IEC 61921 Ed. 2.0 b:2017

Current Revision
Power capacitors - Low-voltage power factor correction banks

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Power capacitors - Low-voltage power factor correction banks

PUBLISH DATE 2017
PAGES 46

Power capacitors - Low-voltage power factor correction banks

IEC 61921:2017 is applicable to low-voltage AC shunt capacitor banks intended to be used for power factor correction purposes, possibly equipped with a built-in switchgear and controlgear apparatus capable of connecting to or disconnecting from the mains part(s) of the bank with the aim to correct its power factor.

Low-voltage power factor correction banks, if not otherwise indicated hereinafter and where applicable, comply with the requirements of IEC 61439-1 and IEC 61439-2.

This second edition cancels and replaces the first edition published in 2003. It constitutes a technical revision.

This edition includes the following significant technical changes with respect to the previous edition:

  • Numerous changes regarding verification methods to align with IEC 61439-1;
  • Modification of marking;
  • Add routine verification of rated output;
  • New Annex D with guidance on methods for temperature rise verification;
  • Update of normative references;
  • General editorial review.

Keywords: low-voltage AC shunt capacitor banks

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