IEEE PC37.110 – IEEE Draft Guide for the Application of Current Transformers Used for Protective Relaying Purposes
Revision Standard – Active – Draft.The characteristics and classification of current transformers (CTs) used for protective relaying are described. This guide also describes the conditions that cause the CT output to be distorted and the effects on relaying systems of this distortion. The selection and application of CTs for the more common protection schemes are also addressed
