Transmission line fault location for double phase-to-earth fault on non-direct-ground neutral system

2000 ◽  
Vol 15 (2) ◽  
pp. 520-524 ◽  
Author(s):  
Yao Zhang ◽  
Qingchao Zhang ◽  
Wennan Song ◽  
Yixin Yu ◽  
Xiao Li
Keyword(s):  
Transmission Line ◽  
Fault Location ◽  
Neutral System ◽  
Earth Fault ◽  
Double Phase

Transmission line fault location for single-phase-to-earth fault on non-direct-ground neutral system

1998 ◽  
Vol 13 (4) ◽  
pp. 1086-1092 ◽  
Author(s):  
Zhang Qingchao ◽  
Zhang Yao ◽  
Song Wennan ◽  
Fang Dazhong
Keyword(s):  
Transmission Line ◽  
Fault Location ◽  
Single Phase ◽  
Neutral System ◽  
Earth Fault

scholarly journals AN EXTENDED ANN-BASED HIGH SPEED ACCURATE TRANSMISSION LINE FAULT LOCATION FOR DOUBLE PHASE TOEARTH FAULT ON NON-DIRECT-GROUND

2019 ◽  
Vol 1 (1) ◽  
pp. 31-47
Author(s):  
Okwudili E. Obi
Keyword(s):  
Neural Network ◽  
Transmission Line ◽  
High Speed ◽  
Fault Location ◽  
Diagnostic System ◽  
Relevant Information ◽  
Abnormal Behavior ◽  
Multiple Faults ◽  
Double Phase ◽  
The Neural Network

This research has developed an extended Artificial Neural Networks (ANN) based high speed accurate transmission line fault location for double phase to- earth fault on non-direct-ground. Therefore, this research presents a system that capable of detecting and locating the fault with less proportion of error. This system uses the Global Positioning System (GPS) to locate the position and the Global System for Mobile Communication (GSM) to send these messages to system supervisor. A reduction in the size of the neural network improves the performance of the same and this can be achieved by performing feature extraction. By doing this, all of the important and relevant information present in the waveforms of the voltage and current signals can be used effectively. Voltage and current waveforms have been generated and were sampled at a frequency of 720 Hertz. The neural network diagnostic system trained for double faults was found to be able to accurately diagnose abnormal behavior resulting from simultaneous multiple faults. Graceful degradation of the diagnostic system was observed in situations where faults where not accurately diagnosed or under damage to a few nodes.

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