仪表变压器.电流变压器

标准编号：BS EN 60044-8-2002

提出单位：BSI

起草单位：BSI

发布日期：2002年

实施日期：20021004

主      题：电流互感器 变压器 电气工程 电压互感器 定义 测试 规范(验收) 仪表用变压器 

中国标准分类号：L17

国际标准分类号：17_220_20

摘      要：This part of IEC 60044 applies to newly manufactured electronic current transformers havingan analogue voltage output or a digital output, for use with electrical measuring instrumentsand electrical protective devices at nominal frequencies from 15 Hz to 100 *** Additional requirements due to the bandwidth are considered. The accuracy requirements on harmonics aregiven in annex *** 12 covers the accuracy requirements that are necessary for electronic currenttransformers for use with electrical measuring *** 13 covers the accuracy requirements that are necessary for electronic currenttransformers for use with electrical protective relays, and particularly for forms of protection inwhich the prime requirement is to maintain the accuracy up to several times the rated *** required, the transient accuracy of an electronic current transformer during fault is also givenin this *** current transformers intended for both measurement and protection should complywith all the clauses of this standard and are called multipurpose electronic *** transformer technology can be based on optical arrangements equipped with electricalcomponents, on air-core coils (with or without a built-in integrator), or on iron-core coils withintegrated shunt used as a current-to-voltage converter, alone or equipped with *** analogue output, the electronic current transformer may include the secondary signalcable. Examples of electronic current transformer technologies using air-core coils and ironcorecoils with integrated shunt are given in annex *** digital output, this standard takes into account a point-to-point connection from theelectronic transformer to electrical measuring instruments and electrical devices (see annex B).Some information has been added in order to ensure the compatibility of this point-to-point linkwith the overall system of communication in the substation, thus allowing data exchangebetwe