IEC 61869-13:2021 

Instrument transformers - Part 13: Stand-alone merging unit (SAMU)


Do you need a multi-user copy?




IEC 61869-13:2021 is a product standard and covers only additional requirements for stand-alone merging units (SAMUs) used for AC applications having rated frequencies from 15 Hz to 100 Hz. The digital output format specification is not covered by this document; it is standardized in IEC 61869-9 as an application of IEC 61850, which specifies the power utility communication architecture.
This document covers SAMUs having standardized analogue inputs (for example: 1 A, 5 A, 3,25 V / √3 or 100 V / √3) provided by instrument transformers compliant with relevant product standards (e.g. IEC 61869-2 to IEC 61869-5, IEC 61869-7, IEC 61869-8, IEC 61869-10, IEC 61869-11, IEC 60044-1 to IEC 60044-6, IEC 60185, IEC 60186, IEEE C57.13), and aims to convert them to the digital output compliant with IEC 61869-9. Other input and output types are outside the scope of this document. Appropriate SAMU functionality can be combined with switchgear controller functionality defined in IEC 62271-3 or other IED functionality defined in IEC 60255 (all parts).
Cyber security requirements are outside the scope of this document and are covered by the IEC 62351 series.
IEC 61869-13:2021 is to be used in conjunction with IEC 61869-9:2016, Digital interface for instrument transformers, and IEC 61869­6:2016, Additional general requirements for low-power instrument transformers, which, in turn, are based on IEC 61869-1:2007, General requirements.

Look inside

Additional information

Publication typeInternational Standard
Publication date2021-02-03
Available language(s)English/French
TC/SCTC 38 - Instrument transformersrss
ICS17.220.20 - Measurement of electrical and magnetic quantities
Stability date  2023
File size8043 KB

The following test report forms are related:

Share your publications

Learn how to share your publications with your colleagues, using networking options.

Payment information

Our prices are in Swiss francs (CHF). We accept all major credit cards (American Express, Mastercard and Visa), PayPal and bank transfers as form of payment.

Keep in touch

Keep up to date with new publication releases and announcements with our free IEC Just Published email newsletter.

Contact customer services

Please send your enquiry by email or call us on +41 22 919 02 11 between 09:00 – 17:00 CET Monday to Friday.