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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Good thing the relay is actually a DPDT
and I have it wired so that the SB functions until I can get the overvoltage
thingy. I will ultimately rewire it. Wm., thanks for the sharp attention to
detail. - Peter</span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>
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<br clear=ALL>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Peter T. Parrish, Ph.D., President<br>
California Solar Engineering, Inc.<br>
820 Cynthia Ave., Los Angeles, CA 90065<br>
CA Lic. 854779, NABCEP Cert. 031806-26<br>
<a href="mailto:peter.parrish@calsolareng.com">peter.parrish@calsolareng.com</a>
<br>
Ph 323-258-8883, Mobile 323-839-6108, Fax 323-258-8885 </span></font><font
size=2 color=navy><span style='font-size:10.0pt;color:navy'> </span></font></p>
<p><font size=2 color=navy face=Arial><span style='font-size:10.0pt'> </span></font></p>
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<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'> re-wrenches-bounces@lists.re-wrenches.org
[mailto:re-wrenches-bounces@lists.re-wrenches.org] <b><span style='font-weight:
bold'>On Behalf Of </span></b>William Miller<br>
<b><span style='font-weight:bold'>Sent:</span></b> Friday, October 02, 2009
1:16 PM<br>
<b><span style='font-weight:bold'>To:</span></b> RE-wrenches<br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [RE-wrenches]
Overvoltage Sensor for 48V Battery Bank</span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> </span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>Peter:<br>
<br>
Excuse me if I am exhibiting my ignorance, but won't a Normally Closed relay
fault in the undesirable state?<br>
<br>
William Miller<br>
<br>
<br>
<br>
At 10:44 AM 10/2/2009, you wrote:<br>
<br>
</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I seem to have lost the email that recommended a battery
sensor that can function in a high-voltage disconnect system. We have a 48V
battery bank as part of an AC coupled Grid-Tied Battery Backup System and I
have already installed a N/C 2P relay on the output of the SB3000 inverter. So
all I need is a sensor that will provide a 12Vdc signal to the relay coil at
the HV set point.<br>
<br>
Someone was kind enough to recommend a unit and if they are reading this,
please resend your recommendation!<br>
<br>
- Peter<br>
</span></font></p>
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