VDE 0435-3121. Measuring relays and protection equipment - Part 121: Functional requirements for distance protection.
STANDARD published on 1.1.2015
Designation standards: DIN EN 60255-121:2015-01
Publication date standards: 1.1.2015
The number of pages: 153
Approximate weight : 490 g (1.08 lbs)
Country: German technical standard
Category: Technical standards DIN
VDE 0435-3121. Messrelais und Schutzeinrichtungen - Teil 121: Funktionsanforderungen für den Distanzschutz.