earthing switch rated short-time sithstand current
20kA
earthing switch rated short-cirduit constant time
4(2)S
earthing switch rated peak withstand current
50kA
earthing switch rated short-circuit closing current
50kA
1 min rated frequency withstand voltage
alternate and relatively, vacuum loading switch breaking
42kV
isolating switch breaking
48kV
rated lightning impulse withstand voltage
alternate and relatively, vacuum loading switch breaking
75kV
isolating switch breaking
85kV
mechanical life
vacuum loading switch
10000time
earthing switch, isolating switch
2000time
A.C
3150A
HXGN-12 tank fixed type metal enclosed switchgear ( ring main unit ) is used for A.C 50Hz, 10kV network as broken loading, short-circuit and closing shot-circuit. The ring main unit equiped with manual/electromagnet spring chargedoperated machanism to operate loading switch, earthing switch and isolating switch equiped with manual operated mechanism.
