Method and apparatus for high frequency common mode (L-G) phenomena and associated affect on ESP and mechnical run life

A common mode line-to-ground filter is disclosed which includes but is not limited to a resistor, capacitor and a ground. The common mode line to ground filter is connected on a high side of a step-up transformer. A low side of the step-up transformer is connected to a variable frequency drive that...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Grande, III, Salvatore F, Shipp, David D
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A common mode line-to-ground filter is disclosed which includes but is not limited to a resistor, capacitor and a ground. The common mode line to ground filter is connected on a high side of a step-up transformer. A low side of the step-up transformer is connected to a variable frequency drive that provides a semi-sinusoidal voltage waveform. The common mode line to ground filter generates a filtered sinusoidal waveform from the output of the step-up transformer. The filtered sinusoidal voltage waveform is supplied via an electrical cable to an electrically submersible pump deployed downhole.