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.

Rated voltage

550kV

Rated current

4000A

Rated frequency

50 Hz

Rated short-time withstand current(3s)

63kA

Rated peak withstand current

171kA

Rated short-circuit breaking current

63kA

Rated making current

171kA

Rated power frequency withstand voltage(1 min.)

740kV

Rated switching impulse withstand voltage

1300kV

Rated lightning impulse withstand voltage

1675kV

Leakage rate/ year and gas compartment

≤0.5%

Operating sequence

O-0.3s-CO-180s-CO

Ambient temperature

-25…+40 ℃