Upgrading power system protection to improve safety, monitoring, Protection, and control

Author

Hill, Jeff ; Behrendt, Ken

Author_Institution

Georgia-Pacific, Atlanta, GA

fYear

2008

fDate

22-27 June 2008

Firstpage

77

Lastpage

87

Abstract

One large Midwestern paper mill is resolving an arc-flash hazard (AFH) problem by installing microprocessor-based (muP) bus differential protection on medium-voltage switchgear and selectively replacing electromechanical (EM) overcurrent relays with muP relays. In addition to providing critical bus differential protection, the muP relays will provide analog and digital communications for operator monitoring and control via the power plant data and control system (DCS) and will ultimately be used as the backbone to replace an aging hardwired load-shedding system.

Keywords

arcs (electric); current transformers; fault diagnosis; load flow; paper mills; power plants; power system management; power system measurement; power system protection; relay protection; switchgear; Midwestern paper mill; VAR power flow information; analog communications; arc-flash hazard problem; control system; current transformers; digital communications; electromechanical overcurrent relays; low-impedance bus differential protection scheme; medium-voltage switchgear; microprocessor-based bus differential protection; operator monitoring; plant power management system; power plant data; power system protection upgrading; switchgear breaker performance; Communication system control; Control systems; Digital relays; Hazards; Monitoring; Paper mills; Power system protection; Power system relaying; Protective relaying; Safety;

fLanguage

English

Publisher

ieee

Conference_Titel

Pulp and Paper Industry Technical Conference, 2008. PPIC 2008. Conference Record of 2008 54th Annual

Conference_Location

Seattle, WA

ISSN

0190-2172

Print_ISBN

978-1-4244-2524-2

Electronic_ISBN

0190-2172

Type

conf

DOI

10.1109/PAPCON.2008.4585829

Filename

4585829