Patent ID: 6185116
Filing Date: 2001-02-06
Classification: H05K

Abstract:
A device for supervising the cooling of a cooling system of a valve of a high voltage converter station located on high voltage potential level and having a plurality of valve units each having at least one semiconductor component of turn-on-type and for each semiconductor component a first control unit located on high voltage potential level and controlling said component, said first control units being connected to a valve control unit located on low potential level for communication between the valve control unit and the first control units, and said device comprising temperature detecting members adapted to send values detected thereby to the first control unit associated with the respective semiconductor component for elaborating and transmitting data with respect to the temperature of the semiconductor component to an arrangement for supervising the valve located on low potential level wherein said valve has an arrangement for cooling said semiconductor components with a cooling block associated with the respective semiconductor component and adapted to absorb heat from the semiconductor component and transfer it to a cooling medium, and said temperature detecting members being arranged in each cooling block for detecting the temperature at each said semiconductor component of the valve.