Protection
Commissioning Numerical Protection and Procedure For Carrying Out Performance Tests
Numerical protection is based on a number of microprocessors that can be programmed to reproduce virtually any type of protection and relay. It represents important advantages in reliability, space and economics compared to conventional protection arrangements. The method of calculating… Read more
Oct 30, 2017 | By Edvard Csanyi
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3 Applications Of Capacitor Banks Used To Correct The Load Power Factor
Capacitors are used in industrial premises for two basic functions: the first, to correct the load power factor, usually to meet the supplying authority’s supply requirements and avoid tariff penalties if the required power factor is not met, and the…...
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Oct 27, 2017 | By Edvard Csanyi
Electric Motor
How bad harmonics influence the work of motors and generators, transformers, capacitors etc.
The distortion in the waveform in the load current of any nonlinear device causes similar changes in the voltage waveform relative to the harmonic impedance of the source network. This voltage distortion affects both the current and voltage for all… Read more
Oct 25, 2017 | By Edvard Csanyi
Electric Motor
Troubleshooting three basic hardwired control circuits used in starting electric motor
Generally speaking, basic control circuits are used in starting, stopping, sequencing, and safety automatic interlocking of equipment and machines. The control circuit consists of relays, relay contacts, contactors, timers, counters, etc. Control circuits can also be configured or programed in… Read more
Oct 23, 2017 | By Edvard Csanyi
Industrial Automation
Precautions for start and stop control of AC drives and problems that might arise
The protection of the mains supply side of the converter requires a short-circuit protection. This can be, either in the form of a set of adequately rated fuses, usually as part of a switch-fuse unit, or a main circuit breaker…. Read more
Oct 18, 2017 | By Edvard Csanyi
Protection
Differential protection of transformers, machines, busbars, lines and feeders
Differential protection is very useful method of protection that can be applied to the protection of any network component, such as transformers, machines, busbars, lines and feeders. The differential relay compares the incoming phase currents of an object to the… Read more
Oct 16, 2017 | By Edvard Csanyi
Energy and Power
Improvement of Power Quality via Dynamic Reactive Power Compensation Systems
In many cases, industrial plants are characterized in particular by the use of highly dynamic drive technology. In addition to the undeniable advantages of these modern technologies, there is the disadvantage that the electrical networks are strained because of frequent… Read more
Oct 11, 2017 | By Edvard Csanyi
Energy and Power
The Structure of Electric Power Systems (Generation, Distribution and Transmission Of Energy)
From a general perspective, an electric power system is usually understood as a very large network that links power plants (large or small) to loads, by means of an electric grid that may span a whole continent, such as Europe… Read more
Oct 09, 2017 | By Edvard Csanyi
High Voltage
Seven design diagrams that every HV substation engineer MUST understand
A substation engineer should have a good understanding of the electrical equipment and layout of HV power substation. It’s also important to understand relationship between protection and the other equipment in the substations and the distribution system. Beside this, it’s… Read more
Oct 04, 2017 | By Edvard Csanyi
Industrial Automation
The Basics of Hardware and Software for SCADA Systems You Should Know About
As it is known, the SCADA systems are able to measure and monitor different parameters and variables, such as: the level of liquids, the volume of the gases, the volumetric flow rate, the mass of liquids and gases, the pressure,… Read more
Oct 02, 2017 | By Edvard Csanyi
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4 basic designs of an offshore wind farm collector system and important parameters
As the power capacity of offshore wind farms increases, the adequacy of the wind farm electrical system becomes critical. The efficiency, cost, reliability and performance of the overall wind farm will depend, to a great extent, on the electrical system…...
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This content is not available in your premium membership plan. Please upgrade your plan in order to access this content. You can choose an annually based Basic, Pro, or Enterprise membership plan. Subscribe and enjoy studying specialized technical articles, online video courses, electrical engineering guides, and papers.With EEP's premium membership, you get additional essence that enhances your knowledge and experience in low- medium- and high-voltage engineering fields.
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Oct 01, 2017 | By Edvard Csanyi
