Circuit and method for preventing shunt running in electric energy measurement

This invention discloses one anti-creeping circuit of energy meter, which comprises valid computation unit and status judgment unit, wherein, the said valid value computation unit is to compute input current valid value and to output computed current into status judgment unit; the judgment unit is t...

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Bibliographic Details
Main Author ZHIJUN FAN
Format Patent
LanguageEnglish
Published 16.05.2007
Subjects
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
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Summary:This invention discloses one anti-creeping circuit of energy meter, which comprises valid computation unit and status judgment unit, wherein, the said valid value computation unit is to compute input current valid value and to output computed current into status judgment unit; the judgment unit is to receive valid unit output current valid value; comparing the current valid values and pre-set valve values and when the valid values is less than valve value requiring energy meter circuit to stop metering. This invention also discloses one energy meter anti-creeping method.
Bibliography:Application Number: CN20061162224