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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.

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 (and how I fixed things up)

Reliable and secure electric power delivery is dependent on power transformers’ reliability that is enhanced significantly by sound test plans. These test plans shall be prepared by both manufacturers and end-users to develop thorough and effective plans and specifications. The…...

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Apr 29, 2021 | By

My worst experience in testing and commissioning power transformers (and how I fixed things up)
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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With EEP's premium membership, you get additional essence that enhances your knowledge and experience in low- medium- and high-voltage engineering fields.
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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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This content is not available in your premium membership plan. Please upgrade your plan in order to access this content. You can choose an annually based Basic, Pro, or Enterprise membership plan. Subscribe and enjoy studying specialized technical articles, online video courses, electrical engineering guides, and papers.
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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
Power Substation

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 and ground protection, as they account for a considerable number…...

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Feb 22, 2021 | By

The mystery of nuisance tripping incidents in transformer protection that worry engineers
Medium Voltage

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 with the mechanism of fault detection, trip coil operation, remote…...

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Feb 08, 2021 | By

Sizing of DC charger 110V (Auxiliary power supply used in primary/secondary substation) for MV panels
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 the site as a complete plant, so it is usually…...

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This content is not available in your premium membership plan. Please upgrade your plan in order to access this content. You can choose an annually based Basic, Pro, or Enterprise membership plan. Subscribe and enjoy studying specialized technical articles, online video courses, electrical engineering guides, and papers.
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Feb 01, 2021 | By

Recommendations for the successful erection of medium voltage switchgear
Power Substation

Learn how to read and analyze control circuits of MV gas insulated switchgear (GIS)

The single-line diagram example for a double-bus and a single breaker clarifies several concepts that are for the GIS only. It is challenging to comprehend and grasp the control circuits due to the interrelated components and functions that impose additional…...

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This content is not available in your premium membership plan. Please upgrade your plan in order to access this content. You can choose an annually based Basic, Pro, or Enterprise membership plan. Subscribe and enjoy studying specialized technical articles, online video courses, electrical engineering guides, and papers.
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Jan 25, 2021 | By

Learn how to read and analyze control circuits of MV gas insulated switchgear (GIS)
Power Substation

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 (AIS), on the other hand, has air as an insulating…...

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Jan 11, 2021 | By

Mastering GIS control circuits – AC/DC auxiliary circuits and circuit breaker closing circuit
Energy and Power

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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This content is not available in your premium membership plan. Please upgrade your plan in order to access this content. You can choose an annually based Basic, Pro, or Enterprise membership plan. Subscribe and enjoy studying specialized technical articles, online video courses, electrical engineering guides, and papers.
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Dec 28, 2020 | By

Ten most dangerous mistakes in the operation of low voltage switchgear (you should be aware of)
Medium Voltage

Mastering switchgear control circuits: trip, BCPU and alarm, indication, and interlock circuits

In the previous article, an introductory part of the switchgear control circuits, including DC/AC circuits and breaker closing circuit, was discussed thoroughly. This article continues the discussion with a breaker trip circuit, bay control-protection unit (BCPU) & alarm circuit, indication…...

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This content is not available in your premium membership plan. Please upgrade your plan in order to access this content. You can choose an annually based Basic, 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.
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Dec 14, 2020 | By

Mastering switchgear control circuits: trip, BCPU and alarm, indication, and interlock circuits
Medium Voltage

Mastering switchgear control circuits – AC/DC circuits and circuit breaker closing circuit

Control circuits are vital to the operation of medium voltage switchgear. The integrity of these control circuits is essential to the switchgear’s proper operation, so commissioning and maintenance activities records are extremely important for troubleshooting practices. Furthermore, one has to…...

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This content is not available in your premium membership plan. Please upgrade your plan in order to access this content. You can choose an annually based Basic, 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.
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Nov 30, 2020 | By

Mastering switchgear control circuits – AC/DC circuits and circuit breaker closing circuit
Medium Voltage

Learn how to draft the layout and arrangement drawing of 33/11 kV distribution substation

Medium voltage substations fall within the sub-transmission power system category, which feeds the bulk consumers directly or facilitates the secondary and tertiary distribution to small industrial and household consumers over an area after a suitable stepping down of voltage. Because…...

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Nov 17, 2020 | By

Learn how to draft the layout and arrangement drawing of 33/11 kV distribution substation


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