reflects the industry's shift toward digitalization and the integration of renewable energy. Key updates include: Expanded Voltage & Frequency:
By following the standard, you ensure interoperability and safety.
The standard begins by defining its scope: it covers all instrument transformers intended for use in electrical power systems for measurement and protection. It also lists "Normative References"—other standards that are indispensable for the application of IEC 61869-1. This cross-referencing ensures that engineers consider related standards on insulation coordination and measuring relays. Iec 61869-1 Pdf
Unlike standards that focus only on a specific type of transformer (like low-power transformers or capacitive voltage transformers), Part 1 applies to everyone in the sector. It contains the fundamental definitions used across the entire industry. If you are designing a protection scheme or specifying equipment for a substation, you must understand the definitions provided in this document.
The standard references IEC 60060 and IEC 60071 for high-voltage tests, including: reflects the industry's shift toward digitalization and the
The standard establishes high-level technical criteria that all instrument transformers must meet to ensure grid stability and accuracy:
Defines how to select transformers based on system highest voltage (Um) and rated insulation levels. It contains the fundamental definitions used across the
is an international standard published by the International Electrotechnical Commission (IEC). Its full title is “Instrument transformers – Part 1: General requirements.”
