High voltage three phase transformer

Claim 1

A THREE-PHASE ELECTRICAL POWER TRANSFORMER COMPRISING, IN COMBINATION, A CLOSED TANK HAVING THREE HORIZONTALLY SPACED APART, HOLLOW LOWERTANK PORTIONS OPEN AT THEIR UPPER ENDS AND A HOLLOW UPPER TANK SECTION POSITIONED ABOVE AND COVERING SAID LOWER TANK PORTIONS AND HAVING THREE OPENINGS IN THE LOWER END THEREOF EACH OF WHICH REGISTERS WITH AND IS SECURED IN FLUID-TIGHT RELATION TO THE OPEN UPPER END OF ONE OF SAID LOWER TANK PORTIONS IN OPERATION AND IS REMOVABLE THEREFROM FOR SHIPMENT, SAID UPPER TANK SECTION DEFINING A HORIZONTAL HOLLOW PASSAGEWAY COMMUNICATING WITH THE INTERIOR OF SAID THREE LOWER TANK PORTIONS, AN INSULATING AND COOLING DIELECTRIC FLUID FILLING SAID LOWER TANK PORTIONS AND AT LEAST PARTIALLY FILLING SAID HORIZONTAL PASSAGEWAY, A SHELL TYPE SINGLE-PHASE CORE AND COIL ASSEMBLY INCLUDING PRIMARY AND SECONDARY COILS DISPOSED IN VERTICAL PLANES IMMERSED IN SAID FLUID WITHIN EACH OF SAID LOWER TANK PORTIONS, MEANS IN EACH LOWER TANK PORTION FOR CLAMPING SAID CORE AND COIL ASSEMBLY THEREIN INDEPENDENTLY OF SAID UPPER TANK SECTION, WHEREBY SAID LOWER TANK PORTIONS MAY BE SEPARATELY SHIPPED WITH SAID CORE AND COIL ASSEMBLIES CLAMPED IN POSITION, MEANS INCLUDIDNG ELECTRICAL CONDUCTOR MEANS IMMERSED IN SAID FLUID WITHIN SAID HOLLOW HORIZONTAL PASSAGEWAY AND MOUNTED IN SAID UPPER TANK SECTION FOR CONNECTING SAID SINGLE-PHASE COILS IN THREE-PHASE CIRCUIT RELATION AND BEING DISCONNECTABLE FROM SAID COILS FOR SHIPMENT, AND PRIMARY TANK SECTION EXARY INSULATING BUSHINGS ON SAID UPPER TANK SECTION EXTENDING INTO SAID PASSAGEWAY AND HAVING CONDUCTORS EXTENDING THERETHROUGH, ONE PRIMARY BUSHING BEING DISPOSED ABOVE EACH CORE AND COIL ASSEMBLY AND THE CONDUCTOR EXTENDING THERETHROUGH BEING CONNECTED TO SAID PRIMARY COIL, AT LEAST ONE SECONDARY BUSHING BEING DISPOSED ABOVE EACH CORE AND COIL ASSMEBLY AND THE CONDUCTOR EXTENDING THERETHROUGH BEING CONNECTED TO SAID CONDUCTOR MEANS MOUNTED IN SAID UPPER TANK SECTION.