Oil Insulated Switchgear Guide Specification

The switch shall be operated by a quick-make, quick-break mechanism, which utilizes two expansion springs to insure proper operation torque throughout the life of the mechanism. ... Hz 50/60 Hz BIL impulse withstand 95/110 kV 125 kV 150 kV One minute AC withstand 35 kV 60 kV 70 kV Fifteen minute DC withstand 53 kV 78 kV 103 kV Corona extinction ... ................
................