US Patent Issued to ESA Elektroschaltanlagen Grimma on May 26 for "Method and device for insulation monitoring and insulation fault location for unearthed power supply networks" (German Inventor)

ALEXANDRIA, Va., May 26 -- United States Patent no. 12,638,488, issued on May 26, was assigned to ESA Elektroschaltanlagen Grimma GmbH (Germany).

"Method and device for insulation monitoring and insulation fault location for unearthed power supply networks" was invented by Stephan Rathsmann (Potsdam, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method and device for insulation monitoring and insulation fault location in an unearthed power supply network operate without a testing current generator by using an insulation monitoring device to generate a permanent measuring voltage between a mains conductor and earth and to feed a measuring current into the network. Measuring currents are detected us...