LIGHTNING PROTECTION SYSTEM FOR WIND TURBINE BLADE AND WIND POWER GENERATION FACILITY, AND MONITORING METHOD FOR WIND TURBINE BLADE

A lightning protection system for a wind turbine blade, includes: a receptor disposed in a tip portion of the wind turbine blade; a leading edge protection portion made of a metal and electrically connected to the receptor and disposed so as to cover a leading edge of the wind turbine blade; a down...

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Bibliographische Detailangaben
Hauptverfasser:	Murata, Naoto, Tsumura, Yoichiro, Aoi, Tatsufumi, Yamamoto, Syusaku
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING HEATING LIGHTING MACHINES OR ENGINES FOR LIQUIDS MECHANICAL ENGINEERING OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR PRODUCING MECHANICAL POWER WEAPONS WIND MOTORS WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS
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Beschreibung
Zusammenfassung:	A lightning protection system for a wind turbine blade, includes: a receptor disposed in a tip portion of the wind turbine blade; a leading edge protection portion made of a metal and electrically connected to the receptor and disposed so as to cover a leading edge of the wind turbine blade; a down conductor connected to the receptor; at least one connecting conductor for electrically connecting the leading edge protection portion and the down conductor at a position between the receptor and a blade root in a blade spanwise direction of the wind turbine blade; and a first current sensor for measuring a current flowing through a blade tip-side portion which is a portion, of the down conductor, between a blade tip and a connection point with the at least one connecting conductor in the blade spanwise direction.