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… Read more
Sep 16, 2020 | Energy and Power
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… Read more
Sep 14, 2020 | Electric Motor
How to convert old substation to 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…...
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Sep 07, 2020 | Power Substation ♛
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… Read more
Sep 02, 2020 | Protection
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… Read more
Aug 31, 2020 | Electrical Lectures
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…...
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Aug 26, 2020 | High Voltage ♛
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… Read more
Aug 24, 2020 | Energy and Power
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… Read more
Aug 19, 2020 | Metering
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…...
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Aug 17, 2020 | Energy and Power ♛
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 the mess. The best protection is differential (ANSI 87), and this type… Read more
Aug 12, 2020 | Energy and Power
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… Read more
Aug 10, 2020 | Electric Motor
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… Read more
Aug 05, 2020 | Low Voltage
My practical experience in the electrical protection system of industrial generators
A functional protection system installed, commissioned, and maintained on critical equipment like an industrial generator is of high importance. As such, every protection system must have the ability to: accurately…...
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This page requires a Premium Membership. Get access to premium HV/MV/LV technical articles, electrical engineering guides, and papers. Check out each plan's benefits and choose the membership that works best for you or your organization.You can purchase annually based Plus, Pro, or Enterprise membership.Log InSign Up
Aug 03, 2020 | Power Substation ♛
Installation guidelines for MV metal-enclosed switchgear and controlgear (IEC 62271-200)
What does it mean ‘metal-enclosed switchgear’? Metal-enclosed switchgear and controlgear are generally assembled from type-tested panels. As per IEC 62271-200 metal-enclosed switchgear installations must be designed so that their insulation… Read more
Jul 27, 2020 | Medium Voltage
How system earthing keeps you and the network safe
The term “earthing” consists of several functions which only have “utilizing the earth” in common. Before describing the system earthing, it can be of interest to know a bit about… Read more
Jul 22, 2020 | Energy and Power
