Results 21 to 30 of about 7,540 (299)

Analysis of Backup Protection Action of a Transformer Caused by Improper Implementation of Voltage Regulation Measures [PDF]

E3S Web of Conferences, 2021
It is an effective measure for power enterprises to improve the voltage level of the system by raising and lowering the tap position of the main transformer.
Chen Yu, Ding Hongcheng, Zhang Junwei, Ding Ganghui, Cui Jun, Hu Shengzhi   +5 more
doaj   +1 more source

High-frequency transformer winding model with adequate protection

, 2023
High local electric field intensity in transformer windings originating from transient signals is one of the reasons for transformer failures. Due to the integration of renewable energy sources into the power grids and the increased number of transients,
Lekić, A. (author), Nasirpour, F. (author), Heidary, Amir (author), Ghaffarian Niasar, M. (author), Popov, M. (author)   +4 more
core   +1 more source

Differential Protection Scheme for Power Transformer Protection

, 2021
Power transformers are normally protected by differential protection relays. Differential protection is the main protection used for protecting power transformers from internal faults only. External faults have the same effect on the two sets of current transformers used for differential protection.
Kaustubh Sonar, Chetan Bobade, Shrikant Chavate   +2 more
openaire   +2 more sources

A new scheme of zero-sequence overcurrent protection of converter transformer based on zero-mode inrush current characteristics in station area

Energy Reports, 2022
Under the development trend of AC/DC hybrid power grids, converter transformers are indispensable as AC/DC conversion equipment, whose safety and stability are particularly important.
Yuanlin Pan, Zhichang Liu, Xin Yin, Wei Xi, Xianggen Yin, Binyan Liu   +5 more
doaj   +1 more source

Thermal field modeling and characteristic analysis based on oil immersed transformer

Frontiers in Energy Research, 2023
Oil-immersion transformer plays an important role in the operation of power system, and its reliable operation is the basis of the safe and economic operation of power system.
Chao Gao, Lijun Huang, Yuhui Feng, Erya Gao, Zhongqing Yang, Kai Wang   +5 more
doaj   +1 more source

Improving the Protection of Step-Down Transformers by Utilizing Percentage Differential Protection and Scale-Dependent Intrinsic Entropy

Entropy
Transformer operations are susceptible to both internal and external faults. This study primarily employed software to construct a power system simulation model featuring a step-down transformer.
Chia-Wei Huang, Chih-Chiang Fang, Wei-Tai Hsu, Chih-Chung Yang, Li-Ting Zhou   +4 more
doaj   +1 more source

Low-frequency transformer protection method based on sinusoidal fitting residuals of differential currents

International Journal of Electrical Power & Energy Systems
Offshore wind power low-frequency transmission system locally presents 100% power electronics and both sides are controlled system, by the influence of bilateral power electronic power control strategy, offshore wind power low-frequency transmission ...
Shuping Gao, Zhe Quan, Xinyu Wu, Guobing Song, Chenqing Wang   +4 more
doaj   +1 more source

Issues in integrating existing multi-agent systems for power engineering applications

, 2005
Multi-agent systems (MAS) have proven to be an effective platform for diagnostic and condition monitoring applications in the power industry. For example, a multi-agent system architecture, entitled condition monitoring multi-agent system (COMMAS ...
Catterson, V.M., Davidson, E.M., McArthur, S.D.J.   +2 more
core   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

FEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Valosin‐containing protein counteracts ATP‐driven dissolution of FUS condensates through its ATPase activity in vitro

FEBS Letters, EarlyView.
Biomolecular condensates formed by fused in sarcoma (FUS) are dissolved by high ATP concentrations yet persist in cells. Using a reconstituted system, we demonstrate that valosin‐containing protein (VCP), an AAA+ ATPase, counteracts ATP‐driven dissolution of FUS condensates through its D2 ATPase activity.
Hitomi Kimura, Shin‐ichi Tate, Kyota Yasuda   +2 more
wiley   +1 more source