Power Substation ♛
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The mystery of nuisance tripping incidents in transformer protection that worry engineers
This technical article deals with transformer failure incidents due to nuisance tripping caused by various design flaws, operational conditions, or improper protection relay settings. The focus is on differential protection…...
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Feb 22, 2021 | By Salem Alshahrani
Energy and Power
A few practical ways to determine required reactive energy compensation for a power system
This article will shed some light on how adding capacitors gives the distribution system the necessary reactive power to return the power factor to the required level. Capacitors act as… Read more
Mar 01, 2021 | By Edvard
Energy and Power
The art of load shedding and online applications in a power system under an emergency state
Load shedding is a controllable reduction of a predetermined amount of the load power consumption according to specific shedding criteria. The predetermined amount of load to be shed is traditionally… Read more
Feb 24, 2021 | By Mohamed EL-Shimy
Maintenance
Troubleshooting Buchholz relay and recommended actions when it operates
This technical article provides guidance on the possible causes of Buchholz relay operation and recommends actions following the receipt of a Buchholz surge trip or gas collection alarm. It covers… Read more
Feb 15, 2021 | By Edvard
Power Substation
Functional testing of IEC 61850 based Substation Automation Systems
Testing the protection element settings of IEDs and protection schemes are well established practices when testing a Protection, Automation and Control (PAC) system. Tools and methods are available to support… Read more
Feb 08, 2021 | By Christian B. and Eugenio C. at OMICRON
Medium Voltage ♛
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Sizing of 110V DC charger for MV panels – Auxiliary power supply in power substations
An auxiliary DC power system that consists of a charger, battery bank, DC distribution system, and monitoring system is a critical part of the primary/secondary substation. It is directly associated…...
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This technical article/guide requires a Premium Membership. Get access to all premium HV/MV/LV technical articles, electrical engineering guides, and papers. Check out each plan's benefits and choose the membership plan that works best for you or your organization.You can choose an annually based Plus, Pro, or Enterprise membership plan.
NOTE! - With an Enterprise plan, you get a 50% off on all courses at the EEP Academy.
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Feb 08, 2021 | By Bishal Lamichhane
Maintenance
Recommendations for the successful erection of medium voltage switchgear
Electrical engineers working on project execution know that switchgear erection brings many challenges, no matter the voltage level. The switchgear cannot always be assembled in the factory and shipped to… Read more
Feb 01, 2021 | By Edvard
Power Substation ♛
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NOTE! - With an Enterprise plan, you get a 50% off on all courses at the EEP Academy.
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Learn how to read and analyze control circuits of MV gas insulated switchgear (GIS)
Previously, an introductory part of the GIS and its components were discussed to pave the way for the GIS control circuits. Moreover, the single-line diagram example for a double-bus and…...
PREMIUM Membership Required
This technical article/guide requires a Premium Membership. Get access to all premium HV/MV/LV technical articles, electrical engineering guides, and papers. Check out each plan's benefits and choose the membership plan that works best for you or your organization.You can choose an annually based Plus, Pro, or Enterprise membership plan.
NOTE! - With an Enterprise plan, you get a 50% off on all courses at the EEP Academy.
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Jan 25, 2021 | By Salem Alshahrani
Energy and Power
How to measure power quality? What devices should you use and what to measure?
Measuring power quality and finding a bugbear in the network which is messing with the power are considered a highly paid job. Every electrical network and its problems with harmonics,… Read more
Jan 18, 2021 | By Edvard
Power Substation ♛
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NOTE! - With an Enterprise plan, you get a 50% off on all courses at the EEP Academy.
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Mastering GIS control circuits: AC/DC auxiliary circuits and circuit breaker closing circuit
A gas-insulated substation (GIS) is usually utilized in high voltage applications in which all conductive parts are encapsulated in sealed cylinders with SF6 as the insulating medium. The air-insulated substation…...
PREMIUM Membership Required
This technical article/guide requires a Premium Membership. Get access to all premium HV/MV/LV technical articles, electrical engineering guides, and papers. Check out each plan's benefits and choose the membership plan that works best for you or your organization.You can choose an annually based Plus, Pro, or Enterprise membership plan.
NOTE! - With an Enterprise plan, you get a 50% off on all courses at the EEP Academy.
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Jan 11, 2021 | By Salem Alshahrani
Power Substation
Four ways of ensuring proper selectivity in MV/HV electrical network protection
Selectivity study of a power system is usually considered as an advanced job for advanced engineers, mostly relay protection engineers. This article will try to get close to a few… Read more
Jan 04, 2021 | By Edvard
Energy and Power
Hey engineers, wish you a happy and normal new year, 2021!
Just a short note from me today, the end of this crazy year. I’d like to wish you a normal and happy New Year on behalf of myself and everyone… Read more
Dec 30, 2020 | By Edvard
Energy and Power ♛
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Ten most dangerous mistakes in the operation of low voltage switchgear (you should be aware of)
The Association of Steam and Electric Apparatus Owners (APAVE) generally classifies low-voltage equipment as any equipment that requires a rating of ≤ 1000 volts to operate. With a majority of…...
PREMIUM Membership Required
This technical article/guide requires a Premium Membership. Get access to all premium HV/MV/LV technical articles, electrical engineering guides, and papers. Check out each plan's benefits and choose the membership plan that works best for you or your organization.You can choose an annually based Plus, Pro, or Enterprise membership plan.
NOTE! - With an Enterprise plan, you get a 50% off on all courses at the EEP Academy.
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Dec 28, 2020 | By Ezeala Winner
Electrical Lectures
The facts about numerical relays that every electrical engineer should know
The first protection devices based on microprocessors were employed in 1985. The widespread acceptance of numerical technology by the customer and the experiences of the user helped in developing the… Read more
Dec 23, 2020 | By Edvard
Electric Motor
Troubleshooting the most typical winding problems of three phase electric motors
It’s always important to identify the real cause of burned windings and not just to replace the electric motor. Motor windings have a different appearance in all these failure situations:… Read more
Dec 21, 2020 | By Edvard
