1、Electric Power Industry Standard of the Peoples Republic of ChinaDL/T866-2004The Guide for Selection and Calculation ofCurrent Transformers and VoltageTraasformersCHINA ELECTRIC POWER PRESSBEIJING,2012DL/T866一2004Contents1SC0pe2 Norpative Refepences13 Terms,Definitions and Symbols.3.1 Terms and Defi
2、nitions of Current Transformers.I3.2 Terms and Definitions of Voltage Transformers.833Symb0l水l04 General Principle of Current Transformer Applications124.1 Basic Characteristics and Applications124.2 Configuration of the current Transformer.124.3 Selection of Primary Parameters.134.4 Selection of th
3、e Secondary Parameters.135 Current Transformer for Measurement.145.1 Selection of Types and Rated Parameters.14S.2 Selecti0n0 f Accuracy Cla55eSlS5.3 Selection and calculation of the Secondary Burdep.176 Current T1 ansformer for Pr0 tecti0nl86.1 Performance Requirements.1862 Type Selectionl96.3 Sele
4、ction of Rated Parameters.206.4 Accuracy Classes and Error Limit.216.5 Checking Calculation of Performance Under a Steady State.226.6 Secondary Burden Calculation.257 Class TP Current Transformer for Protections257.1 Basic Calculation Formula for Transient Characteristics of Current Transformers257.
5、2 Parameters of Class TP Current Transformers.267.3 Error Limits and Specifications of class TP Current Transformers.277.4 Application of Class TP Current Transformers.287.5 Performance Calculation of Class TP Current Transformers.308Voltage Transformer328.1 classification and Application328.2 Confi
6、guration and wiring.348.3 Selection of Primary Voltage358.4 Selection of Secondary Winding and Toltage.358.5 Accuracy Classes and Error Limits.368.6 Selection and Calculation of the Secondary Winding Capacity.378.7 Special Issues Concerning the Voltage Transformer.39Appendix A(Informative)Transient Characteristics of Class TP Current Transformers.41I
