The DXG-40.5(Z) GIS is suitable for power plant, substation, combined substation and electric power system, which is three phase indoor AC single busbar and sectioning single busbar with 50Hz, 35kV rated voltage, used to control, accept and distribute electric power.

Service ambient condition:
Air temperature: Max: +40, Min: -25 (average is not more than 35 in 24 hours)
Altitude above sea level: <= 3000m
Air humidity: The average relative humidity measured in 24 hours is not more than 95%, the average relative humidity per month is not more than 90%, average water vapor pressure measured in 24 hours is not more than 2.2kPa, average water vapor pressure per month is not more than 1.8 kPa.
Without frequent heavy vibration
The range of induction electromagnetic interference of secondary system is not more than 1.6kV
Conditions excluded from above are in need of negotiating with the manufacturer.
 
Technical Data

Rated voltage	40.5kV
Rated frequency	50,60Hz
Rated current	630, 1250, 2000,2500A
Rated short circuit breaking current	25, 31.5,40kA
Rated making current	50, 63, 80kA
I min power frequency withstand voltage	95kV ( phase to phase, phase to earth)
	118kV (betwwen isolating clearnace)
Rated  lightning impulse withstand voltage	185kV ( phase to phase, phase to earth)
	215kV (betwwen isolating clearnace)
Protection degree	IP67( gas-filled compartment) IP4X (LV compartment)
Power frequency withstand voltage of auxiliary control circuit (1 min)	2000V
Rated short time withstand current	20kA/4s 25kA/4s, 31.5kA/4s
Rated peak withstand current	50,63,80kA
Every phase main return circuit resistance	<25uΩ
Rated SF6 gas pressure (20℃)	0.05Mpa
Min SF6 gas pressure (20℃)	0.03Mpa
Annual SF6 gas loss rate	<0.5%
Rated voltage of auxiliary control circuit	DC110/220
Dimension (WxDxH)	600x1400x2550mm
	800x1600x2550mm