Original scientific paper

Tap-changer know-how: Enhancing the switching capacity of change-over selectors with minimized gas production

Rainer Frotscher ; Maschinenfabrik Reinhausen, Germany

Abstract

The article discusses methods to reduce the recovery voltages on the open change-over selector contacts. The generation of arcing or sparking gases can be minimized increasing the contact opening speed of the change-over selector. Using an additional snap contact, it can be assumed that the transformer DGA will not be influenced by the change-over operation.

Keywords

on-load tap-changer; change-over selector; arcing gases; sparking gases; transformer DGA

Hrčak ID:

167033

URI

https://hrcak.srce.hr/167033

Publication date:

8.10.2016.

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