BS EN 61869-6:2016

FOREWORD
1 Scope
2 Normative reference
3 Terms and definitions
4 Normal and special service conditions
5 Ratings
6 Design and construction
7 Tests
601 Information to be given with enquiries,
    tenders and orders
Annex 6A (normative) - LPIT frequency response
         and accuracy requirements for harmonics
Annex 6B (informative) - Transient performances
         of low-power current transformers
Annex 6C (informative) - Transient performances of
         low-power voltage transformers
Annex 6D (informative) - Test circuits
Annex 6E (informative) - Graph explaining the accuracy
         requirements for multi-purpose low-power current
         transformer
Bibliography
Annex ZA (normative) - Normative references to
         international publications with their
         corresponding European publications

Explain only additional general requirements for low-power instrument transformers (LPIT) used for a.c. applications having rated frequencies from 15 Hz to 100 Hz covering MV, HV and EHV or used for d.c. applications.

IEC 61869-6:2016(E) is a product family standard and covers only additional general requirements for low-power instrument transformers (LPIT) used for a.c. applications having rated frequencies from 15 Hz to 100 Hz covering MV, HV and EHV or used for d.c. applications. This product standard is based on IEC 61869-1:2007, in addition to the relevant product specific standard. This part of IEC 61869 does not cover the specification for the digital output format of instrument transformers. This part of IEC 61869 defines the errors in case of analogue or digital output. The other characteristics of the digital interface for instrument transformers are standardised in IEC 61869-9 as an application of the standards, the IEC 61850 series, which details layered substation communication architecture. This part of IEC 61869 considers additional requirements concerning bandwidth. General Requirements; however, the reader is encouraged to use its most recent edition. This first edition of IEC 61869-6 cancels and replaces the relevant parts of IEC 60044-7, published in 1999, and of IEC 60044-8, published in 2002.

This publication is to be read in conjunction with IEC 61869-1:2007