JPS601805A - Lightning device - Google Patents
Lightning deviceInfo
- Publication number
- JPS601805A JPS601805A JP58109643A JP10964383A JPS601805A JP S601805 A JPS601805 A JP S601805A JP 58109643 A JP58109643 A JP 58109643A JP 10964383 A JP10964383 A JP 10964383A JP S601805 A JPS601805 A JP S601805A
- Authority
- JP
- Japan
- Prior art keywords
- lightning arrester
- electric field
- zinc oxide
- elements
- insulator
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
- H01C7/10—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material voltage responsive, i.e. varistors
- H01C7/105—Varistor cores
- H01C7/108—Metal oxide
- H01C7/112—ZnO type
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
- H01C7/10—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material voltage responsive, i.e. varistors
- H01C7/12—Overvoltage protection resistors
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Thermistors And Varistors (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
この発明は、避雷装置に関するものであシ、さらに詳し
くいうと、電力系統全瞬時的な異常電圧から保護するた
めの酸化亜鉛形の避雷装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a lightning arrester, and more particularly to a zinc oxide type lightning arrester for protecting a power system from instantaneous abnormal voltages.
電力回路に発生する異常電圧の抑制のため、避雷装置が
使用されるが、この避雷装置の特性要素として酸化亜鉛
を主成分とした金属酸化物の焼結体（酸化亜鉛素子、ま
たは略して単に素子と呼ぶＪが使用される。この酸化亜
鉛素子は電圧非直線性に優れるため、異常電圧抑制後に
も電源からの続流は流れず、避雷装置は直列ギャップが
不要となる利点がある。Lightning arresters are used to suppress abnormal voltages that occur in power circuits, and the characteristic element of this lightning arrester is a sintered body of metal oxide containing zinc oxide as the main component (zinc oxide element, or simply Element J is used. Since this zinc oxide element has excellent voltage non-linearity, no follow-on current from the power supply will flow even after abnormal voltage suppression, and the lightning arrester has the advantage of not requiring a series gap.
素子は、通常、直径ｌα〜／！ｒａｍ、厚さ０．！ｒ
ｃｒｎ〜Ａｃｍ程度の円板状または、円筒状に焼成され
、避雷装置は、この素子全設置される電力系統の電圧に
応じて多数個直列接続して構成する。The elements typically have a diameter lα~/! ram, thickness 0. ! r
The lightning arrester is fired into a disc or cylinder shape with a size of about crn to Acm, and a lightning arrester is constructed by connecting a large number of these elements in series depending on the voltage of the power system in which all of the elements are installed.
第７図に、−例として従来の碍子形の避雷装置を示す。FIG. 7 shows a conventional insulator type lightning arrester as an example.
図において、素子ｌは、上下にフラン゛ジ部コ、３を有
する碍管ダに収納され、碍管ｑ内には、乾燥空気または
、チッ素ガス５が封入される。In the figure, an element 1 is housed in an insulator tube q having upper and lower flange portions 3, and dry air or nitrogen gas 5 is sealed in the insulator tube q.
一般に素子ｌの電気特性は、第２図のカーブＡに示すよ
うに、素子ｌの０．／ ｍＡ／ｍ’の電流密度における
電界が１ｏｏｏ物〜コｏｏｏηら、 ２００ Ａ／ｃｍ
’の電流密度における電界は前記の電界の約へＳ〜２倍
程度に設定されている。ここで、雷電流など大電流通電
時の素子ｌの側面絶縁強度と碍管ｑの外面の気中絶縁強
度を比較すると、両者は概ね調和のとれた絶縁強度を有
している。In general, the electrical characteristics of element 1 are as shown by curve A in FIG. The electric field at a current density of / mA/m' is 100 A/cm,
The electric field at a current density of ' is set to about S~2 times the above electric field. Here, when comparing the side insulation strength of the element 1 and the air insulation strength of the outer surface of the insulator q when a large current such as a lightning current is applied, the two have generally balanced insulation strengths.
第３図は、このような気中絶縁に調和のとれた素子Ｉｔ
、ＢＦ６ガス等の高絶縁耐力のガスを雰囲気ガス６とし
た金属密閉形の避雷装置に使用した従来のものの例で、
雰囲気ガス６を封入した接地タンク７の上端に絶縁スペ
ーサｇを設け、素子ｌはリードｍ９で接続される。この
金属密閉形の避雷装置は、縮小形変電所に使用されるた
め、その大きさ、特に全長は、第１図に示した碍子形の
避雷器より小さくする必要がある。このため第３図に示
すように素子ｌは数枚程度で積上げたユニット’Ｔｈ
リード線デ？用いてジグザグ配置としている。Figure 3 shows an element It that is compatible with such air insulation.
This is an example of a conventional lightning arrester used in a metal-sealed lightning arrester with high dielectric strength gas such as BF6 gas as the atmospheric gas 6.
An insulating spacer g is provided at the upper end of a grounded tank 7 filled with an atmospheric gas 6, and the element l is connected with a lead m9. Since this metal-sealed lightning arrester is used in a compact substation, its size, particularly its overall length, needs to be smaller than the insulator-type lightning arrester shown in FIG. Therefore, as shown in Fig. 3, the element l is a unit 'Th' made up of several elements stacked up.
Lead wire de? It is used in a zigzag arrangement.
しかし、かかるジグザグ配置ではその素子群を支えるた
めの機械的構造が復航となり、内部構造が大形となる欠
点があった。また、電気的にはリード線９が長くなるた
め、避雷装置の残留インダクタンスが増加する欠点もあ
った。However, such a zigzag arrangement has the disadvantage that the mechanical structure for supporting the element group becomes a return trip, resulting in a large internal structure. Further, electrically, since the lead wire 9 becomes longer, there is also a drawback that the residual inductance of the lightning arrester increases.
この発明は、以上の事情に着目してなされたもので、素
子の電界−電流密度特性において、電界を高めた素子を
使用することにより、模造が簡単で小形化を具現できる
避雷装置を提供することを目的とするものである。The present invention has been made in view of the above circumstances, and provides a lightning arrester that can be easily imitated and miniaturized by using an element whose electric field-current density characteristics have increased electric field. The purpose is to
以下、この発明の一実施例を図面について説明する。第
一図のカーブＢは、この発明の避雷装置で使用される素
子の特性で、θ、１ｍＡ７／ｃｍ２の電流密度における
′電界がス０００η−以上に高く設定する。An embodiment of the present invention will be described below with reference to the drawings. Curve B in FIG. 1 shows the characteristics of the element used in the lightning arrester of the present invention, in which the electric field at a current density of θ and 1 mA7/cm2 is set to be higher than 000η-.
このように高い電界の素子は、酸化亜鉛に添加される金
属酸化物の組成配合比率を変えたり焼成時の温度変化の
過程を変化させることにより得ることが可能である。過
電圧吸収時の素子のエネルギー耐量は単位体積当シに換
算すれば、電界を高めた素子もほぼ一定であるので、避
雷装置の処理エネルギーが一定であるとすると、この発
明による避雷装置に使用する素子の直径は太き目となる
。An element with such a high electric field can be obtained by changing the composition ratio of the metal oxide added to zinc oxide or by changing the process of temperature change during firing. The energy withstand capacity of an element when absorbing overvoltage is approximately constant when converted to unit volume, even for elements with increased electric field. Therefore, assuming that the processing energy of the lightning arrester is constant, The diameter of the element becomes thicker.
第７図は以上の素子を用いた金属密閉形の避雷装置で、
符号＆、７．ｇ、９については第３図と同様であるので
説明を省略する。図において素子１０は上述したような
電界を高めた素子であり単に直列に積み上げられる。こ
れは電界を高めた素子１０の必要とされる全素子の長さ
が、従来の素子／の対応する長さに比べて短いためで、
接地タンク７の形状が一定ならば、図示のような簡単な
形となる。また、第３図のようなジグザグ配置をするこ
とにより避雷装置は一層小形なものとなる。Figure 7 shows a metal-sealed lightning arrester using the above elements.
Sign &, 7. g and 9 are the same as in FIG. 3, so their explanation will be omitted. In the figure, elements 10 are elements with enhanced electric fields as described above, and are simply stacked in series. This is because the required total element length of the element 10 with enhanced electric field is shorter than the corresponding length of the conventional element.
If the shape of the grounded tank 7 is constant, it will have a simple shape as shown in the figure. Further, by using the zigzag arrangement as shown in FIG. 3, the lightning arrester can be made even more compact.
次に、他の実施例として、第１図に示したような碍子形
の避雷装置にも適用可能である。この場合、素子長が短
くなることによる素子の側面絶縁強度の低下は、碍管内
部の雰囲気を絶縁耐力の高いＳＦ６カスや絶縁油を使用
することによって稲なう。このように碍子形の避雷装置
に適用することによシ、特に碍管外部の絶縁強度のレベ
ルが低い軽汚損地域用の避雷装置の高ざを低くできる。Next, as another embodiment, it is also applicable to an insulator type lightning arrester as shown in FIG. In this case, the reduction in the side insulation strength of the element due to the shortening of the element length can be avoided by using SF6 scum or insulating oil with high dielectric strength to improve the atmosphere inside the insulator tube. By applying the present invention to an insulator type lightning arrester in this manner, the height of the lightning arrester can be reduced, especially for lightly polluted areas where the insulation strength outside the insulator tube is low.
以上このようにこの発明によれば、醸化亜鉛素子の電界
−電流密度特性におい°Ｃ電界を商めた素子を、高絶縁
財力の雰囲気中で使用するので、素子の積み上げ部の機
械的構造葡簡単にでき、避雷装置の残留インダクタンス
を小さくでき、小形の避盾装置を得ることができる。As described above, according to the present invention, since the element whose electric field-current density characteristic of the enriched zinc element has an electric field of °C is used in an atmosphere with high dielectric strength, the mechanical structure of the stacked part of the elements can be improved. It is easy to make, the residual inductance of the lightning arrester can be reduced, and a small shielding device can be obtained.
第１図は従来の碍子形避雷装置の縦断面図、第２図は酸
化亜鉛素子の電界−電流密度特性の比較例線図、第３図
は従来の金属密閉形避雷装置の縦断面図、第を図はこの
発明の一実施例の縦断面図である。
６・・雰囲気ガス、７・・接地タンク、ｇ・・絶縁スペ
ーサ、デ・・リード線、ＩＯ・・酸化亜鉛素子。
なお、各図中、同一符号は同−又は相当部分を示す。
代理人 大 岩 増 雄
第１図
Ｖり３図
幣２図
幣４図
手続補正書「自発」
特許庁長官殿
１、事件の表示 特願昭ｊざ−１０９１，１７３号３、
補正をする者
代表者片山仁へ部
（１）図 面Fig. 1 is a longitudinal cross-sectional view of a conventional insulator type lightning arrester, Fig. 2 is a comparative diagram of electric field-current density characteristics of a zinc oxide element, and Fig. 3 is a longitudinal cross-sectional view of a conventional metal sealed lightning arrester. Figure 5 is a longitudinal sectional view of one embodiment of the present invention. 6.Atmospheric gas, 7.Grounding tank, g..Insulating spacer, D..Lead wire, IO..Zinc oxide element. In each figure, the same reference numerals indicate the same or corresponding parts. Agent: Masuo Oiwa No. 1, No. 3, No. 2, No. 4, Procedure amendment “Volunteer” Commissioner of the Japan Patent Office 1, Indication of case: Patent Application Shojza-1091,173 No. 3,
Part (1) Drawings to Hitoshi Katayama, representative of the person making the amendment
Claims (2)
る特性要素を複数直列に積層してなる避雷装置において
、０．／ ｍＡ／（ｚ’の電流密度における電界が少く
とも２０００Ｖ／−の前記特性要素を備えてなることを
特徴とする避雷装置。(1) In a lightning arrester comprising a plurality of characteristic elements laminated in series, each of which is a voltage non-linear resistor whose main component is zinc oxide, / mA/(z') electric field is at least 2000 V/-.
された特許請求の範囲第１項記載の避雷装置。(2) The lightning arrester according to claim 1, wherein the characteristic element is disposed in an insulating medium having high dielectric strength.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58109643A JPS601805A (en) | 1983-06-17 | 1983-06-17 | Lightning device |
| EP84105679A EP0129077A1 (en) | 1983-06-17 | 1984-05-18 | Lightning arrester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58109643A JPS601805A (en) | 1983-06-17 | 1983-06-17 | Lightning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS601805A true JPS601805A (en) | 1985-01-08 |
Family
ID=14515478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58109643A Pending JPS601805A (en) | 1983-06-17 | 1983-06-17 | Lightning device |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0129077A1 (en) |
| JP (1) | JPS601805A (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2248117B2 (en) * | 1972-09-28 | 1975-03-20 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Surge arrester with a gas-filled housing |
| US4184984A (en) * | 1976-09-07 | 1980-01-22 | General Electric Company | High breakdown voltage varistor |
-
1983
- 1983-06-17 JP JP58109643A patent/JPS601805A/en active Pending
-
1984
- 1984-05-18 EP EP84105679A patent/EP0129077A1/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| EP0129077A1 (en) | 1984-12-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4825188A (en) | Method of manufacturing a lightning arrester, and a lightning arrester obtained by the method | |
| JPS5919448B2 (en) | Lightning arrester | |
| US4502089A (en) | Lightning arrester | |
| JPS60170420A (en) | Overvoltage peak suppressing device | |
| US3733521A (en) | Lightning arrester | |
| JPS601805A (en) | Lightning device | |
| GB2030390A (en) | Protection arrangement for voltage line | |
| EP0004350A1 (en) | Aerial power transmission system | |
| JP2740390B2 (en) | Zinc oxide arrester | |
| JPH057835B2 (en) | ||
| ZA812067B (en) | Surge arrester | |
| JP3119938B2 (en) | Tank type surge arrester | |
| US3106661A (en) | Lightning arrester | |
| JPH08316007A (en) | Zinc oxide arrester | |
| EP0004351A1 (en) | Lightning arrester device | |
| JPS5895933A (en) | Surge absorbing element | |
| JPS5915445Y2 (en) | Abnormal voltage absorption device | |
| JPS5954184A (en) | Zinc oxide arrester with gap | |
| US3757152A (en) | Resistor assembly | |
| JPS59130402A (en) | Arrester | |
| JPH0132312Y2 (en) | ||
| JPS592362B2 (en) | Lightning arrester | |
| JPS596111Y2 (en) | transformer protection device | |
| JPS60136190A (en) | Arrester for power distribution | |
| JPS61154114A (en) | Thunderbolt-proof type transformer |