Results 41 to 50 of about 827 (204)

Experiments on porcelain suspension insulator units [PDF]

Proceedings of the American Institute of Electrical Engineers, 1916
The author gives a very complete description of the experiments on porcelain suspension insulator units carried on at Stanford University by him and his assistants under the direction of Prof. H. J. Ryan. He explains the preliminary organization necessary, the scope of the tests, and the unusual equipment required to measure the very high resistance of
openaire   +2 more sources

Temperature Extraction Scheme for Composite Insulator Core Rod Sheath of Overhead Transmission Lines Based on Oriented Bounding Boxes

High Voltage, EarlyView.
ABSTRACT Unmanned Aerial Vehicle (UAV) inspection of overhead transmission line composite insulators allows for the rapid acquisition of large amounts of infrared images of insulators in service, which can be used to analyse their operational status. However, efficiently and accurately analysing these images remains a challenge.
Zhenan Zhou, Xinzhe Yu, Yu Deng, Chen Gu, Kun Zhang, Zheyuan Liu, Songsong Zhou, Yueneng Xu   +7 more
wiley   +1 more source

Influence of pollution chemical components on AC flashover performance of various types of insulators

High Voltage, 2019
The pollution on insulators is composed of various chemical components, which threaten the stability of external insulation. However, the existing insulation designs have not taken this issue into consideration.
Zhongyi Yang, Xingliang Jiang, Xingliang Jiang, Xingbo Han, Zhijin Zhang, Jianlin Hu   +5 more
doaj   +1 more source

Broken insulator effects on charge distribution measurement along suspension insulators

, 2020
In the early years of power system network, porcelain and glass were used and still continuously serve the overhead lines to the present time. Obviously, they can provide distinction services over a long period of time.
Jamail, N. A. M., Yousof, N. F. M., Ismail, M. N., Piah, M. A. M., Othman, N. A., Rosli, H.   +5 more
core   +3 more sources

Microplastic Dynamics in Sediment Layers of Two Ramsar‐Designated Wetlands

Water and Environment Journal, EarlyView.
ABSTRACT Little is known about the vertical and spatial dynamics of microplastics in relation to hydrology and land use, particularly in African context. This study aimed to assess the abundance, type, colour and vertical distribution of microplastics in sediment from two Ramsar‐designated wetlands, the Makuleke and Nylsvley. Sediment core samples were
Nelisiwe Ngomane, Linton F. Munyai, Ross N. Cuthbert, Pule Mpopetsi, Farai Dondofema, Rabelani Mudzielwana, Philippa Huchzermeyer, Tatenda Dalu   +7 more
wiley   +1 more source

The Influence Of Geothermal Environment To The Quality Of Porcelain Insulator: A Gap Analysis

, 2012
It is assumed that polluted environment reduces the quality of porcelain insulator in terms of leakage current. In our previous study, a correlation analysis was conducted to show the influence of geothermal area to the quality of porcelain insulator ...
Nur Syahidah Yusoff, Nur Syahidah, Yusoff, Maman Abdurachman, Djauhari, Maman Abdurachman Djauhari   +3 more
core   +1 more source

Sustainable Ethanol‐Based Reversed‐Phase Liquid Chromatography for Determination of Diltiazem pKa and Quantification with Integrated Green and White Analytical Metrics

ChemistryOpen, Volume 15, Issue 5, May 2026.
A sustainable reversed‐phase liquid chromatography method is developed for diltiazem analysis and pKadetermination. The study integrates green and white analytical chemistry frameworks to evaluate environmental impact and practicality. The Environmental, Performance, and Practicality Index is utilized as a comprehensive, holistic tool for the ...
Zehra Üstün, İlkay Konçe, Ebru Çubuk Demiralay   +2 more
wiley   +1 more source

Diagnostics of porcelain insulators by partial discharges characteristics

Известия высших учебных заведений: Проблемы энергетики
RELEVANCE of the research is in the development of a non-destructive method for diagnosing porcelain insulators of high-voltage electrical equipment based on analysis of the characteristics of partial discharges (PDs).
A. M. Gataullin, A. N. Gavrilenko, Yu. V. Piskovatskiy, A. S. Minkin   +3 more
doaj   +1 more source

Physicochemical and Thermal Evaluation of a Mixed‐Mode Greenhouse Solar Dryer for Guava (Psidium guajava L.)

Journal of Food Science, Volume 91, Issue 5, May 2026.
ABSTRACT The present study aimed to evaluate the quality and nutritional properties of guava slices dried in a greenhouse solar dryer (operated under mixed and direct modes) and an electric stove at 50°C. The results showed that mixed‐mode solar drying resulted in greater retention of vitamin C (112.60 mg/100 g), carotenoids (0.37 mg/g), and ...
Ana María Lucho‐Gómez, Alfredo Domínguez‐Niño, Paulina Guillén‐Velázquez, Juan Pablo Hernández‐Jerónimo, Mario Luna‐Flores, Octavio García‐Valladares   +5 more
wiley   +1 more source

Dynamic Bayesian Network for Continuous Health Index Estimation and Condition Assessment of Power Transformers

High Voltage, Volume 11, Issue 2, Page 385-398, April 2026.
ABSTRACT To address the limitations of traditional transformer health index (HI), such as high dependence on data integrity and inability to assist in diagnosing latent faults, this study proposes an HI prediction method based on dynamic Bayesian network (DBN).
Shuaibing Li, Hongyu Li, Yi Cui, Yongqiang Kang   +3 more
wiley   +1 more source