SYSTEM ZUM SCHUTZ VOR EISBILDUNG UND BLITZEINSCHLAG FÜR EIN WINDTURBINENBLATT
摘要
Wind turbine blade comprises a first (1) and a second (2) electric conductor extending in the longitudinal direction of the blade (25), and one or more electric heating elements (4) for heating the surface of the blade. The heating elements (4) are connected to the first and the second electric conductor. At its tip the wind turbine blade (25) is provided with a lightning receptor 5 for catching lightning, and the lightning receptor (5) is electrically connected to a third (3) conductor earthed so as to be able to carry the current from a stroke of lightning to the earth. The first and the second conductor are connected to the lightning receptor through spark gaps adjacent said lightning receptor and connected to earth through spark gaps adjacent the blade root.
申请公布号
DE60004831(T2)
申请公布日期
2004.06.17
申请号
DE2000604831T
申请日期
2000.06.20
申请人
LM GLASFIBER A/S, LUNDERSKOV
发明人
OLSEN, KAJ;MOELLER LARSEN, FLEMMING;GRABAU, PETER;ELLERMANN JESPERSEN, JOHN