Published by Rafael ALIPIO, Renan SEGANTINI, Federal Centre of Technological Education of Minas Gerais Abstract. This paper assesses the transient distribution of potentials along a grounding grid subjected to currents representative of first and subsequent strokes. It is shown that the transient non-uniform distribution of potential along the grounding system may lead to the flowContinue reading “Electromagnetic Disturbances Propagation Along a Grounding Grid Subjected to Lightning Currents”
Tag Archives: Safety/Protection
Power System Grounding: Understanding Lightning Strikes
Published by Lorenzo Mari, EE Power – Technical Articles: Power System Grounding: Understanding Lightning Strikes, November 13, 2020. Learn about the fundamentals of lightning strikes and the risk they pose for electric power systems and operator safety. Lightning is an electrical discharge of the accumulation of electrostatic electricity from cloud to cloud, within a cloud, orContinue reading “Power System Grounding: Understanding Lightning Strikes”
AC Equipment Grounding: How Dangerous are Electric Shocks?
Published by Lorenzo Mari, EE Power – Technical Articles: AC Equipment Grounding: How Dangerous are Electric Shocks?, July 31, 2020. This article looks at the effects of AC electric current on the human body. An electric current passing through the human body can cause death. On many occasions, the cause of death is in the heart,Continue reading “AC Equipment Grounding: How Dangerous are Electric Shocks?”
What are Overcurrent Protection Devices?
Published by Alex Roderick, EE Power – Technical Articles: What are Overcurrent Protection Devices?, February 10, 2021. Learn about the basics of overcurrent, how it occurs, and ways to protect against and prevent it in power circuits. To have a properly operating circuit, current flow should be confined to a safe level. This safe level ofContinue reading “What are Overcurrent Protection Devices?”
Difference Between Grounding and Earthing
Published by Henry, theengineeringknowledge.com, May 20, 2020 The basic difference between grounding and earthing is that in grounding the conductor through which the current is flowing is connected with the ground while in earthing the conductor through which the current is not flowing is attached with the ground. In this post, we will have aContinue reading “Difference Between Grounding and Earthing”
AC and DC Circuit Breakers for Overcurrent Protection
Published by Alex Roderick, EE Power – Technical Articles: AC and DC Circuit Breakers for Overcurrent Protection, March 05, 2021. This article highlights circuit breaker that is an overcurrent protection device (OCPD) designed to protect electrical devices and individuals from overcurrent conditions. A circuit breaker is an overcurrent protection device (OCPD) designed to protect electrical devicesContinue reading “AC and DC Circuit Breakers for Overcurrent Protection”
Overvoltage Induced in Overhead Power Lines by nearby Lightning Stroke
Published by Grzegorz MASŁOWSKI, Robert ZIEMBA, Tomasz KOSSOWSKI,Rzeszow University of Technology Abstract. The results of simulations of overvoltages induced in the overhead transmission line, caused by nearby lightning stroke are presented. Calculations were made using the LIOV module implemented in the EMTP-RV program. The influence of the distance of the lightning channel from the lineContinue reading “Overvoltage Induced in Overhead Power Lines by nearby Lightning Stroke”
Understanding the Interaction between Lightning and Power Transmission Lines
Published by Lorenzo Mari, EE Power – Technical Articles: Understanding the Interaction between Lightning and Power Transmission Lines, November 21, 2020. Learn about the impact lightning strikes have on transmission lines and proper grounding’s role in lowering the chances of irreversible damage to a power system. Lightning disturbances are usually a significant issue for transmissionContinue reading “Understanding the Interaction between Lightning and Power Transmission Lines”
AC Ground Faults, the Boater, and ABYC—Understanding Equipment Leakage Circuit Interrupters (ELCIs) and Ground Fault Circuit Interrupters (GFCIs) to make your boat safer.
Published by Blue Sea Systems Inc., website: http://www.bluesea.com There are two potential failures in a boat’s electrical system that can put people on or around the boat at risk of lethal electric shock. Understanding Equipment Leakage Circuit Interrupters (ELCIs) and Ground Fault Circuit Interrupters (GFCIs) to make your boat safer. In a properly functioning marineContinue reading “AC Ground Faults, the Boater, and ABYC—Understanding Equipment Leakage Circuit Interrupters (ELCIs) and Ground Fault Circuit Interrupters (GFCIs) to make your boat safer.”
Case Studies on Ground-Fault Protection of Microgrid Power Systems with Diverse Power Sources
Published by Dirk Danninger IEEE Member Schweitzer Engineering Laboratories, Inc. 2350 NE Hopkins Court Pullman, WA 99163, USAScott Manson Senior Member, IEEE Schweitzer Engineering Laboratories, Inc. 2350 NE Hopkins Court Pullman, WA 99163, USAFernando Calero IEEE Member Schweitzer Engineering Laboratories, Inc. 2350 NE Hopkins Court Pullman, WA 99163, USACeeman Vellaithurai Senior Member, IEEE Schweitzer EngineeringContinue reading “Case Studies on Ground-Fault Protection of Microgrid Power Systems with Diverse Power Sources”
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