IEC 61869-10-2017 PDF

Full title and description

Instrument transformers - Part 10: Additional requirements for low‑power passive current transformers. This part of IEC 61869 specifies product‑specific requirements that supplement the general requirements of IEC 61869‑1 and the general requirements for low‑power instrument transformers in IEC 61869‑6, and is intended for newly manufactured low‑power passive current transformers with analogue outputs used for electrical measuring instruments and protective devices at rated frequencies from 15 Hz to 100 Hz.

Abstract

IEC 61869‑10:2017 defines the additional technical and testing requirements for low‑power passive current transformers (LPCTs), covering devices intended for measurement, protection or both, and establishes performance, marking and test criteria that supplement the IEC 61869 series general requirements. This first edition (2017) replaces the earlier IEC 60044‑8:2002 and forms part of the restructured IEC 61869 instrument transformer series.

General information

• Status: Published / Current (first edition, valid).
• Publication date: 13 December 2017.
• Publisher: International Electrotechnical Commission (IEC).
• ICS / categories: 17.220.20 (Instrument transformers).
• Edition / version: Edition 1.0 (2017).
• Number of pages: 87.

Scope

Applies to newly manufactured low‑power passive current transformers with analogue output for use with electrical measuring instruments or electrical protective devices having a rated frequency from 15 Hz to 100 Hz. Covers LPCTs used for measurement, protection and combined (multi‑purpose) applications and provides the specific requirements that must be used together with IEC 61869‑1 and IEC 61869‑6. This part is limited to passive low‑power current transformer technology (not active/digital outputs).

Key topics and requirements

• Definitions and classification of low‑power passive current transformers (LPCTs) and related terminology.
• Performance and accuracy requirements for measurement and protection use (accuracy classes and limits applicable to analogue outputs).
• Electrical tests: rated burden, temperature‑rise limits, insulation and dielectric tests, impulse and overvoltage withstand tests, and partial discharge considerations where applicable.
• Mechanical, climatic and environmental requirements applicable to intended installation conditions.
• Marking, nameplate information and documentation requirements for safe and correct application.
• Requirements for combining LPCTs with measuring and protective devices, and conditions for multi‑purpose use (measurement + protection).
• Conformance and type testing procedures specific to low‑power passive current transformers.

Typical use and users

Used by manufacturers of low‑power passive current transformers, test laboratories, utility and industrial protection & measurement engineers, procurement/specification teams and certification bodies verifying conformity of LPCT products intended for metering and protection in power systems. Also referenced by standards developers and national committees when adopting regional or national versions.

Related standards

Main related documents in the IEC 61869 series and legacy standards include IEC 61869‑1 (General requirements), IEC 61869‑6 (Additional general requirements for low‑power instrument transformers), IEC 61869‑8, IEC 61869‑9 and other part‑specific documents; IEC 61869‑10:2017 cancels and replaces IEC 60044‑8:2002. National/adopted variants (for example EN/BS adoptions) also exist.

Keywords

LPCT, low‑power passive current transformer, instrument transformer, IEC 61869, accuracy class, burden, dielectric test, impulse withstand, measurement, protection, analogue output.

FAQ

Q: What is this standard?

A: IEC 61869‑10:2017 is the part of the IEC 61869 instrument transformer series that specifies additional product requirements for low‑power passive current transformers (LPCTs), intended to be used together with IEC 61869‑1 and IEC 61869‑6.

Q: What does it cover?

A: It covers technical, performance and testing requirements for LPCTs with analogue outputs at rated frequencies from 15 Hz to 100 Hz, for measurement and/or protection applications, plus marking and documentation obligations.

Q: Who typically uses it?

A: Manufacturers, test laboratories, utilities, protection and metering engineers, procurement/specification authors, certification and conformity assessment bodies, and standards committees referencing LPCT requirements.

Q: Is it current or superseded?

A: This is the first edition (2017) and is published/valid; it replaces IEC 60044‑8:2002. The IEC webstore lists the stability date and the document as the current edition at time of publication. Users should check national adoption pages for any later amendments or national modifications.

Q: Is it part of a series?

A: Yes — IEC 61869 is a multipart series of standards for instrument transformers; IEC 61869‑10 is one part that works in combination with IEC 61869‑1 and IEC 61869‑6 and other part‑specific documents in the series.

Q: What are the key keywords?

A: Low‑power passive current transformer, LPCT, instrument transformer, analogue output, measurement, protection, accuracy class, dielectric test, impulse withstand, IEC 61869.