Arc-Fault Detection and Mitigation in PV Systems Industry Progress and Future Needs 2016-12-02T18:47:09+00:00

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Filename 2012NREL_PVMRW_Industry_AFCI_SAND2012-1314C1.pdf
filesize 2.07 MB
Version 1
Date added February 13, 2013
Downloaded 193 times
Category Combustion, Energy Security, Fact Sheet, Photovoltaic, Renewable Energy, Solar Energy
Tags sand2012-1314c
location SNL, Albuquerque, New Mexico
year 2012
report-id SAND2012-1314C
author Jay Johnson

Series arc-fault detectors (AFDs) are being developed to meet National Electrical Code 690.11. These devices de-energize the photo-voltaic system when an arc-fault occurs in order to prevent electrical fires. Many AFDs use AC noise on the DC side of the PV system to detect arcing conditions. This methodology accurately detects arc-faults, but leaves the PV system vulnerable to nuisance tripping from noise sources and fails to differentiate parallel and series arc-faults. A need remains for AFDs which safely handle series and parallel arc-faults, passive and prognostic arc-fault mitigation tools, and instruments for locating arc-faults after the AFD has tripped.