Patent ID: 7994424
Filing Date: 2011-08-09
Classification: H01B

Abstract:
1. A high voltage system, comprising: a high voltage direct current valve; a liquid fluid cooling system for cooling the valve; a high voltage bushing for transferring high voltage and high current from the fluid cooled high voltage direct current valve, said high voltage bushing comprising an insulating body surrounding an electrical conductor electrically connectable to a connector of said high voltage direct current valve, wherein said electrical conductor of said high voltage bushing comprises a cooling duct arranged for cooling the bushing utilizing a circulating gaseous fluid; and a heat exchanger connected to the cooling duct and adapted to cool the circulating gaseous fluid, wherein the heat exchanger is connected to the cooling system of the high voltage direct current valve and adapted to receive cooling water from and to return heated cooling water to the cooling system of said high voltage direct current valve.