Iec 61869 2 Current Transformers Jun 2026

These cores ensure that protective relays receive sufficient information to trip circuit breakers during faults. IEC Webstorehttps://webstore.iec.ch IEC 61869-2:2012

The standard divides current transformers into two primary functional categories: and Protective . 1. Measuring Current Transformers iec 61869 2 current transformers

IEC 61869-2 introduces the definition more robustly. This is for applications where standard P or PR classes do not fit (e.g., specific transient requirements). It allows the user to specify the exact saturation characteristics ($K_ssc$, $T_p$, $R_ct$) without being bound by the rigid standard classes, provided both manufacturer and user agree. These cores ensure that protective relays receive sufficient

The standard covers various aspects of current transformers, including: The standard covers various aspects of current transformers,

is part of the IEC 61869 series (“Instrument Transformers”). It supersedes the old IEC 60044-1 standard.

⚠️ Does cover Low Power CTs (LPCTs) – those are in IEC 61869-10 / IEC 61869-11 .