Gas-insulated switchgear

F35
Substation with the latest g3 gas insulation

GE's F35 GIS is a field-proven solution with high availability that meets the challenges of networks up to 170 kV for power generation, transmission, distribution, tertiary and heavy industry applications. The F35 is available in 72.5 kV, 145 kV and 170 kV ratings. GE’s F35 is also available SF6-free with g3-gas technology, see F35g

The F35 is a compact and accessible GIS solution, with a bay footprint below the market average. Up to 3 bays are assembled together, wired, tested and shipped enabling shorter site works. A whole F35-72,5 kV gas-insulated substation fits into the most advanced and powerful wind turbine towers, enabling them to handle more power while reducing energy losses.

In addition, the F35 is environmentally friendly and features an advanced SF6 sealing system. Full digital monitoring control and protection capabilities, and an optimized user interface enable the F35 to be readily integrated into the smart grid.

Main Characteristics

Environment friendliness

Low gas weight
Advanced SF6 sealing system
Smart grid features including full-digital monitoring, control and protection
Available in g3 up to 145 kV
High availability

One of the best experiences and high data reliability
Current transformers outside SF6
Drives and accessories at easy reach
Pure-spring circuit breaker drives
Low costs of land and civil works

One of the most compact GIS with bay footprint up to 45% below market average depending on kV rating
Up to 2 bays (145 kV), up to 3 bays (72.5 kV), and complete bays (170 kV) assembled, wired, tested and shipped
Isolating device for voltage transformer / surge arrester
Applicable for wind turbines at 72.5 kV

Handle more power while reducing energy losses
A compact HV substation fits in the wind turbine
Withstands harsh environments
Short installation time

Technical data F35g

Rated voltage, kV
72.5-170
Rated frequency, Hz
50/60
Short-duration power-frequency, phase-to-earth / across isolating distance
140/160, 275/315, 325/375
Lightning impulse, phase-to-earth / across isolating distance
325/375, 650/750, 750/860
Rated current, A
31500-50000
Withstand short-term rated current (3 s), kA
80-130
Peak rated withstand current, kA
80-130
Turn off time, ms
50
Closing time, ms
70-100
Ambient temperature range, °C
-30 — +55