METHOD FOR MONITORING THE FUNCTION OF A ROTATING ELECTRIC MACHINE AND MONITORING SYSTEM FOR CARRYING OUT SAID METHOD
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
N/A
app pub date -
Sep 4, 2012
filing date -
Mar 8, 2010
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A method is provided for monitoring the function of a rotating electric machine, operating between 20 and 500 MVA, which includes a rotor, surrounded concentrically by a stator, the rotor and the stator having rotor and stator lamination elements made from sheets layered and pressed in the axial direction to form a composite and pressed by electrically insulated tension bolts passing through the rotor and stator lamination elements in the axial direction and insulated with respect to the lamination elements. Simple and reliable monitoring of the insulation of the tension bolts is achieved since the tension bolt insulation is electrically measured continuously during operation of the machine, the tension bolts each being set to a predetermined potential with respect to the associated lamination element by a voltage source, and the current flow through the voltage source and/or through the respective tension bolt being measured and evaluated.
First Claim
Other Claims data not available
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
- 1 Citation Count
- G01R Class
- 4.69 % this patent is cited more than
- 12 Age