Electric power monitor device with phase identification

An electric power monitor device (1) connected to an AC source (7) which supplies power to a plurality of current loops (8) includes means to configure the power measurement for different configurations of single and multiple phases. The electric power monitor device has a voltage measuring unit (12...

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Bibliographic Details
Main Authors CHING CHUANG, JI-TSONG SHIEH
Format Patent
LanguageEnglish
Published 26.06.2013
Subjects
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
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Summary:An electric power monitor device (1) connected to an AC source (7) which supplies power to a plurality of current loops (8) includes means to configure the power measurement for different configurations of single and multiple phases. The electric power monitor device has a voltage measuring unit (12), a plurality of current measuring components (13) and a processing unit (14). The current measuring components (13) include a dismountable current sensor (131a) and a phase setting unit (133a), such as a manually configurable jumper, to indicate which phase of a multi-phase system forms the current loop being measured. The device can be used with single phase systems, three phase systems, or a combination of single and multiple phase systems. A switch may be provided to change between three phase, three wire and three phase, four wire settings. Power is calculated from current and voltage measurements.
Bibliography:Application Number: GB20120004235