Gas Insulated Switchgear ( GIS) 800Kv

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800 resistors in parallel per phase as well as mounted with parallel capacitor. Each phase also equipped with a hydraulic operating mechanism which can satisfy very strictly requirement

  • The DS and ES can be directly connected to the busbar or other units separately
  • The mechanism can be operated by motor operating mechanism, or by the manual hand
  • Lightweight enclosures of aluminum with good conductivity, no eddy-current losses and a high resistance to corrosion
  • Short erection times and high reliability, by providing large transport units assembled and tested in the
 
Rated voltage 800kV
Rated current 8000A
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…+40c