Patent ID: 9478347
Filing Date: 2016-10-25
CPC Classification: H01F

Claim Text:
1. A distribution transformer comprising: a ferromagnetic core; a coil assembly mounted to the core, the coil assembly comprising: wherein the resin-encapsulated first high voltage coil is separated from the resin-encapsulated low voltage coil by an annular first space, and the resin encapsulated second high voltage coil is separated from the resin-encapsulated first high voltage coil by an annular second space, wherein the resin encapsulated low voltage coil and the resin-encapsulated first and second high voltage coils are arranged concentrically, and wherein the total axial length of the resin-encapsulated first high voltage coil is different than the total axial length of the resin-encapsulated second high voltage coil.