scholarly journals Study on circuit breaker TRV issues of UHV high series compensation lines

2019 ◽  
Vol 2019 (16) ◽  
pp. 867-871
Author(s):  
Bin Zheng ◽  
Zutao Xiang ◽  
Liangeng Ban ◽  
Hongli Jiang ◽  
Xiaotong Wang ◽  
...  
Keyword(s):  
Circuit Breaker ◽  
Series Compensation ◽  
High Series

Influence of Series Compensation Degrees on Secondary Arc Current Characteristics under the Different Series Compensation Mode

2020 ◽  
Vol 21 (1) ◽  
Author(s):  
Yadi XIE ◽  
Baina HE ◽  
Lemiao WANG ◽  
Renzhuo JIANG ◽  
Yazhe MAO ◽  
...  
Keyword(s):  
Transmission Lines ◽  
Circuit Breaker ◽  
Low Frequency ◽  
High Amplitude ◽  
Long Distance ◽  
Series Compensation ◽  
Large Capacity ◽  
Suppression Effect ◽  
Arc Current ◽  
Compensation Device

AbstractThe high compensation degree series compensation has a broad development prospects in long distance and large-capacity UHV transmission lines. But it is generating secondary arc current contains low frequency components with high amplitude when the single-phase grounding fault occurs in the series compensated transmission line, which is not conducive to rapid arc extinguishing. To solve this problem, this paper based on the mechanism of generating secondary arc by series compensation transmission lines, and using ATP – EMTP electromagnetic transient program to establish the simulation model of UHV series compensation device. And the suppression effects of small resistance short connection fault series compensation and linkage bypass series compensation measures on secondary arc current and recovery voltage under different series compensation layout mode are studied respectively. The results show that the attenuation speed of the secondary arc current is related to the series compensation arrangement modes and the time when the series compensation device is short connected or bypassed. Series compensation device short connected or bypassed before circuit breaker tripping which can accelerate the arc extinction speed, and the suppression effect is better when the series compensated double platform segmentation layout is distributed on both sides of the line. The results can be used as a reference for the engineering design of UHV with large capacity and long distance and high compensation series compensation transmission lines.

scholarly journals The Analysis and Solution of Current Differential Protection Maloperation for Transmission Line with High Series Compensation Degree

Energies ◽  
2019 ◽  
Vol 12 (9) ◽  
pp. 1639 ◽  
Author(s):  
Li ◽  
Fu ◽  
Wang ◽  
Wang ◽  
Bao ◽  
...  
Keyword(s):  
Operation Mode ◽  
Power Grids ◽  
Differential Protection ◽  
Series Compensation ◽  
Internal Fault ◽  
Current Differential Protection ◽  
Physics Simulation ◽  
Transition Resistance ◽  
High Series ◽  
Operation Characteristics

With the increasing integration of huge-size generators and tighter interconnection among power grids, in internal fault, the fault current of Series Compensated (SC) lines may be reversed. At this time, the differential protection of SC lines may fail to operate due to insufficient sensitivity. In this research analyzes the reasons for the current reverse in SC lines and its effect on differential protection. The operation characteristics of differential protection are studied by focusing on multiple factors, including different series compensation degree, fault types, system operation mode, power angle difference, fault points, and transition resistance. An improved criterion based on the current amplitudes and phases on both sides of the series compensated lines is proposed. Further, to strengthen the operation characteristics of differential protection, the triple-fold line is chosen to improve the sensitivity for internal faults in this paper. The criterion is effective to improve the protection sensitivity of SC lines during internal fault. The PSCAD/EMTDC simulation and the power system dynamic physics simulation demonstrates that protection sensitivity is obviously increased in the improved scheme.

Use of an auto-expansion circuit breaker in a ring main unit

1988 ◽  
Vol 135 (3) ◽  
pp. 219
Author(s):  
G. Bernard ◽  
G. Perrissin ◽  
J. Marzocca
Keyword(s):  
Circuit Breaker ◽  
Expansion Circuit

Fundamental Investigation of a Gas Circuit Breaker in University

2010 ◽  
Vol 130 (12) ◽  
pp. 1047-1052
Author(s):  
Hiroaki Toda ◽  
Masayuki Hikita ◽  
Hisatoshi Ikeda
Keyword(s):  
Circuit Breaker ◽  
Fundamental Investigation

An Electromagnetically Actuated Vacuum Circuit Breaker Developed by Electromagnetic Analysis Coupled with Motion

2004 ◽  
Vol 124 (2) ◽  
pp. 321-326 ◽  
Author(s):  
Toshie Takeuchi ◽  
Takafumi Nakagawa ◽  
Mitsuru Tsukima ◽  
Kenichi Koyama ◽  
Nobumoto Tohya ◽  
...  
Keyword(s):  
Circuit Breaker ◽  
Electromagnetic Analysis ◽  
Vacuum Circuit Breaker ◽  
Electromagnetically Actuated

Simulation of SLF Interrupting Performance for CO2 Gas Circuit Breaker based on Serially Connected 3 Arc Models

2010 ◽  
Vol 130 (10) ◽  
pp. 888-894
Author(s):  
Tadashi Koshizuka ◽  
Keisuke Udagawa ◽  
Takeshi Shinkai ◽  
Toshiyuki Uchii ◽  
Hiromichi Kawano
Keyword(s):  
Circuit Breaker ◽  
Co2 Gas

Arc Model to Evaluate D.C. Interruption Performance for Molded Case Circuit Breaker

2018 ◽  
Vol 138 (6) ◽  
pp. 529-534
Author(s):  
Yoshihisa Ogawa ◽  
Tadashi Koshizuka ◽  
Koichi Asakusa ◽  
Tsuyoshi Wakasa
Keyword(s):  
Circuit Breaker ◽  
Arc Model

Smart Solid State Circuit Breaker for Photo Voltaic Power Plants

2017 ◽  
Vol 12 (5) ◽  
pp. 409 ◽  
Author(s):  
Luigi Rubino ◽  
Guido Rubino ◽  
Pompeo Marino ◽  
Luigi Pio Di Noia
Keyword(s):  
Solid State ◽  
Power Plants ◽  
Circuit Breaker ◽  
Solid State Circuit ◽  
Photo Voltaic ◽  
Solid State Circuit Breaker
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