e²ALPHA MV Switchgears

e²ALPHA® e²ALPHA®-2S e²ALPHA®-G
       
Switchgear rated voltage 12kV 17,5kV 24kV 12kV 17,5kV 12kV
Lighting impulse test voltage (1.2/50 μs)piorunowe (1,2/50μs) 75kV 95kV 125kV 75kV 95kV 75kV
Power frequency test voltage  (1 min) 28kV 38kV 50kV 28kV 38kV 28kV
Rated frequency 50Hz 50Hz 50Hz 50Hz 50Hz 50Hz
Rated current of busbar, incoming and coupling bays 630-2000A 630-2000A 630-2000A 630-2500A 630-2500A do 1250 A
Rated current of outgoing bays 630-2000A 630-2000A 630-2000A 630-2500A 630-2500A do 1250 A
Rated short-time withstand current (3 s)(1s)3) do 31,5kA do 31,5kA do 25kA do 31,5kA do 31,5kA do 25kA
Internal arc resistance (1s)(0,1s)3) do 31,5kA do 31,5kA do 25kA do 31,5kA do 31,5kA do 25kA
Rated peak withstand current do 80kA do 80kA do 63kA do 80kA do 80kA do 63kA
Switchgear protection rating IP 4X / IP 54 IP 4X / IP 54 IP 4X IP 4X / IP 54 IP 4X / IP 54 IP 4X / IP 54
Accessibility of compartments LSC2B LSC2B LSC2B LSC2B LSC2B LSC2B
Classification of enclosures PM PM PM PM PM PM
Internal arc resistance class AFLR AFLR AFLR AFLR AFLR AFLR
Bay width 400-800 mm 400-800 mm 750-950 mm 650-1100 mm 650-1100 mm 600 mm
Bay height 21001) / 22002) mm 21001) / 22002) mm 2300 mm 2680 mm 2680 mm 1800 mm
Bay depth 12501) / 13502) mm 12501) /  13502) mm 1440 mm 1750 mm 1750 mm 1480 mm
Maximum height of work 1000 m 1000 m 1000 m 1000 m 1000 m 1000 m
Maximum relative humidity             at 25 ° C 100% 100% 100% 100% 100% 100%
1)  - busbar current up to 1250 A (12 - 17,5 kV) 2) - busbar current up to 2000 A (12 - 17,5 kV), do 2500 A (12 kV) 3) - duration of faults for the Switchgear e2ALPHA-G •/o - standard/option