Switching module

A switching module includes a determiner to open a first bidirectional switch and close a second bidirectional switch from a first time point over a testing period to determine that the first bidirectional switch has a short circuit failure when a differential absolute value of voltage values detect...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Nomura, Hideaki, Mori, Michiya
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRONIC CIRCUITRY CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS GENERATION MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES PHYSICS PULSE TECHNIQUE TESTING
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Beschreibung
Zusammenfassung:	A switching module includes a determiner to open a first bidirectional switch and close a second bidirectional switch from a first time point over a testing period to determine that the first bidirectional switch has a short circuit failure when a differential absolute value of voltage values detected by voltmeters is equal to a preset voltage threshold value or less, and to open the first bidirectional switch and close the second bidirectional switch from a second time point after a period of n+½ times, where n is a positive integer, the set cycle from the first time point elapses, over a testing period to determine that the first bidirectional switch has a short circuit failure when a differential absolute value of the voltage values detected by the voltmeters is equal to the voltage threshold value or less.