I.S. EN IEC 60773:2021
Current
The latest, up-to-date edition.
Rotating electrical machines – Test methods and apparatus for the measurement of the operational characteristics of brushes
Hardcopy , PDF
English
25-06-2021
For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
Only cited Standards give presumption of conformance to New Approach Directives/Regulations.
FOREWORD
1 Scope
2 Normative references
3 Terms, definitions, symbols and abbreviated terms
4 Test rig specification
5 Test schedule and operating conditions
6 Determination of friction coefficient
7 Determination of voltage drop
8 Determination of brush wear
9 Determination of commutation ability of brush grades by a specific black-band test
on a DC machine
black-band figures before and after longtime critical operation
Annex A (informative) Additional information for friction coefficient measurement
Annex B (informative) Black-band zone deviation cases
Annex C (informative) Test report example
Bibliography
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