の発生箇所を精度よく特定することが可能な、コロナ放電の発生箇所特定装置及びコロナ放電の発生箇所特定方法を提供することを目的とする。   Therefore, it is an object of the present invention to provide a corona discharge occurrence point identifying device and a corona discharge occurrence point identifying method capable of accurately specifying the occurrence point of corona discharge while reducing the burden on the operator. And

前述した課題を解決する主たる本発明は、送電線におけるコロナ放電の発生箇所を特定する装置であって、前記送電線の周囲における電界の周波数を測定する測定部と、前記電界の周波数を前記送電線から供給される電力の電源周波数と比較する比較部と、前記電界の周波数が前記電源周波数よりも高い場合、前記送電線の周囲における音のうち、基準音圧レベルよりも高い音圧レベルの音を録音する第１記録部と、を備えている。   A main invention for solving the above-mentioned problem is a device for identifying a location where corona discharge occurs in a power transmission line, and a measuring unit for measuring a frequency of an electric field around the power transmission line, and a frequency of the electric field for transmitting the frequency. If the frequency of the electric field is higher than the power supply frequency, the comparing unit for comparing with the power supply frequency of the electric power supplied from the electric wire, of the sound around the power transmission line, the sound pressure level higher than the reference sound pressure level. A first recording unit for recording sound.

本発明の他の特徴については、添付図面及び本明細書の記載により明らかとなる。   Other features of the present invention will be apparent from the accompanying drawings and the description of this specification.

本発明によれば、作業者の負担を軽減しつつコロナ放電の発生箇所を精度よく特定することが可能となる。   According to the present invention, it is possible to accurately specify the location where corona discharge occurs while reducing the burden on the operator.

本実施形態に係るコロナ放電の発生箇所特定装置の設置例を示す図である。It is a figure showing an example of installation of a corona discharge occurrence place specific device concerning this embodiment. 本実施形態に係るコロナ放電の発生箇所特定装置を示すブロック図である。It is a block diagram which shows the generation | occurrence | production location identification device of the corona discharge which concerns on this embodiment. 本実施形態に係るコロナ放電の発生箇所特定装置の動作を示すフローチャートである。It is a flow chart which shows operation of a corona discharge occurrence place specific device concerning this embodiment.

本明細書および添付図面の記載により、少なくとも以下の事項が明らかとなる。   At least the following matters will be made clear by the present specification and the description of the accompanying drawings.

＝＝＝コロナ放電＝＝＝
例えば、鉄塔に架設される送電線は、周囲の空気によって絶縁されている。しかし、送電線の表面における電位傾度の波高値が約３０ｋＶ／ｃｍに達すると、周囲の空気が絶縁力を失うことによって、送電線の表面から薄光及び音を伴う部分的な放電（コロナ放電）が発生する。コロナ放電は発生に関して送電線の劣化や天候（例えば降雨）等の様々な要因の影響を受けるが、コロナ放電が発生すると、電力損失、電波障害、通信障害、電線腐食等を引き起こすこととなる。そこで、電力会社においては、早期に、コロナ放電の発生箇所を特定し、コロナ放電が発生しなくなるための対策を実施する必要がある。 === Corona discharge ===
For example, a power line installed on a steel tower is insulated by ambient air. However, when the crest value of the potential gradient on the surface of the power transmission line reaches about 30 kV / cm, the surrounding air loses the insulating force, so that a partial discharge (corona discharge) accompanied by faint light and sound from the surface of the power transmission line. ) Occurs. Corona discharge is affected by various factors such as deterioration of the transmission line and weather (for example, rainfall), but when the corona discharge occurs, it causes power loss, radio wave interference, communication failure, wire corrosion, and the like. Therefore, it is necessary for the electric power company to identify the location of the corona discharge at an early stage and take measures to prevent the corona discharge from occurring.

＝＝＝発生箇所特定装置の設置例＝＝＝
図１は、本実施形態に係るコロナ放電の発生箇所特定装置の設置例を示す図である。 === Installation example of the location identification device ===
FIG. 1 is a diagram showing an installation example of a corona discharge occurrence location identifying device according to the present embodiment.

電力会社の作業員が、コロナ放電が発生しなくなるための作業を実施することができるように、発生箇所特定装置１は、本実施形態においてコロナ騒音が発生する条件として予め設定されている条件が成立した場合、送電線１００の周囲における音を録音するとともに送電線１００の周囲における紫外線映像を録画する装置である。つまり、発生箇所特定装置１は、送電線１００の周囲における音を録音する録音装置１０（第１記録部）と、送電線１００の周囲における紫外線映像を録画する録画装置２０（第２記録部）と、送電線１００の周囲における電界の周波数を測定する電界周波数測定装置３０と、を含んで構成されている。録音装置１０、録画装置２０、電界周波数測定装置３０の機能の詳細については後述する。録音装置１０は、送電線１００の表面からコロナ放電が発生している期間にコロナ騒音（ジリジリ、ザーザー、ブーン等の耳障りな音）を録音することができるように、又、録画装置２０は、送電線１００の表面からコロナ放電が発生している期間に紫外線映像を録画することができるように、それぞれ鉄塔２００に近い位置（例えば鉄塔２００に隣り合う建物の壁）に設置されている。更に、電界周波数測定装置３０は、送電線１００の周囲における電界の周波数を測定することができるように、鉄塔２００上における送電線１００の架設位置に近い位置に設置されている。   In order that the worker of the electric power company can carry out the work for preventing the corona discharge from occurring, the occurrence location identifying device 1 has the condition set in advance as the condition for generating the corona noise in the present embodiment. When established, it is a device that records sound around the power transmission line 100 and records an ultraviolet image around the power transmission line 100. That is, the occurrence location identification device 1 includes a recording device 10 (first recording unit) that records sound around the power transmission line 100 and a recording device 20 (second recording unit) that records ultraviolet light images around the power transmission line 100. And an electric field frequency measuring device 30 for measuring the frequency of the electric field around the power transmission line 100. Details of the functions of the recording device 10, the recording device 20, and the electric field frequency measuring device 30 will be described later. The recording device 10 is capable of recording corona noise (an jarring sound such as jizz, zerza, and boon) while corona discharge is being generated from the surface of the power transmission line 100, and the recording device 20 is Each is installed at a position close to the steel tower 200 (for example, a wall of a building adjacent to the steel tower 200) so that an ultraviolet ray image can be recorded during a period when corona discharge is generated from the surface of the power transmission line 100. Further, the electric field frequency measuring device 30 is installed on the tower 200 near the installation position of the power transmission line 100 so that the frequency of the electric field around the power transmission line 100 can be measured.

＝＝＝発生箇所特定装置の構成＝＝＝
図２は、本実施形態に係るコロナ放電の発生箇所特定装置を示すブロック図である。 === Configuration of Occurrence Location Identification Device ===
FIG. 2 is a block diagram showing a corona discharge occurrence location identifying device according to the present embodiment.

発生箇所特定装置１は、コロナ放電の発生箇所を特定するために、上記の録音装置１０、録画装置２０、電界周波数測定装置３０を含んで構成されている。   The generation location identification device 1 is configured to include the above-described recording device 10, recording device 20, and electric field frequency measurement device 30 in order to identify the location of occurrence of corona discharge.

＜電界周波数測定装置＞
コロナ放電が発生しているときの送電線１００の周囲における電界の周波数は、送電線１００から供給される電力の電源周波数よりも高くなることが知られている。そこで、電界周波数測定装置３０は、コロナ放電の発生箇所を特定するために、送電線１００の周囲における電界の周波数を測定する。 <Electric field frequency measuring device>
It is known that the frequency of the electric field around the power transmission line 100 when corona discharge is occurring is higher than the power supply frequency of the power supplied from the power transmission line 100. Therefore, the electric field frequency measuring device 30 measures the frequency of the electric field around the power transmission line 100 in order to identify the location where the corona discharge occurs.

電界周波数測定装置３０は、測定部３１、計時部３２、比較部３３、出力部３４を有する。電界周波数測定装置３０は、例えばマイクロプロセッサを含んで構成され、測定部３１、計時部３２、比較部３３、出力部３４の機能は、マイクロプロセッサのソフトウエア処理によって実現されることとしてもよい。   The electric field frequency measuring device 30 includes a measuring unit 31, a clock unit 32, a comparing unit 33, and an output unit 34. The electric field frequency measurement device 30 may be configured to include, for example, a microprocessor, and the functions of the measurement unit 31, the clock unit 32, the comparison unit 33, and the output unit 34 may be realized by software processing of the microprocessor.

測定部３１は、送電線１００の周囲における電界の周波数を測定する。尚、測定部３１による測定動作は、所定周期で行われてもよいし、外部からの指示に従って行われてもよい。   The measurement unit 31 measures the frequency of the electric field around the power transmission line 100. The measuring operation by the measuring unit 31 may be performed in a predetermined cycle or may be performed according to an instruction from the outside.

計時部３２は、現在時刻を計時する、又、計時部３２は、送電線１００の周囲における電界の周波数が送電線１００から供給される電力の電源周波数よりも一定時間継続して高くなっている期間と、送電線１００の周囲における電界の周波数が送電線１００から供給される電力の電源周波数よりも一定時間継続して低くなっている期間と、を計時する。   The clock unit 32 clocks the present time, and the frequency of the electric field around the power transmission line 100 is continuously higher than the power supply frequency of the power supplied from the power transmission line 100 for a certain period of time. The period and the period in which the frequency of the electric field around the power transmission line 100 is continuously lower than the power supply frequency of the power supplied from the power transmission line 100 for a certain period of time are counted.

比較部３３は、測定部３１による測定結果が供給されることによって、送電線１００の周囲における電界の周波数を、送電線１００から供給される電力の電源周波数と比較する。比較部３３は、送電線１００の周囲における電界の周波数が送電線１００から供給される電力の電源周波数よりも一定時間継続して高くなると、コロナ放電が発生している可能性が高いため、録音開始信号を生成する。一方、比較部３３は、送電線１００の周囲における電界の周波数が送電線１００から供給される電力の電源周波数よりも一定時間継続して高くなくなると、コロナ放電が発生していない可能性が高いため、録音停止信号を生成する。尚、送電線１００から供給される電力の電源周波数を示すデータは、比較部３３に予め設定されていることとする。   The comparison unit 33 compares the frequency of the electric field around the power transmission line 100 with the power supply frequency of the power supplied from the power transmission line 100 by being supplied with the measurement result of the measurement unit 31. When the frequency of the electric field around the power transmission line 100 continuously becomes higher than the power supply frequency of the power supplied from the power transmission line 100 for a certain period of time, the comparison unit 33 has a high possibility that corona discharge has occurred, and therefore the recording unit 33 Generate a start signal. On the other hand, if the frequency of the electric field around the power transmission line 100 remains higher than the power supply frequency of the power supplied from the power transmission line 100 for a certain period of time, the comparison unit 33 is likely to have not generated corona discharge. Therefore, a recording stop signal is generated. The data indicating the power supply frequency of the power supplied from the power transmission line 100 is set in the comparison unit 33 in advance.

出力部３４は、録音開始信号及び録音停止信号を無線によって録音装置１０に送信する。   The output unit 34 wirelessly transmits a recording start signal and a recording stop signal to the recording device 10.

＜録音装置＞
録音装置１０は、電界周波数測定装置３０から送信されてくる録音開始信号及び録音停止信号に従って、コロナ騒音が発生している期間に、送電線１００の周囲における音を録音する装置であって、例えばＩＣレコーダを採用することによって実現される。 <Recording device>
The recording device 10 is a device that records a sound around the power transmission line 100 during a period in which corona noise is generated, according to a recording start signal and a recording stop signal transmitted from the electric field frequency measuring device 30. It is realized by adopting an IC recorder.

録音装置１０は、記録部１１及び出力部１２を有する。   The recording device 10 includes a recording unit 11 and an output unit 12.

コロナ騒音が発生しているときの音圧レベルは、コロナ騒音が発生していないときの音圧レベルよりも高くなることが知られている。そこで、記録部１１は、録音開始信号が入力されると、録音動作を開始し、送電線１００の周囲における音のうち基準音圧レベルよりも高い音圧レベルの音を録音する。一方、記録部１１は、録音停止信号が入力されると、録音動作を停止する。例えば、記録部１１は、マイクロプロセッサのソフトウエア処理によってＩＣレコーダの録音開始及び録音停止を制御するように構成されている。尚、基準音圧レベルはコロナ騒音が発生していないときの所定の音圧レベルであって、基準音圧レベルを示すデータは記録部１１に予め設定されていることとする。   It is known that the sound pressure level when corona noise is generated is higher than the sound pressure level when corona noise is not generated. Therefore, when the recording start signal is input, the recording unit 11 starts the recording operation and records a sound having a sound pressure level higher than the reference sound pressure level among sounds around the power transmission line 100. On the other hand, the recording unit 11 stops the recording operation when the recording stop signal is input. For example, the recording unit 11 is configured to control recording start and recording stop of the IC recorder by software processing of a microprocessor. The reference sound pressure level is a predetermined sound pressure level when no corona noise is generated, and the data indicating the reference sound pressure level is preset in the recording unit 11.

出力部１２は、記録部１１に記録されている音データを、コロナ放電の発生箇所を特定するための根拠となる情報として出力する。   The output unit 12 outputs the sound data recorded in the recording unit 11 as information serving as a basis for identifying the location where corona discharge has occurred.

このように、録音装置１０は、送電線１００の周囲における電界の周波数が送電線１００から供給される電力の電源周波数よりも一定時間高くなる条件が成立した場合、コロナ放電が発生していると見做して、送電線１００の周囲における音のうち、基準音圧レベルよりも高い音圧レベルの音を録音することとなる。   As described above, in the recording device 10, when the condition that the frequency of the electric field around the power transmission line 100 is higher than the power supply frequency of the power supplied from the power transmission line 100 for a certain period of time is satisfied, corona discharge occurs. Considering this, among the sounds around the power transmission line 100, a sound having a sound pressure level higher than the reference sound pressure level is recorded.

＜録画装置＞
録画装置２０は、コロナ騒音が発生している期間に、送電線１００の周囲における紫外線映像を録画する装置であって、マイクロプロセッサを含んで構成されている。 <Recording device>
The recording device 20 is a device that records an ultraviolet ray image around the power transmission line 100 during a period when corona noise is generated, and includes a microprocessor.

録画装置２０は、ＵＶカメラ部２１と、マイクロプロセッサのソフトウエア処理によって実現される機能として、記録部２２及び出力部２３を有する。   The recording device 20 has a UV camera unit 21, and a recording unit 22 and an output unit 23 as functions realized by software processing of a microprocessor.

ＵＶカメラ部２１は、電界周波数測定装置３０から録音開始信号が入力されると、送電線１００の周囲における紫外線映像の撮影を開始し、電界周波数測定装置３０から録音停止信号が入力されると、送電線１００の周囲における紫外線映像の撮影を停止する。尚、ＵＶカメラ部２１は、送電線１００を広範囲に撮影することが可能な広角度レンズを備えていることが望ましい。   When the recording start signal is input from the electric field frequency measuring device 30, the UV camera unit 21 starts capturing an ultraviolet image around the power transmission line 100, and when the recording stop signal is input from the electric field frequency measuring device 30, The capturing of the ultraviolet image around the power transmission line 100 is stopped. The UV camera unit 21 is preferably equipped with a wide-angle lens capable of photographing the power transmission line 100 in a wide range.

記録部２２には、ＵＶカメラ部２１が稼働されることによって、ＵＶカメラ部２１から送電線１００の周囲における紫外線映像が入力される。又、記録部２２には、送電線１００の周囲における音の音圧レベルが基準音圧レベルよりも高くなると、記録部１１から録画開始信号が入力され、送電線１００の周囲における音の音圧レベルが基準音圧レベルよりも高くなくなると、記録部１１から録画停止信号が入力される。つまり、記録部１１が送電線１００の周囲における音のうち基準音圧レベルよりも高い音圧レベルの音を録音している期間、記録部２２は送電線１００の周囲における紫外線映像を録画することとなる。   When the UV camera unit 21 is operated, the recording unit 22 receives an ultraviolet image around the power transmission line 100 from the UV camera unit 21. When the sound pressure level of the sound around the power transmission line 100 becomes higher than the reference sound pressure level, the recording start signal is input from the recording unit 11 to the recording unit 22, and the sound pressure level of the sound around the power transmission line 100 is input. When the level is not higher than the reference sound pressure level, the recording stop signal is input from the recording unit 11. That is, while the recording unit 11 is recording a sound having a higher sound pressure level than the reference sound pressure level among the sounds around the power transmission line 100, the recording unit 22 should record the ultraviolet image around the power transmission line 100. Becomes

出力部２３は、記録部２２に記録されている紫外線映像データを、コロナ放電の発生箇所を特定するための根拠となる情報として出力する。   The output unit 23 outputs the ultraviolet ray image data recorded in the recording unit 22 as information serving as a basis for identifying the location where corona discharge has occurred.

このように、録画装置２０は、送電線１００の周囲における音の音圧レベルが基準音圧レベルよりも高くなると、コロナ放電が発生していると見做して、送電線１００の周囲における紫外線映像を録画することとなる。   As described above, when the sound pressure level of the sound around the power transmission line 100 becomes higher than the reference sound pressure level, the recording device 20 considers that corona discharge is occurring, and the ultraviolet light around the power transmission line 100 is considered. The video will be recorded.

＝＝＝発生箇所特定装置の動作＝＝＝
図３は、本実施形態に係るコロナ放電の発生箇所特定装置１の動作を示すフローチャートである。 === Operation of the location identification device ===
FIG. 3 is a flowchart showing the operation of the corona discharge occurrence location identifying device 1 according to the present embodiment.

先ず、電界周波数測定装置３０は、送電線１００の周囲における電界の周波数が送電線１００から供給される電力の電源周波数（５０Ｈｚ又は６０Ｈｚ）よりも一定時間継続して高くなっているか否かを判定する（ステップＳ１）。送電線１００の周囲における電界の周波数が送電線１００から供給される電力の電源周波数よりも一定時間継続して高くなっていない場合（ステップＳ１：ＮＯ）、コロナ放電が発生している可能性が低いため、電界周波数測定装置３０はステップＳ１の判定動作を再度実行する。一方、送電線１００の周囲における電界の周波数が送電線１００から供給される電力の電源周波数よりも一定時間継続して高くなっている場合（ステップＳ１：ＹＥＳ）、コロナ放電が発生している可能性が高いため、録音装置１０は、録音開始信号が発生してから録音停止信号が発生するまでの期間、送電線１００の周囲における音のうち、基準音圧レベルよりも高い音圧レベルの音を抽出し、そのときの現在時刻の情報と紐付けて録音する（ステップＳ２）。   First, the electric field frequency measuring device 30 determines whether or not the frequency of the electric field around the power transmission line 100 is continuously higher than the power supply frequency (50 Hz or 60 Hz) of the power supplied from the power transmission line 100 for a certain period of time. Yes (step S1). When the frequency of the electric field around the power transmission line 100 is not higher than the power supply frequency of the power supplied from the power transmission line 100 for a certain period of time continuously (step S1: NO), there is a possibility that corona discharge has occurred. Since it is low, the electric field frequency measuring apparatus 30 executes the determination operation of step S1 again. On the other hand, if the frequency of the electric field around the power transmission line 100 is continuously higher than the power supply frequency of the power supplied from the power transmission line 100 for a certain period of time (step S1: YES), corona discharge may have occurred. Since the sound recording device 10 has high soundness, the sound recording device 10 generates a sound having a sound pressure level higher than the reference sound pressure level among the sounds around the power transmission line 100 during the period from the generation of the recording start signal to the generation of the recording stop signal. Is extracted and recorded in association with the current time information at that time (step S2).

次に、録画装置２０は、録音装置１０が送電線１００の周囲における音のうち基準音圧レベルよりも高い音圧レベルの音を録音している期間、送電線１００の周囲における紫外線映像を録画する（ステップＳ３）。   Next, the recording device 20 records the ultraviolet image around the power transmission line 100 during a period in which the recording device 10 records a sound having a sound pressure level higher than the reference sound pressure level among the sounds around the power transmission line 100. Yes (step S3).

次に、電界周波数測定装置３０は、送電線１００の周囲における電界の周波数が送電線１００から供給される電力の電源周波数（５０Ｈｚ又は６０Ｈｚ）よりも一定時間継続して高くなっていないか否かを判定する（ステップＳ４）。送電線１００の周囲における電界の周波数が送電線１００から供給される電力の電源周波数よりも引き続き継続して高くなっている場合（ステップＳ４：ＮＯ）、コロナ放電が発生している可能性が高いため、録音装置１０はステップＳ２の動作を再度実行し、録画装置２０はステップＳ３の動作を再度実行する。一方、送電線１００の周囲における電界の周波数が送電線１００から供給される電力の電源周波数よりも一定時間継続して高くなっていない場合（ステップＳ４：ＹＥＳ）、コロナ放電が発生していない可能性が高いため、録音装置１０は録音停止信号の発生によって録音動作を停止し、録画装置２０は録音装置１０の録音動作の停止に伴って録画動作を停止し（ステップＳ５）、電界周波数測定装置３０はステップＳ１の判定動作を再度実行する。   Next, the electric field frequency measurement device 30 determines whether the frequency of the electric field around the power transmission line 100 is continuously higher than the power supply frequency (50 Hz or 60 Hz) of the power supplied from the power transmission line 100 for a certain period of time. Is determined (step S4). When the frequency of the electric field around the power transmission line 100 is continuously higher than the power supply frequency of the power supplied from the power transmission line 100 (step S4: NO), there is a high possibility that corona discharge has occurred. Therefore, the recording device 10 re-executes the operation of step S2, and the recording device 20 re-executes the operation of step S3. On the other hand, if the frequency of the electric field around the power transmission line 100 is not higher than the power supply frequency of the power supplied from the power transmission line 100 for a certain period of time (step S4: YES), it is possible that corona discharge has not occurred. Therefore, the recording device 10 stops the recording operation when the recording stop signal is generated, and the recording device 20 stops the recording operation when the recording operation of the recording device 10 is stopped (step S5). 30 again executes the determination operation of step S1.

このように、コロナ放電は発生したと見做される条件が成立した場合、送電線１００の周囲における音及び紫外線映像を記録することが可能となる。   As described above, when the condition that the corona discharge is considered to be generated is satisfied, it is possible to record the sound and the ultraviolet image around the power transmission line 100.

＝＝＝まとめ＝＝＝
以上説明したように、本実施形態に係るコロナ放電の発生箇所特定装置１は、送電線１００の周囲における電界の周波数を測定する測定部３１と、電界の周波数を送電線１００から供給される電力の電源周波数と比較する比較部３３と、電界の周波数が電源周波数よりも高い場合、送電線１００の周囲における音のうち、基準音圧レベルよりも高い音圧レベルの音を録音する記録部１１と、を備えている。 === Summary ===
As described above, the corona discharge occurrence location identifying device 1 according to the present embodiment measures the frequency of the electric field around the power transmission line 100, and the electric power supplied from the power transmission line 100. And a recording unit 11 that records a sound having a sound pressure level higher than the reference sound pressure level among sounds around the power transmission line 100 when the frequency of the electric field is higher than the power supply frequency. And are equipped with.

更に、比較部３３は、電界の周波数が電源周波数よりも一定時間以上高くなると、記録部１１が録音を開始するための信号を生成する。   Furthermore, the comparison unit 33 generates a signal for the recording unit 11 to start recording when the frequency of the electric field becomes higher than the power supply frequency for a certain period of time or more.

更に、比較部３３は、電界の周波数が電源周波数よりも高くなくなると、記録部１１が録音を停止するための信号を生成する。   Furthermore, the comparison unit 33 generates a signal for the recording unit 11 to stop recording when the frequency of the electric field is no higher than the power supply frequency.

更に、記録部１１が基準音圧レベルよりも高い音圧レベルの音を録音している期間、送電線１００の周囲における紫外線映像を記録する録画装置２０を備えている。   Further, the recording unit 20 is provided with a recording device 20 that records an ultraviolet image around the power transmission line 100 while the recording unit 11 is recording a sound having a sound pressure level higher than the reference sound pressure level.

更に、電界周波数測定装置３０は、送電線１００が架設されている鉄塔２００上の所定位置に設置され、録音装置１０及び録画装置２０は、鉄塔２００に近い位置に設置されている。   Further, the electric field frequency measurement device 30 is installed at a predetermined position on the steel tower 200 on which the power transmission line 100 is installed, and the recording device 10 and the recording device 20 are installed near the steel tower 200.

更に、基準音圧レベルは、コロナ放電が発生していない場合の所定の音圧レベルである。   Further, the reference sound pressure level is a predetermined sound pressure level when no corona discharge is occurring.

そして、本実施形態のコロナ放電の発生箇所特定装置１によれば、作業者の負担を軽減しつつ、送電線１００の周囲における音及び紫外線映像を根拠としてコロナ放電の発生箇所を精度よく特定することが可能となる。   Then, according to the corona discharge occurrence point identification device 1 of the present embodiment, the occurrence point of corona discharge is accurately specified based on the sound and the ultraviolet image around the power transmission line 100 while reducing the burden on the operator. It becomes possible.

尚、上記の実施形態は、本発明の理解を容易にするためのものであり、本発明を限定して解釈するためのものではない。本発明は、その趣旨を逸脱することなく、変更、改良され得るとともに、本発明にはその等価物も含まれる。   Note that the above-described embodiments are for facilitating the understanding of the present invention, and are not for limiting and interpreting the present invention. The present invention can be modified and improved without departing from the spirit thereof, and the present invention includes equivalents thereof.

１ 発生箇所特定装置
１０ 録音装置
１１，２２ 記録部
１２，２３，３４ 出力部
２０ 録画装置
２１ ＵＶカメラ部
３０ 電界周波数測定装置
３１ 測定部
３２ 計時部
３３ 比較部 1 Occurrence location identification device 10 Recording device 11, 22 Recording unit 12, 23, 34 Output unit 20 Recording device 21 UV camera unit 30 Electric field frequency measuring device 31 Measuring unit 32 Timing unit 33 Comparison unit

Claims (7)

送電線におけるコロナ放電の発生箇所を特定する装置であって、
前記送電線の周囲における電界の周波数を測定する測定部と、
前記電界の周波数を前記送電線から供給される電力の電源周波数と比較する比較部と、
前記電界の周波数が前記電源周波数よりも高い場合、前記送電線の周囲における音のうち、基準音圧レベルよりも高い音圧レベルの音を録音する第１記録部と、
を備えたことを特徴とするコロナ放電の発生箇所特定装置。 A device for identifying the location of corona discharge in a power transmission line,
A measuring unit for measuring the frequency of the electric field around the power transmission line,
A comparison unit that compares the frequency of the electric field with the power supply frequency of the electric power supplied from the power transmission line;
When the frequency of the electric field is higher than the power supply frequency, of the sounds around the power transmission line, a first recording unit that records a sound having a sound pressure level higher than a reference sound pressure level,
A device for identifying the location of corona discharge, characterized by being equipped with. 前記比較部は、前記電界の周波数が前記電源周波数よりも一定時間以上高くなると、前記第１記録部が録音を開始するための信号を生成する
ことを特徴とする請求項１に記載のコロナ放電の発生箇所特定装置。 The corona discharge according to claim 1, wherein the comparison unit generates a signal for the first recording unit to start recording when the frequency of the electric field becomes higher than the power supply frequency for a certain period of time or more. Occurrence location identification device. 前記比較部は、前記電界の周波数が前記電源周波数よりも高くなくなると、前記第１記録部が録音を停止するための信号を生成する
ことを特徴とする請求項２に記載のコロナ放電の発生箇所特定装置。 The corona discharge according to claim 2, wherein the comparison unit generates a signal for stopping the recording by the first recording unit when the frequency of the electric field is not higher than the power supply frequency. Location identification device. 前記第１記録部が前記基準音圧レベルよりも高い音圧レベルの音を録音している期間、前記送電線の周囲における紫外線映像を録画する第２記録部
を更に備えたことを特徴とする請求項１〜３の何れか一項に記載のコロナ放電の発生箇所特定装置。 It is characterized by further comprising a second recording unit for recording an ultraviolet image around the power transmission line during a period in which the first recording unit records a sound having a sound pressure level higher than the reference sound pressure level. The corona discharge occurrence location identifying device according to claim 1. 前記測定部は、前記送電線が架設されている鉄塔上の所定位置に設置され、
前記第１記録部及び前記第２記録部は、前記鉄塔に近い位置に設置される
ことを特徴とする請求項４に記載のコロナ放電の発生箇所特定装置。 The measurement unit is installed at a predetermined position on a steel tower on which the power transmission line is installed,
The corona discharge occurrence location identifying device according to claim 4, wherein the first recording unit and the second recording unit are installed at positions close to the steel tower. 前記基準音圧レベルは、前記コロナ放電が発生していない場合の所定の音圧レベルである
ことを特徴とする請求項１〜５の何れか一項に記載のコロナ放電の発生箇所特定装置。 The said reference | standard sound pressure level is a predetermined sound pressure level when the said corona discharge has not generate | occur | produced. The corona discharge generation | occurrence | production location identification apparatus in any one of the Claims 1-5 characterized by the above-mentioned. 送電線の周囲における電界の周波数を測定するステップと、
前記電界の周波数を前記送電線から供給される電力の電源周波数と比較するステップと、
前記電界の周波数が前記電源周波数よりも高い場合、前記送電線の周囲における音のうち、基準音圧レベルよりも高い音圧レベルの音を録音するステップと、
を含むことを特徴とするコロナ放電の発生箇所特定方法。 Measuring the frequency of the electric field around the transmission line,
Comparing the frequency of the electric field with a power supply frequency of power supplied from the power transmission line;
If the frequency of the electric field is higher than the power supply frequency, among the sounds around the power transmission line, recording a sound having a sound pressure level higher than a reference sound pressure level,
A method for identifying the location of corona discharge, which comprises:
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7464206B1 (en) 2023-09-29 2024-04-09 中国電力株式会社 Facility monitoring system and facility monitoring method

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS507466B1 (en) * 1970-06-01 1975-03-26
JPH11326438A (en) * 1998-05-12 1999-11-26 Hokuriku Electric Power Co Inc:The Partial discharge detecting method
JP2006023086A (en) * 2004-07-06 2006-01-26 Shikoku Electric Power Co Inc Corona noise monitoring device, corona noise monitoring system, and corona noise monitoring method
US20140270205A1 (en) * 2013-03-14 2014-09-18 Hubbell Incorporated Apparatuses, systems and methods for detecting corona
WO2015125228A1 (en) * 2014-02-19 2015-08-27 中国電力株式会社 Wind-noise recording system and wind-noise recording method
JP2015175793A (en) * 2014-03-17 2015-10-05 株式会社ジェイ・パワーシステムズ Noise measurement system, noise measurement program, and noise measurement method

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS507466B1 (en) * 1970-06-01 1975-03-26
JPH11326438A (en) * 1998-05-12 1999-11-26 Hokuriku Electric Power Co Inc:The Partial discharge detecting method
JP2006023086A (en) * 2004-07-06 2006-01-26 Shikoku Electric Power Co Inc Corona noise monitoring device, corona noise monitoring system, and corona noise monitoring method
US20140270205A1 (en) * 2013-03-14 2014-09-18 Hubbell Incorporated Apparatuses, systems and methods for detecting corona
WO2015125228A1 (en) * 2014-02-19 2015-08-27 中国電力株式会社 Wind-noise recording system and wind-noise recording method
JP2015175793A (en) * 2014-03-17 2015-10-05 株式会社ジェイ・パワーシステムズ Noise measurement system, noise measurement program, and noise measurement method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7464206B1 (en) 2023-09-29 2024-04-09 中国電力株式会社 Facility monitoring system and facility monitoring method

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