Submerged Ferrite Flowing Fluid Cooled Transformer

A submerged ferrite fluid cooled transformer, comprising:

• a transformer assembly, comprising:
• a magnetic core having a central aperture extending transversely through the magnetic core;
• a primary winding wrapped about the magnetic core, the primary winding coaxially disposed within flexible tubing comprising a dielectric material;
• wherein the primary winding is connected to an external power source;
• wherein the flexible tubing is connected to an external cooling fluid source configured to circulate cooling fluid through the flexible tubing defining a primary winding cooling circuit;
• a secondary winding comprising a central line and a return line branching from a junction point, the central line extending through the central aperture of the magnetic core and the return line passing about an exterior of the magnetic core, wherein the central line and the return line terminate in a connection block;
• wherein the secondary winding comprises a hollow tubing in fluid communication with a cooling fluid source;
• wherein the connection block comprises a connection block outlet in fluid communication with the central line and a connection block inlet in fluid communication with the return line;
• a dam disposed across the interior of the central line proximate to the junction point, the dam configured to prevent fluid flow between the return line and the central line;
• one or more ports disposed through the central line between the connection block outlet and the dam;
• a sealed enclosure comprising an upper shell portion securable to a lower shell portion, to form a fluid impermeable seal therebetween, wherein the sealed enclosure is dimensioned to receive the transformer assembly therein, such that the connection block is disposed exterior to the sealed enclosure;
• a primary winding inlet and a primary winding outlet disposed through the sealed enclosure, the primary winding inlet and the primary winding outlet dimensioned to receive the primary winding and the flexible tubing therethrough to form a fluid impermeable seal;
• a secondary winding outlet disposed through the sealed enclosure dimensioned to receive the secondary winding therethrough to form a fluid impermeable seal;
• an enclosure inlet extending from the upper shell portion providing access to an interior of the sealed enclosure, the enclosure inlet in fluid communication with an external cooling fluid source;
• wherein a transformer cooling circuit is defined between the enclosure inlet and the secondary winding outlet, wherein cooling fluid passes over the transformer assembly and into the central line via the one or more ports, exits the connection block outlet, passes through an induction coil affixed to the connection block, enters the connection block inlet, and exits via the secondary winding outlet.

A method of cooling a transformer assembly disposed within a sealed enclosure, comprising:

• providing a transformer assembly comprising a primary winding wrapped about a magnetic core, the magnetic core having a central aperture transversely therethrough, and a secondary winding passing through the central aperture and around an exterior of the magnetic core;
• sealing the transformer assembly within a sealed enclosure defining a fluid impermeable boundary about the transformer assembly;
• securing a fluid line to each of an enclosure inlet and an enclosure outlet disposed on the sealed enclosure, wherein opposing ends of the primary winding extend through the enclosure inlet and the enclosure outlet;
• affixing an induction coil to a connection block electrically connected to the secondary winding;
• supplying an alternating electrical current to the primary winding via an external power source, such that electrical energy is transferred to the secondary winding and associated connection block;
• pumping cooling fluid from an external cooling fluid source through the enclosure inlet and into the sealed enclosure to submerge the transformer assembly;
• removing the cooling fluid from the enclosure outlet, thereby circulating the cooling fluid through an interior volume of the sealed enclosure defining a transformer cooling circuit;
• redirecting the cooling fluid flowing through the transformer cooling circuit to hot spots defined within the primary winding, secondary winding, and magnetic core via one or more deflecting surfaces within the sealed enclosure.