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Homepage>BS Standards>29 ELECTRICAL ENGINEERING>29.160 Rotating machinery>29.160.01 Rotating machinery in general>BS EN 60034-12:2017 - TC Tracked Changes. Rotating electrical machines Starting performance of single-speed three-phase cage induction motors
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immediate downloadReleased: 2020-02-25
BS EN 60034-12:2017 - TC Tracked Changes. Rotating electrical machines Starting performance of single-speed three-phase cage induction motors

BS EN 60034-12:2017 - TC

Tracked Changes. Rotating electrical machines Starting performance of single-speed three-phase cage induction motors

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Standard number:BS EN 60034-12:2017 - TC
Released:2020-02-25
ISBN:978-0-539-08941-7
Status:Tracked Changes
DESCRIPTION

BS EN 60034-12:2017 - TC


This standard BS EN 60034-12:2017 - TC Tracked Changes. Rotating electrical machines is classified in these ICS categories:
  • 29.160.01 Rotating machinery in general
  • 29.160.30 Motors
IEC 60034-12:2016 is now available as IEC 60034-12:2016 RLV 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.