BS EN 60034-12:2017 – TC:2020 Edition
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Tracked Changes. Rotating electrical machines – Starting performance of single-speed three-phase cage induction motors
| Published By | Publication Date | Number of Pages |
| BSI | 2020 | 49 |
IEC 60034-12:2016 is now available as /2 which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition. IEC 60034-12:2016 specifies the parameters for eight designs of starting performance of single-speed three-phase 50 Hz or 60 Hz cage induction motors in accordance with IEC 60034-1 that: – have a rated voltage up to 1 000 V; – are intended for direct-on-line or star-delta starting; – are rated on the basis of duty type S1; – are constructed to any degree of protection and explosion protection. The main changes with respect to the previous edition are as follows: – new design letter E for extended efficiency motors, explanation of all design letters, and description of new designs NE, NEY, HE, and HEY; – addition of a reference to IEC 60079-7; – addition of a formula to calculate locked rotor current from apparent power.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 29 | National foreword |
| 34 | English CONTENTS |
| 35 | FOREWORD |
| 37 | 1 Scope 2 Normative references 3 Terms and definitions |
| 39 | 4 Symbols 5 Designation 5.1 General 5.2 Design N 5.3 Design NE 5.4 Designs NY and NEY 5.5 Design H |
| 40 | 5.6 Design HE 5.7 Designs HY and HEY 6 Design N requirements 6.1 Torque characteristics 6.2 Locked rotor current and apparent power 6.3 Starting requirements |
| 41 | 7 Design NE starting requirements 8 Designs NY and NEY starting requirements 9 Design H requirements 9.1 Starting torque 9.2 Locked rotor current and apparent power 9.3 Starting requirements |
| 42 | 10 Design HE starting requirements 11 Designs HY and HEY starting requirements Tables Table 1 – Minimum values of torques for design N |
| 43 | Table 2 – Maximum values of locked rotor apparent power for designs N and H Table 3 – Maximum values of locked rotor apparent power for designs NE and HE |
| 44 | Table 4 – External moment of inertia (J) |
| 45 | Table 5 – Minimum values of torques for design H Table 6 – Minimum values of torques for design N motors with type of protection ‘Ex eb – increased safety’ |
| 46 | Table 7 – External moment of inertia (J) for motors with type of protection ‘Ex eb – increased safety’ |
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BS EN 60034-12:2017
Rotating electrical machines – Starting performance of single-speed three-phase cage induction motors Published By Publication…
