Results 241 to 250 of about 88,367,282 (284)

Study on Fault Location of Single-Phase-to-Ground for Distribution Network

Advanced Materials Research, 2012
The AC-DC method (the AC method combined with the DC method) has integrated the superiority of the AC method’s easy measurement and the DC method’s reliability, so it has achieved some degree of use. The method before only took the ground resistor as the condition of combination, so it is not perfect.
Li Zhang, Xiu Yuan Yang, Jun Ling Ren
openaire   +1 more source

A survey on faulty line selection technology for single-phase-to-ground fault in China

2013 IEEE Industry Applications Society Annual Meeting, 2013
Single-phase-to-ground fault is difficult to detect with traditional methods in NIEPS because of minor fault current, fault arc, harmonics influence and the protection principle limitation. In order to improve the precision and reliability of traditional faulty line selection technologies for NIEPS, more attention has been paid by many researchers over
Yuanyuan Wang, Jun Yuan, Xiangjun Zeng, Yue Huang   +3 more
openaire   +2 more sources

Modeling and simulation analysis of single phase arc grounding fault based on MATLAB

Proceedings of 2011 International Conference on Electronic & Mechanical Engineering and Information Technology, 2011
The single phase arc grounding fault is a main fault form in medium voltage distribution networks. It is essential to build an accurate grounding arc model for fault analysis. In this paper, a new grounding arc model is built based on the MATLAB with the arc gap energy-balance theory.
Ran Yu 0003, Zhouxing Fu, Qingliang Wang, Shangbin Sun, Haidong Chen, Qi Xu, Xuejie Chen   +6 more
openaire   +1 more source

Single phase to ground fault location based on phase of zero-sequence current

2013 IEEE International Conference on Information and Automation (ICIA), 2013
With the continuous development of society and the improvement of people's life, people are increasingly concerning about the safe operation of the power grid, and single phase to ground fault of distribution networks is one of the problems. Because more branch of distribution networks and complex structure, the traditional methods can't achieve ...
Jinjie Li, Yulin Qi, Qiaomei Gao, Shihao Sun   +3 more
openaire   +2 more sources

A New Fault Location Algorithm for Single Phase to Ground Faults in Power Distribution Network

2010 International Conference on Measuring Technology and Mechatronics Automation, 2010
A new fault location algorithm for distribution network is proposed based on the wide-area synchronizing information. The algorithm is based on the distributed parameters model in the small current neutral grounding system, and constructed a fault location function according to the relationships between the fault current and fault distance, which fully
Shu Tian, Xiaowei Wang, Juanjuan Wang
openaire   +1 more source

Control of Smart Transformer Under Single-Phase to Ground Fault Condition

IEEE Transactions on Power Electronics, 2020
In low voltage (LV) electric distribution grid, the continuity of power supply service is degraded by various grid faults. Even under single phase to ground faults, the continuous operation capability of healthy phases is also limited. The smart transformer (ST) can establish each phase voltage independently and thus can switch the operation mode from ...
Rongwu Zhu, Marco Liserre
openaire   +1 more source

Transient processes at single phase-to-ground faults in combined grounded networks

2012 Electric Power Quality and Supply Reliability, 2012
This paper deals with the combined method of neutral grounding when a high-value resistor is continuously connected to a neutral in parallel with a Petersen coil. Monitoring of processes at single phase-to-ground faults was organized in the 6 kV network of the large-scale iron and steel plant.
Andrey Shirkovets, Anastasiya Vasilyeva, Andrey Telegin, Leonid Sarin   +3 more
openaire   +1 more source

Method for locating of single-phase-to-ground faults in ungrounded distribution systems

2013 IEEE Innovative Smart Grid Technologies-Asia (ISGT Asia), 2013
This paper proposes a new method for determining locations of single-phase-to-ground faults in ungrounded distribution system using pre-fault and during-fault fundamental-frequency measurements. The pre-fault measurements along with the load profiles are used to determine load demands for each individual load in a feeder section.
Hongbo Sun, Daniel Nikovski, Tomihiro Takano, Yasuhiro Kojima, Tetsufumi Ohno   +4 more
openaire   +1 more source

Analysis of Single-Phase-to-Ground Fault Generated Initial Traveling Waves

2005 IEEE/PES Transmission & Distribution Conference & Exposition: Asia and Pacific, 2005
Analysis of fault generated traveling waves is the base to implement traveling waves based protection and fault location. However, the structure at fault point is not asymmetrical under single-phase to ground fault condition in multi-phase power system, so that traveling waves analysis method of single circuit can not be applied.
null Shenxing Shi, null Xinzhou Dong, null Shuangxi Zhou   +2 more
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A review of single-phase-to-ground fault location methods in distribution networks

2011 4th International Conference on Electric Utility Deregulation and Restructuring and Power Technologies (DRPT), 2011
Distribution network feeders are very different from transmission lines due to more complex structures and more branches. The phase-to-ground faults in distribution network will induce larger transition resistance than in transmission lines. The traditional single-phase-to-ground fault location methods for transmission lines are no longer suitable for ...
Yuan Li, Houlei Gao, Qiang Du, Xiaosheng Qi, Qingle Pang, Guofang Zhu   +5 more
openaire   +1 more source