| 摘要 |
<p>The invention concerns a monitoring device for a double-fed electrodynamic asynchronous machine, having a stator and a rotor body held rotatably therein, whose shaft is mounted on at least one bearing, and at least one insulation layer for electrical insulation of the rotor body with respect to a zero potential. The invention is characterised by at least one contact element for tapping an electric voltage, which is applied with respect to the zero potential by means of said at last one insulation layer, and a measuring and signalling unit, which is connected to the contact elements for measuring the applied voltage and is designed for emitting a warning signal depending on the height of said voltage.</p> |
