Patent · US Active

Apparatus and methods thereof for error correction in split core current transformers

US9964568B2 · kind B2 · utility

2Cited by
40References
17Claims
0Family size

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Inventors

Key dates

Filing dateJun 9, 2017
Grant dateMay 8, 2018
Priority date—
Expiry dateJun 9, 2037

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01R22/063
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

A self-powered power sensor (SPPS) measures electrical parameter measurements at points of interest, such as circuit breakers, machines, and the like. The SPPS which comprises of components that may require corrections, such as the errors induced by, but not limited to, the use of a split core mounted around a current carrier, and hence calibration coefficients are provided based on test, measurements and/or calculations respective of the devices. These coefficients may be stored in a database for retrieval when calibration of measurements received from a measuring device. In one embodiment at least one of the calibration coefficients is stored on SPPS.

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