Electric Motor
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 productivity and efficiency. However, during motor start-up, many industrial activities… Read more
Jan 02, 2023 | By Edvard Csanyi
Low Voltage
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How to design the power supply for data centres and airports while megawatts of loads rise fast
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 written around 480 V. UPS and backup aggregate equipment are…...
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Dec 26, 2022 | By Edvard Csanyi
Low Voltage
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Costly Mistakes in LV/MV Systems: Failure Case Studies and Preventative Measures
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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Dec 19, 2022 | By Edvard Csanyi
Low Voltage
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 fitted into an existing building. In the case of an… Read more
Jun 06, 2022 | By Edvard Csanyi
Medium Voltage
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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 applications. Medium voltage switchgear, commonly known as MV switchgear, play a significant role in…...
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Mar 14, 2022 | By Edvard Csanyi
Medium Voltage
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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 loads from one or more available sources. The onus is…...
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Feb 07, 2022 | By Bishal Lamichhane
Energy and Power
Learn how to prevent unplanned downtime and keep critical operations up and running
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. Detecting electrical system vulnerabilities to prevent potential issues while planning… Read more
Jan 17, 2022 | By Edvard Csanyi
Low Voltage
Practical design knowledge in harmonics distortion and power factor correction (PFC)
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 problems are on the rise, the better. Modern power networks… Read more
Aug 30, 2021 | By Edvard Csanyi
Medium Voltage
Special measures needed for switching MV capacitor banks and filter circuits
Switching of medium voltage capacitor banks and filter circuits poses special demands on the circuit-breaker. Potentially critical impacts are the inrush current and the stress of the recovery voltage. This technical article deals with the requirements of capacitor banks without… Read more
Aug 02, 2021 | By Edvard Csanyi
High Voltage
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MV/HV switchgear (circuit breaker) switching capability and suitability for specific applications
Circuit breakers (CBs) do interrupt fault currents and close onto faults. Besides, they could be used as isolation devices like disconnectors. The CBs manufacturers’ brochures and standards provide extensive data to select and assess the CBs performance, but designers must…...
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Jul 26, 2021 | By Salem Alshahrani
High Voltage
Parallel switching phenomenon when MV/HV circuit breakers interrupt a shared fault current
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, breaker-and-a-half, breaker-and-a-third, and ring buses. Ideally, all of the circuit-breakers should… Read more
Jun 07, 2021 | By Edvard Csanyi
Low Voltage
Distribution earthing systems in LV/MV networks (design instructions and precautions)
The electrical earthing system is designed to provide safe and correct operation of the network under normal, earth fault, and transient conditions. During earth fault conditions, large fault currents may flow via the general mass of the earth en route… Read more
Jun 02, 2021 | By Edvard Csanyi
Low Voltage
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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 Bishal Lamichhane
Low Voltage
The essentials of automation applied to distribution systems via PLCs, SCADA, IEDs, and RTUs
Nowadays, it seems that everything we do tends to be somehow automated. The very same is happening in electrical distribution systems. The distribution system at the medium voltage (MV) or low voltage (LV) levels is designed using different structures such… Read more
Mar 15, 2021 | By Edvard Csanyi
Medium Voltage
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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 Bishal Lamichhane
