IEC 61869-2-2012 PDF

Full title and description

St IEC 61869-2: Instrument transformers — Part 2: Additional requirements for current transformers. This part of IEC 61869 gives supplementary technical requirements, performance criteria and test procedures specific to inductive current transformers intended for use with measuring instruments and/or protective devices. It is written to be used in conjunction with IEC 61869-1 (general requirements) and replaces earlier IEC 60044-series documents.

Abstract

IEC 61869-2:2012 specifies additional requirements for inductive current transformers with rated frequencies from 15 Hz to 100 Hz, covering accuracy, burden, insulation and transient performance, test methods and marking. The standard cancels and replaces IEC 60044-1 and IEC 60044-6 (first editions and amendments) and introduces updated requirements for transient behaviour and harmonics performance; it is intended to be read together with IEC 61869-1:2007.

General information

• Status: Published / Current (stability date indicated by publisher).
• Publication date: 18 September 2012.
• Publisher: International Electrotechnical Commission (IEC).
• ICS / categories: 17.220.20 — Measurement of electrical and magnetic quantities.
• Edition / version: Edition 1.0 (2012).
• Number of pages: 140 (publisher copy); some national/adopted versions show different pagination.

Scope

This part of IEC 61869 applies to newly manufactured inductive current transformers intended for use with electrical measuring instruments and/or electrical protective devices having rated frequencies from 15 Hz to 100 Hz. It covers performance classes, accuracy with specified burdens, insulation and thermal requirements, transient response and test procedures specific to current transformers; it is to be used in conjunction with IEC 61869-1 (general requirements). The publication cancels and replaces IEC 60044-1 and IEC 60044-6.

Key topics and requirements

• Accuracy classes and performance limits for measurement and protection applications (including specified burden conditions).
• Requirements for rated frequency range (15 Hz to 100 Hz) and rated primary/secondary quantities.
• Insulation, thermal ratings and dielectric tests appropriate to current transformers.
• Transient performance requirements and tests (to assess saturation and accuracy under DC offsets and transient conditions).
• Saturation characteristics, magnetic performance and limits for core geometry and materials.
• Type and routine tests, sampling procedures and sequence of tests for production and verification.
• Marking, documentation and installation instructions relevant to safe and correct use.
• Reference to IEC 61869-1 for general requirements, terminology and common test methods.

Typical use and users

Primary users include power utilities, transformer and instrument manufacturers, protection and metering engineers, test laboratories and certification bodies. The standard is used when specifying, designing, testing, procuring and commissioning current transformers for measurement and protection in power systems and industrial installations.

Related standards

IEC 61869-2 is part of the IEC 61869 series (instrument transformers). Related parts include IEC 61869-1 (general requirements), IEC 61869-3 (inductive voltage transformers), IEC 61869-6 and IEC 61869-9 (digital interface and other parts). The standard also replaces earlier IEC 60044-series documents and is often referenced alongside applicable EMC, insulation and power system testing standards.

Keywords

current transformer, instrument transformer, accuracy class, burden, transient performance, saturation, dielectric test, rated frequency, IEC 61869, measurement transformer, protection transformer, type tests, routine tests.

FAQ

Q: What is this standard?

A: IEC 61869-2:2012 is the part of the IEC 61869 series that specifies additional requirements and tests for inductive current transformers used with measuring instruments and protective devices.

Q: What does it cover?

A: It covers performance and accuracy classes, burden conditions, insulation and thermal requirements, transient behaviour and required type/routine tests for inductive current transformers rated for 15 Hz to 100 Hz, to be used alongside IEC 61869-1.

Q: Who typically uses it?

A: Utilities, transformer and instrument manufacturers, protection and metering engineers, conformity assessment and test laboratories — anyone specifying, designing, testing or procuring current transformers for measurement or protection.

Q: Is it current or superseded?

A: As published by IEC in 2012, IEC 61869-2:2012 is the current edition (edition 1.0) and it replaced the earlier IEC 60044-1 and IEC 60044-6 documents; the publisher shows a stability indication for the document. Users should confirm national or adoption updates for their region.

Q: Is it part of a series?

A: Yes — IEC 61869-2 is part of the IEC 61869 series (instrument transformers). It is intended to be used with IEC 61869-1 (general requirements) and other parts of the series covering voltage transformers, digital interfaces and additional specialised requirements.

Q: What are the key keywords?

A: Current transformer, instrument transformer, accuracy class, burden, transient performance, saturation, dielectric test, rated frequency, IEC 61869.