Patent · US Active

Method and device for determining capacitive component parameters

US10809289B2 · kind B2 · utility

1Cited by

7References

18Claims

0Family size

Assignee

ABB Schweiz AG · CH

Inventors

Nilanga Abeywickrama · Västerås, SE
Tord Bengtsson · Västerås, SE
Jonas Hedberg · Västerås, SE

Key dates

Filing date	Feb 21, 2018
Grant date	Oct 20, 2020
Priority date	—
Expiry date	Feb 21, 2038

Classification

Technology area (CPC H)Electricity
CPC primaryH01F27/402
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A method of determining the capacitance and loss-factor of each of a plurality of capacitive components of an electrical power device, wherein the method includes: a) obtaining for each capacitive component a respective capacitance value and loss-factor value, and b) processing the capacitance values and the loss-factor values, wherein the processing involves removing a common influence of temperature on the capacitance values from the capacitance values and removing a common influence of temperature on the loss-factor values from the loss-factor values to obtain for each capacitive component a temperature-compensated capacitance value and a temperature-compensated loss-factor value.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.