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Category 'Premium Content' - Technical Articles

Technical articles in the “Premium Contents” category are fully accessible to Premium Members only. Electrical engineering guides, specialist technical articles, and papers authored by experienced electrical engineers are all available to premium users. As an electrical engineer working in the Low-, Medium-, or High-Voltage fields, it will help you develop the professional technical skills you’ll need on the job.

Metering

Dos and don’ts for the installation and operation of energy metering in LV/MV substations

Energy meters are one of the most important components for monitoring and data acquisition in a power system network with roles in every part of the power system network, from the generation to the commercialized end-users, through multiple transmission and…...

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Aug 23, 2021 | By

Energy metering in LV/MV substations and utilities: Dos and don’ts in installation and operation
Power Substation

Eleven deadliest mistakes made by young and unmindful substation engineers

Substation operation and maintenance is one meticulous and critical job that requires a great deal of expertise and familiarization. The complexity and scrutiny increase exponentially as the focus shifts to a higher voltage level, as the margin for error tends…...

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Aug 09, 2021 | By

Eleven deadliest mistakes made by young and unmindful substation engineers
High Voltage

MV/HV switchgear (circuit breaker) switching capability and suitability for specific applications

Circuit breakers (CBs) do interrupt fault currents and close onto faults. Besides, they could be used as isolation devices like disconnectors. The CBs manufacturers’ brochures and standards provide extensive data to select and assess the CBs performance, but designers must…...

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Jul 26, 2021 | By

MV/HV switchgear (circuit breaker) switching capability and suitability for specific applications
Power Substation

Load flow and short circuit analysis of a MV substation (case study 33/11 kV substation in ETAP)

Designing and operating a substation is a tiresome and challenging task, which requires hefty capital, a well-trained workforce, and lots of time. With the ever-expanding nature of electricity distribution, the MV/LV power distribution substations are mushrooming everywhere. Sometimes, they are…...

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Jul 12, 2021 | By

Load flow and short circuit analysis of a MV substation (case study 33/11 kV substation in ETAP)
Maintenance

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

Uprating and expanding existing power substations (good practice and recommendations)
Electric Motor

Guidelines for selecting the proper Variable Frequency Drive (VFD) for motor applications

This article addresses the Variable Frequency Drive (VFD) concept in several aspects that matter the most in selecting the proper VFD for applications. One of the important factors is the control type required for a given application since it is…...

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Jun 28, 2021 | By

Guidelines for selecting the proper Variable Frequency Drive (VFD) for motor applications
Maintenance

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

Troubleshooting operation of distribution substation
Power Substation

Schematics and docs needed for communication systems of substation protective relaying system

Communication systems of electric utilities have become increasingly critical to electric system protection, operation, and maintenance. For fast tripping and clearing of system faults, communication-aided relaying has become a common protection scheme, particularly in line protection. Control centers depend on…...

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Jun 09, 2021 | By

Schematics and docs needed for communication systems of substation protective relaying system
Premium Content

Power transformers testing and commissioning at the site (instructions and precautions)

Since I started the commissioning work 30 years back, transformer commissioning consisted of more tests, but nowadays, the number of tests has been reduced due to costs and time-saving. This article will go through complete testing that needs to be…...

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May 31, 2021 | By

Power transformers testing and commissioning at the site
Low Voltage

Dos and don’ts in operating LV/MV circuit breakers, relays, disconnectors and fuses

Typically, protecting an electrical system, low-voltage, medium-voltage, or high-voltage, whichever it is, does not entirely depend upon a single component. The protection system is often a coordinated combination of multiple switching and protection units working in tandem to acquire the…...

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May 17, 2021 | By

Dos and don’ts in operating LV/MV circuit breakers, relays, disconnectors and fuses
Premium Content

My worst experience in testing and commissioning power transformers

This technical article discusses a comprehensive approach to conduct transformer commissioning successfully. The set of standards employed, test classes, and test sequence shall be identified beforehand. The pre-commissioning phase is vital in finding any issues prior to engaging in the…...

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Apr 29, 2021 | By

My worst experience in testing and commissioning power transformers
Low Voltage

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

Learn how to operate an unknown energized low voltage switchgear (practical experience)
Power Substation

Learn to successfully analyze single-line, schematic, P&ID, logic, and wiring diagrams

Engineering tasks require a good skill in reading and interpreting information on drawings. Engineering drawings are the industry cornerstone of conveying detailed and precise information on how to construct, troubleshoot, maintain, and operate a system. Basic requirements are needed to…...

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Apr 05, 2021 | By

Practical advice in successful reading single-line, schematic, P&ID, logic, and wiring diagrams
Low Voltage

Learn how to draft the layout of an LV switchgear (sizing, designing equipment, installations)

Low voltage (LV) switchgear is a broad terminology that includes a wide range of equipment like circuit breakers, switches, offload isolators, MCCBs, etc. within the 1 kV rating required to protect the LV system. The most common use of LV…...

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Mar 22, 2021 | By

Learn how to draft the layout of an LV switchgear (sizing, designing equipment, installations)
Power Substation

Fundamental electrical schemes of connections for supply at generator voltage and higher

This technical article will shed some light on fundamental schemes and arrangements of connections for supply at generator voltage, higher than generated voltage, and a few basic transmission schemes. It is important to note that the choice of the electrical…...

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Mar 08, 2021 | By

Fundamental electrical schemes of connections for supply at generator voltage and higher


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