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Hi gang. Please contact me OFF LIST if you have any questions.<br><br>
Dan Lennox asked me to post this to the list:<br><br>
<blockquote type=cite class=cite cite="">I have been working with Xantrex
customer support for the last couple of months, concerning an issue when
a XW-6048 inverter is connected to a wind turbine and allows alarmingly
high battery voltage.<br><br>
The inverter Grid Support Volts is set to 55v, and should sell at or
around this voltage. However I have seen issues where the inverter is not
selling and allows the battery voltage to get alarmingly high (>60v).
It would have gone higher (and I have seen 63v) except that my diversion
controller kicks in and diverts power, stopping the voltage
increase.<br><br>
This situation occurs typically under low wind conditions and it seemed
to take about 15 seconds for the inverter to wake up and load the wind
turbine. When the inverter did 'kick in' it put a 60amp load onto
the turbine, which caused it to slow down, quickly lowering the
battery voltage and the inverter stops selling - causing the whole cycle
to happen over again!<br><br>
I just heard from an Xantrex customer support engineer that the XW
inverter software has a built in 20 second delay (de-bouncing time they
called it) once the Grid Support Voltage is reached, regardless of how
high the voltage may get.<br><br>
Xantrex has agreed to work on a firmware upgrade that will allow SELL to
occur when BATTV=GSV+4V and this should be available in a few
weeks.<br><br>
Dan Lenox</blockquote></body>
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