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Why Ground Fault Protection Matters and Which Scheme For Sensing Ground...
A ground fault normally occurs in one of two ways: by accidental contact of an energized conductor with normally grounded metal, or as a result of an insulation failure of... Read more The post Why...
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Neutral earthing systems of generator sets (gensets)
Generator sets have specific features that must be taken into account for protection against electric shocks. Mobile sets cannot be connected to earth and their connection by means of a... Read more...
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The logic behind switchgear interlocking systems in substations
Switchgear interlocking is installed to protect both the equipment and the operator from dangerous situations caused by incorrect equipment operation. It can be categorized as operational interlocking...
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People response to short-term exposure to electric fields of AC transmission...
Short-term exposures to electric fields produced by AC transmission lines and stations can be pretty serious and may be classified according to the type of effect causing a sensation in... Read more...
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5 most important aspects of external protection against the effects of lightning
Analysis of the lightning risk takes numerous factors into consideration. This article will shed the light on one of factors – protection of the structures and its five most important... Read more The...
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Earthing facts and terms you should always remember
While working as an electrical engineer, there are a dozen things you must remember, especially the ones that concern the safety. Whether you are in the electrical design field or... Read more The...
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Electrical design of healthcare facilities (essential system requirements)
Due to the critical nature of the care being provided at healthcare facilities and their increasing dependence on electrical equipment for preservation of life, they have special requirements for...
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Fire behaviour and construction safety precautions for installation of cables...
Although the type of cable and conductor is the determining factor in the fire behaviour of ducts and conduits, the choice of cable tray type and the installation of the... Read more The post Fire...
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Lightning protection system – How much of design and material is really needed?
Within this article, an overview of fundamental principles regarding design and construction of lightning protection system (LPS) will be given. Relevant IEC 62305 standard will be used as a...
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Protective grounding requirements for transmission and distribution lines
This technical article covers protective grounding requirements for steel tower and wood pole supported transmission and distribution lines, and insulated power cables. Protective grounds must be...
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5 substation building services that usually lack of proper design (and make...
This technical article introduces five main principles involved with substation control building and switchyard services that make a lot of troubles to substation crew if poorly designed. The article...
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Why substation equipment fails and why it’s wise to think of that much before...
This technical article will try to shed some light on why and how electrical equipment fails and what’s happening before and during the failure of particular substation equipment like switchgear,......
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Why earth leakage protection is necessary in low voltage installations
We all should know that low voltage circuit breakers and fuses operate in the event of excess current arising from overload conditions and faults. As the statistics say, the most... Read more The post...
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When can we say that earthing arrangement is safe for people (confusions in...
This article will analyse some of the most important safety issues related to design and use of LV electrical installations. Besides explanation of relevant terms in this field defined by... Read more...
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The essential HV/EHV substation auxiliary facilities you should know about
Nowadays, HV/EHV substations have become pretty complex from the design point of view. Besides the main electrical equipment, which must be designed and selected correctly, there are several auxiliary...
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How system earthing keeps you and the network safe
The term “earthing” consists of several functions which only have “utilizing the earth” in common. Before describing the system earthing, it can be of interest to know a bit about... Read more The...
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Why remote racking of LV/MV circuit breakers is a smart investment but so...
Circuit breaker racking is one of the most prominent exercises in the power system that exposes an operator to risk. A sudden malfunction during the racking process can induce catastrophic... Read...
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