IEC 60076-24:2020 

Power transformers - Part 24: Specification of voltage regulating distribution transformers (VRDT)


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IEC 60076-24:2020 applies to medium power transformers from 25 kVA up to 3 150 kVA with highest voltage for equipment up to 36 kV, or in low voltage (LV) networks with highest voltage for equipment of up to 1,1 kV equipped with voltage regulating devices. Voltage regulating distribution transformers are transformers equipped with components to control primary or secondary voltage for on-load voltage regulation purposes. The main objective of the installation of a VRDT is to regulate the LV network voltage level (i.e. 400 V), to avoid violation of the limits defined by relevant standards or regulations. The VRDT must operate properly as a step down and step up transformer. Transformers covered by this document comply with the relevant requirements set out in IEC 60076 (all parts) and, unless otherwise stated in this document, they also comply with European Standards EN 50160 and EN 50588-1.

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Additional information

Publication typeInternational Standard
Publication date2020-07-09
Available language(s)English/French, Spanish
TC/SCTC 14 - Power transformersrss
ICS29.180 - Transformers. Reactors
Stability date  2023
File size1093 KB

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