Differential protection used with motors, motor controllers and adjustable frequency drives: What you didn´t know!

Author

Kay, John A. ; Mazur, David C. ; Mazur, Kenneth D.

Author_Institution

Rockwell Autom., Cambridge, ON, Canada

fYear

2015

fDate

14-18 June 2015

Firstpage

1

Lastpage

9

Abstract

The application of differential protection has been shown to be effective in many applications within the Forest Product based industries. However, there are some aspects of differential protection which need special consideration. Some differential configurations may be harmful to the systems to which they were installed to protect. This paper will cover a few of the basics surrounding typical differential applications. Also highlighted are some of the risk areas which are typically overlooked when applying differential protection for certain applications.

Keywords

motor drives; motor protection; Forest product based industry; adjustable frequency drive; differential protection; motor controller; Circuit faults; Current measurement; Current transformers; Fault currents; Magnetic cores; Mathematical model; Power transformers; Core Balance Differential; Differential Protection; Differential Relay; Magnetizing Current; Motor Differential Protection; Transformer Protection;

fLanguage

English

Publisher

ieee

Conference_Titel

Pulp and Paper Industry Conference (PPIC), 2015 61st IEEE

Conference_Location

Milwaukee, WI

ISSN

0190-2172

Print_ISBN

978-1-4799-7113-8

Type

conf

DOI

10.1109/PPIC.2015.7165708

Filename

7165708