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DTSTAMP:20250321T171035Z
UID:B4BAB495-FCF1-4479-B007-303647C2A139
DTSTART;TZID=America/Los_Angeles:20250320T114500
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DESCRIPTION:A large percentage of all power line caused wildfire ignitions 
 involve broken conductors. One idea to quickly detect broken conductors an
 d de-energize the falling conductor before hitting the ground will be pres
 ented. The basic principle is based on the concept of connection impedance
  between two points in the power system. This method requires simple point
  to point communications\, to calculate the connection impedance. If the p
 ower line is not broken\, the connection impedance is nearly equal to the 
 line impedance. If the power line is broken\, the connection impedance is 
 significantly increased\, and its value is mainly related with the load eq
 uivalent impedance. A very small load current change after the power line 
 is broken\, can trigger the calculation of connection impedance. Hence\, t
 his method is sensitive and theoretically applicable to detect the broken 
 conductor under transformer unloaded or lightly loaded conditions or back-
 feed conditions. This method will only detect the broken conductor between
  two points and with respect to protection coordination\, it is fully sele
 ctive.\n\nSpeaker(s): \, Jinlei Xing\n\nVirtual: https://events.vtools.iee
 e.org/m/472031
LOCATION:Virtual: https://events.vtools.ieee.org/m/472031
ORGANIZER:walmukdad@gmail.com
SEQUENCE:30
SUMMARY:Fast Broken Conductor Detection for Wildfire Prevention
URL;VALUE=URI:https://events.vtools.ieee.org/m/472031
X-ALT-DESC:Description: <br /><p class="MsoNormal" style="text-align: justi
 fy\; text-justify: inter-ideograph\;">A large percentage of all power line
  caused wildfire ignitions involve broken conductors. One idea to quickly 
 detect broken conductors and de-energize the falling conductor before hitt
 ing the ground will be presented. The basic principle is based on the conc
 ept of connection impedance between two points in the power system. This m
 ethod requires simple point to point communications\, to calculate the con
 nection impedance. If the power line is not broken\, the connection impeda
 nce is nearly equal to the line impedance. If the power line is broken\, t
 he connection impedance is significantly increased\, and its value is main
 ly related with the load equivalent impedance. A very small load current c
 hange after the power line is broken\, can trigger the calculation of conn
 ection impedance. Hence\, this method is sensitive and theoretically appli
 cable to detect the broken conductor under transformer unloaded or lightly
  loaded conditions or back-feed conditions. This method will only detect t
 he broken conductor between two points and with respect to protection coor
 dination\, it is fully selective.</p>
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