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sklademVydáno: 2012-12-13
IEC 60034-28:2012
Rotating electrical machines - Part 28: Test methods for determining quantities of equivalent circuit diagrams for three-phase low-voltage cage induction motors
Machines électriques tournantes - Partie 28: Méthodes d'essai pour la détermination des grandeurs des schémas d'équivalence des circuits pour moteurs à induction à cage basse tension triphasés
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Anglicky/Francouzsky Hardcopy
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| Označení normy: | IEC 60034-28:2012 |
| Vydáno: | 2012-12-13 |
| Jazyk: | Anglicky/Francouzsky |
DESCRIPTION
IEC 60034-28:2012
IEC 60034-28:2012 applies to three-phase low-voltage cage induction motors of frame numbers 56 to 400 as specified in IEC 60072-1. This standard establishes procedures to obtain values for elements of single phase equivalent circuit diagrams from tests and defines standard elements of these diagrams. This edition includes the following significant technical changes with respect to the previous edition: - the formulae are now all given for equivalent star-connection equivalent circuit diagrams; - procedures for the determination of equivalent circuit parameters from a load curve test as an alternative to the reverse rotation and locked rotor tests have been added.