Installation and field testing of 138kV SF6 gas insulated station and transmission line

This paper covers installation procedures and testing methods of a 138kV SF6 gas insulated station coupled to 117.5m (385ft) and 367m (1204ft) SF6 gas insulated transmission line exits. Three factors guided American Electric Power Service Corporation in selecting its first SF6 gas insulated station and line exits. These were: available space for expansion of facilities at Indiana & Michigan Electric Company's East Side Station in South Bend, Indiana, aesthetic considerations, and the desire to be involved with this new technology and thus gain needed experience.