Results 21 to 30 of about 127 (119)
Comparison of Dielectric Recovery After Arc Burning in SF6 Gas and Its Potential Alternatives
High Voltage, EarlyView.ABSTRACT Although sulphur hexafluoride (SF6) exhibits exceptional insulating properties, it is a potent greenhouse gas. Therefore, studying alternatives to SF6 is critical for developing environmentally friendly high‐voltage electrical equipment.
Ziqi Liu +4 more
wiley +1 more source
EnergiesGas-insulated switchgear (GIS) serves as the core equipment in substations. Its partial discharge detection requires ultrasonic sensors to be precisely aligned with millimeter-level measurement points.
Yongchao Luo, Zifan Zhang, Yingxi Xie
doaj +1 more source
Calculation and protection on the lighting intruding waves of 550 kv GIS substation
The Journal of Engineering, 2018 Electromagnetic Transient Programme has been used to calculate the lightning intruding wave of 550 kV GIS substation. The effects of mode operation, surge impedance and length of cable have been considered in the process of calculation.
Dongpeng Sui +5 more
doaj +1 more source
High Voltage, EarlyView.ABSTRACT Strong wind–sand weather in Xinjiang threatens power grid safety by increasing transmission line tripping risks. Existing studies focus on sand polarization but neglect the coupled influence of high‐speed airflow and charged sand on gap discharge characteristics.
Jianghai Geng +8 more
wiley +1 more source
High Voltage, EarlyView.ABSTRACT High voltage equipment, as a core component of power systems, plays an indispensable role in ensuring the reliability of power supply through its safe and stable operation. Traditional visual defect detection for high voltage equipment, however, often relies on manual inspection and experience‐based judgement, which struggles to meet the ...
Zhenbing Zhao +7 more
wiley +1 more source
Environmental Effects of Electrically-Stressed Sulfur Hexafluoride
EPJ Web of Conferences, 2012 High Voltage (HV) equipment such as power switches, current or voltage transformers, and flexible HV transmission lines insulated by pressurized SF6 (or SF6/N2 mixtures) offer component compactness, high reliability and low maintenance demands compared ...
Palaiologopoulou Maria D. +2 more
doaj +1 more source
The electromagnetic effect study of GIS enclosure under high-frequency electromagnetic pulse
The Journal of Engineering, 2019 In gas insulated switchgear (GIS) substation, due to the operation of disconnect switch and circuit breaker, as well as short-circuit fault, SF6 will break down very rapidly.
Shu Chen +6 more
doaj +1 more source
Engineering Reports, Volume 8, Issue 4, April 2026.This figure illustrates the architecture of the PMCB fault diagnosis model with multi‐source heterogeneous cross‐modal fusion. It integrates core modules to realize high‐precision, low false‐alarm condition monitoring and diagnosis. ABSTRACT Aiming at the defects of current diagnosis methods for Primary and Secondary Integrated Pole Mounted Circuit ...
Rongrong Shan +3 more
wiley +1 more source
Sukkur IBA Journal of Emerging TechnologiesThe reliable and efficient computational approach for the cable interference in gas insulated substations (GIS) is presented. The hybrid domain decomposition method-multilevel fast multi-pole algorithm (DDM-MLFMA) is presented herein.
Muhammad Bilal +5 more
doaj +1 more source
High Voltage, Volume 11, Issue 1, Page 192-200, February 2026.ABSTRACT Surface discharge is a typical fault type in electric power equipment. High temperature in long‐term operation can easily lead to ageing of materials, resulting in changes in surface characteristics and surface discharge faults. In this paper, a method of surface discharge identification of silicon rubber (SiR) based on spectral detection ...
Yanze Han +6 more
wiley +1 more source