Short-circuit indicator for electrical lines for power distribution
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United States of America Patent
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Feb 16, 2010
Grant Date -
Jan 8, 2009
app pub date -
Jun 23, 2008
filing date -
Jul 2, 2007
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A short-circuit indicator is provided for arrangement on an electrical line for electrical power distribution which includes a current transformer. The current transformer has an induction coil and an iron yoke for surrounding the electrical line to be monitored for a short-circuit current. The induction coil is seated on a base web of a U-shaped first yoke part. A second yoke part is connected in the form of a joint which can move between a closed position and an open position to one of two U-limbs of the first yoke part. The second yoke part forms a magnetic return path element for the first yoke part in the closed position. The first yoke part is split into two essentially L-shaped parts in the area of the base web to which the induction coil is fitted.
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