Study on Transient Overvoltage During Pantograph Lifting and Lowering of Intercity Train

2021 ◽  
Author(s):  
Liang Jianying ◽  
Feng Qingpeng ◽  
Zhang Yitao ◽  
Lin Yuwen ◽  
Wang Qingfeng ◽  
...  
Keyword(s):  
Transient Overvoltage

scholarly journals Modeling of 420 kV GIS Substation and Research on Very Fast Transient Overvoltage (VFTO)

2013 ◽  
Vol 5 (8) ◽  
pp. 2656-2660 ◽  
Author(s):  
Seyed Mohammad Hassan Hosseini ◽  
Zahra Bagheri ◽  
Sajede Darvishi-Niafenderi
Keyword(s):  
Fast Transient ◽  
Transient Overvoltage

A Method for Assessing Transient Overvoltage of AC/DC System Based on Deep Learning

2020 ◽  
Author(s):  
Yu Zelong ◽  
Liang Shuai ◽  
Yuan Zaiji ◽  
Cao Zhigang ◽  
Ding Renjie
Keyword(s):  
Deep Learning ◽  
Dc System ◽  
Transient Overvoltage

Transient overvoltage study and model for shell-type power transformers

1993 ◽  
Vol 8 (1) ◽  
pp. 212-222 ◽  
Author(s):  
V. Woivre ◽  
J.P. Arthaud ◽  
A. Ahmad ◽  
N. Burais
Keyword(s):  
Power Transformers ◽  
Shell Type ◽  
Type Power ◽  
Transient Overvoltage

Transient overvoltage phenomena on the control system of wind turbines due to lightning strike

2013 ◽  
Vol 57 ◽  
pp. 181-189 ◽  
Author(s):  
Jheng-Lun Jiang ◽  
Hong-Chan Chang ◽  
Cheng-Chien Kuo ◽  
Cheng-Kai Huang
Keyword(s):  
Control System ◽  
Wind Turbines ◽  
Lightning Strike ◽  
Transient Overvoltage

Characteristic Analysis on Suppressing VFTO in GIS by Ferrite

2013 ◽  
Vol 834-836 ◽  
pp. 385-389
Author(s):  
Xiang Gen Gan ◽  
Shui Ping Zhong ◽  
Sheng Wei ◽  
Dong Bao Yang
Keyword(s):  
Wave Propagation ◽  
Power Systems ◽  
Traveling Wave ◽  
Low Voltage ◽  
Characteristic Analysis ◽  
Fast Transient ◽  
Transient Overvoltage ◽  
Great Harm

When disconnecting switches were operated,Very Fast Transient Overvoltage (VFTO) did great harm to power systems and their equipments in Gas Insulated Substations (GIS). Although VFTO can be suppressed by a few of known methods, there were some problems. Low voltage simulation tests show that putting ferrite rings around a disconnecting generatrix can damp traveling wave propagation and suppress VFTO in GIS. This method is economic and practical. We had analyzed ferrite characteristics of suppressing VFTO and got hold of ways of calculating ferrite size in GIS. Investigation shows that ferrite characteristics and sizes have a great effect on suppressing VFTO.

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