INSTRUMENT TRANSFORMERS - PART 100: GUIDANCE FOR APPLICATION OF CURRENT TRANSFORMERS IN POWER SYSTEM PROTECTION
International Electrotechnical Committee
FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions and abbreviations
4 Responsibilities in the current transformer design
process
5 Basic theoretical equations for transient designing
6 Duty cycles
7 Determination of the transient dimensioning factor
K[td] by numerical calculation
8 Core saturation and remanence
9 Practical recommendations
10 Relations between the various types of classes
11 Protection functions and correct CT specification
Annex A (informative) - Duty cycle C - O software code
Annex B (informative) - Software code for numerical
calculation of K[td]
Bibliography
Pertains to inductive protective current transformers meeting the requirements of the IEC 61869-2 standard.
| Document Type | Standard |
| Status | Current |
| Publisher | International Electrotechnical Committee |
| Committee | TC 38 |
