Method and apparatus for high frequency common mode (L-G) phenomena and associated affect on ESP and mechnical run life
US11043882B2 · kind B2 · utility
0Cited by
3References
13Claims
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Key dates
| Filing date | Jan 2, 2020 |
| Grant date | Jun 22, 2021 |
| Priority date | — |
| Expiry date | Jan 2, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P27/04
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.