A method suitable for positioning a
transformer substation electrical apparatus
partial discharge space belongs to the high-
voltage insulation measuring technology and application field. The aim of the invention is to adopt a method suitable for positioning a
transformer substation electrical apparatus
partial discharge space to process signals of ultra-
high frequency electromagnetic wave with improved energy accumulation function so as to avoid calculation deviation due to iterative
algorithm depending on initial values. The method of the invention comprises steps: after collecting the ultra-
high frequency electromagnetic wave signals, using the improved energy accumulation function to process the signals; drawing a
curve line of the improved energy accumulation function based on the improved energy accumulation function; confirming the
signal collecting moment of sensors; using four sensors to receive UHF signals of
partial discharge radiation and simultaneously
record at the starting time; acquiring an equation based on coordinates of a partial
discharge source and coordinates of the sensors; acquiring two independent linear equations of the partial
discharge coordinates related to unknown numbers; and acquiring two groups of results. In these two groups of results, only one result meets the no-linear equations; and the values are the coordinates of the partial
discharge source. By adopting the method provided herein, the calculation deviation due to iterative
algorithm depending on the initial values is avoided.