Specifications

The Patent Office Journal 17/12/2010
4576
(12) PATENT APPLICATION PUBLICATION (21) Application No.3964/CHENP/2010 A
(19) INDIA
(22) Date of filing of Application :25/06/2010 (43) Publication Date : 17/12/2010
(54) Title of the invention : METHOD FOR DETECTION OF CHARGE ORIGINATING FROM LIGHTNING
(51) International classification :H02G 13/00
(31) Priority Document No :PA 2007/01887
(32) Priority Date :28/12/2007
(33) Name of priority country :Denmark
(86) International Application No
Filing Date
:PCT/DK08/000443
:22/12/2008
(87) International Publication No
:WO 2009/083006
A1
(61) Patent of Addition to Application
Number
Filing Date
:NA
:NA
(62) Divisional to Application Number
Filing Date
:NA
:NA
(71)Name of Applicant :
1)VESTAS WIND SYSTEMS A/S
Address of Applicant :ALSVEJ 21, DK-8940 RANDERS SV
Denmark
(72)Name of Inventor :
1)ERICHSEN, HANS VAGN
(57) Abstract :
The invention relates to a detection apparatus of a wind turbine wherein said wind turbine comprises a down-conducting system
arranged to conduct current induced from lightning, wherein said detection apparatus comprises a charge measurement apparatus for
establishment of a charge representation, wherein said charge representation represents charge induced into said down- conducting
system by lightning, and wherein said detection apparatus further comprises an estimator for estimating deterioration induced by
lightning of one or more components in a wind turbine on the basis of said charge representation.
No. of Pages : 49 No. of Claims : 15