IEC Current Transformer Standards

Current transformers for frequencies 14 Hz to 100 Hz for use with electrical measuring instruments and electrical protective devices. Ratings; accuracy; tests; rating-plate and terminal markings. Appendices on guidance in application of current transformers: short-time...

This part of IEC 60044 applies to newly manufactured current transformers for use with electrical measuring instruments and electrical protective devices at frequencies from 15 Hz to 100 Hz. Although the requirements relate basically to transformers with separate...

General This part of IEC 60044 applies to newly manufactured electronic current transformers having an analogue voltage output or a digital output, for use with electrical measuring instruments and electrical protective devices at nominal frequencies from 15 Hz to 100 Hz. NOTE...

This part of IEC 60044 applies to newly manufactured electrical current transducers having an analogue voltage output or a digital output, for use with electrical measuring instruments and electrical protective devices at nominal frequencies from 15 Hz to 100 Hz. Clause 12 covers the...

This part of IEC 60044 applies to newly manufactured current transformers for use with electrical measuring instruments and electrical protective devices at frequencies from 15 Hz to 100 Hz. Although the requirements relate basically to transformers with separate...

Purpose This Handbook describes the tests to be carried out on current transformers during both stage 1 and stage 2 commissioning (TP106). The purpose of the CT commissioning tests is to prove that the equipment supplied is in accordance with requirements detailed in the design...

General This part of IEC 60044 applies to newly manufactured electronic current transformers having an analogue voltage output or a digital output, for use with electrical measuring instruments and electrical protective devices at nominal frequencies from 15 Hz to 100 Hz. NOTE...

This part of IEC 61869 is applicable to newly manufactured inductive current transformers for use with electrical measuring instruments and/or electrical protective devices having rated frequencies from 15 Hz to 100 Hz.

PURPOSE AND SCOPE This document contains the site commissioning tests to be performed on Current Transformers in National Grid (NG) substations.'

IEC 61869-2:2012 is applicable to newly manufactured inductive current transformers for use with electrical measuring instruments and/or electrical protective devices having rated frequencies from 15 Hz to 100 Hz. This International Standard is to be used in conjunction with,...

This part of IEC 61869 is applicable to newly manufactured inductive current transformers for use with electrical measuring instruments and/or electrical protective devices having rated frequencies from 15 Hz to 100 Hz.

This part of IEC 61869 is a product standard and covers only additional requirements for lowpower passive current transformers. The product standard for low-power passive current transformers comprises IEC 61869-1, together with IEC 61869-6 and this...

This International Standard is applicable to newly manufactured current transformers used for measuring, protection and/or control applications in DC Power systems with a voltage above 1 kV. The general configuration of a low power instrument transformer is described in the...

This part of IEC 61869 is applicable to inductive protective current transformers meeting the requirements of the IEC 61869-2 standard. It may help relay manufacturers, CT manufacturers and project engineers to understand how a CT responds to simplified or standardized...

The standards of this section apply to constant current transformers of the moving coil type. Standards for other types of transformers are the subjects of separate sections.

This part of IEC 61869 is a product standard and covers only additional requirements for lowpower passive current transformers. The product standard for low-power passive current transformers comprises IEC 61869-1, together with IEC 61869-6 and this...

This part of IEC 44 covers the requirements and tests, in addition to those in Chapter I of IEC 185, that are necessary for inductive current transformers for use with electrical protective schemes in which the prime requirement for the current transformers...

This part of IEC 61869 provides all requirements specific to current transformers to be used in DC applications (DCCTs), whatever the technology used. The output signal can be analogue or digital. It is applicable to newly manufactured current transformers used...