Equipped with manual and electric operating mechanisms, it faci l itates the implementation of the three remote control requirements of the power system. The FZRN25-12D/T200-31.5 type AC high-voltage vacuum load break switch-fuse combination apparatus is also designed for 12 kV rated voltage applications, offering load control and short-circuit protection. The earthing switch included can withstand short-circuit currents, and the operating mechanism can be manual or electric, meeting the three remote control requirements of power systems.
The FZN25-12D and FZRN25-12D load break switches and combination apparatus are suitable for load control and short-circuit protection in urban distribution stations and industrial power equipment with three-phase ring networks or terminal power supply. Due to the more reliable and economical protection of electrical equipment such as transformers compared to circuit breakers, they are especially suitable for ring networks, dual-radiation power supply units, and box-type substations.
Ambient condition
Altitude: ≤1000m
Ambient air temperature: ≤+40°C and not lower than -10°C
Relative humidity: ≤90% in indoor locations (at +25°C)
Environment without conductive dust
Absence of corrosive gases that can damage metal and insulation
No severe vibration and impact
Non-combustible and non-explosive environment
