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File:Murray loop bridge.svg

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Summary

Description
English: Murray loop bridge for locating faults in underground cables. One end of the faulted cable is connected through a pair of resistors to the voltage source. Also a null detector is connected. The other end of the cable is shorted. The bridge is brought to balance by changing the values of RB1 and RB2, which is achieved when:

which is equivalent to:

The value of resistance Rx is proportional the the length Lx, thus the location of the fault can be calculated:

where L is the total lenght of the cable under test - a value proportional to Rg.
Source Own work
Author Zureks

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Original upload log

date/time username resolution size edit summary
16:27, 19 November 2008 User:Zureks <a href="http://upload.wikimedia.org/wikipedia/commons/3/32/Murray_loop_bridge_by_Zureks.svg"><img alt="Thumbnail for version as of 16:27, 19 November 2008" src="http://upload.wikimedia.org/wikipedia/commons/thumb/3/32/Murray_loop_bridge_by_Zureks.svg/120px-Murray_loop_bridge_by_Zureks.svg.png" width="120" height="101" border="0" /></a>310×260 22 KB {{Information |Description= |Source= |Date= |Author= |Permission= |other_versions= }}
16:25, 19 November 2008 User:Zureks <a href="http://upload.wikimedia.org/wikipedia/commons/archive/3/32/20081119162701%21Murray_loop_bridge_by_Zureks.svg"><img alt="Thumbnail for version as of 16:25, 19 November 2008" src="http://upload.wikimedia.org/wikipedia/commons/thumb/archive/3/32/20081119162701%21Murray_loop_bridge_by_Zureks.svg/120px-Murray_loop_bridge_by_Zureks.svg.png" width="120" height="111" border="0" /></a>280×260 21 KB {{Information |Description={{en|1=Murray loop bridge for locating faults in underground cables.}} |Source={{own}} |Author=<a href="/wiki/User:Zureks" title="User:Zureks">Zureks</a> |Date= |Permission= |other_versions= }} <!--{{ImageUpload|full}}--> <a href="/wiki/Category:Electric_cables" title="Category:Electric cables">Category:Electric cables</a>

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Date/TimeThumbnailDimensionsUserComment
current21:05, 15 May 2009Thumbnail for version as of 21:05, 15 May 2009310 × 260 (22 KB)Zurekscorrected position of the drawing
04:58, 29 November 2008Thumbnail for version as of 04:58, 29 November 2008310 × 260 (22 KB)BetacommandBotmove approved by: User:Yann This image was moved from Image:Murray loop bridge by Zureks.svg == Summary == {{Information |Description={{en|1=Murray loop bridge for locating faults in underground cables. One end of the faulted cable is connected

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