SSH EN 61660-1:1997

Rrymat e qarkut të shkurtër në instalimet ndihmëse të ushqimit të rrymës së vazhduar në impiantet e fuqisë dhe nënstacionet - Pjesa 1: Llogaritja e rrymave të qarkut të shkurtër

Short-circuit currents in d.c. auxiliary installations in power plants and substations - Part 1: Calculation of short-circuit currents

Scope

Describes method for calculating short-circuit currents in d.c. auxilliary systems in power plants and substations, which can be equipped with the following equipment, acting as short-circuit current sources: - rectifiers in three-phase a.c. bridge connection for 50 Hz; - stationary lead-acid batteries; - smoothing capacitors; - d.c. motors with independent excitation Provides a generally applicable method of calculation which produces results of sufficient accuracy on the conservative side.