Products

GAE GLX series, SF6 Insulated Ring Main Unit Up to 24kV

GAE GLX series, SF6 Insulated Ring Main Unit Up to 24kV

GAE GLX series, SF6 Insulated Ring Main Unit Up to 24kV

GENERAL DESCRIPTION


GAE GLX series ring main unit is an extensible, SF6 insulated switchgear, with rated voltage of 12&24 kV. All its HV live parts are contained in air tight gas tank, which is made from stainless steel of 3mm.
The whole switching assembly is SF6 insulated, and free from any external influence, ensuring it great reliability of service and maintenance free.
By plug in type busbar extention, GAE GLX series can be free combination and full modularization.
The busbar extention has passed type test for power and thermal stability and is fully insulated and shielded exhibiting high reliability and safety.
GAE GLX series ring main unit is suitable for all MV network up to 24kV, all compact power station, power distribution substation in all important industries, such as petrol chemical industry, metallurgical and mining industries and all transformer substation and wind power system.

SPECIFICATION for GAE GLX series




Description Unit GAE GLX12 GAE GLX24
Rated voltage kV 12 24
Power frequency withstand Phase to phase/earth kV 42 50, (65)*
voltage (1min) Between open contacts kV 48 64, (79)*
Impulse withstand Phase to phase/earth kV 75, (95)* 95, (125)*
voltage Between open contacts kV 85, (110)* 110, (145)*
Rated frequency
Hz 50, 60 50, 60
Rated current
A 630 630
Rated short circuit breaking current
kA

Rated short time withstand current
kA/s 20/3


(20/4), 25/1)* 20/3, (20/4)*
Rated peak withstand current
kA 50, (63)* 50
Rated short circuit making current
kA 50, (63)* 50
Rated transfer current
A

Rated active load breaking current
A 630 630
Rated close loop breaking current
A 630 630
5% rated active load breaking current
A 31.5 31.5
Rated operating sequence



Mechanical lifetime
Ops. 5000 5000
Electrical lifetime

E3 E3
Thickness of stainless steel
mm 3.0
SF6 rated pressure
kPa 30 (at 20°C, 101.3kPa)
Leakage rate per year

≤ 0,02%
Water treatment test

12kV 24 hours (at 30 kPa under water) 24kV 24 hours (at 30 kPa under water)
Internal Arc test

20kA1s
Protection degree Gas tank
IP 67
Fuse holder
IP 67
RMU
IP 4x