Iec 618691 Pdf -

The IEC 61869 series was introduced to consolidate and modernize these requirements. It establishes definitions and general requirements that apply to all types of instrument transformers, while subsequent parts of the series address specific technologies.

This standard acts as a "Product Family Standard," meaning it provides the general framework that must be read in conjunction with specific product standards for various transformer types. It is applicable to instrument transformers used in high-voltage applications where nominal voltages exceed or 1.5 kV DC . iec 618691 pdf

Defines degrees of protection provided by enclosures. The IEC 61869 series was introduced to consolidate

: Defines limits of error for both analogue and digital secondary signals to ensure precise metering and protection. It is applicable to instrument transformers used in

IEC 61869-1 Ed. 2.0 b:2023 - Instrument transformers - Part 1

Standard range is -5 °C to +40 °C for indoor use, and -25 °C to +40 °C for outdoor use.

It sets strict limits of error for both analogue and digital outputs, ensuring precise monitoring for protection and billing.