Patent ID: 8666688
Filing Date: 2014-03-04
Classification: G01R,G06F,G16Z

Abstract:
1. An intelligent electronic device (IED) for detecting at least one transient waveform comprising: i) at least one analog-to-digital converter circuit configured to sample at least one analog voltage channel to detect and output digital samples of voltage transients in each of a plurality of sequential waveform sample periods; ii) a waveform capture circuit configured to sample said at least one analog voltage channel and output digital samples of said at least one analog voltage channel in each of said plurality of sequential waveform sample periods; and iii) a field programmable gate array (FPGA) configured to receive the digital samples of said voltage transients output from the at least one analog-to-digital converter circuit in each of the plurality of waveform sample periods, and detect and store a single peak transient value and its associated duration value in each of said plurality of waveform sample periods.