High-capacity isolated-phase buses

THE ISOLATED-PHASE BUS, which has become the standard method for connecting power generators to transformers, has presented some problems on inductive heating of adjacent material, and there has been some question of the possibility of pressurizing the installed bus to exclude dust. Laboratory tests on these buses, run at 11,000 amperes and 15,000 amperes, and laboratory and field tests on cover tightness have produced valuable statistics for calculating induced heating and for checking cover tightness.