IEC TR 61869-100:2017
Current
The latest, up-to-date edition.
Instrument transformers - Part 100: Guidance for application of current transformers in power system protection
Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users
English
20-01-2017
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
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