Iec 618691 Pdf May 2026
The digital parts of IEC 61869 (Part 9 and 10) directly interface with IEC 61850 (Part 9-2) . A modern digital substation uses:
Because of this integration, engineers often search for "iec 618691 pdf" when trying to bridge the two worlds.
| Part | Title | Application | | :--- | :--- | :--- | | IEC 61869-1 | General requirements | Applies to all types of instrument transformers | | IEC 61869-2 | Additional requirements for current transformers | Traditional CTs | | IEC 61869-3 | Additional requirements for inductive voltage transformers | Traditional VTs | | IEC 61869-5 | Additional requirements for capacitor voltage transformers | CVTs for HV systems | | IEC 61869-9 | Digital interface for instrument transformers | Merging units and digital outputs (ties to IEC 61850-9-2) | | IEC 61869-10 | Low-power passive instrument transformers | LPITs (electronic sensors) |
Let’s assume you truly need IEC 61869-1:2024 (the latest version) or IEC 61850-8-1:2024. Here is the exact process:
Pro Tip: If you work for a utility or engineering firm, ask your internal librarian or standards committee for access. Many large organizations have an IEC site license covering all standards.
IEC 61869-1 applies to newly manufactured instrument transformers used for:
It covers transformers intended for use in:
Relationship with other parts:
If a conflict arises between Part 1 and a subsequent "product part" (like Part 2 or 3), the specific product part takes precedence.
IEC 61869 is the primary international standard covering instrument transformers — devices that step down high voltages and currents to measurable, safe levels for metering, protection, and control in electrical power systems. It supersedes the older IEC 60044 series and provides a comprehensive framework for design, testing, and performance.
To fully understand requirements for a specific device, IEC 61869-1 must be read in conjunction with other parts of the series:
The standard is a copyrighted document published by the IEC.
Disclaimer regarding "Free PDFs": Downloading copyrighted standards from unauthorized third-party websites is illegal and poses cybersecurity risks (malware embedded in PDFs). For professional engineering and compliance purposes, the official, watermarked PDF from the IEC or a national standards body (like ANSI, BSI, or DIN) should be used.
IEC 61869-1 is the international foundational standard for instrument transformers
, establishing the general requirements for newly manufactured devices used in electrical measuring and protective systems. As a "product family" standard, it serves as the base document that must be used alongside specific part standards (like Part 2 for current transformers or Part 3 for voltage transformers) to form a complete product specification. iTeh Standards Scope and Applicability The most recent edition, IEC 61869-1:2023 iec 618691 pdf
, applies to instrument transformers designed for high-voltage (HV) systems: Voltage Range: Nominal voltages higher than Frequency Range: Operates at rated frequencies from 15 Hz to 400 Hz , as well as DC applications. Covers both
secondary signals for measuring, protection, and control purposes. IEC Webstore Key Technical Revisions (2023 Edition)
The 2023 update introduced several critical shifts from the original 2007 version and earlier modular standards: Merger with IEC 61869-6: It now incorporates general requirements for Low-Power Instrument Transformers (LPITs) previously found in Part 6. Expanded Scope:
Explicitly covers equipment for applications above 1 kV AC or 1.5 kV DC. New Test Classifications: Reclassifies certain "special tests" as type tests routine tests , and introduces a new clause for commissioning tests Digital Interface Integration:
Addresses bandwidth requirements, harmonic accuracy, and anti-aliasing filters for digital outputs, often referencing the IEC 61850 series for communication protocols. IEC Webstore Core Requirements
The standard defines strict criteria to ensure safety, reliability, and precision across diverse operating environments: iTeh Standards Accuracy Classes:
Establishes core principles for limits of error in both analogue and digital signals. Environmental Durability: The digital parts of IEC 61869 (Part 9
Outlines requirements for ambient temperature, altitude, vibration, and corrosion resistance. Mechanical and Safety: Includes standards for internal arc fault protection
, gas-tightness for gas-insulated units, and degrees of protection provided by enclosures (IP/IK ratings). Insulation Levels:
Defines rated insulation levels and highest equipment voltages ( cap U sub m ) to prevent dielectric failure. ИС «МЕГАНОРМ» IEC 61869-1:2023
New customers. Your IEC benefits: Products. Just Published. IEC 61869-1:2023. Terminology and metrology. IEC 61869-1. IEC 61869-1: IEC Webstore
гост iec 61869-1-2015 трансформаторы измерительные
Yes. The IEC Webstore provides a free, searchable scope and preview (usually the first 5–10 pages) for every standard. Additionally, many manufacturers publish implementation guides that summarize the standard without violating copyright.