IEC 61869-1-2023 PDF

Full title and description

St IEC 61869-1-2023 — Instrument transformers — Part 1: General requirements. This document is the product-family (general requirements) standard for instrument transformers and defines the general performance, testing and safety requirements applicable to newly manufactured instrument transformers used for measurement, protection and control, including provisions for analogue and digital secondary signals.

Abstract

This 2023 edition (2nd) of IEC 61869-1 consolidates and updates general requirements for instrument transformers, incorporating the previous IEC 61869-6:2016 content into Part 1, extending scope to higher-voltage applications, and adding new type, routine and special test classifications as well as expanded commissioning and annex material. It also sets accuracy limits for both analogue and digital outputs and addresses bandwidth, harmonic accuracy and anti‑aliasing filter requirements.

General information

• Status: Published / Current (international standard).
• Publication date: 14 June 2023 (Edition 2.0).
• Publisher: International Electrotechnical Commission (IEC), TC 38 (Instrument Transformers).
• ICS / categories: 17.220.20 (Measurement of electrical and magnetic quantities).
• Edition / version: Edition 2.0 (2023).
• Number of pages: 285 pages.

Scope

IEC 61869-1:2023 specifies general requirements for instrument transformers intended for applications with nominal voltages above 1 kV AC or 1.5 kV DC and for DC applications, for rated frequencies from 15 Hz to 400 Hz. It is a family (product‑family) standard: for a given type of instrument transformer the product standard is this general requirements document together with the relevant specific part(s) of the IEC 61869 series. The part also addresses digital secondary interfaces and bandwidth/anti‑aliasing and harmonic performance requirements.

Key topics and requirements

• General performance and design requirements for instrument transformers (both current and voltage/potential types).
• Accuracy limits and error limits for analogue and digital secondary signals used for measurement, protection and control.
• Classification of tests: type tests, routine tests and special tests; additions and reclassification compared with the previous edition.
• Bandwidth, harmonic accuracy and requirements for anti‑aliasing filters (notably requirements in clause 5.7).
• New and expanded commissioning tests plus additional normative and informative annexes (including new annexes E, F, G and I in this edition).
• Integration and references to digital communication/interface standards for instrument transformer outputs (see relationship with IEC 61869-9 and IEC 61850 application).

Typical use and users

Used by manufacturers of instrument transformers, power utilities, protection and metering engineers, test laboratories, certification bodies and consultants responsible for selection, testing, installation and commissioning of instrument transformers in generation, transmission and distribution systems. The standard is applied when specifying transformer performance for measurement, revenue metering, protection and digital interface applications.

Related standards

Part of the IEC 61869 series (instrument transformers). Closely related parts include the product‑specific parts of IEC 61869 (e.g., other numbered parts that define requirements for particular transformer types) and IEC 61869-9 which standardises digital interface aspects as an application of the IEC 61850 horizontal standard series (communication networks and systems for power utility automation). This edition also consolidates content from IEC 61869-6 (previously a separate part).

Keywords

Instrument transformer, potential transformer, current transformer, metering, protection, accuracy, bandwidth, anti‑aliasing filter, harmonic measurement, digital interface, IEC 61869, IEC 61850, commissioning, type test, routine test.

FAQ

Q: What is this standard?

A: IEC 61869-1:2023 is the second edition of the general‑requirements part of the IEC 61869 family, covering general requirements, performance and testing for instrument transformers used for measurement and protection.

Q: What does it cover?

A: It covers design/performance requirements, accuracy limits for analogue and digital outputs, test classifications (type/routine/special), commissioning tests, bandwidth and harmonic/anti‑aliasing requirements, and normative/informative annexes that support application and testing.

Q: Who typically uses it?

A: Manufacturers, electrical utilities, protection and metering engineers, test and calibration laboratories, conformity assessment bodies and consultants specifying or verifying instrument transformer performance.

Q: Is it current or superseded?

A: It is the current (2023) edition and cancels and replaces IEC 61869-1:2007 and consolidates/replaces IEC 61869-6:2016. The IEC listing shows a stability date through 2028 for this edition.

Q: Is it part of a series?

A: Yes — IEC 61869 is a multipart product‑family (series) for instrument transformers; Part 1 is the general requirements document to be read together with the relevant specific part(s) for each transformer type. IEC 61869-9 covers aspects of digital interfaces (aligned with IEC 61850).

Q: What are the key keywords?

A: Instrument transformer, current transformer, potential transformer, accuracy, bandwidth, harmonics, anti‑aliasing, digital secondary, metering, protection, IEC 61869.