The Closing Strategy of Vacuum Circuit Breakers to Suppress Inrush Current of Parallel Capacitor

2020 ◽  
Author(s):  
Mingxu Wang ◽  
Shouyuan Wu ◽  
Yongxin Yang ◽  
Zunxian Wang ◽  
Xiaoming Luan
Keyword(s):  
Inrush Current ◽  
Circuit Breakers ◽  
Parallel Capacitor

Electrical Stress Analysis of Switching Transients in 115 kV High Voltage Substation

2015 ◽  
Vol 781 ◽  
pp. 333-336
Author(s):  
Ratana Kem ◽  
Warunee Srisongkram ◽  
Phanupong Fuangpian ◽  
Thanapong Suwanasri
Keyword(s):  
Stress Analysis ◽  
Capacitor Bank ◽  
Circuit Breaker ◽  
Inrush Current ◽  
Circuit Breakers ◽  
Power Circuit ◽  
Electrical Stress ◽  
Transient Recovery Voltage ◽  
Recovery Voltage

This paper presents electrical stress analysis from capacitor bank switching in a 115 kV substation. The actual data of all equipment in substation are used in the simulated circuit by using ATP/EMTP program. The cases study focused on the determination of proper value of series reactor, effect of circuit breaker pole discrepancy on inrush current, line model selection and load variation. Electrical stress from energizing inrush current as well as transient recovery voltage and rate of rise of recovery voltage imposed on power circuit breaker during capacitor bank has been analyzed. The obtained results are used as guidelines for analysis of the electric stresses on substation equipment while capacitor banks are energized. Moreover, those results can be used to select the proper rating of circuit breakers to withstand the electric stresses in the transmission network.

An Identification Method of Magnetizing Inrush Current Phenomena in Distribution System

2010 ◽  
Vol 130 (4) ◽  
pp. 430-436 ◽  
Author(s):  
Naoki Dou ◽  
Atushi Toyama ◽  
Kohki Satoh ◽  
Tadashi Naitoh ◽  
Kazuyuki Masaki
Keyword(s):  
Distribution System ◽  
Inrush Current ◽  
Identification Method ◽  
Magnetizing Inrush Current

An Identification Method of Magnetizing Inrush Current Phenomena by Voltage Waveform

2012 ◽  
Vol 132 (6) ◽  
pp. 588-596
Author(s):  
Tadashi Naitoh ◽  
Keiki Takeda ◽  
Atsushi Toyama ◽  
Tatsuhiko Maeda
Keyword(s):  
Inrush Current ◽  
Voltage Waveform ◽  
Identification Method ◽  
Magnetizing Inrush Current

An Improved Identification Method of Magnetizing Inrush Current Phenomena in Distribution System

2012 ◽  
Vol 132 (3) ◽  
pp. 260-267 ◽  
Author(s):  
Tatsuhiko Maeda ◽  
Tadashi Naitoh ◽  
Atsushi Toyama ◽  
Keiki Takeda
Keyword(s):  
Distribution System ◽  
Inrush Current ◽  
Identification Method ◽  
Magnetizing Inrush Current
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