GAS-INSULATED SWITCHGEAR

PROBLEM TO BE SOLVED: To provide gas-insulated switchgear that suppresses a switching surge through a simple configuration without enlarging a closed vessel. SOLUTION: When a switching surge is produced due to switching and is propagated to a potential transformer 6 through a high-voltage circuit co...

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Bibliographische Detailangaben
1. Verfasser:	SHINOHARA RYOICHI
Format:	Patent
Sprache:	eng
Schlagworte:	BOARDS, SUBSTATIONS, OR SWITCHING ARRANGEMENTS FOR THE SUPPLYOR DISTRIBUTION OF ELECTRIC POWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINEDOPTICAL AND ELECTRIC CABLES OR LINES
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide gas-insulated switchgear that suppresses a switching surge through a simple configuration without enlarging a closed vessel. SOLUTION: When a switching surge is produced due to switching and is propagated to a potential transformer 6 through a high-voltage circuit conductor 9 and a breaker 5. The switching surge is propagated to the potential transformer 6 through a steep-wave surge suppressor provided in a movable contactor 14 of the breaker 5. The steep-wave surge suppressor shows a frequency characteristic, becomes a resistance component against the steep-wave surge, and the surge voltage to be applied to the potential transformer 6 is divided. As a result, the surge voltage to be propagated to winding is reduced. COPYRIGHT: (C)2011,JPO&INPIT