Bender Gmbh & Co Kg

Dirk Pieler

Oliver Schaefer

Joachim Wagner

The invention relates to a method and a device () for localizing an insulation fault in an operating electrical equipment () connected to a power supply system (). Fundamental function blocks of the invention are an electric monitoring device (), which identifies an insulation fault and communicates a respective fault time to an identifying device () via a communication channel (), said identifying device () identifying a faulty operating electrical equipment () by electrical equipment of a turning-on/-off signal progress characteristic to the particular operating electrical equipment ().

Method and device for localizing an insulation fault in an operating electrical equipment connected to a power supply system

The invention relates to an insulation monitoring device and to a method for conforming-to-standards monitoring of an insulation resistance of an ungrounded single-phase or multi-phase power supply system having at least two active conductors. According to the invention, the insulation monitoring device comprises a voltage monitoring circuit for permanently registering the conductor voltage to ground potential for at least one active conductor. If an excess voltage is detected on an active conductor, the voltage monitoring circuit generates a shut-down signal so as to shut down the power supply system.

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Gruenberg, Germany

Dirk Pieler