DocumentCode
1027605
Title
Static Mho Distance and Pilot Relaying
Author
Dewey, C.G. ; Mathews, C.A. ; Morris, W.C.
Author_Institution
General Electric Company
Volume
82
Issue
66
fYear
1963
fDate
6/1/1963 12:00:00 AM
Firstpage
391
Lastpage
400
Abstract
Design principles and typical circuits are described for new directional-comparison static-relaying equipment for transmission-line protection. Mho distance units, with offset-impedance supervision, are used for phase faults. The equipment is designed for use with either carrier-current or microwave communications channels, uses semiconductor circuitry throughout, and features high speed: less than 1/2 cycle for 3-phase faults and less than 1 cycle for unbalanced faults.
Keywords
Circuit faults; Coils; Distributed parameter circuits; Protection; Protective relaying; Relays; Torque; Transmission line measurements; Transmission lines; Voltage;
fLanguage
English
Journal_Title
Power Apparatus and Systems, IEEE Transactions on
Publisher
ieee
ISSN
0018-9510
Type
jour
DOI
10.1109/TPAS.1963.291369
Filename
4072810
Link To Document