IEEE C37.114-2014 - IEEE Guide for Determining Fault Location on AC Transmission and Distribution Lines

Standard

Active

Standard Details

Electrical faults on transmission and distribution lines are detected and isolated by system protective devices. Once the fault has been cleared, outage times can be reduced if the location of the fault can be determined more quickly. The techniques and application considerations for determining the location of a fault on ac transmission and distribution lines are outlined in this guide. Traditional approaches and the primary measurement techniques used in modern devices are reviewed: one- and two-terminal impedance-based methods and traveling-wave methods. Application considerations include: two- and three-terminal lines, series-compensated lines, parallel lines, untransposed lines, underground cables, fault resistance effects, and other power system conditions, including those unique to distribution systems.

Sponsor Committee	PE/PSRCC - Power System Relaying and Control
Status	Active
Board Approval	2014-12-10
History	Published Date:2015-01-30

Additional Resources Details

PAR	Approved PAR
Redline	Redline
Historical Base Standard	C37_114-2004

Working Group Details

Working Group	C37.114_WG - Revision of C37.114 Fault Location Guide
Working Group Chair	Joe Mooney
Sponsor Committee	PE/PSRCC - Power System Relaying and Control
Society	PE - IEEE Power and Energy Society
IEEE Program Manager	Erin Spiewak
Existing Standards	Superseded C37.114-2004 - IEEE Guide for Determining Fault Location on AC Transmission and Distribution Lines Electrical faults on transmission and distribution lines are detected and isolated bysystem protective devices. Once the fault has been cleared, outage times can be reduced if thelocation of the fault can be determined more quickly. This guide outlines the techniques andapplication considerations for determining the location of a fault on ac transmission and distributionlines. The document reviews traditional approaches and the primary measurement techniques usedin modern devices: one-terminal and two-terminal impedance-based methods and traveling wavemethods. Application considerations include: two- and three-terminal lines, series-compensatedlines, parallel lines, untransposed lines, underground cables, fault resistance effects, and otherrepower system conditions, including those unique to distribution systems.