Learn how to analyze MV switchgear wiring diagrams and single line diagram
The capability of reading different types of drawings is an essential skill to perform almost all of the engineering tasks. The engineering drawings form the building blocks of industry method to convey detailed information to implement, gather, troubleshoot, maintain, and…...
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Oct 05, 2020 | By Salem Alshahrani

Hints on installation and commissioning power transformers (experience and recommendations)
Purchasing a power transformer for a project is always challenging for every electrical engineer dealing with the procurement. You could omit dozens of possible details from the final specification and get crucified by the company management if you accidentally forget…...
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Sep 28, 2020 | By Edvard Csanyi

My experience in the first synchronization of the MV generator in an industrial plant
Any power plant commissioning, from small industrial GTG (Gas-To-Gasoline) to nuclear facility, will converge to a very final step before (provisional) commercial operation, sometimes empathized as “first kW”: synchronization to the local or national grid. This is in fact a…...
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Sep 21, 2020 | By Marco Bruschini

Eight fuse characteristics you must consider when designing protection circuits
Fuses were the first type of protection to be used, and they still have a place in numerous applications. Although they do not have the flexibility of adjustment and resetting capacity of a circuit breaker, they are nevertheless reliable, high… Read more
Sep 16, 2020 | By Edvard Csanyi

The essentials of electrical systems in cement plants
Many young engineers consider cement plants pretty complicated because of their weird technology. The reason probably lies in the fact that you cannot understand all those technologies unless you worked in such a plant and saw all processes from scratch…. Read more
Sep 14, 2020 | By Edvard Csanyi

How to convert an old substation into a digital substation?
Typically, substations comprise power elements like power transformers, switches, busbars, etc. and control elements like protection units, metering units, RTUs, SCADA, etc. While the power elements are mandatory requirements, the control elements vary as per the function of a substation…...
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Sep 07, 2020 | By Bishal Lamichhane

Protection impacts in the intentional islanding of Distributed Generation (DG)
Distributed Generation can potentially increase the distribution system reliability and provide additional technical and economical benefits by allowing intentional islanding or so called micro-grid operation of DGs. The current IEEE Standards (old IEEE 929 and new IEEE 1547) and UL… Read more
Sep 02, 2020 | By Edvard Csanyi

The essentials of power-generation systems you MUST know in the middle of the night!
When we talk about the power system, there are dozen of essential terms and definitions. One of the most important is for sure that any AC power system begins with a generating source. Electric generators are devices that convert energy… Read more
Aug 31, 2020 | By Edvard Csanyi

Substation and switchyard support structures for electrical equipment (you SHOULD know)
Substation and switchyard structures are used to support the above-grade components and electrical equipment such as cable bus, rigid bus, and strain bus conductors, switches, surge arresters, insulators, and other equipment. Substation and switchyard structures can be fabricated from latticed…...
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Aug 26, 2020 | By Edvard Csanyi

Earth fault protection in a solidly (effectively) earthed high voltage power systems
The fault statistic shows that earth faults are the dominating fault type and therefore the earth fault protection is of main importance in a network. The type of earth fault protection used is dependent of the system earthing principle used…. Read more
Aug 24, 2020 | By Edvard Csanyi

How to make the right selection of a digital transducer for power system measurements
The accurate measurement of the voltage, current or other parameter of a power system is a prerequisite to any form of control, ranging from automatic closed-loop control to the recording of data for statistical purposes. Measurement of these parameters can… Read more
Aug 19, 2020 | By Edvard Csanyi

My experience in solving problems in the cracker plant using a high-speed bus transfer solution
Incoming power supply details: Two of 6.6kV voltage lines are connected to the cracker plant from the distribution substation through reactors. Captive power plant (electricity generation facility) consists of two 36MVA gas turbine generators, two 5MVA steam generators, and two…...
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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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Aug 17, 2020 | By Satish Nurukurthi

Six differential stator-phase-fault protection (87) for all size generators (you MUST know)
Generally, phase faults at generators rarely occur, but when they do, large fault currents can flow and make a mess. The best protection is differential (ANSI 87), and this type is recommended for all generators, except maybe for small units… Read more
Aug 12, 2020 | By Edvard Csanyi

Protection of three-phase motors from unbalance (loss of phase and phase rotation)
The most common cause of unbalance for three-phase motors is the loss of phase resulting from an open fuse, circuit breaker, connector, or damaged conductor. Unbalances in other connected loads can also affect the motor. A voltage unbalance of 3.5%… Read more
Aug 10, 2020 | By Edvard Csanyi

Secondary LV/MV distribution substations in a nutshell (connections and types)
The general method of supplying bulk power to buildings, factories or other complexes is by means of an MV supply, usually at 10 kV, occasionally at 6.6 kV. The installation comprises secondary distribution substation at the point of entry, with… Read more
Aug 05, 2020 | By Edvard Csanyi
