The art of predicting the fate of a power transformer by looking into a cup of oil
Insulation medium is an indispensable part of a power transformer, and the interesting thing about it is that it can drop dead at any time. Most of the time, this…...
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Jan 09, 2023 | By Salem Alshahrani

The most common Gas-Insulated Switchgear (GIS) faults and a case of 220kV CB cubicle
Over decades since its inception, GIS switchgear demand is still prevalent in these present times due to its compact built, reliability, and maintenance advantages compared to conventional Air-insulated switchgear. Even…...
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Oct 17, 2022 | By Lark C. Cosedo

Key points on how to design a fault-tolerant and reliable facility distribution system
Nowadays, power system reliability is more important than ever. Regardless of how reliable the individual power-system components may be, some sort of power-system redundancy is necessary to attain high levels… Read more
Jul 18, 2022 | By Edvard Csanyi

Capacitor banks protection, cautions and maintenance tips
It would not be wrong to say that humanity has never consumed so much electricity, and to make the paradox bigger, there is still a lack of energy. The sharp…...
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Apr 04, 2022 | By Rahmatullah Alam

Never let an electric motor drop dead. Learn how to listen and read the motor’s soul.
Like any other machine, electric motors are vulnerable to faults, which might lead to catastrophic failure of the machine in the long run if left unmonitored. In this technical article,…...
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This technical article/guide requires a Premium Membership. You can choose an annually based Plus, 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.Check out each plan’s benefits and choose the membership plan that works best for you or your organization.
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Nov 29, 2021 | By Rahmatullah Alam

Deterioration of high-voltage equipment foundations often neglected during maintenance
Foundations of high-voltage equipment (breakers, disconnectors, CTs, VTs, etc.) and other elements like transmission towers are often neglected in terms of maintenance and condition monitoring. In the long run, this… Read more
Oct 25, 2021 | By Edvard Csanyi

Practical troubleshooting of power interruption in fully operational 33/11 kV substation
Power interruptions are one of the most critical issues that require a swift and effective remedy in a power substation. The power utility substations in the voltage level of 33/11…...
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Oct 04, 2021 | By Bishal Lamichhane

On-site transformer diagnostic measurements: The art of troubleshooting and maintenance
Transformer life management requires a portfolio of the different kinds of on-site electrical tests to be performed. This is where things get complicated. The purposes for performing these tests include… Read more
Sep 13, 2021 | By Edvard Csanyi

Uprating and expanding existing power substations (good practice and recommendations)
All actions involving substation construction require heavy planning. This is especially true of a program of substation uprating or expansion. The trend is toward the assessment of existing substations and… Read more
Jul 05, 2021 | By Edvard Csanyi

Learn how to troubleshoot the operation of distribution substations (problematic breakdowns)
The distribution substation is one of the most important yet arguably the most troublesome section of the power system. Prolonged operation and frequent switching make distribution substations more prone to…...
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Jun 14, 2021 | By Bishal Lamichhane

Learn how to operate an unknown energized low voltage switchgear (practical experience)
Switchgear is an integral part of the electrical protection system, which is used for isolating the faulty parts as well as de-energizing the downstream equipment during maintenance or any other…...
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Apr 19, 2021 | By Bishal Lamichhane

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 Csanyi

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…...
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Feb 01, 2021 | By Edvard Csanyi

Ten most dangerous mistakes in the operation of low voltage switchgear (you should be aware of)
Low-voltage equipment is generally classified as any equipment that requires a rating of less or equal to 1000 volts to operate. With a majority of electrically driven equipment falling under…...
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Dec 28, 2020 | By Ezeala Winner

My worst experience in the maintenance and supervision of medium voltage substations
While there are various voltage levels applicable across the globe depending upon the usability, the category of Medium Voltage remains one of the most critical voltage group comprising primary distribution…...
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Jun 01, 2020 | By Bishal Lamichhane
