Transformers

17

Instrument Transformers’ Insulation Behavior to High-Voltage and High-Frequency Transients

A. Ibero

CONTENTS

17.1  Introduction

17.2  Possible Failure Modes

17.3  Equivalent Circuit of the Insulation of an Inverted-Type Current Transformer

17.4  Description of the Parameters of the Equivalent Circuit of an Inverted-Type Current Transformer

17.5  Equivalent Circuit of the Current Transformer Assembly: Chopped Lightning-Type Impulse Wave Test Simulator

17.6  Results Obtained

17.7  Conclusions

References

17.1  Introduction

There are three different failure modes that exist, those that can affect dielectric insulation of this type when exposed to this class of transient.

17.2  Possible Failure Modes

The initial effect of a high-voltage (HV), ...