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AssigneeUTILX Corporation
InventorsJun Guo, Wen Shu, Oscar E. Morel
Estimating the term…
The charge value of a partial discharge pulse in an electrical cable is provided by analyzing the frequency spectrum of the propagated pulse in a spectrum analyzer 21 to generate sets of spectrum signals, each including a magnitude and a frequency of a component of the pulse. A laptop computer has a processor, receives the spectrum signals, and has one or more application computer programs operable to perform the calculations of Equations 2-6, finds the bandwidth and energy of the spectrum signals from which the computer programs derive unknown time domain parameters including the maximum value of the pulse and the time interval of the pulse at half its maximum value. With those parameters, the program reconstructs a time domain signal of the pulse and integrates that signal to provide the charge value of the partial discharge.
A method for measuring the charge of a partial discharge (PD) pulse comprising the steps of:
A method for measuring the charge of a partial discharge (PD) pulse in an electrical cable while said cable online and part of an electrical energy distribution system, comprising the steps of:
An apparatus for method for measuring the charge of a partial discharge (PD) pulse in an electrical cable online as part of an electrical energy distribution system, comprising:
Dependencies are inferred from the claim text.