Stephen Posted October 23, 2012 Report Share Posted October 23, 2012 Hi, We have wind vanes in bidirectional winds i.e. blows fromone direction for 6 months and then quickly changes to blow from the otherdirection for the next 6 months. As the wind vane is in the one position for 6months, when the wind direction changes are there any possible problems thatmight occur? Would the wind vane have worn down excessively and so need toreplace earlier than expected? Will the wind vane be able to move as freelyover the directions it hasn?t been reading from due to dust buildup? Thanks. Link to comment Share on other sites More sharing options...
David Carlson Posted October 26, 2012 Report Share Posted October 26, 2012 Good questions... As the 200P is a potentiometer-based sensor there are physical elements that can wear over time. We have seen this happen with pot sensors used in turbine control applications. The potentiometer can eventually wear through, and the readings will precipitously falter. Keep in mind that in this application, the sensor is almost always pointed in the same direction, and the vibrations atop the nacelle can be rather extreme. In the case you describe I don't believe there will be sensor failure on the 1 - 2 year timeframe with normal (read, not extreme) environmental conditions. On a met tower, even if the sensor points at a tradewind for half of the year, there will be some fluctuation in position, and the sensor is capable of performing well in this situation. Does that help? Link to comment Share on other sites More sharing options...
Stephen Posted October 31, 2012 Author Report Share Posted October 31, 2012 Hi David, Thanks for the reply. That is reassuring. Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.