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 of power-system reliability, with the ultimate aim being 24 hour/day… 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 increase in consumption in the last couple of decades has…...
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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, I will try to shed some light on the possible…...
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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 can cause serious cost problems and power disruption. This technical… 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 kV, 11/0.4 kV are generally the major distribution hub and,…...
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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 fingerprint measurements of new transformers to characterize the initial status,… 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 individual equipment to develop a predictive maintenance and substation life…...
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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 breakdowns and failures. While the part of preventive maintenance is…...
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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 usages. “Energized” is the term that signifies that the component…...
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Apr 19, 2021 | By Bishal Lamichhane
Troubleshooting Buchholz relay and recommended actions during transformer operation
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 both operational situations and situations that arise during the commissioning… 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 the site as a complete plant, so it is usually…...
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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 this category in industrial environments, this technical article focuses on…...
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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 or sub-transmission category of power supply at the range of…...
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Jun 01, 2020 | By Bishal Lamichhane
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
12 on-site checks to inspect the transformer’s health
On-site inspection of the substation transformer usually exposes important condition changes and it initiates various suspicions that need to be investigated in detail. As with any other substation equipment, many things could go wrong during the transformer operation. For example,…...
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Nov 11, 2019 | By Edvard Csanyi
