SF6 Dead Tank Circuit Breaker (800KV)

Back

This type of GIS adopt modular design provides a high versatility to meet the most challenging present and future user requirements which especially used in different areas such as switching stations, outdoor substations and generating plants etc

  • 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
  • Be suit to service in particular circumstances
Rated voltage 800kV
Rated current 5000A
Rated frequency 50 Hz
Rated short-time withstand current(3s) 50kA
Rated peak withstand current 135kA
Rated short-circuit breaking current 50kA
Rated making current 135kA
Rated power frequency withstand voltage(1 min.) 960kV
Rated switching impulse withstand voltage 1550kV
Rated lightning impulse withstand voltage 2100kV
Leakage rate/ year and gas compartment ≤0.5%
Operating sequence O-0.3s-CO-180s-CO
Ambient temperature -25…+40 ℃