Bus duct assembly for high-power rotary current transformer system

摘要: A rotary transformer system ( 20 ) comprises a rotatable shaft 28 having at least one and preferably plural electrically conductive slip rings 27 mounted thereon. The of the phase planes are connected to their respective windings on rotor assembly 22 by bus conductors 80 ). extend through isolated ducts 82 formed interiorly in have buffer 146 provided therebetween so that not physical contact, but spaced apart separated. mouth 160 annulus 162 each duct cover plate 164 is secured fasteners 166 insulated spacers 167 held slight aloft above circumference ), thereby insulating from plates adjacent flux 170 extends around exterior fastener assemblies 172 Each conductor thus its own grounded metal enclosure, e.g., ensures any fault or electrical failure arc-over will occur first ground before becoming fault.