JP2000092673A - Snow-melting device for iron tower - Google Patents

Snow-melting device for iron tower

Info

Publication number
JP2000092673A
JP2000092673A JP25338898A JP25338898A JP2000092673A JP 2000092673 A JP2000092673 A JP 2000092673A JP 25338898 A JP25338898 A JP 25338898A JP 25338898 A JP25338898 A JP 25338898A JP 2000092673 A JP2000092673 A JP 2000092673A
Authority
JP
Japan
Prior art keywords
tower
snow
heating
arm
iron tower
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.)
Withdrawn
Application number
JP25338898A
Other languages
Japanese (ja)
Inventor
Takashi Irie
孝 入江
Hiroyuki Shinokubo
弘行 篠窪
Original Assignee
Ngk Insulators Ltd
日本碍子株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ngk Insulators Ltd, 日本碍子株式会社 filed Critical Ngk Insulators Ltd
Priority to JP25338898A priority Critical patent/JP2000092673A/en
Publication of JP2000092673A publication Critical patent/JP2000092673A/en
Withdrawn legal-status Critical Current

Links

Abstract

PROBLEM TO BE SOLVED: To provide a snow-melting device for an iron tower that can surely prevent a flashover accident due to covering of the transmission line iron tower with snow without increasing the size of an insulator device. SOLUTION: An electrical heating element 7 is installed at the tip of an iron arm 2 of a transmission line iron tower. An overhead ground wire 5 is insulated and a CT 8 is installed, thus taking out an electromagnetic induction current flowing through the overhead ground wire 5. The secondary current of the CT 8 is rectified by a relay device 9 and is allowed to flow to the electrical heating element 7, and the tip part of the iron tower arm 2 is heated to prevent snow-sticking. The electrical heating element 7 can also be arranged at the mounting part of the CT for a short-circuiting display and that of a weather sensor.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION
【0001】[0001]
【発明の属する技術分野】本発明は、冬季における送電
線鉄塔への冠雪に伴うフラッシオーバ事故を防止するに
適した鉄塔用融雪装置に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a snow melting apparatus for a power tower which is suitable for preventing a flashover accident caused by snow covering a power transmission tower in winter.
【0002】[0002]
【従来の技術】送電線鉄塔の碍子連と鉄塔アームとの上
に雪が積もると、その雪が部分的に溶けだした時に雪を
通じて電流が鉄塔アームに流れ、フラッシオーバ事故に
なることがあった。特に多連式の碍子連の場合に着雪量
が多くなる傾向がある。そこで従来から碍子連への冠雪
を防止するために、様々な工夫がなされてきた。
2. Description of the Related Art When snow piles on an insulator string of a transmission line tower and a tower arm, when the snow partially melts, a current flows through the tower arm through the snow, which may cause a flashover accident. In particular, in the case of a multiple insulator series, the amount of snowfall tends to increase. Therefore, various measures have conventionally been taken to prevent snow covering on the insulator series.
【0003】例えば、碍子連を縦方向二連碍子装置とす
ることにより着雪量を減少させたり、水平二連碍子装置
の場合には間隔を拡げて着雪しにくくする工夫がなされ
ている。また、碍子連と鉄塔アームとを連結する連結金
具を長くして着雪しにくくする工夫もなされている。し
かし気象条件によっては、これらの工夫を行っても碍子
連への冠雪を防止することができない場合があった。ま
た碍子連の間隔や連結金具の長さを拡大する方法は碍子
装置の大型化につながるという問題もあった。このほ
か、鉄塔アーム上に設置された閃絡表示器用CTや気象
センサ上に着雪すると、これらの機器の正常な機能が損
なわれるおそれもあった。
[0003] For example, it has been devised that the amount of snow accretion is reduced by using a pair of insulators in a vertical direction as a pair of insulators. In addition, it has been devised to lengthen a connection fitting for connecting the insulator string and the tower arm to make it difficult to snow. However, depending on the weather conditions, it was not always possible to prevent snow cover on the insulator series even with these measures. In addition, there is a problem in that the method of increasing the interval between the insulator strings and the length of the connecting bracket leads to an increase in the size of the insulator device. In addition, if snow accumulates on the flash indicator CT or weather sensor installed on the tower arm, the normal function of these devices may be impaired.
【0004】[0004]
【発明が解決しようとする課題】本発明は上記した従来
の問題点を解決し、碍子装置を大型化することなく、送
電線鉄塔への冠雪に伴うフラッシオーバ事故を確実に防
止することができる鉄塔用融雪装置を提供することを主
な目的としてなされたものである。また本発明の他の目
的は、鉄塔アーム上に設置された閃絡表示器用CTや気
象センサへの着雪による障害を防止できる鉄塔用融雪装
置を提供することである。
SUMMARY OF THE INVENTION The present invention solves the above-mentioned conventional problems, and it is possible to reliably prevent a flashover accident caused by snowfall on a power transmission tower without increasing the size of an insulator device. The main object of the present invention is to provide a snow melting device for a steel tower. It is another object of the present invention to provide a snow melting apparatus for a tower that can prevent an obstacle caused by snow on a flash indicator CT or a weather sensor installed on a tower arm.
【0005】[0005]
【課題を解決するための手段】上記の課題を解決するた
めになされた本発明は、送電線鉄塔の鉄塔アーム上に、
送電線鉄塔の架空地線に流れる電磁誘導電流を電源とし
て発熱する発熱体を配置したことを特徴とするものであ
る。
SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a power transmission tower having a tower arm,
A heating element for generating heat using an electromagnetically induced current flowing through an overhead ground wire of a transmission line tower is provided.
【0006】本発明の鉄塔用融雪装置は、架空地線に流
れる電磁誘導電流をCT等により取り出し、鉄塔アーム
上に設置された発熱体に給電して鉄塔アームの先端部等
を加温するので、仮に碍子連に冠雪しても鉄塔アーム側
に冠雪することはない。このため雪を通じて電流が鉄塔
アームに流れるフラッシオーバ事故を確実に防止するこ
とができる。また同様に、鉄塔アーム上に設置された閃
絡表示器用CTや気象センサ上への着雪を防止すること
ができる。しかも本発明の鉄塔用融雪装置は、電源用の
低圧配電線を必要としないので山間部等の低圧配電線が
敷設されていない送電線鉄塔にも設置できるうえ、架空
地線に流れる電磁誘導電流を利用するので電力消費量が
少ない利点がある。
In the snow melting apparatus for a tower according to the present invention, an electromagnetic induction current flowing through an overhead ground wire is taken out by CT or the like, and is supplied to a heating element installed on the tower arm to heat the tip of the tower arm. However, even if it snows on the insulator series, it will not snow on the tower arm side. For this reason, a flashover accident in which a current flows through the tower arm through snow can be reliably prevented. Similarly, it is possible to prevent snow on the CT for the flash indicator and the weather sensor installed on the tower arm. Moreover, since the snow melting device for a tower according to the present invention does not require a low-voltage distribution line for a power supply, it can be installed on a transmission line tower in which a low-voltage distribution line is not laid, such as in a mountainous region, and an electromagnetic induction current flowing through an overhead ground wire. There is an advantage that the power consumption is small because the power consumption is reduced.
【0007】[0007]
【発明の実施の形態】以下に図面を参照しつつ、本発明
の好ましい実施の形態を示す。図1は本発明の鉄塔用融
雪装置を備えた送電線鉄塔の全体図であり、1は鉄塔本
体、2は鉄塔アーム、3は各鉄塔アーム2の先端に取り
付けられた碍子連、4はこの碍子連3により絶縁支持さ
れた送電線、5は鉄塔本体1の上端の架空地線である。
この実施形態では、一対の架空地線5の片側が小型の碍
子6により鉄塔アーム2に対して絶縁されている。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an overall view of a power transmission tower provided with a snow melting device for a tower according to the present invention, wherein 1 is a tower main body, 2 is a tower arm, 3 is an insulator string attached to the tip of each tower arm 2, and 4 is Transmission lines 5 insulated and supported by the insulator string 3 are overhead ground wires at the upper end of the tower main body 1.
In this embodiment, one side of a pair of overhead ground wires 5 is insulated from the tower arm 2 by a small insulator 6.
【0008】図2に示されるように、鉄塔アーム2の先
端部の碍子連取付け部には、適当数の発熱体7が設置さ
れている。発熱体7は通電により赤外線を発生する能力
を持つものであれば任意の形式を選択できるが、屋外に
設置されることを考慮すると耐候性、耐久性に優れたも
のであることが好ましい。そこでこの実施形態では、ニ
クロム線等の抵抗発熱線をセラミックの内部に埋め込ん
だセラミックモールド型の発熱体7を、多数個直列に接
続して使用した。このような発熱体7はインフラスタイ
ンの商標名で本出願人が販売している。
As shown in FIG. 2, an appropriate number of heating elements 7 are installed at the insulator connecting portion at the tip of the tower arm 2. The heating element 7 may be of any type as long as it has a capability of generating infrared rays when energized. However, in consideration of being installed outdoors, it is preferable that the heating element 7 has excellent weather resistance and durability. Therefore, in this embodiment, a large number of ceramic mold type heating elements 7 in which resistance heating wires such as nichrome wires are embedded in the ceramic are used in series. Such a heating element 7 is sold by the present applicant under the trade name of Infrastein.
【0009】図3はこれらの発熱体7への給電系統の説
明図である。図示のように、絶縁された側の架空地線5
にはCT8が設置されている。絶縁された架空地線5に
は近接する送電線4を流れる交流電流によって常に電磁
誘導電流が流れているため、その周囲にCT8を設置す
るとCT8に二次電流が流れる。9は中継装置であり、
二次電流の整流を行う。また図示のように複数のCT8
が設置されている場合には、各CT8の二次電流を合成
する機能も有する。中継装置9から出力された電力は電
圧制御装置10により電圧制御されたうえで、前記の発
熱体7に給電される。なお、充分な大きさの誘導電流が
得られる場合にはCT8を省略し、架空地線から直接電
圧制御装置10へ結線しても良い。
FIG. 3 is an explanatory diagram of a power supply system to these heating elements 7. As shown, overhead ground wire 5 on the insulated side
Is provided with CT8. Since the electromagnetically induced current always flows through the insulated ground wire 5 due to the alternating current flowing through the adjacent power line 4, when the CT 8 is installed around the CT, a secondary current flows through the CT 8. 9 is a relay device,
Rectifies secondary current. Also, as shown in FIG.
Is installed, it also has a function of synthesizing the secondary current of each CT8. The power output from the relay device 9 is voltage-controlled by the voltage control device 10 and then supplied to the heating element 7. If a sufficiently large induced current can be obtained, the CT 8 may be omitted and the voltage control device 10 may be directly connected from the overhead ground wire.
【0010】図1に示すように、中継装置9及び電圧制
御装置10は鉄塔本体1に配置される。CT8は片側の
架空地線5に近い位置に配置されるが、発熱体7は両側
の各鉄塔アーム2の先端に配置されるため、ケーブル1
1によりこれらの各機器を接続するものとする。
As shown in FIG. 1, the relay device 9 and the voltage control device 10 are arranged in the tower body 1. The CT 8 is arranged at a position close to the overhead ground wire 5 on one side, but the heating element 7 is arranged at the tip of each of the tower arms 2 on both sides.
1, each of these devices is connected.
【0011】このように構成された本発明の鉄塔用融雪
装置は、架空地線5に流れる電磁誘導電流をCT8によ
り取り出し、発熱体7に給電して鉄塔アーム2の先端部
の碍子連取付け部を加温することができるので、冬季に
碍子連3に冠雪した場合にも雪は鉄塔アーム2側では溶
けてしまい、鉄塔アーム2と碍子連3との間でつながる
ように冠雪することはない。また発熱体7から放射され
る赤外線により、碍子連3の冠雪も減少する。このた
め、溶けだした雪を通じて電流が碍子連3から鉄塔アー
ム2に流れるフラッシオーバ事故を確実に防止すること
ができる。
In the snow melting apparatus for a steel tower according to the present invention thus constructed, the electromagnetic induction current flowing through the overhead ground wire 5 is taken out by the CT 8 and supplied to the heating element 7 to connect the insulator connecting portion at the tip end of the tower arm 2. Can be heated, so that even if snow falls on the insulator string 3 in winter, the snow melts on the tower arm 2 side, and the snow is covered so that it is connected between the tower arm 2 and the insulator string 3. There is no. In addition, due to the infrared rays radiated from the heating element 7, snow coverage of the insulator string 3 is reduced. Therefore, it is possible to reliably prevent a flashover accident in which current flows from the insulator string 3 to the tower arm 2 through the melted snow.
【0012】図4に示す他の実施形態においては、発熱
体7が鉄塔アーム2の先端部の閃絡表示器用CT12の
取付け部に設置されている。また鉄塔アーム2には風向
風速センサ13、日照センサ14、日射センサ15等の
各種の気象センサが設置されていることがあるが、これ
らの気象センサ取付け部にも発熱体7を配置して、これ
らの機器を積雪による誤動作や停止から保護することが
できる。
In another embodiment shown in FIG. 4, the heating element 7 is installed at the tip of the tower arm 2 at the mounting portion of the flash indicator CT 12. In addition, various weather sensors such as a wind direction sensor 13, a sunshine sensor 14, and a solar radiation sensor 15 may be installed in the tower arm 2. These devices can be protected from malfunction or stoppage due to snow.
【0013】上記した本発明の鉄塔用融雪装置は、架空
地線5に流れる電磁誘導電流を利用するため、電源用の
低圧配電線を必要としない。このため、山間部等の低圧
配電線が敷設されていない送電線鉄塔にも設置すること
ができる。しかも本発明の鉄塔用融雪装置は、送電線4
を流れる電流を利用するのではなく、架空地線5に流れ
る電磁誘導電流を利用するので、電力消費量が少ない利
点がある。なお、夏期には中継装置9または電圧制御装
置10に内蔵されるスイッチを切断し、電力消費を減少
させることもできる。
The above-described snow melting apparatus for a steel tower according to the present invention utilizes the electromagnetic induction current flowing through the overhead ground wire 5, and therefore does not require a low-voltage power distribution line for a power supply. For this reason, it can also be installed in transmission line towers where low-voltage distribution lines are not laid, such as in mountainous areas. In addition, the snow melting apparatus for a steel tower according to the present invention has a transmission line 4
Instead of using the current flowing through the ground wire, the electromagnetic induction current flowing through the overhead ground wire 5 is used, so that there is an advantage that the power consumption is small. In summer, a switch built in the relay device 9 or the voltage control device 10 may be turned off to reduce power consumption.
【0014】[0014]
【発明の効果】以上に説明したように、本発明の鉄塔用
融雪装置は従来のように碍子装置を大型化する必要もな
く、少ない消費電力で送電線鉄塔への冠雪に伴うフラッ
シオーバ事故や、気象センサ等の機器の誤動作等を確実
に防止することができる利点がある。
As described above, the snow melting apparatus for a steel tower according to the present invention does not require the insulator apparatus to be large in size as in the prior art, and consumes less power and causes a flashover accident caused by snow covering the power transmission tower. In addition, there is an advantage that malfunction of a device such as a weather sensor can be reliably prevented.
【図面の簡単な説明】[Brief description of the drawings]
【図1】本発明の鉄塔用融雪装置を備えた送電線鉄塔の
全体図である。
FIG. 1 is an overall view of a power transmission tower provided with a snow melting device for a tower according to the present invention.
【図2】鉄塔アームの先端部の拡大図である。FIG. 2 is an enlarged view of a tip of a tower arm.
【図3】発熱体への給電系統図である。FIG. 3 is a diagram of a power supply system to a heating element.
【図4】他の実施形態を示す鉄塔アームの先端部の拡大
図である。
FIG. 4 is an enlarged view of a distal end portion of a tower arm according to another embodiment.
【符号の説明】[Explanation of symbols]
1 鉄塔本体、2 鉄塔アーム、3 碍子連、4 送電
線、5 架空地線、6小型の碍子、7 発熱体、8 C
T、9 中継装置、10 電圧制御装置、11 ケーブ
ル、12 閃絡表示器用CT、13 風向風速センサ、
14 日照センサ、15 日射センサ
1 Tower body, 2 Tower arm, 3 insulators, 4 Transmission line, 5 Overhead ground wire, 6 Small insulator, 7 Heating element, 8 C
T, 9 relay device, 10 voltage control device, 11 cable, 12 CT for flash indicator, 13 wind direction and wind speed sensor,
14 sunshine sensor, 15 sunshine sensor

Claims (5)

    【特許請求の範囲】[Claims]
  1. 【請求項1】 送電線鉄塔の鉄塔アーム上に、送電線鉄
    塔の架空地線に流れる電磁誘導電流を電源として発熱す
    る発熱体を配置したことを特徴とする鉄塔用融雪装置。
    1. A snow melting apparatus for a power tower, wherein a heating element that generates heat using an electromagnetic induction current flowing through an overhead ground wire of the power transmission tower is disposed on a power tower arm of the power transmission tower.
  2. 【請求項2】 発熱体がセラミックモールドされたもの
    である請求項1に記載の鉄塔用融雪装置。
    2. The snow melting apparatus for a steel tower according to claim 1, wherein the heating element is ceramic-molded.
  3. 【請求項3】 発熱体が鉄塔アームの先端部の碍子連取
    付け部に設置されたものである請求項1又は2に記載の
    鉄塔用融雪装置。
    3. The snow melting apparatus for a steel tower according to claim 1, wherein the heating element is installed at an insulator connecting portion at a tip end of the steel tower arm.
  4. 【請求項4】 発熱体が鉄塔アームの先端部の閃絡表示
    器用CT取付け部に設置されたものである請求項1又は
    2に記載の鉄塔用融雪装置。
    4. The snow melting apparatus for a steel tower according to claim 1, wherein the heating element is installed at a CT mounting part for a flash indicator at a tip end of the tower arm.
  5. 【請求項5】 発熱体が鉄塔アームの気象センサ取付け
    部に設置されたものである請求項1又は2に記載の鉄塔
    用融雪装置。
    5. The snow melting apparatus for a steel tower according to claim 1, wherein the heating element is installed in a weather sensor mounting portion of the steel tower arm.
JP25338898A 1998-09-08 1998-09-08 Snow-melting device for iron tower Withdrawn JP2000092673A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP25338898A JP2000092673A (en) 1998-09-08 1998-09-08 Snow-melting device for iron tower

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP25338898A JP2000092673A (en) 1998-09-08 1998-09-08 Snow-melting device for iron tower

Publications (1)

Publication Number Publication Date
JP2000092673A true JP2000092673A (en) 2000-03-31

Family

ID=17250683

Family Applications (1)

Application Number Title Priority Date Filing Date
JP25338898A Withdrawn JP2000092673A (en) 1998-09-08 1998-09-08 Snow-melting device for iron tower

Country Status (1)

Country Link
JP (1) JP2000092673A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101807784A (en) * 2010-04-01 2010-08-18 扬州东方吊架有限公司 Solar ice coating resistant device of overhead transmission line
CN102493699A (en) * 2008-02-04 2012-06-13 尹学军 Anti-ice condensation cable and auxiliary facility
CN103696608A (en) * 2013-12-03 2014-04-02 国家电网公司 Anti-rain freezing high-voltage line iron tower
CN106300203A (en) * 2016-09-10 2017-01-04 芜湖市旭辉电工新材料有限责任公司 A kind of self-heated ice-melt photovoltaic microgrid system
CN106329448A (en) * 2016-09-09 2017-01-11 芜湖市旭辉电工新材料有限责任公司 Photovoltaic microgrid roof snow melting heat tracing band system
CN106384989A (en) * 2016-11-18 2017-02-08 中国南方电网有限责任公司超高压输电公司检修试验中心 Device and method for performing DC ice melting on overhead ground wire of power transmission line
CN106451293A (en) * 2016-09-09 2017-02-22 芜湖市旭辉电工新材料有限责任公司 Ice-melting tracing system for high-voltage transmission line
CN109616978A (en) * 2018-11-08 2019-04-12 南安市尚赢机械科技有限公司 A kind of high-voltage wire tower device for preventing ice and snow that segmentation is melted

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102493699A (en) * 2008-02-04 2012-06-13 尹学军 Anti-ice condensation cable and auxiliary facility
CN102493699B (en) * 2008-02-04 2013-12-25 尹学军 Anti-ice condensation cable and auxiliary facility
CN101807784A (en) * 2010-04-01 2010-08-18 扬州东方吊架有限公司 Solar ice coating resistant device of overhead transmission line
CN103696608A (en) * 2013-12-03 2014-04-02 国家电网公司 Anti-rain freezing high-voltage line iron tower
CN103696608B (en) * 2013-12-03 2016-04-27 国家电网公司 One is rainproof freezes formula high-tension line steel tower
CN106329448A (en) * 2016-09-09 2017-01-11 芜湖市旭辉电工新材料有限责任公司 Photovoltaic microgrid roof snow melting heat tracing band system
CN106451293A (en) * 2016-09-09 2017-02-22 芜湖市旭辉电工新材料有限责任公司 Ice-melting tracing system for high-voltage transmission line
CN106300203A (en) * 2016-09-10 2017-01-04 芜湖市旭辉电工新材料有限责任公司 A kind of self-heated ice-melt photovoltaic microgrid system
CN106384989A (en) * 2016-11-18 2017-02-08 中国南方电网有限责任公司超高压输电公司检修试验中心 Device and method for performing DC ice melting on overhead ground wire of power transmission line
CN109616978A (en) * 2018-11-08 2019-04-12 南安市尚赢机械科技有限公司 A kind of high-voltage wire tower device for preventing ice and snow that segmentation is melted

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