Isothermal calorimetric system for determining loss of power in power capacitor, has measuring unit measuring electric power consumed by regulating unit and deriving loss of power in electrical component

摘要

The system (1) has an insulated enclosure (5) defining an inner space (10) that receives a measuring cell (15) with a wall defining another inner space that receives an electrical component (20). A heat sink (25) i.e. liquefied nitrogen tank, exchanges heat with the cell. A regulating unit maintains temperature of the wall of the cell at a predetermined temperature. A measuring unit measures electric power consumed by the regulating unit and derives loss of the power in the component. The cell is connected to the heat sink by a bar (100). The bar is made of materials selected from a composite of epoxy resin and fiberglass, stainless steel, aluminum and copper. An independent claim is also included for a method for determining loss of power in an electrical component.