DocumentCode
3272100
Title
Application of multi-function motor protection relays to variable frequency drive connected motors
Author
Ernst, Tom
Author_Institution
GE Digital Energy, Cookeville, TN, USA
fYear
2015
fDate
14-18 June 2015
Firstpage
1
Lastpage
6
Abstract
This paper reviews the application of multifunction motor protection relays to motors that are connected by variable frequency drives (VFD). Typical VFD internal motor protection functions are reviewed to understand the required roles of external motor protection relays. Applications discussed include protection requirements when the relay is located on the source side of the VFD and the motor side of the VFD. The impact of using a bypass switch around the VFD on protection requirements is also discussed.
Keywords
motor drives; relay protection; variable speed drives; VFD internal motor protection functions; bypass switch; external motor protection relays; multifunction motor protection relays; protection requirements; variable frequency drive connected motors; Heating; Relays; Stator cores; Stator windings; Switches; Variable speed drives; Motor Protection; Variable Frequency Drives;
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.2015.7165855
Filename
7165855
Link To Document