Monitoring for geomagnetic induced current flow effects using existing EMS telemetering

Author

Wrubel, Joseph N.

Author_Institution

Public Service Electric & Gas Co., Newark, NJ, USA

fYear

1991

fDate

7-10 May 1991

Firstpage

45

Lastpage

49

Abstract

During the solar magnetic disturbance (SMD) of March 13, 1989, which resulted in large-magnitude geomagnetic induced currents (GIC) in North America, it is believed that two phases of one of the generator step-up transformers at the Public Service Electric and Gas Company (PSE&G) Salem Generating Station were damaged. Subsequent to this event, a new application program was written on PSE&G´s control center energy management system (EMS) to monitor the transformers at Salem and other locations in its bulk power system for the effect of GIC flows. This monitor has successfully and accurately detected subsequent SMD-caused GIC effects in the transformers in both the Salem and Hope Creek generating stations. In turn, these measurements are used to alert the control center and generating station personnel to the hazard so that corrective action may be initiated

Keywords

electric generators; electrical faults; geomagnetism; load management; power system computer control; power system measurement; power system protection; power transformers; telemetering; EMS telemetering; GIC; USA; digital control; energy management system; generator step-up transformers; geomagnetic induced currents; monitoring; power stations; power system measurement; protection; solar magnetic disturbance; Control systems; Energy management; Geomagnetism; Medical services; Monitoring; North America; Power system management; Power system measurements; Solar power generation; Transformers;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Industry Computer Application Conference, 1991. Conference Proceedings

Conference_Location

Baltimore, MD

Print_ISBN

0-87942-620-9

Type

conf

DOI

10.1109/PICA.1991.160652

Filename

160652