IEC 60034-27-3:2015 

Rotating electrical machines - Part 27-3: Dielectric dissipation factor measurement on stator winding insulation of rotating electrical machines


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IEC 60034-27-3:2015 provides guidelines for the test procedures and the interpretation of test results for dielectric dissipation factor measurements on the stator winding insulation of rotating electrical machines. These guidelines are valid for rotating electrical machines with conductive slot coatings operating at a rated voltage of 6 kV and higher. This standard applies to individual form-wound stator bars and coils outside a core (uninstalled), individual stator bars and coils installed in a core and complete form-wound stator winding of machines in new or aged condition. This edition includes the following significant technical changes with respect to the previous publication IEC TR 60894:1987:
- inclusion of digital measurement of dissipation factor and capacitance;
- inclusion of limits for dissipation factor values;
- detailed description of measuring techniques; extension of scope to complete windings.

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Additional information

Publication typeInternational Standard
Publication date2015-12-16
Available language(s)English/French
TC/SCTC 2 - Rotating machineryrss
ICS29.160.01 - Rotating machinery in general
Stability date  2026
File size1558 KB

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