TAP CHANGER

The invention relates to a step switch, comprising a pre-selector and a fine selector. The invention is characterized in that the step switch has a connection (36) between the pre-selector and the fine selector (18), at least one coupling switch (38) being arranged in said connection. A pre-selector...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	HAUSMANN, Martin, KALTENBORN, Uwe, ALBRECHT, Wolfgang, ZERR, Eduard, STOCKER, Andreas, STROF, Thomas, BÄUML, Gerhard, BIERINGER, Alfred, HURM, Christian, SAVELIEV, Anatoli
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BASIC ELECTRIC ELEMENTS ELECTRIC SWITCHES ELECTRICITY EMERGENCY PROTECTIVE DEVICES RELAYS SELECTORS
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Beschreibung
Zusammenfassung:	The invention relates to a step switch, comprising a pre-selector and a fine selector. The invention is characterized in that the step switch has a connection (36) between the pre-selector and the fine selector (18), at least one coupling switch (38) being arranged in said connection. A pre-selector can be switched in a largely gas-free manner by means of said switchable connection with the aid of the fine selector.