JPH06204011A - Arrestor - Google Patents

Arrestor

Info

Publication number
JPH06204011A
JPH06204011A JP34724092A JP34724092A JPH06204011A JP H06204011 A JPH06204011 A JP H06204011A JP 34724092 A JP34724092 A JP 34724092A JP 34724092 A JP34724092 A JP 34724092A JP H06204011 A JPH06204011 A JP H06204011A
Authority
JP
Japan
Prior art keywords
lightning
arrestor
surge current
switch element
current
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.)
Pending
Application number
JP34724092A
Other languages
Japanese (ja)
Inventor
Takashi Ohashi
隆 大橋
Shinji Yoshida
慎司 吉田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NGK Insulators Ltd
Original Assignee
NGK Insulators Ltd
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 filed Critical NGK Insulators Ltd
Priority to JP34724092A priority Critical patent/JPH06204011A/en
Publication of JPH06204011A publication Critical patent/JPH06204011A/en
Pending legal-status Critical Current

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  • Thermistors And Varistors (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

PURPOSE:To prevent the breakage of an arrestor element and a switch element by connecting the switch element which operates by an over voltage with the arrestor element in series and connecting an inductive reactance with the switch element in series so as to be in parallel with the arrestor element. CONSTITUTION:An arrestor 11 is constituted of a laminated arrestor element 12, a coil 13 connected in parallel with the arrestor element 12 and a switch element 14 which is connected with the grounding sides of the arrestor element 12 and the coil 13 in series. The arrestor element 12 is composed of a resistor whose major component is metal oxide with non-linear voltage-current characteristics. The switch element 14 is composed of bidirectional thyristors 14a and 14b. When lightning strikes a power line and a lightening surge flows in the arrestor element 12, one of the gates of the thyristors 14a and 14b opens regardless of the polarity of the lightning surge current. Thus, the arrestor efficiently operates for lightning surge current in both high and low frequency areas and grounding accidents are prevented.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、送電線や変電所におい
て雷撃から電力用機器を保護するために使用される避雷
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 lightning arrester used in a power transmission line or a substation to protect electric power equipment from lightning strikes.

【0002】[0002]

【従来の技術】この種の避雷装置では酸化亜鉛等の金属
酸化物を主成分とする非直線性の電圧−電流特性を有す
る抵抗体からなる避雷素子が用いられる。この避雷素子
は、雷サージ電流を大地に放電し、その後に生じる続流
電流を抑制遮断して地絡事故による停電を防止する。し
かし、避雷素子の設計耐量を越える大きな雷サージ電流
が流れた場合には、避雷素子が破損して地絡事故が発生
する。
2. Description of the Related Art In a lightning arrester of this type, a lightning arrester composed of a resistor having a non-linear voltage-current characteristic containing a metal oxide such as zinc oxide as a main component is used. This lightning protection device discharges a lightning surge current to the ground and suppresses and interrupts a subsequent current that occurs thereafter to prevent a power failure due to a ground fault. However, when a large lightning surge current that exceeds the design capability of the lightning protection element flows, the lightning protection element is damaged and a ground fault occurs.

【0003】実開昭55−126603号公報には、避
雷素子の設計耐量を越える大きな雷サージ電流が流れた
場合にも避雷素子の破損を防止し得る避雷装置が開示さ
れている。この従来装置を図6に示す。非直線性抵抗体
からなる避雷素子1の接地側には直線性抵抗体2が接続
されている。直線性抵抗体2の高圧部分をゲート信号と
するサイリスタ3,4が避雷素子1の一部及び直線性抵
抗体2に対して並列接続されている。
Japanese Utility Model Laid-Open No. 55-126603 discloses a lightning protection device capable of preventing damage to the lightning protection element even when a large lightning surge current exceeding the designed withstand capacity of the lightning protection element flows. This conventional device is shown in FIG. A linear resistance body 2 is connected to the ground side of the lightning arrester element 1 made of a non-linear resistance body. Thyristors 3 and 4 that use the high voltage portion of the linear resistor 2 as a gate signal are connected in parallel to a part of the lightning arrester element 1 and the linear resistor 2.

【0004】図5に曲線Aで示すような波高値の大きな
雷サージ電流が流れると、直線性抵抗体2の電圧降下が
大きくなり、サイリスタ3,4のゲートが開く。サイリ
スタ3,4のゲートが開くことにより雷サージ電流がサ
イリスタ3,4側に分流する。この分流により避雷素子
1における責務が軽減し、避雷素子1の破損が防止され
る。
When a lightning surge current having a large peak value as shown by a curve A in FIG. 5 flows, the voltage drop of the linear resistor 2 becomes large and the gates of the thyristors 3 and 4 open. When the gates of the thyristors 3 and 4 are opened, the lightning surge current is shunted to the thyristors 3 and 4 side. This shunt reduces the burden on the lightning protection element 1 and prevents damage to the lightning protection element 1.

【0005】[0005]

【発明が解決しようとする課題】しかし、この従来装置
では図5に曲線Bで示すような雷サージ電流が流れた場
合には有効ではない。曲線Bで示すような雷サージ電流
は、波高値はそれほど大きくはないが、継続時間が長
く、エネルギーが大きい。このような雷サージ電流が直
線性抵抗体2に流れてもその電圧降下は大きくならず、
サイリスタ3,4のゲートが開かない。そのため、図5
の曲線Bで示すような雷サージ電流に対しては従来の避
雷装置は有効に動作せず、避雷素子1が破損して地絡事
故を招く。
However, this conventional device is not effective when a lightning surge current as shown by the curve B in FIG. 5 flows. The lightning surge current as shown by the curve B has a long peak time and a large energy, although its peak value is not so large. Even if such a lightning surge current flows through the linear resistor 2, the voltage drop does not increase,
The gates of thyristors 3 and 4 do not open. Therefore,
The conventional lightning arrester does not operate effectively against the lightning surge current as indicated by the curve B, and the lightning arrester element 1 is damaged, resulting in a ground fault.

【0006】本発明は、波高値の大きい雷サージ電流及
び電流値は小さいがエネルギーの大きい雷サージ電流の
いずれに対しても有効に動作して避雷素子の破損及び地
絡事故を防止し得る避雷装置を提供することを目的とす
る。
The present invention is a lightning arrester capable of effectively operating against both a lightning surge current having a large peak value and a lightning surge current having a small current value but a large energy to prevent damage to a lightning arrestor and a ground fault. The purpose is to provide a device.

【0007】[0007]

【課題を解決するための手段】そのために第1の発明で
は、金属酸化物を主成分とする非直線性の電圧−電流特
性を有する抵抗体からなる避雷素子を備え、過電圧によ
って動作するスイッチ素子を前記避雷素子に直列接続
し、誘導性リアクタンスを前記避雷素子に対して並列関
係となるように前記スイッチ素子に直列接続して避雷装
置を構成した。
To this end, in the first invention, a switch element which is provided with a lightning arrester composed of a resistor containing a metal oxide as a main component and having a non-linear voltage-current characteristic, and which operates by an overvoltage is provided. Is connected in series to the lightning protection device, and the inductive reactance is connected in series to the switching device so that the inductive reactance is in parallel with the lightning protection device to form a lightning protection device.

【0008】第2の発明では、第1の発明のスイッチ素
子に容量性リアクタンスを並列接続して避雷装置を構成
した。
In the second invention, a lightning arrester is constructed by connecting a capacitive reactance in parallel with the switch element of the first invention.

【0009】[0009]

【作用】第1の発明の誘導性リアクタンスとしては例え
ばコイルが用いられる。コイルのインピーダンスは電流
の周波数に比例する。図5の曲線A,Bで示すような立
ち上がり領域の急峻な雷サージ電流は高周波数電流と同
じであり、コイルはこのような雷サージ電流の高周波数
領域に対して大きなインピーダンスを持つ。従って、雷
サージ電流の高周波数領域ではほとんど避雷素子側を流
れ、避雷素子が雷サージ電流の高周波数領域に対する責
務を処理する。
A coil is used as the inductive reactance of the first invention. The impedance of the coil is proportional to the frequency of the current. The steep lightning surge current in the rising region as shown by the curves A and B in FIG. 5 is the same as the high frequency current, and the coil has a large impedance in the high frequency region of such lightning surge current. Therefore, in the high frequency region of the lightning surge current, it almost flows through the lightning protection element side, and the lightning protection device handles the responsibility for the high frequency region of the lightning surge current.

【0010】図5の曲線A,Bの波形変化の少ない領域
は低周波数電流と同じであり、コイルはこのような雷サ
ージ電流の低周波数領域に対して小さいインピーダンス
を持つ。従って、雷サージ電流の低周波数領域はほとん
どコイル側を流れ、スイッチ素子が雷サージ電流の低周
波数領域に対する責務を処理する。
The region of the curves A and B in FIG. 5 where the waveform change is small is the same as the low frequency current, and the coil has a small impedance in the low frequency region of such lightning surge current. Therefore, the low frequency region of the lightning surge current almost flows through the coil side, and the switch element handles the responsibility for the low frequency region of the lightning surge current.

【0011】第2の発明の容量性リアクタンスとしては
例えばコンデンサが用いられる。コンデンサのインピー
ダンスは電流の周波数に逆比例する。即ち、コンデンサ
は雷サージ電流の高周波数領域に対して小さいインピー
ダンスを持ち、雷サージ電流の低周波数領域に対して大
きなインピーダンスを持つ。従って、雷サージ電流の高
周波数領域はほとんど避雷素子及びコンデンサを流れ、
雷サージ電流の低周波数領域はほとんどコイル及びスイ
ッチ素子を流れる。
A capacitor, for example, is used as the capacitive reactance of the second invention. The impedance of the capacitor is inversely proportional to the frequency of the current. That is, the capacitor has a small impedance in the high frequency region of the lightning surge current and a large impedance in the low frequency region of the lightning surge current. Therefore, in the high frequency region of the lightning surge current, most of the lightning surge element and capacitor flow,
Most of the low frequency region of the lightning surge current flows through the coil and the switch element.

【0012】金属酸化物からなる避雷素子は波高値の高
い急峻な雷サージ電流に対して強く、継続時間が長くて
エネルギーの大きい雷サージ電流に対しては弱い。スイ
ッチ素子には例えばサイリスタ、トライアックが用いら
れる。この種のスイッチ素子は継続時間が長くてエネル
ギーの大きい雷サージ電流に対して強く、波高値の高い
急峻な雷サージ電流に対して弱い。第1の発明及び第2
の発明の避雷装置は避雷素子及びスイッチ素子の各特性
を利用して雷サージ電流を処理しており、避雷素子及び
スイッチ素子を破損することなく雷サージ電流が処理さ
れる。
The lightning arrester made of a metal oxide is strong against a steep lightning surge current having a high peak value and weak against a lightning surge current having a long duration and large energy. For example, a thyristor or triac is used as the switch element. This type of switching element is strong against a lightning surge current having a long duration and large energy, and is weak against a steep lightning surge current having a high peak value. 1st invention and 2nd
In the lightning protection device of the invention described above, lightning surge current is processed by utilizing the characteristics of the lightning protection device and the switching device, and the lightning surge current is processed without damaging the lightning protection device and the switching device.

【0013】[0013]

【実施例】以下、第1の発明を具体化した一実施例を図
1及び図2に基づいて説明する。図1は送電線の鉄塔等
に装設される避雷装置11を表す。避雷装置11は、積
層された避雷素子12と、避雷素子12に対して並列接
続されたコイル13と、避雷素子12及びコイル13の
接地側に対してそれぞれ直列接続されたスイッチ素子1
4とから構成されている。避雷素子12は金属酸化物
(例えば酸化亜鉛)を主成分とする非直線性の電圧−電
流特性を有する抵抗体からなる。図2に示すようにスイ
ッチ素子14は双方向のサイリスタ14a,14bから
なる。サイリスタ14a,14bのゲート端子は過電圧
印加時にゲート信号を出力する点弧回路に接続されてい
る。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment embodying the first invention will be described below with reference to FIGS. FIG. 1 shows a lightning arrester 11 installed on a steel tower or the like of a power transmission line. The lightning protection device 11 includes a stacked lightning protection element 12, a coil 13 connected in parallel to the lightning protection element 12, and a switching element 1 connected in series to the lightning protection element 12 and the ground side of the coil 13.
4 and. The lightning protection element 12 is composed of a resistor having a non-linear voltage-current characteristic, which is mainly composed of a metal oxide (eg, zinc oxide). As shown in FIG. 2, the switch element 14 includes bidirectional thyristors 14a and 14b. The gate terminals of the thyristors 14a and 14b are connected to an ignition circuit that outputs a gate signal when an overvoltage is applied.

【0014】送電線に雷撃が侵入して避雷素子12に雷
サージが流れると、サイリスタ14a又は14bのゲー
トが雷サージの過電圧によって開く。サイリスタ14
a,14bは双方向であるため、雷サージ電流の極性に
関わらずいずれか一方のサイリスタのゲートが開く。
When a lightning strike enters the power transmission line and a lightning surge flows through the lightning protection element 12, the gate of the thyristor 14a or 14b opens due to the overvoltage of the lightning surge. Thyristor 14
Since a and 14b are bidirectional, the gate of either one of the thyristors opens regardless of the polarity of the lightning surge current.

【0015】図5の曲線A及び曲線Bの領域E1 のよう
に、立ち上がり領域が急峻な雷サージ電流が流れた場
合、この領域E1 は高い周波数の電流と同じである。電
流の周波数をf、コイル13のインダクタンスをLとす
ると、コイル13のインピーダンスZ1 は2πfLで表
される。即ち、領域E1 のような急峻な雷サージ電流に
対してはコイル13のインピーダンスZ1 は大きくな
る。従って、領域E1 の雷サージ電流の高周波数領域は
ほとんど避雷素子12側を流れ、避雷素子12が雷サー
ジ電流の高周波数領域に対する責務を処理する。この種
の避雷素子12は急峻かつ波高値の高い電流に対する耐
量が大きく、曲線A,Bの立ち上がり領域で示すような
波高値の高い急峻な雷サージ電流の責務に適している。
When a lightning surge current having a steep rising region flows like the region E 1 of the curves A and B in FIG. 5, this region E 1 is the same as the high frequency current. When the frequency of the current is f and the inductance of the coil 13 is L, the impedance Z 1 of the coil 13 is represented by 2πfL. That is, the impedance Z 1 of the coil 13 becomes large for a steep lightning surge current such as in the region E 1 . Therefore, the high frequency region of the lightning surge current in the region E 1 almost flows through the lightning protection element 12 side, and the lightning protection device 12 handles the responsibility for the high frequency region of the lightning surge current. This type of lightning arrester element 12 has a large withstand capability against a steep current having a high peak value, and is suitable for the duty of a steep lightning surge current having a high peak value as shown by the rising regions of the curves A and B.

【0016】図5の曲線Bの平坦領域E2 で示すよう
に、波高値は低いが、継続時間が長くてエネルギーが大
きい雷サージ電流が流れた場合、この領域E2 は直流に
近い低周波数の電流と同じである。即ち、領域E2 に対
するコイル13のインピーダンスは小さく、領域E2
雷サージ電流はほとんどコイル13側を流れる。従っ
て、スイッチ素子14が領域E2 の雷サージ電流に対す
る責務を処理する。この種のスイッチ素子14は急峻で
はないが継続時間が長くてエネルギーの大きい電流に対
する耐量が大きく、曲線Bの領域E2 で示すような急峻
ではないが継続時間が長くてエネルギーの大きい雷サー
ジ電流の責務に適している。
As shown by the flat region E 2 of the curve B in FIG. 5, when a lightning surge current having a low crest value but a long duration and large energy flows, this region E 2 has a low frequency close to DC. Is the same as the current. That is, the impedance of the coil 13 with respect to the area E 2 is small, and most of the lightning surge current in the area E 2 flows on the coil 13 side. Therefore, the switch element 14 handles the responsibility for the lightning surge current in the area E 2 . This type of switching element 14 is not steep but has a long duration and a large resistance to a current having a large energy, and is not steep as shown by a region E 2 of the curve B, but is not steep but has a long duration and a large energy, which is a lightning surge current. Suitable for the responsibilities of.

【0017】避雷素子12は急峻ではないが継続時間が
長くてエネルギーの大きい電流に対する耐量が小さく、
スイッチ素子14は波高値の高い急峻な雷サージ電流に
対する耐量が小さい。避雷素子12及びスイッチ素子1
4を用いた本発明の避雷装置11は、コイル13の電流
周波数に対するインピーダンス特性を利用して電流に対
する避雷素子12及びスイッチ素子14の耐量特性を使
い分けるものである。このような各素子12,14の耐
量特性の使い分けによって避雷素子12及びスイッチ素
子14の破損及び地絡事故を防止することができる。
The lightning protection element 12 is not steep, but has a long duration and a small withstand capability against a current having a large energy.
The switch element 14 has a small resistance to a steep lightning surge current having a high peak value. Lightning element 12 and switch element 1
The lightning arrester 11 of the present invention using No. 4 utilizes the impedance characteristic of the coil 13 with respect to the current frequency and selectively uses the withstand characteristics of the lightning arrester element 12 and the switch element 14 with respect to the current. It is possible to prevent damage to the lightning arrester element 12 and the switch element 14 and a ground fault by properly using the withstand voltage characteristics of the elements 12 and 14.

【0018】次に第2の発明を具体化した一実施例を図
3及び図4に基づいて説明する。この実施例の避雷装置
15ではコンデンサ16がスイッチ素子13に対して並
列接続されている点のみが前記実施例と異なる。コンデ
ンサ16の静電容量をCとすると、コンデンサ16のイ
ンピーダンスZ2 は1/2πfCである。図5の領域E
1 ではコンデンサ16のインピーダンスZ2 はコイル1
3のインピーダンスZ1 に比して微小であり、領域E2
ではコイル13のインピーダンスZ1 はコンデンサ16
のインピーダンスZ2 に比して微小である。従って、領
域E1 における雷サージ電流はほとんど避雷素子12及
びコンデンサ16を流れ、避雷素子12が領域E1 の雷
サージ電流に対する責務を処理する。領域E2 における
雷サージ電流はほとんどコイル13及びスイッチ素子1
4を流れ、スイッチ素子14が領域E2 の雷サージ電流
に対する責務を処理する。即ち、この実施例の避雷装置
15では避雷素子12及びスイッチ素子14の耐量特性
を利用した責務使い分けが一層確実となり、避雷素子1
2及びスイッチ素子14の破損及び地絡事故の防止効果
が一層高まる。
Next, an embodiment embodying the second invention will be described with reference to FIGS. 3 and 4. The lightning arrester 15 of this embodiment is different from the previous embodiment only in that a capacitor 16 is connected in parallel to the switch element 13. When the capacitance of the capacitor 16 is C, the impedance Z 2 of the capacitor 16 is 1 / 2πfC. Area E in FIG.
In 1 the impedance Z 2 of capacitor 16 is coil 1
The impedance is smaller than the impedance Z 1 of 3 and the area E 2
Then the impedance Z 1 of the coil 13 is the capacitor 16
Impedance Z 2 is very small. Therefore, most of the lightning surge current in the area E 1 flows through the lightning protection element 12 and the capacitor 16, and the lightning protection element 12 handles the responsibility for the lightning surge current in the area E 1 . Most of the lightning surge current in the region E 2 is the coil 13 and the switch element 1.
4 and the switching element 14 handles the responsibility for the lightning surge current in the area E 2 . That is, in the lightning protection device 15 of this embodiment, the responsibility and use of the lightning protection element 12 and the switch element 14 using the withstand voltage characteristics become more reliable, and the lightning protection element 1
2 and the effect of preventing damage to the switch element 14 and ground fault are further enhanced.

【0019】本発明は勿論前記実施例にのみ限定される
ものではなく、例えばスイッチ素子としてトライアック
を用いることもできる。又、周波数が増大するとインピ
ーダンスが増大する周波数−インピーダンス特性を有す
る誘導性りアクタンスであればコイル以外のものでもよ
い。この場合、周波数が大きくなるとインピーダンスが
急激に増大するような周波数−インピーダンス特性のも
のが望ましい。
The present invention is, of course, not limited to the above-mentioned embodiment, and for example, a triac can be used as the switch element. In addition, as long as the frequency is increased, the impedance is increased, so long as it is an inductive inductance having a frequency-impedance characteristic, it may be something other than a coil. In this case, it is desirable that the frequency-impedance characteristic be such that the impedance rapidly increases as the frequency increases.

【0020】[0020]

【発明の効果】以上詳述したように第1の発明の避雷装
置は、金属酸化物を主成分とする非直線性の電圧−電流
特性を有する抵抗体からなる避雷素子を備え、過電圧に
よって動作するスイッチ素子を前記避雷素子に直列接続
し、誘導性リアクタンスを前記避雷素子に対して並列関
係となるように前記スイッチ素子に直列接続して避雷装
置を構成したので、避雷素子が雷サージ電流の高周波数
領域に対する責務を処理すると共に、スイッチ素子が雷
サージ電流の低周波数領域に対する責務を処理し、避雷
素子及びスイッチ素子の破損を防止して地絡事故を防止
し得るという優れた効果を奏する。
As described in detail above, the lightning arrester of the first invention is equipped with a lightning arrester composed of a resistor having a non-linear voltage-current characteristic containing metal oxide as a main component, and operated by an overvoltage. Since the switch element is connected in series to the lightning protection element, and the inductive reactance is connected in series to the switch element so as to have a parallel relationship with the lightning protection element, the lightning protection device is configured. In addition to handling the responsibility for the high frequency region, the switching element also handles the responsibility for the low frequency region of the lightning surge current, and it is possible to prevent damage to the lightning arrester element and the switching element and to prevent a ground fault accident. .

【0021】第2の発明の避雷装置は、第1の発明のス
イッチ素子に容量性リアクタンスを並列接続したので、
避雷素子及びスイッチ素子の破損を防止して地絡事故を
防止する効果が一層高まる。
Since the lightning arrester of the second invention has the capacitive reactance connected in parallel to the switch element of the first invention,
The effect of preventing damage to the lightning arrester element and the switch element and preventing a ground fault is further enhanced.

【図面の簡単な説明】[Brief description of drawings]

【図1】 第1の発明を具体化した実施例の避雷装置を
示すブロック図である。
FIG. 1 is a block diagram showing a lightning arrester of an embodiment embodying the first invention.

【図2】 避雷装置の詳細を示す回路図である。FIG. 2 is a circuit diagram showing details of a lightning arrester.

【図3】 第2の発明を具体化した実施例の避雷装置を
示すブロック図である。
FIG. 3 is a block diagram showing a lightning arrester of an embodiment embodying the second invention.

【図4】 避雷装置の詳細を示す回路図である。FIG. 4 is a circuit diagram showing details of a lightning arrester.

【図5】 雷サージ電流の種類を示すグラフである。FIG. 5 is a graph showing the types of lightning surge currents.

【図6】 従来の避雷装置を示す回路図である。FIG. 6 is a circuit diagram showing a conventional lightning protection device.

【符号の説明】[Explanation of symbols]

11…避雷装置、12…避雷素子、13…誘導性リアク
タンスとしてのコイル、14…スイッチ素子、15…避
雷装置、16…容量性リアクタンスとしてのコンデン
サ。
11 ... Lightning arrester, 12 ... Lightning arrester, 13 ... Coil as inductive reactance, 14 ... Switch element, 15 ... Lightning arrester, 16 ... Capacitor as capacitive reactance.

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】金属酸化物を主成分とする非直線性の電圧
−電流特性を有する抵抗体からなる避雷素子を備え、過
電圧によって動作するスイッチ素子を前記避雷素子に直
列接続し、誘導性リアクタンスを前記避雷素子に対して
並列関係となるように前記スイッチ素子に直列接続した
避雷装置。
1. An inductive reactance, comprising a lightning protection element comprising a resistor having a non-linear voltage-current characteristic whose main component is a metal oxide, and a switching element which operates by overvoltage is connected in series to the lightning protection element. A lightning arrester in which a switch is connected in series to the switch element so as to be in a parallel relationship with the lightning arrester.
【請求項2】前記スイッチ素子に容量性リアクタンスを
並列接続した請求項1に記載の避雷装置。
2. The lightning arrester according to claim 1, wherein a capacitive reactance is connected in parallel to the switch element.
JP34724092A 1992-12-25 1992-12-25 Arrestor Pending JPH06204011A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP34724092A JPH06204011A (en) 1992-12-25 1992-12-25 Arrestor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP34724092A JPH06204011A (en) 1992-12-25 1992-12-25 Arrestor

Publications (1)

Publication Number Publication Date
JPH06204011A true JPH06204011A (en) 1994-07-22

Family

ID=18388872

Family Applications (1)

Application Number Title Priority Date Filing Date
JP34724092A Pending JPH06204011A (en) 1992-12-25 1992-12-25 Arrestor

Country Status (1)

Country Link
JP (1) JPH06204011A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008059870A (en) * 2006-08-30 2008-03-13 Nippon Steel Corp Lightning arrester, structural pillar having lightning protection function, and method of reducing lightning surge voltage
JP2008166104A (en) * 2006-12-28 2008-07-17 Nippon Steel Corp Ground electrode, ground electrode group, and method of reducing lightning surge voltage

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008059870A (en) * 2006-08-30 2008-03-13 Nippon Steel Corp Lightning arrester, structural pillar having lightning protection function, and method of reducing lightning surge voltage
JP2008166104A (en) * 2006-12-28 2008-07-17 Nippon Steel Corp Ground electrode, ground electrode group, and method of reducing lightning surge voltage

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