Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Guochao Qian"'
Autor:
Lijun Zhou, Yingyi Xia, Woyang Li, Yunyun Qian, Guochao Qian, Qian Lei, Qiuyue Zhu, Lei Guo, Dongyang Wang
Publikováno v:
International Journal of Electrical Power & Energy Systems, Vol 160, Iss , Pp 110131- (2024)
Dry-type on-board traction transformers have attracted considerable attention because of their lightweight and flameproof characteristics. The temperature distribution of winding areas is a critical indicator for representing operation performance. T
Externí odkaz:
https://doaj.org/article/84b84971486e4dc5acfcf4685c7e7f6e
Autor:
Hongming Ma, Guochao Qian, Jie Zhang, Jiali Chen, Fusheng Zhou, Pengfeng Qiu, Aohua Zhang, Ting Wang, Xiaofei Yao, Zhiyuan Liu
Publikováno v:
Energies, Vol 17, Iss 7, p 1623 (2024)
High-voltage switchgear is a key control and protection unit in power systems. The reliable operation of the operating mechanism is essential for the reliable opening and closing of the switchgear. This is a vital guarantee for the safety and stabili
Externí odkaz:
https://doaj.org/article/c65f8306f880434ca2f70555accb76a6
Publikováno v:
Sensors, Vol 23, Iss 24, p 9642 (2023)
To achieve omnidirectional sensitive detection of partial discharge (PD) in transformers and to avoid missing PD signals, a fiber optic omnidirectional sensing method for PD in transformers combined with the fiber Bragg grating (FBG) and Fabry-Perot
Externí odkaz:
https://doaj.org/article/8a15de39219c4b55a7db567dcfb0c899
Publikováno v:
Frontiers in Physics, Vol 10 (2022)
In this article, with an anti-resonant hollow core fiber (ARHCF), fiber-enhanced Raman spectroscopy (FERS) for trace-gas sensing in a high-concentration gas background is demonstrated for the first time. The performance of the apparatus is verified b
Externí odkaz:
https://doaj.org/article/002d9c4352104bdea9edcc2afe2e0b08
Publikováno v:
International Journal of Antennas and Propagation, Vol 2022 (2022)
Automated inspection using unmanned aerial vehicles (UAVs) is an essential means to ensure safe operations of the power grid. Defect detection for antivibration hammers on transmission lines in inspection imagery is one of the critical tasks for auto
Externí odkaz:
https://doaj.org/article/ce6cd24f848a47d0bb58ba12064c35c9
Publikováno v:
Energies, Vol 15, Iss 22, p 8489 (2022)
According to the requirements of weak current measurement in power grid, a weak current sensor with anti-low frequency interference ability is developed. The sensor adopts the principle of fluxgate detection and adds a magnetic ring on the original b
Externí odkaz:
https://doaj.org/article/2cb8f6c2d7d141e1bcb2ac2ec219eb02
Novel Gas-Sensitive Material for Monitoring the Status of SF6 Gas-Insulated Switches: Gese Monolayer
Publikováno v:
Chemosensors, Vol 10, Iss 7, p 246 (2022)
Detecting the decomposition components of SF6 insulating gas is recognized as an effective means to monitor the operating status of the SF6 insulating switch. In this paper, the adsorption characteristics of a new two-dimensional material GeSe for fi
Externí odkaz:
https://doaj.org/article/aad5cf94a35242ed84c4393788859796
Publikováno v:
Energies, Vol 15, Iss 11, p 3946 (2022)
This paper treats a parallel 12-pulse rectifier as the study subject. The influence of unbalanced terminal voltage, the triggering angle, as well as the commutation angle of a thyristor-controlled rectifier circuit are considered in switching functio
Externí odkaz:
https://doaj.org/article/3d837751f94a40539c83b4605f8bcf0f
Publikováno v:
Frontiers in Materials, Vol 7 (2020)
MoS2 has been considered a potential novel material in various fields due to its large specific surface area, high carrier mobility, and tunable electronic properties. However, with the increasing demand for sensor substrates, different strategies ha
Externí odkaz:
https://doaj.org/article/a481c55379e24b27b10cadd08c773812
Publikováno v:
Chemosensors, Vol 10, Iss 2, p 82 (2022)
A large amount of power equipment works in closed or semi-closed environments for a long time. Carbon monoxide (CO) is the most prevalent discharge gas following a fault in the components. Based on the density functional theory of first principles, t
Externí odkaz:
https://doaj.org/article/82aef74a7e4f415db21e9afc70c32d5c