New lightning sensor alerts operators to strikes

A lightning sensor has been developed in Denmark which alerts wind turbine operators to strikes. This gives the operator an opportunity to stop the machine and prevent damage to the control panel or electronic system, say the system's developers. The device was invented by the maintenance unit of the Danish utility association, Danske Elværkers Forening, power company SEAS, Aalborg University and Jomitek ApS. A trial series of 36 sensors has been mounted on a range of Danish turbines, including the offshore wind farm at Vindeby.