10kV MV Indoor LBS-Fuse Combination Indoor Load Break Switch, VACFR12-12D/T125-31.5

1. General description

VACF12-12D/T630-20kA type indoor AC M.V. load switch is a MV. switch equipment with rated voltage of 12kV, rated frequency tri-phase 50Hz, for the closing and opening load current, loop current, air containing transformers and cable charging current, short circuit current of the closing. Equipped with earthing switch, load switch can withstand short-circuit current.

VACFR12A-12D/T125A-31.5kA type AC M.V. load switch-fuse combination units, is the VFKN12A-12D load switch and S□LAJ-12(XRNT□-10)M.V. current-limiting type fuse combination units together in the door M.V. switchgear. It can be a reliable short-circuit breaking current up to any current; load switch breaking current, the fuse short-circuit breaking current breaking joint working between the current and total short-circuit current of any over-current, fuse through its impact to load switches opening.

The Technical Specifications of this LBS-Fuse Combination define its electrical and mechanical parameters for indoor medium-voltage switchgear applications. The Indoor Load Break Switch model VACFR12-12D/T125-31.5 is a medium-voltage switch equipment with rated voltage of 12kV and rated frequency of three-phase 50Hz, designed for closing and opening load current, loop current, no-load transformers and cable charging current, as well as short circuit current closing. This 12kV Load Switch Fuse Unit is equipped with an earthing switch and can withstand short-circuit current. The LBS-Fuse Combination integrates the load switch and medium-voltage current-limiting fuse into a single door-mounted switchgear assembly, providing reliable short-circuit breaking current up to any value. The Indoor Load Break Switch handles breaking current while the fuse manages short-circuit breaking current, with coordinated operation between load switch and fuse for total short-circuit over-current protection. This 12kV Load Switch Fuse Unit features a spring mechanism and includes earthing switch functionality. Each LBS-Fuse Combination undergoes comprehensive testing to ensure reliable performance in demanding distribution networks.

2. Type and meaning

3. Main technical parameter

4. Mechanical property