The FZN25-12D/T630-20 series high-voltage vacuum load switch is an indoor device designed for three-phase AC 50Hz, with a rated voltage of 12kV. It is suitable for applications such as power distribution stations and substations in industrial and mining enterprises, serving for the protection and control of electrical facilities. It is used to switch load currents, closed-loop currents, no-load transformers, and cable charging currents.
The FZRN25-12D/T125-31.5 series high-voltage vacuum load switch-fuse combination apparatus is an indoor device designed for three-phase AC 50Hz, with a rated voltage of 12kV. It is suitable for applications such as power distribution stations and substations in industrial and mining enterprises, serving for load control and short-circuit protection. The equipped grounding switch can withstand short-circuit currents. The operating mechanism can be manual or electric, facilitating the realization of the three remote control requirements of the power system.
The FZN25-12D and FZRN25-12D series load switches and combination apparatus are suitable for urban distribution stations and industrial electrical equipment supplied by three-phase ring networks or terminal power sources, serving for load control and short-circuit protection. As the combination apparatus provides more reliable and economical protection for electrical equipment such as transformers compared to circuit breakers, it is particularly suitable for ring networks, dual-radiation power supply units, and box-type substations.