Results 31 to 40 of about 293 (157)

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, Fucun Huang, Danyi Chi, Yanan Wang, Jiyang Kang, Dan Zhao   +5 more
doaj   +1 more source

Condition Monitoring and Fault Diagnosis Model of Pole Mounted Circuit Breaker Based on Multi‐Source Heterogeneous Cross Modal Information Fusion

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, Zhenyu Ma, Dong Han, Gongming Qiu   +3 more
wiley   +1 more source

Modeling and analysis of very fast transient overvoltages in high voltage gas insulated substations

, 2018
W systemach elektroenergetycznych dla celów przesyłowych i dystrybucyjnych szerokie zastosowanie znalazły stacje izolowane gazem SF6 (ang. Gas Insulated Substations – GIS).
Pająk, P., Raczek, R.
core   +1 more source

Spectral Characteristics and Evolution Mechanism of Silicon Rubber Surface Discharge Under Thermal Ageing Condition

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, Liankang Zhang, Beibei Sun, Lu Liu, Guochang Li, Shengtao Li, Yanhui Wei   +6 more
wiley   +1 more source

Nanocrystalline based Mitigation Technique for Very Fast Transient over Voltages in Gas Insulated Substations

, 2021
: in gas insulated substations, issue of very fast transient over voltages is very familiar problem because of its effects on live ultra-high voltage equipment.
et. al., R.Durga Rao,
core  

Magnetic and electric antennas synergy for partial discharge measurements in gas-insulated substations: Power flow and reflection suppression

, 2023
One of the main difficulties in measuring partial discharges (PD) in gas-insulated substations (GIS) is the overlapping of pulses at the sensor's location, which distorts the pulse resolution and the charge estimation. This research presents a new method
Mier Escurra, C., Lathouwers, A.G.A. (author), Mor, A. R., Mier Escurra, C. (author), Mor, A. R. (author), Lathouwers, A.G.A., Vaessen, P.T.M., Vaessen, P.T.M. (author)   +7 more
core   +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., Mergos John A., Dervos Constantine T.   +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, Jie Guo, Chengbo Hu, Fengbo Tao, Tianxi Xie, Yang Xu, Jun Jia   +6 more
doaj   +1 more source

Integrated Design of 12 kV Intelligent Ring Main Unit With Multi‐Model Fusion and Fault Diagnosis Method

Engineering Reports, Volume 8, Issue 1, January 2026.
This article proposes an integrated design method for a 12 kV intelligent ring main unit and constructs a fault diagnosis and isolation model. Firstly, building an integrated hardware platform can significantly improve perception speed and fusion potential.
Rongrong Shan, Jieyun Qiu, Dong Han
wiley   +1 more source

Interference Analysis of Very Fast Transient Overvoltages in Gas-Insulated Substations Using a Hybrid Algorithm

Sukkur IBA Journal of Emerging Technologies
The 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, Hafiz Muhammad Azib Khan, Abdul Mueed, Kamran Liaqat Bhatti, Syed Safdar Raza, Muhammad Siddique   +5 more
doaj   +1 more source