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Category 'Protection' - Technical Articles

“Protection” category refers to technical articles dedicated to relay protection of various power substation and transmission & distribution equipment, such as low- medium- and high-voltage switchgear, transformers, capacitor banks, cables, transmission lines, electric motors and generators, and so on. Great attention is paid on circuit breaker schematics, such as tripping, closing and blocking coil arrangements, etc.

Power Substation

Comprehensive Guide to Secondary Injection Testing of the Current Transformers (Part 1)

Welcome to the first part of our three-part series on current transformers (CTs) and their secondary circuits. In this series, we will delve into the intricacies of CT operation, explore the importance of secondary injection testing, examine the concept of…...

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Jun 19, 2023 | By

Comprehensive Guide to Secondary Injection Testing of the Current Transformers (Part 1) - CTs and their Secondary Circuits
Power Substation

Primary injection testing and CTs commissioning in power substations (for true engineers)

Primary injection testing is a vital procedure in the commissioning and maintenance of current transformers (CTs). These transformers are integral components of electrical systems, enabling precise measurement and effective protection of electrical currents. In this article, we will explore the…...

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May 29, 2023 | By

Primary injection testing and CTs commissioning in power substations (for true engineers)
Power Substation

Dos and don’ts in creating operation logic diagrams for LV and MV switchgear feeders

Dealing with the switchgear operation logic diagrams is like setting the brain functions. It needs vigilance and patience from design engineer supported with hours and hours of testing and operation simulations. This technical article brings some light to the essence…...

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May 15, 2023 | By

Dos and don'ts in creating operation logic diagrams for LV and MV switchgear feeders
Energy and Power

Earthing system for a complex project: Analysis, calculation and installation (XLSX, DWG)

Creating safety measures against various faults that can be fatal for a human is a critical task that electrical designers and site engineers must consider in any project. Furthermore, instability of the electrical system and equipment damage can result from…...

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May 01, 2023 | By

Earthing system for a complex project: Analysis, calculation and installation (XLSX, DWG)
Power Substation

Dos and don’ts in designing substation layout, implementing interlocks, operation and special applications

It’s always good to emphasize that substations can be a major headache for staff if they’re not designed properly. Because of this, it is essential for the success of a substation’s operation and maintenance to have a well-designed layout, an…...

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Apr 17, 2023 | By

Dos and don'ts in designing substation layout, implementing interlocks, operation and special applications
Power Substation

What is the substation automation system (SAS) and what you MUST know about it

Substation automation system, or shorten SAS, is not a new term, its been in use for the last 30 years. However, substation automation as a technology has rapidly evolved in the last 10 years and nowadays represents a highly advanced…...

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Mar 27, 2023 | By

What is the substation automation system (SAS) and what you MUST know about it
Power Substation

Technical specification of switchyard equipment in a nutshell (how-to guidelines and advice)

This article provides details on the various types of switchyard equipment, including power transformers, circuit breakers, disconnectors, and more. The technical specifications (or tender specifications) for each individual piece of equipment are laid forth. The related course, guide or article…...

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Mar 20, 2023 | By

Technical specification of switchyard equipment in a nutshell (how-to guidelines and advice)
Energy and Power

Specific electrical design tips for a few most common types of commercial facilities

This technical article covers some specific considerations (modern power supply, electric distribution, transportation, lighting controls, and communication systems) for a few most common type of commercial facilities such as banks, colleges and universities, fire stations, health care facilities and office…...

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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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Mar 06, 2023 | By

Specific electrical design tips for a few most common type of commercial facilities
Power Substation

The art of fire protection and measures in Air-Insulated Substations (AIS)

These days, the dependability of the infrastructure used to distribute energy to customers is a key metric for evaluating electrical utility companies. A single unscheduled interruption may be disastrous for a utility company’s finances and reputation. Most customers lack the…...

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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 20, 2023 | By

The art of fire protection and measures in Air-Insulated Substations (AIS)
Power Substation

Switchgear interlocking system and arc protection that you MUST consider in the design

There are at least two safety requirements that medium-voltage switchgear MUST fulfil: an interlocking system and an arc protection system. Yes, these two systems are crucial in terms of safety because they protect not only the operator and other substation…...

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Jan 30, 2023 | By

Switchgear interlocking system and arc protection that you MUST consider in the design
Low Voltage

Inside the Modern Digital Low Voltage Switchgear: Devices and Communications

Low voltage switchgear is one of the significant pieces of equipment utilized for power distribution in electrical systems of all types of process and chemical plants. There is a migration from conventional low-voltage switchgear to the current digital version due…...

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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 12, 2022 | By

Inside the Modern Digital Low Voltage Switchgear: Devices and Communications


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