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IEC 60034-12:2016 ED3

Rotating electrical machines - Part 12: Starting performance of single-speed three-phase cage induction motors

Nov 23, 2016

General information

99.60     May 22, 2024

IEC

TC 2

International Standard

29.160.01  

English  

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Revised

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Scope

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.

Life cycle

NOW

WITHDRAWN
IEC 60034-12:2016 ED3
99.60 Withdrawal effective
May 22, 2024

REVISED BY

PUBLISHED
IEC 60034-12:2024 ED4