AN110: Bond Tester Helps Protect Wind Turbines from Lightning
GENEVA, OH, October 10, 2015
Lightning strikes are a leading cause of damage to wind turbines even though they are designed with a lightning arrestor system that conducts the electricity from the tip of the blade, through the nacelle and down the tower to ground. A damaged turbine must be repaired before it can be returned to service generating electricity. Part of the repair includes replacing portions of the lightning arrestor system and verifying that it measures less than the specified resistance all while hanging in the air. This application notes describes a unique solution to the problem that makes it easier to perform this test with equipment that weighs far less than the alternatives.