Energy and Power
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When can we say that earthing arrangement is safe for people (confusions in practice)
This article will analyse some of the most important safety issues related to design and use of LV electrical installations. Besides explanation of relevant terms in this field defined by IEC standards, some misinterpretations and confusions which may be seen…...
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Feb 28, 2020 | By Miodrag Kokotovic
Medium Voltage
Design tips for medium voltage systems and switchgear in power substations
Medium voltage networks are networks with rated voltages of over 1kV and up to 36kV. Medium voltage switchgear is used in transformer substations and switching substations, and in secondary unit substations and customer substations (in public utility networks only). This… Read more
Feb 26, 2020 | By Edvard Csanyi
Electric Motor
The art of designing the auxiliary system of a power plant
Power plant auxiliary system is usually pretty complicated and consists of dozen of motors, transformers, capacitor banks, variable frequency drives, PLCs, and other electrical devices. Therefore, protection relaying cannot be simple, and it requires special attention for each component of… Read more
Feb 24, 2020 | By Edvard Csanyi
Energy and Power
Controlling power system parameters through reactive power (VAr) compensation
To be honest, transmission and distribution networks are full of problems. But that’s nothing new, and you already knew that. This technical article will shed some light on solving some pretty severe problems in transmission and distribution networks by using… Read more
Feb 17, 2020 | By Edvard Csanyi
Energy and Power
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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Design and control considerations for an example of the waste water pumping station
Wastewater pumping stations are very common application examples of three-phase induction motors. There are numerous varieties of power supply and control logic, depending on exact conditions in the place of installation, the role of the pumping station inside a sewer…...
Membership Upgrade Required
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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Feb 14, 2020 | By Miodrag Kokotovic
Energy and Power
Inevitable in almost all electrical switchboards – Residual current device (RCD)
Technology that RCD uses is so simple and so magical. The residual current device continually measures the difference between the value of the outgoing and incoming currents in the circuit it is protecting. If this difference is not equal to… Read more
Feb 12, 2020 | By Edvard Csanyi
Maintenance
The art of transformer maintenance, inspection and repair (recommended practices)
The primary purpose of transformer maintenance is to ensure the internal and external parts of the transformer and accessories are kept in good condition and “fit for purpose” and able to operate safely at all times. A secondary and equally… Read more
Feb 10, 2020 | By Edvard Csanyi
Low Voltage
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Lessons I learned during installation and wiring of LV switchboard
Let’s start with some basic definitions from the United States National Electrical Code (NEC). Low voltage switchboard is generally defined as a large single panel, frame, or assembly of panels on which are mounted on the face, back, or both,…...
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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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Feb 05, 2020 | By Amar M
Energy and Power
Advice in choosing the right neutral earthing system for your installation
The choice of a neutral earthing system is dependent on requirements and objectives that are often contradictory to such an extent that sometimes several systems have to be created within one installation (islanding) in order to meet safety, maintainability, or… Read more
Feb 03, 2020 | By Edvard Csanyi
