Results 161 to 170 of about 4,838 (188)

Mapping methods and tools for measuring patient experience in oncology settings: a scoping review. [PDF]

Support Care Cancer
Kowalska JC, Storman D, Michalska K, Świerz M, Maraj M, Zając J, Domagała A.   +6 more
europepmc   +1 more source

Bulk electrical power extraction through tunnel transmission technology from renewable energy concentrated zones. [PDF]

Nat Commun
Fan H, Huang Q, Zhang Z, Khawaja AH, Liao K, Tang X, Shahidehpour M.   +6 more
europepmc   +1 more source

Double closed loop PI control with full compensation arc elimination based on zero sequence voltage of neutral point. [PDF]

Sci Rep
Liu H, Zeng X, Yang Q, Chai C.
europepmc   +1 more source

Ocean heat forced West Antarctic Ice Sheet retreat after the Last Glacial Maximum. [PDF]

Nat Commun
Mawbey EM, Smith JA, Hillenbrand CD, Hendry KR, McClymont EL, Greaves MJ, Klages JP, Kuhn G, Radionovskaya S, Spencer-Jones CL, Larter RD, Wellner JS, Dutrieux P.   +12 more
europepmc   +1 more source

Mapping tipping risks from Antarctic ice basins under global warming. [PDF]

Nat Clim Chang
Winkelmann R, Garbe J, Donges JF, Albrecht T.   +3 more
europepmc   +1 more source

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

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   +1 more source

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   +1 more source

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   +1 more source