DL/T 866-2004 英文版 电流互感器和电压互感器选择及计算导则

ICS27.100
F21
Rec0rdNo.13612-2004
DL
Electric Power Industry Standard of the People's Republic of China
DL/T866-2004
The Guide for Selection and Calculation of
Current Transformers and Voltage
Transformers

Issue Date:March 9,2004
Implementation Date:June 1,2004
Issued by the National Development and Reform Commission of the People's Republic of China

1 Scope
This guide has specified the methods for selection and calculation of current transformers and voltage
transformers used in electric power projects,including the requirements on performance of transformers for
protection and measurement,selection of types and parameters of transformers and the relevant calculation
methods.This guide mainly purports to specify the secondary requirements of current transformers and voltage
transformers.
This guide is applicable to conventional AC current transformers,electromagnetic voltage transformers,
capacitor voltage transformers,auxiliary current transformers and auxiliary voltage transformers,but is not
applicable to electronic transformers with low level output,converters exclusively used within the measuring
and protection devices,DC current transformers,exclusively-used AC operation transformers and transformers
specially designed for laboratory.
2 Normative References
The following normative documents contain provisions which,through reference in this text,constitute
provisions of this guide.For dated references,subsequent amendments (excluding the contents of errata)to,or
revision of,any of these publications do not apply.However,parties to agreements based on this guide are
encouraged to investigate the possibility of applying the most recent editions of the normative documents
indicated below.For undated references,the latest edition of the normative document referred to applies.
GB 1207 Inductive Voltage Transformers (IEC 60044-2:2003,Instrument Transformers-Part 2:
Inductive Voltage Transformers,MOD)
GB 1208 Current Transformers (IEC 60044-1:2003,Instrument Transfomers-Part 1:Current
Transformers,MOD)
GB 16847 Requirements for Protective Current Transformers for transient performance (identical with
IEC60044-6:1992)
GB/T 4703 Capacitor Voltage Transformers (equivalent to IEC 60186:1987)
DL/T 725 Specification of Current Transformer for Electrical Power for Order
DL/T 726 Specification of Voltage Transformer for Electrical Power for Order
IEC 60044-1 AMD 1-2000 Instrument transformers-Part 1:Curment transformers;Amendment 1
IEEE Standard C37.110-1996 Guide for the Application of Current Transformers Used for Protective
Relaying Purposes

3 Terms,Definitions and Symbols
3.1
Terms and Definitions of Current Transformers
For current transformers,this guide has used the relevant terms and definitions contained in GB 1208,GB
16847,together with relevant terms contained in IEC 60044-1.

投稿会员：芳华