Title :
Application of multi-function motor protection relays to variable frequency drive connected motors
Author_Institution :
IEEE GE Digital Energy, Cookeville, TN, USA
Abstract :
This paper reviews the application of multi-function 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; motor protection; relay protection; variable speed drives; VFD internal motor protection functions; bypass switch; external motor protection relays; multifunction motor protection relays; variable frequency drive connected motors; Delays; Harmonic analysis; Harmonic distortion; Relays; Stators; Transient analysis; Motor Protection; Variable Frequency Drives;
Conference_Titel :
Cement Industry Conference (IAS/PCA CIC), 2015 IEEE-IAS/PCA
Conference_Location :
Toronto, ON
Print_ISBN :
978-1-4799-5578-7
DOI :
10.1109/CITCON.2015.7122600
