SURGE PROTECTIVE ELEMENT

PROBLEM TO BE SOLVED: To provide a surge protective element in which burning of an element due to huge arc is prevented when a DC high voltage is applied between electrodes.SOLUTION: In a varistor 100A, as a surge protective element, including a varistor element 30A having non-linear resistance char...

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Bibliographic Details
Main Authors KAKIUCHI KENSUKE, SUZUKI JUNICHI, UEDA NORIAKI
Format Patent
LanguageEnglish
Japanese
Published 20.11.2014
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRICITY
RESISTORS
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Summary:PROBLEM TO BE SOLVED: To provide a surge protective element in which burning of an element due to huge arc is prevented when a DC high voltage is applied between electrodes.SOLUTION: In a varistor 100A, as a surge protective element, including a varistor element 30A having non-linear resistance characteristics, and a pair of electrodes 10A, 20A connected therewith, at least one electrode 10A out of the pair of electrodes 10A, 20A is provided with two planar terminals 11A, 12A, and these terminals 11A, 12A are connected in common so that a DC voltage is applied between the terminals 11A, 12A and the terminal 21A of the other electrode 20A. Consequently, burning of the varistor 100A due to huge arc is prevented when a DC high voltage is applied between the terminals 11A, 12A and the terminal 21A. 【課題】電極間に直流高電圧が印加されて場合のアークの巨大化による素子の焼損を未然に防止するようにしたサージ防護素子を提供する。【解決手段】非直線性抵抗特性を有するバリスタエレメント３０Ａと、このバリスタエレメント３０Ａに接続された一対の電極１０Ａ，２０Ａと、を有するサージ防護素子としてのバリスタ１００Ａにおいて、一対の電極１０Ａ，２０Ａのうち少なくとも一方の電極１０Ａに二つの板状端子１１Ａ，１２Ａを設け、これらの端子１１Ａ，１２Ａを共通接続して端子１１Ａ，１２Ａと他方の電極２０Ａの端子２１Ａとの間に直流電圧が印加されるように構成されている。これにより、端子１１Ａ，１２Ａと端子２１Ａとの間に直流の高電圧が印加された場合のアークの巨大化によるバリスタ１００Ａの焼損を未然に防止する。【選択図】図１
Bibliography:Application Number: JP20130098168