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Title: Non-contact current and voltage sensing method using a clamshell housing and a ferrite cylinder

A method of measurement using a detachable current and voltage sensor provides an isolated and convenient technique for to measuring current passing through a conductor such as an AC branch circuit wire, as well as providing an indication of an electrostatic potential on the wire, which can be used to indicate the phase of the voltage on the wire, and optionally a magnitude of the voltage. The device includes a housing that contains the current and voltage sensors, which may be a ferrite cylinder with a hall effect sensor disposed in a gap along the circumference to measure current, or alternative a winding provided through the cylinder along its axis and a capacitive plate or wire disposed adjacent to, or within, the ferrite cylinder to provide the indication of the voltage.
Authors:
; ; ; ; ;
Publication Date:
OSTI Identifier:
1248871
Report Number(s):
9,322,854
13/451,524
DOE Contract Number:
EE0002897
Resource Type:
Patent
Resource Relation:
Patent File Date: 2012 Apr 19
Research Org:
INTERNATIONAL BUSINESS MACHINES CORPORATION, Armonk, NY (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
24 POWER TRANSMISSION AND DISTRIBUTION; 47 OTHER INSTRUMENTATION