Analysis of high voltage shunt capacitor bank on reduced capacity: The case of RRVPNL power grid

2013 ◽  
Author(s):  
Om Prakash Mahela ◽  
Sheesh Ram Ola
Keyword(s):  
High Voltage ◽  
Capacitor Bank ◽  
Power Grid ◽  
Shunt Capacitor

scholarly journals System-based testing of a voltage differential protection scheme for shunt capacitor bank

2020 ◽  
Vol 6 ◽  
pp. 243-259
Author(s):  
Senthil Krishnamurthy ◽  
Ryan Jones ◽  
Manduleli Alfred Mquqwana
Keyword(s):  
Capacitor Bank ◽  
Differential Protection ◽  
Protection Scheme ◽  
Shunt Capacitor

UHV AC and DC Coordinated Operation Techniques Based on Continuous Simulation

2015 ◽  
Vol 713-715 ◽  
pp. 1347-1350
Author(s):  
Yu Fei Rao ◽  
Lin Lin Yu
Keyword(s):  
Theoretical Analysis ◽  
High Voltage ◽  
Power Grid ◽  
Double Pole ◽  
Continuous Simulation ◽  
Operation Techniques ◽  
Load Mode ◽  
Typical Method ◽  
Ultra High Voltage

In the process of China's ultra high-voltage (UHV) construction, Henan UHV power grid is the important part. Summer great load mode of Henan power gird is chosen as the typical method. In the background of completing Nanyang UHV extension project, based on single pole running and double pole running of Hami-Zhengzhou UHVDC project respectively, it is simulated and analyzed. The results indicate that power grid cannot maintain stability when single pole block fault or double pole block fault occurs. Through theoretical analysis and simulation, under UHV AC running certain limit, HVDC latching grid is stable. Under UHV DC running certain limit, HVDC latching grid is stable. Based on continuous simulation, this paper obtained the coordinated operation of area UHV AC and DC.

scholarly journals Analysis of Various ESDD of Contaminant Insulator Flashover Acoustic Signal by Wavelet Packet

2016 ◽  
Vol 16 (6) ◽  
pp. 220-231
Author(s):  
Hong Kun Wang ◽  
Shou Xiang Wang ◽  
Jing Nie
Keyword(s):  
High Voltage ◽  
Acoustic Signal ◽  
Wavelet Packet ◽  
Power Grid ◽  
Acoustic Signals ◽  
Salt Deposit ◽  
Power Network ◽  
Large Power ◽  
Insulator Flashover

Abstract With the formation of China’s large power grid, the security of the network is particularly important. The contaminant flashover of insulators has a serious impact on the operation safety of a high voltage power network. In this paper, the acoustic signals’ characteristics of the contaminant insulators flashover are analyzed, and, as a result, the correlation between the acoustic signal and the contaminant insulator flashover is established. To experiment with contaminant insulator for three different Equivalent Salt Deposit Densities (ESDD), acoustic signals were collected separately. Then, the contaminant insulators’ acoustic signals of flashover were analyzed by wavelet packet. The characteristics of the signals were obtained, and they can be judged for contaminant flashover warning.

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