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<div class="moz-cite-prefix">Hi Jeremy;<br>
<br>
I'm referring to the Clipper. It includes everything that the
regular control box MNTCB includes: rectifier, bypass/ brake
switching, but also has the voltage limiting control circuit, and
dump resistors. Midnite sells several size resistors, so I'm
waiting to find out which ohm rating is best for the XL.1 with the
24 v MS stator. <br>
Apparently, Bergey has had 4 different stators. Only the new ones
24 MS and 48 MS are compatible with the Midnite Classic's MPPT. I
don't know what date they went to the newer stators, but the old
XL.1s would need to update the stator. <br>
<br>
Mad scientist time: <br>
It might also be possible to just remove the rectifier at the
turbine, and then run the 3 phase current through a transformer,
before the Clipper to get the voltage high enough for MPPT. You'd
need to add a 3rd conductor too.... Still no way to do it without
dropping the tower.......hmmmm, time to sleep.<br>
<br>
<pre class="moz-signature" cols="72">R.Ray Walters
CTO, Solarray, Inc
Nabcep Certified PV Installer,
Licensed Master Electrician
Solar Design Engineer
303 505-8760</pre>
On 2/19/2014 7:56 PM, All Solar, Inc. wrote:<br>
</div>
<blockquote
cite="mid:EC3FEEF2-93D9-44C9-98D8-8296A74B6349@scswifi.net"
type="cite">
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<div>Ray, </div>
<div>Are you referring to Midnite's wind turbine control box,
which is what comes with the Bergey?</div>
<div>It does not include any diversion for slowing the turbine. I
questioned why they did not use the clipper, but did not really
get an answer. We have installed 2 of the Excel 1s in the last 6
months with no problems. I also believe the clipper would take
care of it, just have no experience with it yet. <br>
<br>
Jeremy Rodriguez,
<div>President<br>
<div><br>
</div>
<div>All Solar, Inc.
<div>1463 M<br>
<div>Penrose Colorado 81240</div>
<div>719-372-3808 office</div>
<div>719-372-3804 fax</div>
<div><a moz-do-not-send="true"
href="http://www.asolarelectric.com">www.asolarelectric.com</a></div>
<div><br>
</div>
<div>Sent by Jeremy's iPhone. Sorry for typos and
shorthand!</div>
</div>
</div>
</div>
</div>
<div><br>
On Feb 19, 2014, at 2:27 PM, Ray Walters <<a
moz-do-not-send="true" href="mailto:ray@solarray.com">ray@solarray.com</a>>
wrote:<br>
<br>
</div>
<div><span></span></div>
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<div>
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<div class="moz-cite-prefix">We've done some research on this,
as we're doing an XL.1 project at 12 v right now. <br>
I don't have first hand experience with the Clipper yet, but
I have over a decade of XL.1 experience and many years with
Midnite's electronics. The Clipper is exactly what is
needed. It also moves the rectifier down to the ground, and
offers a braking disconnect system to shut the turbine down
completely if needed. <br>
The Classic by itself isn't really controlling the turbine
speed, and counting on the XL,1 mechanical governing design
by itself is definitely full hardy.<br>
Unfortunately, Bergey's new staff is not really up to full
speed yet on what is needed to make their turbines work long
term. At least they've abandoned the old XL.1 controller.
Hopefully the turbine itself hasn't changed too much; I've
seen them survive some very high speed winds and direct
lightning strikes.<br>
<pre class="moz-signature" cols="72">R.Ray Walters
CTO, Solarray, Inc
Nabcep Certified PV Installer,
Licensed Master Electrician
Solar Design Engineer
303 505-8760</pre>
On 2/19/2014 1:39 PM, Chris Daum wrote:<br>
</div>
<blockquote
cite="mid:EFF56A6F9B1C4AE6B84B4A9FDBA307E4@OasisChris"
type="cite">
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<div><span class="234062720-19022014"><font color="#0000ff"
face="Arial" size="2">Hello Wrenches:</font></span></div>
<div><span class="234062720-19022014"></span> </div>
<div><span class="234062720-19022014"><font color="#0000ff"
face="Arial" size="2">We have a customer who's got one
of the Excel One wind gennies, and he's burnt up two
Classic controllers (overvoltage....the 2nd time it
got over 400V before it burnt up). Bergey's been
dragging their feet as to why this is happening;
they're saying it's probably an "upslope site" where
the RPM just gets too high, among other things.
Metering tests prove that the stator is OK.</font></span></div>
<div><span class="234062720-19022014"></span> </div>
<div><span class="234062720-19022014"><font color="#0000ff"
face="Arial" size="2">They also said that Midnite
Solar has a 'clipper' to prevent overvoltage; do any
of you have any experience with this device? It's
~$1200, and of course there is no mention of this on
Bergey's web site or in their XL.1 manual.</font></span></div>
<div><span class="234062720-19022014"></span> </div>
<div><span class="234062720-19022014"><font color="#0000ff"
face="Arial" size="2">I have several other XL.1s in
the general area, but they are on their old 24V
controller. So I am looking for more information on
anyone who's using this 'clipper'.</font></span></div>
<div><span class="234062720-19022014"></span> </div>
<div><span class="234062720-19022014"><font color="#0000ff"
face="Arial" size="2">Please feel free to contact me
off list.</font></span></div>
<div><span class="234062720-19022014"></span> </div>
<div><span class="234062720-19022014"><font color="#0000ff"
face="Arial" size="2">Thanks!</font></span></div>
<div><span class="234062720-19022014"></span> </div>
<div><span class="234062720-19022014"><font color="#0000ff"
face="Arial" size="2">Chris Daum</font></span></div>
<div><span class="234062720-19022014"><font color="#0000ff"
face="Arial" size="2">Oasis Montana Inc.</font></span></div>
<div><span class="234062720-19022014"><font color="#0000ff"
face="Arial" size="2">406-777-4309</font></span></div>
<div><span class="234062720-19022014"></span> </div>
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