Insulation monitoring device for simultaneously monitoring network sections of an ungrounded power supply system
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United States of America Patent
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Mar 14, 2017
Grant Date -
Jul 23, 2015
app pub date -
Jan 20, 2015
filing date -
Jan 21, 2014
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Abstract
The invention relates to an insulation monitoring device for simultaneously monitoring an ungrounded power supply system comprising network sections that can be interconnected via coupling switches, comprising a signal generator for generating a measuring signal and a coupling circuit for coupling the measuring signal to the power supply system. According to the invention, the insulation monitoring device comprises a coupling circuit for each interconnectable network section to be monitored, a switchable electrical connecting element being arranged for connecting adjacent coupling circuits.
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