Results 231 to 240 of about 1,861 (307)

Dynamic Behaviour of Bubbles in Oil Under Electrothermal Ageing

High Voltage, EarlyView.
ABSTRACT During long‐term operation of converter transformers, the internal oil–pressboard insulation undergoes irreversible degradation. Partial discharge in the weakened insulation will cause the formation of a large number of bubbles in the insulating oil.
Hongbin Wu, Zhaoyang Kang, Ze Li, Zhongyu Zhao, Shuqi Li, Fuqiang Ren, Hongshun Liu, Qingquan Li   +7 more
wiley   +1 more source

Synergic effect of dielectric barrier discharge plasma and hydrodynamic cavitation on decolorization of methylene blue. [PDF]

PLoS One
Ahadi A, Zali A, Ghorbanalilu M, Ghomi H.   +3 more
europepmc   +1 more source

Development of ± 550 kV DC GIS Basin Insulator

High Voltage, EarlyView.
ABSTRACT The basin insulator is a core component of the insulation system for ± 550 kV gas‐insulated switchgear (GIS). This paper, using a finite element method for multi‐physics simulations of electric–thermal coupling, determines a geometry suitable for the industrial production of ± 550 kV GIS basin insulators.
Shaohua Cao, Chengwei Jing, Siqiong Zhang, Zuodong Liang, Zehao Zhang, Fangwei Liang, Yong Yang, Geng Chen, Jinliang He, Chuanyang Li   +9 more
wiley   +1 more source

Plasma-enhanced electronic textiles for energy harvesting. [PDF]

Sci Adv
Lin S, Cui Z, Li H, Wang K, Li K, Zhang Q, Li Y, Du C, Hou C, Wang H.   +9 more
europepmc   +1 more source

Anisotropy in Dry‐Type Valve‐Side Bushings of Converter Transformer: Phenomena and Effects

High Voltage, EarlyView.
ABSTRACT The safe and stable working of dry‐type valve‐side bushings, important components of converter transformers, is essential. In recent years, poor design has led to several core breakdown, flashover and cracking failures. The bushing cores, composed of crepe paper and aluminium foil, exhibit significant anisotropic physical properties due to its
Gaoyi Shang, Xueyang Bai, Wanhao Shi, Jinzhong Li, Shuqi Zhang, Hao Tang, Xuandong Liu   +6 more
wiley   +1 more source

Multi-Channel Electrical Discharge Machining of Ti-6Al-4V Enabled by Semiconductor Potential Differences. [PDF]

Micromachines (Basel)
Zhu X, Wei T, Li S, Li G, Ding S.
europepmc   +1 more source

Study on Impurity Particle Detection in Transformer Oil Based on Microflow Imaging Method

High Voltage, EarlyView.
ABSTRACT The concentration of particles in transformer oil has a significant influence on its electrical performance, making oil cleanliness a critical parameter in the operation and maintenance of power transformers. However, the light obstruction (LO) method recommended by current standards has inherent limitations, including low sensitivity to ...
Chen Chen, Lijun Yang, Wu Zhao, Zhengyu Chen, Xinxi Yu, Yong Li, Ruijin Liao   +6 more
wiley   +1 more source

Assessment of electrode materials in EDM of SS316L: energy consumption, electrode wear, dielectric consumption, GHG emissions, and economic viability for sustainable development. [PDF]

Sci Rep
Ali MA, Raza MH, Ehsan S, Sana M, Farooq MU, Jawad M, Adediran AA.   +6 more
europepmc   +1 more source

About the Ageing‐Induced Modifications of Physical‐Chemical and Electrical Properties of Polyimide (PMDA‐ODA) Under Gamma Radiation and High Temperatures

High Voltage, EarlyView.
ABSTRACT This study investigates the effects of radiation‐induced ageing on the physical, chemical, mechanical and electrical properties of Poly[4,4′‐oxydiphenylene‐ pyromellitimide] (PMDA‐ODA) polyimide, a high‐performance insulation material widely used in aerospace applications.
Simone Vincenzo Suraci, Jizhu Jin, Davide Mazza, Davide Fabiani   +3 more
wiley   +1 more source

BaTiO₃-(Na_0.5Bi_0.5)TiO₃ Ceramic Materials Prepared via Multiple Design Strategies with Improved Energy Storage. [PDF]

Nanomaterials (Basel)
Deng J, Guo J, Wang T, Zhang J, Wu X, Zhang X, Vattikuti SVP, Ma Q, Rosaiah P, Zhang Q.   +9 more
europepmc   +1 more source