±550kV DC GIS

Item

Unit

Parameter

Rated Voltage

kV

±550

Rated Current

A

5000

Rated Short-time Withstand Current and Duration

kA,s

63/2s

Rated Peak Withstand Current (Peak)

kA

160

Rated DC Withstand Voltage to Earth

kV

±825

Rated Lightning Impulse Withstand Voltage

kV

1675

1550±550

Rated Switching Impulse Withstand Voltage

kV

1300

1175±550

SF₆ Gas Rated Pressure

MPa

0.50

SF₆ Gas Leakage Rate

%/year

0.1

Disconnector, Grounding Switch Mechanical Life

Times

5000

Current Transformer Accuracy Class

Class

0.1

Voltage Transformer Accuracy Class

Class

0.1