Ground Fault Protection Applications in Low Voltage Motor Control Systems for Process Industries

2019 ◽  
Author(s):  
Matthew R. Hussey ◽  
Steven Drzymala
Keyword(s):  
Motor Control ◽  
Control Systems ◽  
Low Voltage ◽  
Process Industries ◽  
Ground Fault ◽  
Fault Protection ◽  
Ground Fault Protection ◽  
Motor Control Systems

Grounding Method and Protection of Low Voltage Multiple Generators

2014 ◽  
Vol 986-987 ◽  
pp. 326-329
Author(s):  
Bin Guo ◽  
Hui Liu
Keyword(s):  
Power System ◽  
Low Voltage ◽  
Ground Fault ◽  
Fault Protection ◽  
Ground Fault Protection

This paper focuses onproper grounding practicesandgrounding fault protectionfor low voltage generators in island mode. The paper presents the fundamentals of power system grounding and requirements of IEEE with respect to grounding, the need for low voltage ground fault protection and implement is execution. The paper outlines the solid grounding method is used and necessary grounding fault protection for multiple generators in low voltage system.

Studying grounding arrangements of the LVDC system through simulation

SIMULATION ◽  
2018 ◽  
Vol 94 (5) ◽  
pp. 441-449 ◽  
Author(s):  
Arash Shabani ◽  
Kazem Mazlumi
Keyword(s):  
Low Voltage ◽  
Electric Grid ◽  
Effective Protection ◽  
Matlab Simulink ◽  
Dc System ◽  
Ground Fault ◽  
Fault Protection ◽  
Simulation Results ◽  
Ground Faults ◽  
Ground Fault Protection

Low-voltage DC (LVDC) systems may soon become an integral part of our electric grid. Faults on DC lines are usually pole-to-ground faults that depend on the grounding arrangement of the DC system. The grounding of the LVDC system is not adequately covered in the literature and there is no comprehensive standard for it. This paper studies the effect of various grounding arrangements of the LVDC system on pole-to-ground fault protection. An overall scheme of the LVDC system is modeled and a pole-to-ground fault is placed on the DC lines. Possible grounding arrangements are analyzed employing MATLAB/Simulink software and detailed discussion is given for each arrangement. Finally, simulation results are compared and a preferred grounding arrangement is selected with the objective of having selective and effective protection without device damage.

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