Hello all,

I really hope that someone out there can help.

I've been trying to understand why my skystream 3.7 starts braking when it

reaches 60 RPM. When the RPM reaches 120, it really brakes. After it brakes, it always comes to a complete stop, then goes into a "waiting" period for exactly 5 minutes. After 5 minutes, it is ready to generate again, however, it begins braking again once it reaches 60 RPM and so on.

I've included a graph that demonstrates one such episode. It's showing RPM (dark blue line) and power regulation (light blue line) across time in seconds on the x-axis. I am assuming power regulation = active braking by the wind turbine. But please correct me if I am wrong

Any ideas on what could be wrong?

Thanks, Garriy

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