Voltage sensor
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United States of America Patent
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Feb 14, 1989
Grant Date -
N/A
app pub date -
Oct 27, 1986
filing date -
Nov 1, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
This invention relates to a voltage sensor for sensing a voltage on an electrically charged object such as a distribution line or the like, the sensor being disposed with an insulation space to the object. The voltage sensor includes an amplifier circuit for outputting a signal having a waveform similar to that of a displacement current inflowing from the electrically charged object via the insulation space, and a filter circuit for extracting a signal having predetermined frequencies from the output of the amplifier circuit and outputting an alternating current waveform similar to the potential of the electrically charged object.
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