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Parallel switching phenomenon when MV/HV circuit breakers interrupt a shared...
Parallel switching occurs when two or more circuit-breakers are tripped to interrupt a shared fault current. This is typically the case for such bus arrangements as a double breaker,...
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Practical design knowledge in harmonics distortion and power factor...
Nowadays, if you do not consider harmonics distortion when designing a new network, you missed the whole point of the network design. Yes, really. The sooner you realize that harmonics... Read more...
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Learn how to prevent unplanned downtime and keep critical operations up and...
Power availability and reliability is a persistent problem and no matter the industry, or type of facility you run, downtime presents a costly risk to your operations and bottom line.... Read more The...
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The most popular wiring schemes and design essences of a Ring Main Unit (RMU)
In terms of operational requirements, it is pretty evident what a customer expects out of a Ring Main Unit – a hassle-free and uninterrupted distribution of power supply to electrical... Read more The...
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Medium voltage switchgear: Important design considerations and applications
This technical article explains various aspects of the application of medium voltage switchgear and highlights the considerations for the selection of suitable circuit breakers for different...
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LV/MV power substation equipment and wiring requirements you must understand
The space requirements of a power substation depend on the equipment to be housed, and on whether a new building can be erected for it or it has to be... Read more The post LV/MV power substation...
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Failure cases of LV/MV electrical equipment and what should have been done...
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... Read more The...
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How to design the power supply for data centres and airports while megawatts...
The first choice for service and distribution voltage is almost always 480 volts. Why is that? Well, it’s because it’s traditional, it has a safe design and specifications are already... Read more The...
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Six different ways to start a medium-voltage motor you should know about
The AC induction motor is a key component of the modern world economy. These motors are used in industrial facilities all over the world to power the equipment that boosts... Read more The post Six...
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Switchgear interlocking system and arc protection that you MUST consider in...
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......
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Thoughtful considerations to design MV/LV distribution substations for...
The installation of a new MV/LV electrical substation is often part of a more global project, and it is not always the subject of very detailed attention. However, the consideration... Read more The...
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Capacitor banks in substations: Schemes, relay settings, and protective measures
Let’s discuss capacitor banks, but this time, not the basics. Let’s study the double-star capacitor bank configuration and protective techniques used in the substations. How important is to choose...
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Modern practice for LV/MV substation and power distribution systems within...
In the present era, the presence of reliable and uninterrupted electricity is commonly assumed in the majority of nations. Nevertheless, in many nations, this is susceptible to frequent disruptions...
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BESS (Battery Energy Storage Systems) in LV and MV Power Networks: Practical...
This article aims to inform the reader about the applications, procurement, selection & design, and integration of BESS (battery energy storage systems) into LV and MV power networks. The...
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Design Engineering For Battery Energy Storage Systems: Sizing, Selection and...
In this technical article we take a deeper dive into the engineering of battery energy storage systems, selection of options and capabilities of BESS drive units, battery sizing considerations, and......
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Good operating practices for switchgear circuit breakers and contactors
The purpose of this guideline is to provide suggested practices for the operation and inspection of medium voltage (2 to 13.8 kV) and low voltage (200 to 480 volt) draw-out switchgear circuit breakers...
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How to configure medium voltage switchgear: Key influences and stress variables
Let’s discuss the most critical factors that influence the correct configuration of medium-voltage switchgear. As you will see below, for the most common applications of MV switchgear, there are at...
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The intricacy of medium-voltage circuit breaker ratings
When you look at the IEC 62271-100 for MV breaker ratings, you will likely find a bunch of rated-something ratings. It could be hard for young engineers to catch up with all ratings, especially since...
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