MONITORING APPARATUS FOR A DOUBLE-FED ASYNCHRONOUS MACHINE

MONITORING APPARATUS FOR A DOUBLE-FED ASYNCHRONOUS MACHINE

The invention relates to a monitoring apparatus for a double-fed electrodynamic asynchronous machine, comprising a stator and a rotor body held rotatably therein, the shaft of said rotor body being mounted on at least one bearing, and comprising at least one insulating layer for electrically insulat...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: HILDINGER, THOMAS, KODDING, LUDGER
Format: Patent
Sprache:eng ; fre
Schlagworte:
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
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Beschreibung
Zusammenfassung:The invention relates to a monitoring apparatus for a double-fed electrodynamic asynchronous machine, comprising a stator and a rotor body held rotatably therein, the shaft of said rotor body being mounted on at least one bearing, and comprising at least one insulating layer for electrically insulating the rotor body with respect to a zero potential. The invention is characterized by at least one contact element for tapping off an electrical voltage which is present beyond the at least one insulating layer with respect to the zero potential, and a measurement and signalling unit, which is connected to the contact elements for measuring the applied voltage and is designed to output a warning signal depending on the level of this voltage.