PD IEC/TR 61869-102:2014

FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Introduction to ferroresonance
   oscillations
4 Single phase and three phase
   oscillations
5 Examples of ferroresonance
   configurations
6 Inductive voltage transformer
   (key parts)
7 The circuit of the single-phase
   ferroresonance configuration
8 Necessary information for
   ferroresonance investigation
9 Computer simulation of
   ferroresonance oscillations
10 Experimental investigations, test
   methods and practical measurements
11 Avoidance and suppression
   of ferroresonance oscillations
Annex A (informative) - Oscillations
        in non-linear circuits
Bibliography

Defines technical information for understanding the undesirable phenomenon of ferroresonance oscillations in medium voltage and high voltage networks in connection with inductive voltage transformers.

This part of IEC 61869 provides technical information for understanding the undesirable phenomenon of ferroresonance oscillations in medium voltage and high voltage networks in connection with inductive voltage transformers. Ferroresonance can cause considerable damage to voltage transformers and other equipment. Ferroresonance oscillations may also occur with other non-linear inductive components.