Protecting NYSEG´s six-phase transmission line

Author

Apostolov, Alexander ; George, William

Author_Institution

New York State Electric & Gas Corp., NY, USA

Volume

5

Issue

4

fYear

1992

Firstpage

33

Lastpage

36

Abstract

The high phase order transmission demonstration project is described. An existing 115 kV double-circuit transmission line was electrically reconfigured into a single-circuit, six-phase transmission line for this purpose. A description is given for different computer applications used in all stages of design, operation, and postoperation analysis. The complex multirelay microprocessor-based protection system is discussed. The multirelay microprocessor protection system was tested for many typical fault combinations using a computer controlled fault simulator. Currents and voltages were calculated using the Electromagnetic Transient Program (EMTP).<>

Keywords

electrical faults; microcomputer applications; power engineering computing; power transmission lines; relay protection; 6-phase transmission lines; 93 kV; Electromagnetic Transient Program; New York State Electric and Gas Corporation; computer controlled fault simulator; currents; fault combinations; multirelay microprocessor-based protection system; voltages; Circuit faults; Computational modeling; Computer applications; Digital relays; Distributed parameter circuits; Power system protection; Power transmission lines; Protective relaying; Transmission lines; Voltage;

fLanguage

English

Journal_Title

Computer Applications in Power, IEEE

Publisher

ieee

ISSN

0895-0156

Type

jour

DOI

10.1109/67.160044

Filename

160044