Technical Visualization

145/63kA 3Ph-Enclosed GIS

GS
  145kV
Nominal Current Up to 4,000 A RMS
Short-circuit current 63kA RMS (3s)
Lightening impulse 650kV Peak
Power frequency V 275kV Peak
Breaker time 3 cycles
CB gas pressure 87 psig (0.6MPag)
Other gas pressure 73 psig (0.5MPag)
Leakage < 0.1%/yr
Environment Outdoor (-30 to 50° C)
SW operating mechanism Flex linkage
CB operating mechanism Spring
FGS operating mechanism Motor charged spring
145/63kA 3Ph-Enclosed GIS

GS
  145kV
Nominal Current Up to 4,000 A RMS
Short-circuit current 63kA RMS (3s)
Lightening impulse 900kV Peak
Power frequency V 475kV Peak
Breaker time 3 cycles
CB gas pressure 87 psig
Other gas pressure 73 psig
Leakage < 0.1%/yr
Environment Outdoor (-30 to +40° C)
SW operating mechanism Flex Mechanical linkage
CB operating mechanism Spring
FGS operating mechanism Motor driven