Edvard Csanyi is an electrical engineer, programmer, and founder of Electrical Engineering Portal. Highly specialized for design of LV high power busbar trunking (<6300A) in power substations, buildings, and industry fascilities. Designing of LV/MV switchgears. Professional in AutoCAD programming and web-design. Present on Google+ Website: http://www.csanyigroup.com
Energy efficiency involves reducing energy consumption, optimizing energy costs, and improving installation reliability. To achieve a high level of energy efficiency, there are at least six solutions you can apply.
Ground potential rise is a very important and very dangerous event. The grounding engineer will be required to develop safety systems to protect any personnel working where ground potential rise hazards are known to exist.
For all protective conductors, including main and supplementary bonding conductors, electricians must perform a continuity test using a low-reading ohmmeter. For main equipotential bonding, there is no single fixed value of resistance above which the conductor would be deemed unsuitable.
A firm understanding of the basic principles associated with series and parallel circuits is a sufficient background to begin an investigation of any single-source DC network having a combination of series and parallel elements or branches.
Selective coordination is often referred to simply as coordination. Coordination is defined in NEC® 240.2 as: “The proper localization of a fault condition to restrict outages to the equipment affected, accomplished by the choice of selective fault-protective devices.”
This procedure for troubleshooting open-circuit faults in the control circuit is designed to start in the middle of the problem area and give us the best idea of which direction to go. The control transformer is a good place to start since it is in the middle of the circuit and is part of the power and control circuits.
Neutral point connection method First, let’s define the different medium voltage earthing systems and then compare the advantages and disadvantages of each one. Earthing systems in medium voltage can be…