Abstract: A power transformer/reactor immersed in oil including a transformer/reactor core and windings accommodated in a tank including a tank base plate and tank walls. A foundation supports the tank. An elongated continuous band forming a closed frame is arranged between the base plate and the foundation. An outer periphery of the base plate extends outside an inner periphery of the frame and thereby encloses an air volume within the frame, the base plate and foundation. The tank support reduces sound emitted from the transformer/reactor.

Abstract: Power transformer/reactor immersed in oil comprising transformer/reactor core and windings accommodated in a tank (100) comprising tank base plate (110) and tank walls (120), a foundation (500) supporting the tank. An elongated continuous band (310) forming a closed frame (300) is arranged between the base plate (110) and the foundation (500) and the outer periphery of the base plate (110) extends outside the inner periphery of the frame (300) and thereby enclosing an air volume within the frame (300), the base plate (110) and foundation (500). The tank, support reduces the sound emitted from the transformer/reactor.

Abstract: A method and system for the systematic evaluation and rating of technical equipment using a data processing device (20), which works together with at least one data memory (21) and has an input (22) and display device (23), in which, step-by-step for the particular technical equipment, at least one first data set having economically relevant input parameters and at least one second data set having technically relevant input parameters are detected and/or established. For each data set, through knowledge-based predetermined numerical and/or logical linkages and knowledge-based predetermined weighting factors specific to the equipment, the established input parameters are brought together into an economic evaluation parameter FIx and a technical evaluation parameter RIx, respectively, and from the established evaluation parameters, through knowledge-based predetermined numerical linkages and weighting factors, a single overall resulting evaluation parameter EIx is determined.