Title :
Vacuum switching, a well proven technology has found its way into resistance-type load tap changers
Author :
Dohnal, Dieter ; Kurth, Bernhard
Author_Institution :
Maschinenfabrik Reinhausen GmbH, Regensburg, Germany
Abstract :
For 30 years vacuum interrupters have been successfully integrated into reactance-type load tap changers (LTCs). This proven technology is now finally becoming available for resistance-type LTCs. This document explains the technological developments that enabled the introduction of vacuum interrupters into resistance-type LTCs and describes the switching principles of reactance- and the newest resistance-type LTCs that utilize vacuum interrupters. Additionally the advantages of the vacuum technology with respect to reliability, contact life, mechanical life, inspection cycles and economy are discussed
Keywords :
power distribution protection; transformer substations; vacuum interrupters; contact life; economy; inspection cycles; mechanical life; reliability; resistance-type load tap changers; switching principles; vacuum interrupters; Elementary particle vacuum; Inspection; Interrupters; Medium voltage; Oil insulation; Petroleum; Transformers; Vacuum arcs; Vacuum systems; Vacuum technology;
Conference_Titel :
Transmission and Distribution Conference and Exposition, 2001 IEEE/PES
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-7285-9
DOI :
10.1109/TDC.2001.971227
