LIFE DIAGNOSIS DEVICE OF SURGE PROTECTION DEVICE

PROBLEM TO BE SOLVED: To provide a low cost life diagnosis device of a surge protection device ensuring exact life determination while taking the impulse life characteristics of the surge protection device into account.SOLUTION: The life diagnosis device of a surge protection device includes a proce...

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Bibliographische Detailangaben
Hauptverfasser:	JO ARITSUNE, MURAKAWA YASUTAKA, OHASHI YOSHIKAZU, ASAI AKIRA
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS CORONA DEVICES ELECTRICITY GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES OVERVOLTAGE ARRESTERS USING SPARK GAPS PHYSICS SPARK GAPS SPARKING PLUGS TESTING
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a low cost life diagnosis device of a surge protection device ensuring exact life determination while taking the impulse life characteristics of the surge protection device into account.SOLUTION: The life diagnosis device of a surge protection device includes a processor 1 performing life diagnosis of a surge protection device by receiving signals from first through n-th surge detection units U1-Un having an input section 11 to which a signal from a current sensor for detecting a surge current flowing through the surge protection device is input, a peak hold section 12 for holding the peak value of an analog signal from the input section 11, and an attenuation section 13 for attenuating an analog signal held by the peak hold section 12 exponentially, and a display device 2 for displaying the results of diagnosis.