This standard is applicable to newly manufactured instrument transformers with analogue or digital secondary signals used for measuring, protection, and control.
In the world of high-voltage electrical engineering, precision and safety are paramount. The devices responsible for measuring current and voltage—known as instrument transformers (Current Transformers or CTs, and Voltage Transformers or VTs)—are the eyes and ears of the power grid.
The official document is formally titled: "Instrument transformers – Part 1: General requirements"
Addresses fire hazard mitigation, corrosion resistance, and protection against internal arc faults. iTeh Standards Significant Updates (2023 Edition) The latest version, IEC 61869-1:2023
