Results 11 to 20 of about 212,768 (263)

Filtered Leakage Current Measurement for Various Loads

International Journal of Technology, 2021
Thepurpose of this study was to determine the link between induction voltages from various electrical loads. We used a residual current device (RCD) circuit that operates with a capacitor as a DC voltage reading tool.
Erwin Sutanto, Silvi Nurwahyuni, Riky Tri Yunardi, Guillermo Escrivá-Escrivá   +3 more
doaj   +1 more source

Dislocation-related leakage-current paths of 4H silicon carbide

Frontiers in Materials, 2023
Improving the quality of 4H silicon carbide (4H-SiC) epitaxial layers to reduce the leakage current of 4H-SiC based high-power devices is a long-standing issue in the development of 4H-SiC homoepitaxy.
Wandong Gao, Wandong Gao, Guang Yang, Yixiao Qian, Yixiao Qian, Xuefeng Han, Xuefeng Han, Can Cui, Xiaodong Pi, Xiaodong Pi, Deren Yang, Deren Yang, Rong Wang, Rong Wang   +13 more
doaj   +1 more source

Effect of the Combined Pollution of Brick Industry and Sandstorms on the Performance of High Voltage Insulators and Flashover Phenomenon

Tikrit Journal of Engineering Sciences, 2018
Recent repeated flashovers and power outage incidents in an (400/132) kV substation, located in the Ad Diwaniyah Province, have called for extensive investigations to evaluate the effect of subsequent deposition of sandstorm and free carbon particles ...
Israa Amer Dahham
doaj   +2 more sources

A Novel Transformerless Current Source Inverter for Leakage Current Reduction

IEEE Access, 2019
High-frequency common mode voltage elimination is one of the most important issues for transformerless PV grid-connected inverters. Many interesting single-phase inverter topologies have been reported to reduce the common mode voltage.
Xiaoqiang Guo, Na Wang, Jianhua Zhang, Baocheng Wang, Minh-Khai Nguyen   +4 more
doaj   +1 more source

Electrical Line Fault Detection and Line Cut-Off Equipment and Control

Journal of Control Science and Engineering, 2022
In order to locate the leakage fault location of low-voltage electrical lines, cut off the power supply of electrical lines, and ensure the safety and reliability of the power supply network, this paper proposes an electrical line leakage fault detection
Yakun Fu
doaj   +1 more source

Mapping Relation of Leakage Currents of Polluted Insulators and Discharge Arc Area

Frontiers in Energy Research, 2021
A fundamental parameter of polluted insulator online monitoring is the leakage current, which has already been shown to be well-related to the pollution discharge of insulators.
Chunhua Fang, Yuning Tao, Jianguo Wang, Can Ding, Li Huang, Mi Zhou, Yi Gu, Yali Wang   +7 more
doaj   +1 more source

Application of magnetic field detection for non-contact measurement of leakage current in low-voltage distribution network [PDF]

AIP Advances
Traditional methods for measuring leakage current typically require direct contact with the circuit, a practice that increases operational safety risks and makes it difficult to detect weak leakage currents, thus rendering leakage current measurement ...
Yujie Bai, Yibo Wang, Yang Liu, Zhe Zhao, Xinhao Lu   +4 more
doaj   +1 more source

A New Single-Phase Transformerless Current Source Inverter for Leakage Current Reduction

Energies, 2018
A new single-phase transformerless current source inverter is proposed in this paper. The proposed inverter can achieve leakage current reduction, which is crucial for the conventional current source inverter.
Xiaoqiang Guo, Jianhua Zhang, Jiale Zhou, Baocheng Wang   +3 more
doaj   +1 more source

Perancangan Alat Monitoring Arus Bocor pada Kabel 20 kV Menggunakan Filter Kalman Berbasis Internet of Things

Elektrika, 2022
One of the problems that often occurs in the use of ground cables is insulation failure. This condition can cause leakage current in the 20 kV cable on the secondary side of the transformer.
Adi Franata H Sitanggang, Yuliyanto Agung Prabowo   +1 more
doaj   +1 more source

Leakage Current Response Mechanism of Insulator String With Ambient Humidity on Days Without Rain

IEEE Access, 2019
The leakage current, which is influenced by the operating voltage, the surface contamination, and environmental variables, is one of the most basic online monitoring parameters for the surface contamination status of insulators.
Jianguo Wang, Yanjun Xi, Chunhua Fang, Li Cai, Jianping Wang, Yadong Fan   +5 more
doaj   +1 more source