Application of a new silver/tin oxide for capacitive loads

Author

Behrens, V. ; Honig, Th. ; Kraus, A. ; Michel, R. ; Minkenberg, N. ; Saeger, K.E.

Author_Institution

DODUCO GmbH Co., Pforzheim, Germany

fYear

1994

fDate

17-19 Oct. 1994

Firstpage

269

Lastpage

273

Abstract

The new silver/tin oxide material, Ag/SnO₂ 12 WPX, which is based on the utilization of tin oxide powder produced with the aid of the so-called ´reaction spray process´ has been tested in contactors for capacitive loads. The test were performed in two different types of contactors for 25 and 50 kVAR load, focusing on electrical service life. Reference materials were the standard silver/cadmium oxide material for capacitive loads, ´Sicadox´, and the standard silver/cadmium oxide for AC3 applications, Ag/CdO 10 ZH. The investigations carried out showed the new Ag/SnO₂ 12 WPX to be superior to the other materials examined. The results obtained are discussed in terms of metallurgical processes taking place in the different contact materials under the action of the arc.

Keywords

contactors; powder technology; silver; tin compounds; 25 kVAr; 50 kVAr; AC3 applications; Ag-SnO₂; Ag/SnO₂ 12 WPX; arc; capacitive loads; contact materials; contactors; electrical service life; metallurgical processes; powder; reaction spraying; silver/tin oxide; Cadmium compounds; Contactors; Inorganic materials; Life testing; Materials testing; Performance evaluation; Powders; Silver; Spraying; Tin;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Contacts, 1994. Proceedings of the Fortieth IEEE Holm Conference on Electrical Contacts

Print_ISBN

0-7803-2133-2

Type

conf

DOI

10.1109/HOLM.1994.636847

Filename

636847