Disconnect wind generator at tower

in most cases, turbines must be connected to some "load" (usually batteries) so as not to free wheel and tear themselves to bits. 

if you have a dump load integrated into your turbine's controller, or separately (sized appropriately) possibly with bypass switch, then even when you cutoff the current with a disconnect AFTER the controller but BEFORE batteries, the turbine will not freewheel.

some turbines have stop switches (air-x) and others furl to save themselves from high winds.

give your manual a re-read, and we will look into it when back in the office on monday.

james  Alt-E staff