railway RRB JE (CBT I + CBT II) Mock Test 2024 Power Systems Transmission and Distribution Substation
Gas-insulated substation is smaller than conventional substation because of:
1. high insulation property of SF6 gas
2. high dielectric property of SF6 gas
3. high electronegative property of SF6 gas
1
Only (1)
2
Only (3)
3
(1), (2) and (3)
4
Only (2)