This paper introduces the indicators for surge arrester condition assessment based on the leakage current analysis. Maximum amplitude of fundamental harmonic of the resistive leakage current, maximum amplitude of third harmonic of the resistive leakage current and maximum amplitude of fundamental harmonic of the capacitive leakage current were used as indicators for surge arrester condition mon...

The present paper investigates the effects of the trapezoidal teeth labyrinth seal on the leakage amount in gas turbines. The influences of increasing the number of teeth from 1 to 6 with step 1 and the tip clearance s=0.5 to 7.5 mm on the leakage flow at different pressure ratios of PR=1.5, 2 and 2.5 are examined, comprehensively. The analysis is performed numerically using a Finite-Volume...

Domestic Wastewater Treatment Plant (DWWTP) type 1 and DWWTP 2 were being evaluated. is located in Sembir area while Tambakrejo which are both Sleman Regency, Special Region of Yogyakarta (Daerah Istimewa or DIY), Indonesia. The emphasis this research to choose the manhole material has least leakage soil, influent discharge performance wastewater treatment quality effluent. method used measure ...

The existing dynamic monitoring methods of low-voltage distribution network leakage detection device have been unable to meet the needs in China. Therefore, a method based on Internet Things technology is proposed. Based introduction sensor sensing technology, installed obtain operation data and preprocess it with noise reduction normalization. At same time, statistical analysis partial dischar...

The clinical details of two patients with benign mediastinal teratomata are presented. Both patients developed inflammation of the root of the neck, the first after a small dose of radiotherapy and the second after a larger dose of radiotherapy and exploration of the thoracic inlet. In both cases, exploration of the inflamed area was followed by persistent discharge of fluid which was sterile o...

High k turbulence, up to 30 cm(-1), can be measured using the two dimensional CO2 laser phase contrast imaging system on LHD. Recent hardware improvements and experimental results are presented. Precise control over the lens positions in the detection system is necessary because of the short depth of focus for high k modes. Remote controllable motors to move optical elements were installed, whi...