DocumentCode
1175062
Title
A Study on the Improved Performance of Half-LENS-Half-MHO Relays
Author
Li, M.S. ; Cheng, T.C. ; Wu, C.Y.
Author_Institution
Nanjing Automation Research Institute
Issue
12
fYear
1984
Firstpage
3538
Lastpage
3544
Abstract
MHO type directional impedance relay has been widely used in HV and EHV systems for many years, but its misoperation under certain fault conditions has been a major problem. One such instance is that relays on unfaulted phases will misoperate during a close-in S-L-G fault with fault resistance. The other is the misoperation of MHO relay during a reverse fault with fault resistance.
Keywords
Digital relays; Impedance; Power & Energy Society; Power system analysis computing; Power system modeling; Power system protection; Power system relaying; Protective relaying; Transactions Committee; Voltage;
fLanguage
English
Journal_Title
Power Apparatus and Systems, IEEE Transactions on
Publisher
ieee
ISSN
0018-9510
Type
jour
DOI
10.1109/TPAS.1984.318384
Filename
4112477
Link To Document