FN12 FZN12 12KV Air pressure Load Break Switch Disconnector

FN12 FZN12 12KV Air pressure Load Break Switch Disconnector 

FN12-12D and FN12-12DR series switch-fuse combinations is a three-phase high voltage switchgear with rated voltage of 12kV and rated frequency of 50Hz, and it's mainly used to make and break the load current, closed-loop current, no-load transformer and cable charging current, and also close short circuit current. The combination can break short-circuit current, and load break switch with earth switch can bear short circuit current. It’s used for load control and short circuit protection for substations of three-phase ring network or urban buildings and industrial and mining enterprises. 

Product Standard

GB311.1-1997 Insulation Co-ordination for High Voltage Transmission and Distribution Equipment；
GB3804-2004 High-voltage Alternating-current Switches for Rated Voltage above 3.6kV and less than 40.5kV；
GB/T 11022-1999 Common Specifications for High-voltage Switchgear and Controlgear Standards；
DL/T593-2006 Common Specifications for High-voltage Switchgear and Controlgear Standards；
GB16926-2009 High-voltage Alternating Current Switch-Fuse Combinations；
GB/T 1985-2004 High-voltage Alternating-current Disconnectors and Earthing Switches；
GB/T 15166 -94 High-voltage Alternating-current Fuses.

Technical data