JPH09149518A - Charging display device for high voltage line - Google Patents
Charging display device for high voltage lineInfo
- Publication number
- JPH09149518A JPH09149518A JP30786995A JP30786995A JPH09149518A JP H09149518 A JPH09149518 A JP H09149518A JP 30786995 A JP30786995 A JP 30786995A JP 30786995 A JP30786995 A JP 30786995A JP H09149518 A JPH09149518 A JP H09149518A
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- Japan
- Prior art keywords
- voltage
- display device
- charging
- detection
- optical
- 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.)
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- Measurement Of Current Or Voltage (AREA)
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Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、高圧線の課電表示
装置に係り、特に、架空送電線が課電されているか否か
の判別を容易にする技術に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a voltage display device for a high-voltage line, and more particularly to a technique for facilitating determination of whether or not an overhead power transmission line is charged.
【０００２】[0002]
【従来の技術】図５は、架空送電線等の高圧線が課電さ
れているか否かの判別を行なうために使用される検電装
置の構造例を示している。該検電装置は、操作棒１の先
端に、検電器２と、架空送電線等の高圧線の検電箇所に
接触させるための接触電極３とを設けておくとともに、
検電器２及び接触電極３に対して電気絶縁距離を確保す
るための絶縁部４と、操作を行なうための把持部５とを
有し、接触電極３を検電箇所に接触させる操作により、
検電器２と接地部との間の静電容量等に基づく分圧によ
り検電器２を作動させ、検電器２のネオンランプ等の検
出表示部６を点灯させるようにしたものである。2. Description of the Related Art FIG. 5 shows an example of the structure of a power detection device used for determining whether or not a high voltage line such as an overhead power transmission line is charged. The power detection device is provided with a voltage detector 2 and a contact electrode 3 for contacting a voltage detection point of a high-voltage line such as an overhead power transmission line at the tip of the operation rod 1.
It has an insulating part 4 for securing an electrical insulation distance with respect to the voltage detector 2 and the contact electrode 3, and a grip part 5 for performing an operation.
The voltage detector 2 is operated by a partial pressure based on the capacitance or the like between the voltage detector 2 and the ground, and the detection display unit 6 such as a neon lamp of the voltage detector 2 is turned on.
【０００３】[0003]
【発明が解決しようとする課題】しかし、このような検
電装置であると、検電器２の検出表示部６が操作棒１の
先端付近に位置しているため、超高圧架空送電線等にあ
っては、検出表示部６までの距離が大きくなって見えに
くくなるとともに、検電作業環境が明るい場合には、周
囲の光線の影響を受けて表示確認性が低下し易くなる。
また、検出表示部６を大型化して見易くしようとする
と、重量増加に基づいて作業性が損なわれる。However, in such a power detection device, since the detection display unit 6 of the voltage detector 2 is located near the tip of the operating rod 1, it is necessary to use an ultra-high voltage overhead transmission line or the like. In this case, the distance to the detection display unit 6 is increased to make it difficult to see, and when the power detection work environment is bright, the display confirmation is likely to be deteriorated due to the influence of ambient light.
Further, if the size of the detection display unit 6 is increased to make it easier to see, the workability is impaired due to an increase in weight.
【０００４】本発明は、上述の事情に鑑みてなされたも
ので、以下の目的を達成するものである。 操作者の見易い位置で課電の有無を確認すること。 課電の有無の判別精度を高めること。 検電情報を遠隔地に伝送して表示させること。[0004] The present invention has been made in view of the above circumstances, and achieves the following objects. Check whether or not electricity is applied at a position where the operator can easily see it. Improve the accuracy of determining the presence or absence of charging. To transmit and display power detection information to a remote location.
【０００５】[0005]
【課題を解決するための手段】高圧線が課電されている
か否かを検電し表示させる課電表示装置であって、絶縁
棒の先端に、検電部と、該検電部に接続され課電部に接
触させる電極部とが配されるとともに、絶縁棒に、検電
部で検出した検電情報を電気絶縁状態で伝送する情報伝
送手段が配され、該情報伝送手段に、検電表示手段が接
続状態に配された構成を有するものである。検電部にあ
っては、課電部と接地部との間の電位差に基づく分圧に
よって作動して発光するものや、予め搭載した小型バッ
テリーで作動する発光素子等を採用することができる。
情報伝送手段としては、絶縁棒の基部に検電部に対向状
態に配され、検電部の発光現象を光学的に拡大して目視
により監視するための望遠鏡やテレビカメラを採用する
ことができる。テレビカメラの場合には、映像情報がデ
ィスプレー装置まで伝送される。情報伝送手段の他の技
術として、検電部の近傍位置において検電部の検知信号
を増幅して電／光変換により光信号化する電／光変換器
と、該電／光変換器に接続されて光信号を伝送する光フ
ァイバと、該光ファイバに接続され光／電変換により電
気信号化する光／電変換器とよりなり、該光／電変換器
に課電情報を表示するディスプレー装置を接続した構成
を採用することができる。また情報伝送手段として、検
電部の検知信号を無線信号化する送信機と、該送信機か
らの無線電波を電気信号化する受信機とからなる構成を
採用することができる。[Means for Solving the Problems] A voltage display device for detecting and displaying whether or not a high-voltage line is being charged, which is connected to the voltage detection unit at the tip of an insulating rod and the voltage detection unit. And an electrode part to be brought into contact with the voltage applying part, and an information transmitting means for transmitting the electric detection information detected by the electric detecting part in an electrically insulated state to the insulating rod, and the information transmitting means detects the electric power. The electronic display means has a configuration in which it is arranged in a connected state. The power detection unit may employ a light-emitting element that operates by a partial pressure based on the potential difference between the power-supply unit and the ground unit to emit light, or a light-emitting element that operates with a small battery that is installed in advance.
As the information transmission means, a telescope or a TV camera, which is arranged on the base of the insulating rod so as to face the detection section and optically enlarges the light emission phenomenon of the detection section and visually monitors it, can be adopted. . In the case of a television camera, video information is transmitted to the display device. As another technique of the information transmission means, an electric / optical converter that amplifies a detection signal of the electric detection unit in the vicinity of the electric detection unit and converts it into an optical signal by electric / optical conversion, and is connected to the electric / optical converter A display device which comprises an optical fiber for transmitting an optical signal and an optical / electrical converter which is connected to the optical fiber and converts into an electric signal by optical / electrical conversion, and which displays charging information on the optical / electrical converter. It is possible to adopt a configuration in which is connected. Further, as the information transmission means, it is possible to adopt a configuration including a transmitter that converts the detection signal of the power detection unit into a wireless signal and a receiver that converts the radio wave from the transmitter into an electrical signal.
【０００６】[0006]
【発明の実施の形態】以下、本発明に係る高圧線の課電
表示装置の第１実施形態について、図１に基づいて説明
する。BEST MODE FOR CARRYING OUT THE INVENTION A first embodiment of a high voltage line charging display device according to the present invention will be described below with reference to FIG.
【０００７】該課電表示装置１０は、耐絶縁性に優れた
絶縁体によって形成された絶縁棒１１と、該絶縁棒１１
の先端に配され課電検出時に点灯するネオンランプ等の
検電部１２と、該検電部１２に接続され絶縁棒１１の先
端に突出状態に配される電極部１３と、絶縁棒１１にお
ける先端及び基部間に電気絶縁状態を保持した状態で配
される情報伝送手段１４と、該情報伝送手段１４に接続
され検電情報を表示するディスプレー装置（検電表示手
段）１５とからなるものである。The charging display device 10 includes an insulating rod 11 formed of an insulator having excellent insulation resistance, and the insulating rod 11
Of the neon lamp or the like which is arranged at the tip of the insulating rod 11 and which is lit at the time of detecting the applied voltage, the electrode portion 13 which is connected to the detecting portion 12 and which is arranged at the tip of the insulating rod 11 so as to project. The information transmission means 14 is arranged between the tip and the base while maintaining an electrical insulation state, and the display device (electric detection display means) 15 connected to the information transmission means 14 and displaying the detection information. is there.
【０００８】前記絶縁棒１１は、例えば合成樹脂製棒や
積層絶縁材の棒体からなり、先端の検電部１２と基部の
把持部１１ａとの間が、高圧線の課電部の大地電圧に対
して十分な絶縁性を確保する絶縁部１１ｂとされてい
る。The insulating rod 11 is made of, for example, a synthetic resin rod or a rod made of laminated insulating material, and the space between the voltage detecting portion 12 at the tip and the grip portion 11a at the base is the ground voltage of the voltage applying portion of the high voltage line. The insulating portion 11b is configured to ensure a sufficient insulating property.
【０００９】前記検電部１２は、電極部１３と把持部１
１ａまたは接地部（大地）との間の電気絶縁体によるイ
ンピーダンス（大地間静電容量Ｃや絶縁抵抗Ｒ）と、ネ
オンランプの端子間のインピーダンスとに基づき配分さ
れる大地電圧の分圧によって無電源で作動して発光を生
じるものであり、周囲の環境からの入射光の影響を軽減
するための遮光カバー１２ａが具備される。The voltage detector 12 includes an electrode portion 13 and a grip portion 1.
1a or the impedance (electric capacitance C between earth and insulation resistance R) between the earth and the ground portion (earth) and the impedance between the terminals of the neon lamp, which causes no voltage division of the earth voltage. It is operated by a power source to emit light, and is provided with a light shielding cover 12a for reducing the influence of incident light from the surrounding environment.
【００１０】また、検電部１２の他の技術例として、液
晶素子が採用され、この場合にあっては、印加される電
位差に基づいて液晶素子を表示させればよく、液晶素子
作動用の電源は、周囲光によって作動する太陽電池が適
用される。なお、液晶素子による表示は、文字，数字，
記号等により行なうことができ、電位差に基づいて、大
地間電圧を数値化して表示することも可能である。A liquid crystal element is employed as another technical example of the power detection unit 12, and in this case, the liquid crystal element may be displayed based on the applied potential difference, which is used for operating the liquid crystal element. As a power source, a solar cell operated by ambient light is applied. In addition, the display by the liquid crystal element, letters, numbers,
It is possible to use a symbol or the like, and it is also possible to digitize and display the voltage between grounds based on the potential difference.
【００１１】前記情報伝送手段１４は、電極部１３と把
持部１１ａ（または大地）との間の電気絶縁状態を保持
するとともに、検電部１２で検出した検電情報を所望箇
所まで伝送するものであり、図１例にあっては、把持部
１１ａに支持されるとともに、絶縁部１１ｂの長さ分だ
け間隔を空けて検電部１２に対向状態の望遠レンズを有
するテレビカメラからなっている。The information transmission means 14 maintains the electrical insulation state between the electrode portion 13 and the grip portion 11a (or the ground), and transmits the detection information detected by the detection portion 12 to a desired location. In the example of FIG. 1, the television camera is supported by the grip portion 11a and has a telephoto lens facing the power detection portion 12 at an interval corresponding to the length of the insulating portion 11b. .
【００１２】前記ディスプレー装置（検電表示手段）１
５は、情報伝送手段１４に対して信号ケーブル１５ａを
介して接続状態に地上等の所望の位置に配され、検電部
１２及びその近傍の状況を映像として表示するものとさ
れる。The display device (electrical detection display means) 1
5 is arranged at a desired position on the ground or the like in a connected state to the information transmission means 14 via a signal cable 15a, and displays the situation of the power detection section 12 and its vicinity as an image.
【００１３】このような構成の課電表示装置１０である
と、絶縁棒１１の把持部１１ａの操作により、電極部１
３を架空送電線等の高圧線に接触させると、高圧線が課
電状態となっている場合には、検電部１２に付与される
分圧に基づく電位差により、検電部１２が作動状態とな
って点灯し、非課電状態となっている場合には、検電部
１２が点灯しないため、高圧線が課電されているか否か
の判別が可能となる。In the charging display device 10 having such a structure, the electrode portion 1 is operated by operating the grip portion 11a of the insulating rod 11.
When 3 is brought into contact with a high voltage line such as an overhead power transmission line, if the high voltage line is in a voltage-applied state, the voltage detection unit 12 is in an operating state due to a potential difference based on the partial pressure applied to the voltage detection unit 12. When the power is turned on and the power is not applied, the power detection unit 12 is not turned on, and it is possible to determine whether or not the high voltage line is applied.
【００１４】したがって、情報伝送手段１４及びディス
プレー装置１５を作動させて、検電部１２の点灯の有無
を撮像するとともに、信号ケーブル１５ａによりディス
プレー装置１５に映像として表示させることにより、遠
隔地等の所望位置において課電の有無を判別することが
できる。Therefore, the information transmission means 14 and the display device 15 are operated to capture an image of whether or not the power detection section 12 is turned on, and the signal cable 15a is used to display the image on the display device 15 as an image so that a remote place or the like can be displayed. It is possible to determine whether or not the power is applied at the desired position.
【００１５】なお、検電部１２の点灯が弱い場合にあっ
ても、遮光カバー１２ａにより周囲光の影響を低減する
ことと、情報伝送手段１４に望遠レンズを配して拡大す
ることと、課電部に対し電極部１３の接触と非接触とを
繰り返し、接触の前後における点灯強さのレベルの比較
を行なうこと等によって、識別性を高めることができ
る。Even when the light detection unit 12 is weakly lit, the influence of ambient light is reduced by the light-shielding cover 12a, and a telephoto lens is arranged in the information transmission means 14 to enlarge it. The distinctiveness can be improved by repeating contact and non-contact of the electrode portion 13 with respect to the electric part and comparing the level of lighting intensity before and after the contact.
【００１６】図２は、本発明に係る高圧線の課電表示装
置の第２実施形態を示すもので、図１で説明した絶縁棒
１１の先端に配される検電部１２が、電圧検知回路１２
ｂと、該電圧検知回路１２ｂに接続され出力信号を増幅
するとともに、高周波パルス化する発振回路１２ｃとか
らなるものとされ、情報伝送手段１４が、検電部１２の
発振回路１２ｃに接続されその出力信号を電／光変換す
る電／光変換器１４ａと、該電／光変換器１４ａに光学
的に接続され検電部１２と把持部１１ａとの間を電気的
に絶縁状態を保持しながら検出信号を伝送する光ファイ
バ１４ｂと、該光ファイバ１４ｂに接続されその伝送信
号を光／電変換する光／電変換器１４ｃとからなるもの
とされている。そして、光／電変換器１４ｃには、その
出力信号を波形化してブラウン管等に表示するための表
示回路（検電表示手段）１６が接続される。FIG. 2 shows a second embodiment of the high-voltage line voltage application display device according to the present invention. The voltage detecting section 12 arranged at the tip of the insulating rod 11 described in FIG. Circuit 12
b and an oscillating circuit 12c connected to the voltage detecting circuit 12b for amplifying an output signal and for converting the signal into a high frequency pulse. The information transmitting means 14 is connected to the oscillating circuit 12c of the power detecting section 12 and An electric / optical converter 14a for converting an output signal into an electric light, and an electric insulation between the electric detection unit 12 and the grip 11a which are optically connected to the electric / optical converter 14a. It is composed of an optical fiber 14b for transmitting a detection signal and an optical / electrical converter 14c connected to the optical fiber 14b for optical / electrical conversion of the transmission signal. A display circuit (electric detection display means) 16 for converting the output signal into a waveform and displaying it on a cathode ray tube is connected to the photoelectric converter 14c.
【００１７】そして、図２例では、電極部１３を課電部
に接触させると、検電部１２の検電信号が光信号化され
て、光ファイバ１４ｂにより伝送されるとともに、表示
回路１６の作動により課電の有無の表示がなされる。In the example shown in FIG. 2, when the electrode section 13 is brought into contact with the voltage applying section, the detection signal of the detection section 12 is converted into an optical signal and transmitted by the optical fiber 14b, and at the same time, the display circuit 16 displays. Depending on the operation, the presence or absence of electricity application is displayed.
【００１８】図３は、本発明に係る高圧線の課電表示装
置の第３実施形態を示すもので、検電部１２における電
圧検知回路１２ｂの出力が十分な大きさである場合に、
情報伝送手段１４により光信号として所望位置の表示回
路（検電表示手段）１６まで伝送されて、課電の有無の
表示がなされる。FIG. 3 shows a third embodiment of the high voltage line voltage application display device according to the present invention. When the output of the voltage detection circuit 12b in the power detection section 12 is sufficiently large,
The information transmission means 14 transmits it as an optical signal to a display circuit (electric detection display means) 16 at a desired position to display the presence or absence of charging.
【００１９】図４は、本発明に係る高圧線の課電表示装
置の第４実施形態を示すもので、図２及び図３例と同様
な検電部１２を有するとともに、情報伝送手段１４とし
て、検電部１２に接続されて検電部１２の検知信号を無
線信号化する送信機１４ｄと、該送信機１４ｄから出力
された無線電波を電気信号化して表示回路１６に伝送す
る受信機１４ｅとを有している。これらの送信機１４ｄ
及び受信機１４ｅの電源は、小型バッテリーや太陽電池
により供給される。FIG. 4 shows a fourth embodiment of a high-voltage line voltage application display device according to the present invention, which has a power detection section 12 similar to the examples of FIGS. 2 and 3 and also serves as an information transmission means 14. A transmitter 14d that is connected to the power detection unit 12 and converts the detection signal of the power detection unit 12 into a wireless signal; and a receiver 14e that converts the radio wave output from the transmitter 14d into an electrical signal and transmits it to the display circuit 16. And have. These transmitters 14d
The power of the receiver 14e is supplied by a small battery or a solar cell.
【００２０】[0020]
【発明の効果】本発明に係る高圧線の課電表示装置は、
絶縁棒の先端に、検電部と電極部とが配されるととも
に、検電部に検電情報を電気絶縁状態で伝送する情報伝
送手段が配され、情報伝送手段に検電表示手段が配され
るから、以下のような効果を奏する。 （１） 操作者の見易い位置まで検電情報を伝送して表
示させ、課電の有無を容易に確認することができる。 （２） 検電部の検電情報をディスプレー装置に表示さ
せることにより、課電の有無の判別精度を高めることが
できる。 （３） 情報伝送手段を介して光信号化して伝送するこ
とにより、遠隔地における表示を自由に行なうことがで
きる。The voltage applied display device for a high voltage line according to the present invention comprises:
At the tip of the insulating rod, the electric detection section and the electrode section are arranged, the electric detection section is provided with an information transmission means for transmitting electric detection information in an electrically insulated state, and the information transmission means is provided with an electric detection display means. Therefore, the following effects are achieved. (1) It is possible to easily confirm the presence / absence of electricity application by transmitting and displaying the electricity detection information to a position where the operator can easily see it. (2) By displaying the power detection information of the power detection unit on the display device, it is possible to improve the accuracy of determining whether or not the power is applied. (3) Displaying at a remote place can be freely performed by converting the signal into an optical signal and transmitting it through the information transmitting means.
【図１】本発明に係る高圧線の課電表示装置の第１実施
形態を示す正面図である。FIG. 1 is a front view showing a first embodiment of a high voltage line voltage application display device according to the present invention.
【図２】本発明に係る高圧線の課電表示装置の第２実施
形態を示す結線図である。FIG. 2 is a connection diagram showing a second embodiment of a high voltage line charging display device according to the present invention.
【図３】本発明に係る高圧線の課電表示装置の第３実施
形態を示す結線図である。FIG. 3 is a connection diagram showing a third embodiment of a high voltage line voltage application display device according to the present invention.
【図４】本発明に係る高圧線の課電表示装置の第４実施
形態を示す結線図である。FIG. 4 is a wiring diagram showing a fourth embodiment of a high voltage line voltage application display device according to the present invention.
【図５】従来の検電装置例を示す正面図である。FIG. 5 is a front view showing an example of a conventional power detection device.
１０ 課電表示装置 １１ 絶縁棒 １１ａ 把持部 １１ｂ 絶縁部 １２ 検電部 １２ａ 遮光カバー １２ｂ 電圧検知回路 １２ｃ 発振回路 １３ 電極部 １４ 情報伝送手段 １４ａ 電／光変換器 １４ｂ 光ファイバ １４ｃ 光／電変換器 １４ｄ 送信機 １４ｅ 受信機 １５ ディスプレー装置（検電表示手段） １５ａ 信号ケーブル １６ 表示回路（検電表示手段） 10 Charge Display Device 11 Insulating Rod 11a Grip Part 11b Insulating Part 12 Detecting Part 12a Shield Cover 12b Voltage Detection Circuit 12c Oscillation Circuit 13 Electrode Part 14 Information Transmission Means 14a Electric / Optical Converter 14b Optical Fiber 14c Optical / Electronic Converter 14d transmitter 14e receiver 15 display device (voltage detection display means) 15a signal cable 16 display circuit (voltage detection display means)
Claims (4)
表示させる課電表示装置であって、絶縁棒（１１）の先
端に、検電部（１２）と、該検電部に接続され課電部に
接触させる電極部（１３）とが配されるとともに、絶縁
棒に、検電部で検出した検電情報を電気絶縁状態で伝送
する情報伝送手段（１４）が配され、該情報伝送手段
に、検電表示手段（１５，１６）が接続状態に配される
ことを特徴とする高圧線の課電表示装置。1. A voltage display device for detecting and displaying whether or not a high-voltage line is charged, which comprises a voltage detection unit (12) at the tip of an insulating rod (11) and the voltage detection unit. And an electrode section (13) connected to the charging section and brought into contact with the charging section, and an information transmission means (14) for transmitting the detection information detected by the detection section in an electrically insulated state to the insulating rod. A voltage-applied display device for a high-voltage line, characterized in that a voltage detection display means (15, 16) is connected to the information transmission means.
１）の基部に検電部（１２）に対向状態に配されてその
監視をするテレビカメラであることを特徴とする請求項
１記載の高圧線の課電表示装置。2. The information transmission means (14) comprises an insulating rod (1).
2. The high voltage line voltage application display device according to claim 1, which is a television camera arranged at the base of 1) so as to face the power detection unit (12) and monitors the same.
２）の検知信号を増幅して電／光変換により光信号化す
る電／光変換器（１４ａ）と、該電／光変換器に接続さ
れて光信号を伝送する光ファイバ（１４ｂ）と、該光フ
ァイバに接続され光／電変換により電気信号化する光／
電変換器（１４ｃ）とからなることを特徴とする請求項
１記載の高圧線の課電表示装置。3. The information transmitting means (14) comprises a power detecting section (1).
An electro-optical converter (14a) for amplifying the detection signal of 2) and converting it into an optical signal by electro-optical conversion; and an optical fiber (14b) connected to the electro-optical converter for transmitting an optical signal, Light connected to the optical fiber and converted into an electrical signal by optical / electrical conversion
The high voltage line charging display device according to claim 1, characterized in that the display device comprises a voltage converter (14c).
２）の検知信号を無線信号化する送信機（１４ｄ）と、
無線電波を電気信号化する受信機（１４ｅ）とからなる
ことを特徴とする請求項１記載の高圧線の課電表示装
置。4. The information transmitting means (14) comprises a power detecting section (1).
A transmitter (14d) for converting the detection signal of 2) into a wireless signal;
2. The high voltage line voltage application display device according to claim 1, comprising a receiver (14e) for converting radio waves into electric signals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30786995A JPH09149518A (en) | 1995-11-27 | 1995-11-27 | Charging display device for high voltage line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30786995A JPH09149518A (en) | 1995-11-27 | 1995-11-27 | Charging display device for high voltage line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09149518A true JPH09149518A (en) | 1997-06-06 |
Family
ID=17974144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30786995A Pending JPH09149518A (en) | 1995-11-27 | 1995-11-27 | Charging display device for high voltage line |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09149518A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200338127Y1 (en) * | 2003-10-27 | 2004-01-13 | 한국전력공사 | Insulated rod of grounding tool for power plant and substation with electroscope function |
| CN102969670A (en) * | 2011-08-29 | 2013-03-13 | 株式会社永木精机 | Grounding rod remote management system |
| CN104267246A (en) * | 2014-10-22 | 2015-01-07 | 四川蓝讯宝迩电子科技有限公司 | Electrified display convenient to install |
| CN104267248A (en) * | 2014-10-22 | 2015-01-07 | 四川蓝讯宝迩电子科技有限公司 | Installation structure of outdoor equipotential high-voltage live displayer |
| CN104280595A (en) * | 2014-10-22 | 2015-01-14 | 四川蓝讯宝迩电子科技有限公司 | Rain and snow prevention high-voltage charged displayer |
| CN104280594A (en) * | 2014-10-22 | 2015-01-14 | 四川蓝讯宝迩电子科技有限公司 | Live display device preventing springs from rusting |
| KR102310204B1 (en) * | 2020-06-18 | 2021-10-08 | 한국전력공사 | Electricity detector with ground clamp control |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0353284A (en) * | 1989-07-21 | 1991-03-07 | Takaoka Electric Mfg Co Ltd | Transmission display type charging indicator |
| JPH05316617A (en) * | 1992-05-11 | 1993-11-26 | Nippon Telegr & Teleph Corp <Ntt> | Method and device for diagnosing deterioration of overhead suspension wire |
| JPH06109555A (en) * | 1992-09-30 | 1994-04-19 | Ngk Insulators Ltd | Temperature monitor for power line |
| JPH06148254A (en) * | 1992-11-09 | 1994-05-27 | Tohoku Electric Power Co Inc | Flashover display device |
| JPH07123551A (en) * | 1993-09-01 | 1995-05-12 | Tokyo Electric Power Co Inc:The | Phase detector for overhead transmission/distribution line and using method thereof |
-
1995
- 1995-11-27 JP JP30786995A patent/JPH09149518A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0353284A (en) * | 1989-07-21 | 1991-03-07 | Takaoka Electric Mfg Co Ltd | Transmission display type charging indicator |
| JPH05316617A (en) * | 1992-05-11 | 1993-11-26 | Nippon Telegr & Teleph Corp <Ntt> | Method and device for diagnosing deterioration of overhead suspension wire |
| JPH06109555A (en) * | 1992-09-30 | 1994-04-19 | Ngk Insulators Ltd | Temperature monitor for power line |
| JPH06148254A (en) * | 1992-11-09 | 1994-05-27 | Tohoku Electric Power Co Inc | Flashover display device |
| JPH07123551A (en) * | 1993-09-01 | 1995-05-12 | Tokyo Electric Power Co Inc:The | Phase detector for overhead transmission/distribution line and using method thereof |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200338127Y1 (en) * | 2003-10-27 | 2004-01-13 | 한국전력공사 | Insulated rod of grounding tool for power plant and substation with electroscope function |
| CN102969670A (en) * | 2011-08-29 | 2013-03-13 | 株式会社永木精机 | Grounding rod remote management system |
| CN104267246A (en) * | 2014-10-22 | 2015-01-07 | 四川蓝讯宝迩电子科技有限公司 | Electrified display convenient to install |
| CN104267248A (en) * | 2014-10-22 | 2015-01-07 | 四川蓝讯宝迩电子科技有限公司 | Installation structure of outdoor equipotential high-voltage live displayer |
| CN104280595A (en) * | 2014-10-22 | 2015-01-14 | 四川蓝讯宝迩电子科技有限公司 | Rain and snow prevention high-voltage charged displayer |
| CN104280594A (en) * | 2014-10-22 | 2015-01-14 | 四川蓝讯宝迩电子科技有限公司 | Live display device preventing springs from rusting |
| KR102310204B1 (en) * | 2020-06-18 | 2021-10-08 | 한국전력공사 | Electricity detector with ground clamp control |
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