ScholarLens Back to search
2012•Modern Electronics TechniqueRequires access

Influence of current transformer saturation on relay unit and processing method

Wenbin Zhang

Open publisher page 0 citations

Abstract

In order to analyze the influence of current transformer saturation on relay unit,by means of harmonic analysis method,steady state characteristics and transient characteristic of current transformer saturation are introduced in combination with a example of differential protection misoperation caused by current transformer saturation.The influence of residual magnetism and primary current aperiodic componenton on current transformer transient state saturation is summaried.The influence of current transformer saturation on the operation of differential protection and over current protection is analyzed.Some preventive measures such as restriction of the short-circuit current,selection of the right current transformer and reduction of the current transformer load are also discussed to reduce the influence of the current transformer saturation on relay unit.

About this research paper

What this paper is about

In order to analyze the influence of current transformer saturation on relay unit,by means of harmonic analysis method,steady state characteristics and transient characteristic of current transformer saturation are introduced in combination with a example of differential protection misoperation caused by current transformer saturation.The influence of residual magnetism and primary current aperiodic componenton on current transformer transient state saturation is summaried.The influence of current transformer saturation on the operation of differential protection and over current protection is analyzed.Some preventive measures such as restriction of the short-circuit current,selection of the right current transformer and reduction of the current transformer load are also discussed to reduce the influence of the current transformer saturation on relay unit.

Why it matters

A significance statement is not available in the OpenAlex record.

Key contribution

A contribution statement is not available in the OpenAlex record.

Method / approach

Method details are not available in the OpenAlex metadata.

Main findings

Findings are not separately available in the OpenAlex metadata.

Limitations

Limitations are not available in the OpenAlex metadata.

Applications

Application details are not available in the OpenAlex metadata.

Available abstract

In order to analyze the influence of current transformer saturation on relay unit,by means of harmonic analysis method,steady state characteristics and transient characteristic of current transformer saturation are introduced in combination with a example of differential protection misoperation caused by current transformer saturation.The influence of residual magnetism and primary current aperiodic componenton on current transformer transient state saturation is summaried.The influence of current transformer saturation on the operation of differential protection and over current protection is analyzed.Some preventive measures such as restriction of the short-circuit current,selection of the right current transformer and reduction of the current transformer load are also discussed to reduce the influence of the current transformer saturation on relay unit.

Key concepts: Current transformer, Energy efficient transformer, Delta-wye transformer, Relay, Isolation transformer, Linear variable differential transformer, Transformer, Transformer effect

Related papers

Related paper 1Related paper 2Related paper 3
Back to paper searchBrowse research topicsOriginal source
Influence of current transformer saturation on relay unit and processing method — Research Paper | ScholarLens