Single-pole switching of EHV transmission line with capacitance grounding

Basu K.P.; Hamid S.; Hasan S.

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Single-pole switching of EHV transmission line with capacitance grounding

机译：带电容接地的超高压输电线路的单极开关

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Single-pole tripping of circuit breakers at the end of a transmission line for clearing LG fault (single phase to ground fault) produces high negative sequence current in nearby generators. Inserting a capacitor-connected between the ground and neutral of wye winding of a transformer at the end of the transmission line under open phase conditions-causes the net zero sequence reactance, which shunts the negative sequence network, to be zero. The negative sequence current is eliminated. The power transfer with one phase open, during single pole switching, becomes equal to pre-fault power and the transient stability limit is highly enhanced. Power swing is reduced.

机译：传输线末端用于清除LG故障（单相接地故障）的断路器的单极跳闸会在附近的发电机中产生较高的负序电流。在断相情况下，在传输线末端的变压器的星形绕组的地线和中性线之间插入一个电容连接的电容器，会导致净零序电抗（使负序网络旁路）为零。消除了负序电流。在单极开关过程中，单相断开时的功率传递变得等于故障前功率，并且瞬态稳定性极限得到了极大提高。功率摆幅减小。

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来源
《IEEE Power Engineering Review》 |2002年第9期|p.45-46|共2页
作者
Basu K.P.; Hamid S.; Hasan S.;
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作者单位

Fac. of Eng., Multimedia Univ., Malaysia;

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原文格式 PDF
正文语种 eng
中图分类无线电电子学、电信技术;
关键词
power transmission lines; earthing; power capacitors; switching; electric reactance; capacitance; single-pole switching; EHV transmission line; capacitance grounding; circuit breakers; single phase to ground faults clearing; high negative sequence cu;

机译：输电线路;接地;功率电容器;交换;电抗电容;单极开关;超高压输电线路;电容接地;断路器;单相接地故障清除;高负序铜;

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专利

1. Wavelet transform and neural network approach to developing adaptive single-pole auto-reclosing schemes for EHV transmission systems [J] . Yu I.K., Song Y.H. IEEE Power Engineering Review . 1998,第11期

机译：小波变换和神经网络方法开发超高压输电系统自适应单极重合闸方案
2. Neural-network based adaptive single-pole autoreclosure technique for EHV transmission systems [J] . Aggarwal R.K., Johns A.T. IEE proceedings. Part C . 1994,第2期

机译：基于神经网络的超高压输电系统自适应单极重合闸技术
3. A permanent fault identification method for single-pole grounding fault of overhead transmission lines in VSC-HVDC grid based on fault line voltage [J] . Li Botong, Cui Hanqing, Li Bin, International journal of electrical power and energy systems . 2020,第May期

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4. Application of single-pole auto reclosing of circuit breakers in EHV transmission line with capacitance grounding [C] . Basu K.P., Hamid S., Hasan S. Transmission and Distribution Conference and Exhibition 2002: Asia Pacific. IEEE/PES . 2002

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5. CAPACITIVE COUPLING COMPENSATION FACILITATING SINGLE-POLE SWITCHING ON SIX-PHASE TRANSMISSION LINES (SECONDARY ARC, RECOVERY VOLTAGE). [D] . AL-SHEHRI, ABDALLAH MOH'D. 1985

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Single-pole switching of EHV transmission line with capacitance grounding

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