報告書番号

780004

タイトル（和文）

オプトエレクトロニクス方式を用いた高電位点用電流測定器－その１─光アナログ伝送方式

タイトル（英文）

CURRENT MEASUREMENT DEVICE USING OPTOELECTRONICS FOR HIGH VOLTAGE LINE (1) -ANALOG LIGHT LINK METHOD-

概要 （図表や脚注は「報告書全文」に掲載しております）

本報告書は，高電位点における電流測定用として試作開発した光アナログ伝送式電流測定器の諸性能ならびに適用例について述べたものである。１．主な性能（１）非直線性誤差：±２．５％以下（２）温度特性：２５ｄｅｇｒｅｅｓｃｅｎｔｉｇｒａｄｅ±２０ｄｅｇｒｅｅｓｃｅｎｔｉｇｒａｄｅにおける利得の変化率±２％以下（３）周波数特性：ＤＣから７００ｋＨｚ（－３ｄＢ値）２．適用例（１）５００ＫＶ用直列コンデンサの対地充電々流の高電位側測定（２）真空遮断器のさい断電流測定（３）雷インパルス電流（４／１７マイクロ秒）の測定

概要 （英文）

THIS REPORT DESCRIBES ABOUT THE CHARACTERISTICS OF CURRENT MEASUREMENT DEVICE USING OPTOELECTRONICS WHICH WE HAVE DEVELOPED,AND MEASUREMENT OF CURRENT AT HIGH VOLTAGE USING THIS DEVICE. THE CHARACTERISTICS OF THIS DEVICE ARE AS FOLLOWS: (1) THE TOTAL ERROR INCLUDING LINEARITY IS WITHIN PLUS OR MINUS 5% AT THE AMBIENT TEMPERATURE 25 DEGREES CENTIGRADE PLUS OR MINUS 20 DEGREES CENTIGRADE. (2) THE FREQUENCY RESPONSE IS IN THE RANGE D.C.TO 700KHZ(-3DB). THE RESULTS OF CURRENT MEASUREMENT AT HIGH VOLTAGE USING THIS DEVICE ARE AS FOLLOWS: (1) ON A SERIES OF VERFICATION TESTS FOR THE 500KV SERIES CAPACITY REQUIPMENT,THE LINE CHARGING AND SWITCHING SURGE CURRENTS WERE MEASURED AT THE 500KV LINE. (2) ON THE SMALL INDUCTIVE CURRENT BREAKING TESTS(31KV,5 TO 20A)FOR A VACUUM CIRCUIT-BREAKER,THE CHOPPING CURRENTS WERE MEASUREDAT HIGH VOLTAGE. (3) THE LIGHTNING IMPULSE CURRENT(3.3KA,APPROX.4/17 MICROSECONDS)WAS MEASURED.

報告者

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