Thumb Rules for Working in Switchyard and HV Areas
To be honest, working at switchyards and substations requires a thorough and true understanding of hazards and control measures before progressing to Power System Access. Only individuals with the proper authorization should operate within switchyards or high voltage zones. Engineers… Read more
Aug 18, 2025 | By Edvard Csanyi

Best Practice in Substation Oil Containment
Numerous firms in emerging sectors offer conceptual substation oil containment solutions that remain unproven yet have been deployed. This has resulted in several installations of containment systems that are functionally ineffective. There have been and continue to be assertions that… Read more
Jun 23, 2025 | By Edvard Csanyi

Best practice for providing LV supply into high earth potential rise sites in substations
During the passage of earth-fault current a substation earth electrode is subjected to an earth potential rise. Potential gradients develop in the surrounding ground area and these are highest adjacent to the substation earth electrode. The earth potential rise reduces… Read more
Dec 23, 2024 | By Edvard Csanyi

What is Interlocking in substations, and what is it for?
Interlocking in substations is a critical aspect of power system protection and control, designed to ensure the safe and efficient operation of substation equipment. The primary objective of interlocking is to prevent hazardous situations, such as energizing an earthed circuit…...
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Dec 16, 2024 | By Muhammad Kashif

Electrical thumb rules for staying safe and alive
How can one stay safe and alive while working in a power system? That’s a good question; however, there are a dozen answers. But let’s start with the first answer. The primary concerns about electrical safety are the unseen nature… Read more
Nov 27, 2024 | By Edvard Csanyi

Electrical thumb rules for switching, isolating and earthing
It is essential that the electrical engineers, or operators who will be in charge of switching, isolating, and earthing operations of the switchgear have a good understanding of the rules that must be followed. In addition, it is of the…...
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Oct 21, 2024 | By Edvard Csanyi

Automated, but hackable. Is power grid in your country safe from cyberattacks?
Yes, many of today’s power grids are very sophisticated and automated. Every single event and piece of equipment is tracked, controlled, measured, and protected. But things aren’t as bright as it seems. As we can see, it turns out that…...
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Oct 14, 2024 | By Edvard Csanyi

Practical lesson in grounding and bonding of Gas-Insulated Switchgear (GIS)
With the exception of SF6-to-air bushings terminals, all active portions of gas-insulated switchgear (GIS) are contained within grounded enclosures, which means that they are not susceptible to inadvertent contact. This makes gas-insulated switchgear intrinsically safe. In addition, numerous grounding procedures… Read more
Oct 09, 2024 | By Edvard Csanyi

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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Mar 06, 2023 | By Edvard Csanyi

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 Edvard Csanyi

Failure cases of LV/MV electrical equipment and what should have been done (to avoid them)
Generally, the useful life of power system components heavily depends upon the level of care given to them and their duty cycles. For example, a circuit breaker on mainly switching duty can last 40 to max. 50 years. The majority…...
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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 19, 2022 | By Edvard Csanyi

The ground is not just ground! At least not in hospitals, medical, and dental practices
This technical article analyzes the safety requirements against indirect contact employed in particularly special medical locations (e.g., hospitals, medical, and dental practices, etc.), where environmental conditions may increase the risk of indirect contact and therefore the electroshock, precisely microshock. Generally… Read more
Nov 21, 2022 | By Edvard Csanyi

Grounding of mine power distribution systems
The application of electricity to the mining industry is a distinctive area of both mining engineering and electrical engineering. The difficult environment, the dynamic power loads, the cyclic and mobile operation and stringent safety requirements that characterize mining, all place… Read more
Nov 07, 2022 | By Edvard Csanyi

How to handle overvoltages before any damage is done? Surge protection in a nutshell.
Prevention is better than cure, we all know this, and this is true not only for people, but also for the health of your electrical and electronic components and equipment. Smart and cost-effective strategies demand an investment in surge protection…. Read more
Apr 11, 2022 | By Edvard Csanyi

Emergency breaking, stop and isolation intended to eliminate danger as quickly as possible
As their name indicates, emergency operations are intended to eliminate, as quickly as possible, a danger that occurs unexpectedly. The emergency break is designed to cut off the electrical power, whereas the emergency stop takes account of the danger of… Read more
Feb 14, 2022 | By Edvard Csanyi
