Results 111 to 120 of about 74,955 (336)

Research on the variation of dielectric properties of oil‐paper insulation for power equipment over a wide temperature range

High Voltage
The main part of oil‐immersed power equipment is oil‐paper insulation. At lower ambient temperatures, transformer oil will become viscous. As a result, compared to those at room temperature or operating temperature, the frequency domain dielectric ...
Mingze Zhang, Muhe Yu, Wen Zhou, Yilin Liang, Shengjie Lei, Yunbo Shi, Limin Qu   +6 more
doaj   +1 more source

Research on welding defect examination technique based on phased array ultrasonic for high voltage transformer oil tank welds [PDF]

E3S Web of Conferences
Oil tank of high voltage transformer plates. During welding and operation, defects such as incomplete fusion, incomplete penetration , air holes and cracks may be produced which influence the integrity and density of the welds and the whole tank.
Shi Lei, Qi Xiao, Li Xinhui, Hao Chenggang, Chai Fangsen, Han Dongxu, Yang Le, Li Guang   +7 more
doaj   +1 more source

The influence of magnetite nano particles on the behavior of insulating oils for pulse power applications [PDF]

, 2011
The effects of the addition of magnetite nanoparticles on the breakdown strength of three insulating liquids have been examined. The liquids considered are: a mineral transformer oil; a synthetic ester liquid, Midel 7131, and a specialist high ...
Given, M, Lehr, J.M., Macgregor, Scott, Mcglone, Phillip, Timoshkin, Igor, Wang, Tao, Wilson, Mark   +6 more
core  

Streamer evolution arrest governed amplified AC breakdown strength of graphene and CNT colloids

, 2018
The present article experimentally explores the concept of large improving the AC dielectric breakdown strength of insulating mineral oils by the addition of trace amounts of graphene or CNTs to form stable dispersions.
Chattopadhyay, Ankur, Dhar, Purbarun, Harikrishnan, A R, Maganti, Lakshmi Sirisha   +3 more
core   +1 more source

INVESTİGATİON OF CARBON GAS İN OİL TRANSFORMERS

, 2022
Vahid Bodurov Vahid Bodurov, Maryam Giyasi Atrafi Maryam Giyasi Atrafi   +1 more
openalex   +1 more source

Functionalised B‐Cu@F‐Ag@Au trimetallic nanomaterials with long term stability for rapid and highly sensitive in situ SERS detection of furfural in transformer oil [PDF]

, 2022
Yu Lei, Changding Wang, Weiping Kong, Mingliang Wang, Xinyuan Zhang, Nima Abdolmaleki, Caisheng Wang, Weigen Chen, Fu Wan   +8 more
openalex   +1 more source

Laser‐Induced Microfabrication of Carbon Nanostructure: Processing Mechanism and Application for Next‐Generation Battery Technology

Advanced Functional Materials, EarlyView.
The article reviews laser‐processed carbons from various precursors, processing mechanism and their application in advanced batteries. The laser process is chemical free, fast, and scalable, enabling improved battery performance and stability for Li, Na, and Zn battery technologies.
Sujit Deshmukh, Shaista Nouseen, Martin Pumera   +2 more
wiley   +1 more source

Analyzing the influence of ZnO nanoparticles on transformer oil using dissolved gas analysis

e-Prime: Advances in Electrical Engineering, Electronics and Energy
Transformer oil-based nanofluids have attracted considerable attention in recent years due to their improved thermal and dielectric properties, which are essential for the efficient and reliable operation of power transformers.
Abhijeet Lal, Anup Mishra, Anupam Agrawal, Rounak Kumar Tamrakar, Nagendra Tripathi, Sunil Kumar Chouhan   +5 more
doaj   +1 more source

OCTOID: A Soft Robotic System Featuring Programmable Shape Morphing and Dynamic Structural Coloration

Advanced Functional Materials, EarlyView.
Inspired by octopuses, actuating legs based on soft materials are fabricated with programmed chiroptical properties and mechanical behaviors to achieve dynamic color modulation and reversible shape morphing, and these legs are developed into a modular OCTOID system.
Seung Hui Han, Seok‐In Lim, Ki‐Hyun Ryu, Sang Seok Lee, Dong‐Gue Kang, Jahyeon Koo, Kwang‐Un Jeong, Shin‐Hyun Kim, Dae‐Yoon Kim   +8 more
wiley   +1 more source

A Novel Fault Diagnosis Method for a Power Transformer Based on Multi-Scale Approximate Entropy and Optimized Convolutional Networks

Entropy
Dissolved gas analysis (DGA) in transformer oil, which analyzes its gas content, is valuable for promptly detecting potential faults in oil-immersed transformers.
Haikun Shang, Zhidong Liu, Yanlei Wei, Shen Zhang   +3 more
doaj   +1 more source