Misleading fault indications [RE-wrenches]
William Miller
wrmiller at charter.net
Thu Feb 28 23:21:07 PST 2008
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Colleagues:
We have been installing a number of off-grid systems which include the
Outback GFI breaker assemblies. This is multi-pole breaker has one 0.5 amp
pole which is connected between the ground and neutral busses. This 0.5
amp pole replaces the wire that usually bonds the ground and negative
busses together.
I wonder if removing this bonding wire causes another problem. That
problem is illustrated in the following link Click on the second case,
"Misleading ground fault indication:"
http://mpandc.com/case_studies/ground_fauilt/ground_fault.html
I am interested if anyone else sees this problem or has wondered about
this. I am hoping I am just seeing it wrong. If I'm right, there are some
serious implications. I appreciate your opinions on this.
William Miller
-- _________________________________
William Miller
Miller Power and Communications
Voice :805-438-5600 Fax: 805-438-4607
email: wrmiller at mpandc.com
http://mpandc.com
License No. C-10-773985
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