Korea Electrotechnology Research Institute

Mun No Ju

Sung Man Kang

Jeong Min Woo

Jae Bok Lee

Sang Jin Kim

Kwae Hyup Nor

Ho Dong Kim

Yu Min Kim

Kyoung Joo Lee

Disclosed herein is a contactless DC electric-field sensor having improved sensitivity. The contactless DC electric-field sensor has a circuit composed of a variable capacitor and an RF generator and improves sensitivity through resonance of the circuit by connecting an inductor to the sensor.

Contactless DC electric-field sensor

Proposed is a wind turbine blade with a lightning protection receptor. The wind turbine blade with a lightning protection receptor is a technology that allows for excellent lightning capture rate for both negative and positive lightning by improving lightning measures for conventional wind turbines, which are vulnerable to positive lightning, in line with the increasing wind turbine heights for large-scale power generation and the trend toward offshore wind power, and that minimizes post-repair/supplementary measures by limiting blade damage/coating peeling due to lightning strikes to a narrow area, unlike in the conventional case where damage or peeling of the coating occurs over the entire area of a blade when struck by lightning on an edge wire inserted into the lateral inner side of the blade.

Wind turbine blade with lightning protection receptor

Growing community of inventors

Changwon-si, South Korea

Mun No Ju