Results 201 to 210 of about 4,859 (223)

Research on fault line selection in small-current neutral grounding power system

Proceedings of 2013 IEEE International Conference on Vehicular Electronics and Safety, 2013
A method of fault line selection was proposed based on fault grounded point transfer and wavelet transform in small-current neutral grounding system in this paper. Phase-separation vacuum circuit breaker was installed in the busbar and realize fault grounded point transfer through vacuum breaker of fault phase when single-phase-to-ground fault occurs ...
Hai-Jun Cheng, Hui Meng, Pi-Jie Jiang
openaire   +2 more sources

Research about single-phase fault feeder selection of small current neutral grounding system

2011 2nd International Conference on Artificial Intelligence, Management Science and Electronic Commerce (AIMSEC), 2011
The reliability of selecting the power lines of single-phase fault in small current grounding system is rather low because the fault current is too little, the electric arc is unstable, the electromagnetic interference is strong and the SNR is low.
null Xiuhua Wu, null Duo Pan, null Da Zheng   +2 more
openaire   +2 more sources

The Research and Demonstration Application of High-Impedance Faults Diagnosis Approach in Small Current Neutral Grounding System

2018 China International Conference on Electricity Distribution (CICED), 2018
Comparing with low-Impedance faults(LIFs), the high-impedance faults(HIFs) in the small current neutral grounding system has a small fault current, poor stability, so that the diagnosis are more difficult. In recent years, the isolation technique level of small current grounding fault has been improved, a variety of line selection and location ...
Li Tianyou, Huang Chaoyi, Zhu Yiyong
openaire   +2 more sources

The Design Based on Integrated Criterion to Faulty Line Selection for Small Current Neutral Grounding System

Applied Mechanics and Materials, 2014
Small current neutral grounding system is widely used in 3~66 kV power distribution system in China. In this power system, the single-phase to-earth fault occurs frequently in distribution, thus how to detect the fault line with great accuracy and high efficiency is an important subject in protective relaying of power system.
Han Mei Hu, Qin Feng Li, Bo Hong, Nian Fang   +3 more
openaire   +3 more sources

Research on Ferroresonance Detection in Small Current Neutral Grounding System

Advanced Materials Research, 2013
A novel method to detect ferroresonance was proposed based on the drastic characteristics of the electromagnetic voltage transformer (PT) current rate. This scheme takes current rate which is greater than a threshold value as starting signal and judges the occurrence of resonance by detecting duty ratio of the peaks and interval angles.
Qing Chao Zhang, Xin Hua Jia, Peng Jia, Chao Wei   +3 more
openaire   +1 more source

Reliability-Enhanced Hybrid Grounding System Based on Active Neutral-Point Voltage Regulator and Low-Resistance

IEEE Transactions on Power Delivery, 2021
Kangli Liu, Sen Zhang, Jianfeng Zhao
exaly  

Suppression Strategy on Neutral Point Overvoltage in Resonant Grounding System Considering Single Line-to-ground Fault

Electric Power Systems Research, 2022
Mou-Fa Guo, Ze-Yin Zheng
exaly  

Principle and Design of a Single-Phase Inverter-Based Grounding System for Neutral-to-Ground Voltage Compensation in Distribution Networks

IEEE Transactions on Industrial Electronics, 2017
Wen Wang, Xiangjun Zeng, Bishuang Fan
exaly  

Electrical Safety Analysis in the Presence of Resonant Grounding Neutral

IEEE Transactions on Industry Applications, 2019
Massimo Mitolo, Rossano Muscă, Michele Tartaglia   +2 more
exaly  

The historical development of neutral grounding practices

IEEE Industry Applications Magazine, 1997
E L Owen
exaly