24kV Indoor-Lasttrennschalter

24kV M.V. indoor load break switch The electrical technical parameter Item UnitParameterRated Voltage [kV]24Power Frequency Withstand voltage 50Hz/1min To earth and between phases [kV]70Across isolation (contacts open) 80Impulse Withstand Voltage To earth and between phases [kV]170Across isolation (contacts open) 190Impulse withstand voltage to earth and between phases Up[kV]125Rated current In[A]400-630Breaking capacity of active circuits (cos ø 0.7) and ring circuits at 0.3 Vn Isc[kA]400-630Breaking capacity of no-load transformers Isc[kA]25Breaking capacity of no-load lines / cables Isc[kA]25Earth fault breaking capacity Isc[kA]200Cable and line-charging breaking current under earth fault condition Isc[kA]50Transfer current In[A]800Short time withstand current - 1 sec. Ik[kA]12,5-25Short time withstand current - 3 sec. Ik[kA]12,5-20Making capacity [kA]31,5-62,5