Transient Earthfault detection on Petersen coil earthed systems with residually connected CT'S

2020 ◽  
Author(s):  
A. Wixon ◽  
P. Newman ◽  
A. Varghese ◽  
S. Injeti
Keyword(s):  
Petersen Coil

Device for Automatic Control of the Petersen Coil

2015 ◽  
pp. 1121-1137 ◽  
Author(s):  
Dumitru Toader ◽  
Costantin Blaj ◽  
Petru Ruset ◽  
Ioan Dorin Hategan ◽  
Nicolae Pinte ◽  
...  
Keyword(s):  
Automatic Control ◽  
Petersen Coil

Faulty Feeder Detection and Fault Self-Extinguishing by Adaptive Petersen Coil Control

2011 ◽  
Vol 26 (2) ◽  
pp. 1290-1291 ◽  
Author(s):  
Xiangning Lin ◽  
Jingguang Huang ◽  
Shuohao Ke
Keyword(s):  
Petersen Coil

Shunt Petersen-Coil with Resistor for Single Phase Fault Detection in Resonant Grounded Power Distribution Systems

2013 ◽  
Vol 860-863 ◽  
pp. 2007-2012 ◽  
Author(s):  
Xiao Meng ◽  
Neng Ling Tai ◽  
Yan Hu ◽  
Xia Yang
Keyword(s):  
Power Distribution ◽  
Distribution System ◽  
Distribution Systems ◽  
Single Phase ◽  
Detection Sensitivity ◽  
Power Distribution Systems ◽  
Power Distribution System ◽  
Multi Level ◽  
The Difference ◽  
Petersen Coil

The failure current in resonant grounder power distribution system is small, so it is difficult to detect the fault feeder. This passage presents the equivalent circuit of resonant grounded system, and discusses the difference of electrical characteristics between faulty feeder and sound feeders by using shunt resistors. To reduce the influence of shunt resistors on the system and improve the detection sensitivity, it presents the method of shunting multi-level resistors, and it proves the sensitivity and reliability of this method by EMTP simulation.

Novel control techniques of Petersen-coil

2008 ◽  
Author(s):  
Xu Yao ◽  
Zeng Xiangjun ◽  
Liu Zhanglei ◽  
Yi Wentao
Keyword(s):  
Control Techniques ◽  
Petersen Coil

scholarly journals Analysis of the Influence of the Insulation Parameters of Medium Voltage Electrical Networks and of the Petersen Coil on the Single-Phase-to-Ground Fault Current

Energies ◽  
2021 ◽  
Vol 14 (5) ◽  
pp. 1330
Author(s):  
Dumitru Toader ◽  
Marian Greconici ◽  
Daniela Vesa ◽  
Maria Vintan ◽  
Claudiu Solea
Keyword(s):  
Fault Location ◽  
Single Phase ◽  
Analytical Calculation ◽  
Electrical Network ◽  
Fault Current ◽  
Electrical Networks ◽  
Medium Voltage ◽  
Ground Fault ◽  
Fault Currents ◽  
Petersen Coil

Settings of protection are essential to ensure the sensitivity and selectivity needed to detect defects. Making the correct settings requires the calculation of the fault currents with as little error as possible. Fault currents are influenced by the parameters of the electrical networks, including the state of the insulation and the Petersen coil, which changes during their operation electrical networks. This paper analyzes how the insulation parameters of medium voltage power lines, the parameters of the Petersen coil used to treat the neutral of the medium voltage electrical network and the value of the resistance at the fault location influence the fault current in the case of a single-phase fault. The large number of single-phase faults that occur in medium voltage electrical networks justifies this analysis. The symmetrical components method was used to calculate the fault current. The results obtained by calculation were verified experimentally by causing a single-phase-to-ground fault in a real medium voltage network. The paper presents the situations in which the analytical calculation of the single-phase-to-ground fault current can lead to inadmissibly large errors, even over 50%, but also the situations in which the errors fall below 3%.

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