SF6 Dead Tank Circuit Breaker(363 KV)

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Having the great ability of interrupting fault current
High hard nozzle against arc burning
With high dielectric level
No eddy-current flow loss on aluminum enclosure
High strength insulating tie rod
High strong switching current ability
Spring energy-stored hydraulic operating mechanism
Be suit to service in particular circumstances
Aluminum enclosure with good conductivity, light weight , low loss, high resistance to corrosion

Rated voltage	363kV
Rated current	4000A
Rated frequency	50Hz
Rated short-time withstand current(3s)	50kA
Rated peak withstand current	125kA
Rated short-circuit breaking current	50kA
Rated making current	125kA
Rated power frequency withstand voltage(1 min.)	520kV
Rated switching impulse withstand voltage	950kV
Rated lightning impulse withstand voltage	1175kV
Leakage rate/ year and gas compartment	≤0.5%
Operating sequence	O-0.3s-CO-180s-CO
Ambient temperature	-25…+40 ℃