Current transformer and electric energy meter
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United States of America Patent
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Feb 2, 2010
Grant Date -
Jan 22, 2009
app pub date -
Aug 13, 2008
filing date -
Nov 9, 2005
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Abstract
A current transformer detects a sine-wave alternating current having a maximum effective current value I.sub.max(A.sub.rms) and a frequency f(Hz) and a half-sine-wave rectified current having a maximum peak value I.sub.peak(A.sub.op) and a frequency f(Hz) in a primary winding, consisting of at least one magnetic core with one turn of primary winding and at least one multiple turns of secondary winding to which a detecting resistor is connected.
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