I.S. EN 60034-26:2006
Current
The latest, up-to-date edition.
ROTATING ELECTRICAL MACHINES - PART 26: EFFECTS OF UNBALANCED VOLTAGES ON THE PERFORMANCE OF THREE-PHASE CAGE INDUCTION MOTORS
Hardcopy , PDF
English
01-01-2006
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.
Dates of withdrawal of national standards are available from NSAI.
National Foreword
FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Effects of unbalanced voltages on performance
3.1 Currents
3.2 Heating
3.3 Torques
3.4 Full-load speed
4 Derating of motor to prevent overheating
Annex A (informative) Determination of the symmetrical
components of the line-to-line voltages
U[1], U[2], U[3] of a three-phase system
Annex B (informative) Approximate determination
Annex ZA (normative) Normative references to international
publications with their corresponding
European publications
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