Enclosure for a power supply

摘要

An enclosure includes a closed housing having a wall dividing the housing into a first compartment containing a high voltage portion of the power supply and a second compartment containing a low voltage portion of the power supply. A dielectric fluid fills the first compartment and partially fills the second compartment. A first check valve disposed in the wall enables fluid to flow from the first compartment to the second compartment during a temperature increase to compensate for expansion of the fluid in the first compartment. A second check valve disposed in the wall, in communication with the fluid in the second compartment, enables the fluid to flow from the second compartment to the first compartment during a temperature decrease to maintain the first compartment full of the fluid. A feeder line is provided in the second compartment operative at all times to have one end in communication with the second valve and the other end submerged in the fluid in the second compartment independent of the attitude of the housing within an acceptable attitude range.