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1. US20180052191 - Current sensor for measuring an alternating current

Office United States of America
Application Number 15554260
Application Date 09.03.2016
Publication Number 20180052191
Publication Date 22.02.2018
Grant Number 10545178
Grant Date 28.01.2020
Publication Kind B2
IPC
G01R 15/18
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
15Details of measuring arrangements of the types provided for in groups G01R17/-G01R29/, G01R33/-G01R33/26176
14Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
18using inductive devices, e.g. transformers
CPC
G01R 15/181
GPHYSICS
01MEASURING; TESTING
RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
15Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00 and G01R33/00 - G01R35/00
14Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
18using inductive devices, e.g. transformers
181using coils without a magnetic core, e.g. Rogowski coils
Applicants SOCOMEC
Inventors Christian Kern
Agents Davis & Bujold PLLC
Michael J. Bujold
Priority Data 15 51984 10.03.2015 FR
Title
(EN) Current sensor for measuring an alternating current
Abstract
(EN)

A current sensor provided with an electrical coil (5) made in the form of a printed circuit. Its closed contour is inscribed within a rectangle delimiting a through window (9) for passing a primary conductor (2). It comprises four rectilinear segments (TR) connected two by two by a circular sector (SC), delimited by an interior arc (10) and an exterior arc (11). It comprises, in its circular sectors (SC), additional turns (13), which extend from exterior arc (11) towards an intermediate arc (14) located between interior arc (10) and exterior arc (11). They are inserted between the main turns (12) in such a way that the spacing between two consecutive turns (12, 13) on the exterior arc (11) is equal to spacing (P) of the main turns (12) in rectilinear segments (TR) and that the average turns density is almost constant in electrical coil (5).

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