Maintenance
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Capacitor banks protection, cautions and maintenance tips
It would not be wrong to say that humanity has never consumed so much electricity, and to make the paradox bigger, there is still a lack of energy. The sharp increase in consumption in the last couple of decades has…...
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Apr 04, 2022 | By Rahmatullah Alam
Electrical Machines
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12 essential parameters required for rating large generators
When specifying generators, the first thing that comes to mind is a rating. The machine’s rating is a set of parameters that, simply speaking in engineering terms, describe the generator. These values indicate the generator’s available power output as well…...
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Mar 28, 2022 | By Edvard Csanyi
Power Substation
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Where to start with the design of 132/33 kV substation switchgear and protection systems
The step-down substations make up for more than 80% of total grid substations and are the focal point of sub-transmission and distribution systems. Usually, HV substations within the power transmission grid are assigned with the dual function of switching and…...
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Mar 21, 2022 | By Bishal Lamichhane
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
Energy and Power
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Learn what is inside a modern ATS panel and how to analyze the circuit diagrams
One of the ways to mitigate a successive transfer of power in case of loss of supply, power outage, or scheduled maintenance is the use of a transfer switch. The transfer switch is an electrical device that transfers power from…...
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Mar 07, 2022 | By Chidubem Asogwa
Power Substation
The essentials of necessary auxiliary relays in tripping and control applications
Tripping circuit breakers and operating alarms in control and protection applications usually require more than one relay contact. Tripping relays are used to multiply the number of contacts available, provide isolation between the source and system operating element and meet… Read more
Feb 28, 2022 | By Edvard Csanyi
Power Substation
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How to use Lockout Relay (master trip relay) in substation protection and control design
Lockouts and auto-reclosures are apprentices of power systems protection that have long served to regulate power supply and safeguard important components from probable catastrophes. But are we taking them seriously enough? In implementing the lockout features, apart from their placements…...
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Feb 21, 2022 | By Bishal Lamichhane
Energy and Power
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
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
Cables
Parameters of generators, transformers, lines and cables for vars, voltage and loads control
For a power system to operate efficiently and securely, the importance of the correct and coordinated provision and control of reactive power cannot be overemphasised. It is necessary to examine reactive power requirements under both steady-state and dynamic conditions. Although… Read more
Jan 31, 2022 | By Edvard Csanyi
Power Substation
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The limit of the substation noise level over which it begins to irritate the community
This article will try to shed some light on the most common noise-related concerns associated with existing substations and provide mitigation methods to address these concerns. The continuous noise created by the operation of power transformers and reactors, as well…...
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Jan 24, 2022 | By Edvard Csanyi
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
Power Substation
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Design guide to digital control and communication systems in modern substations
The power system has advanced pretty ahead of days when the power supply mechanism was an enigma, and lighting a bulb was the ultimate goal. Along with the advanced power utilization, the modern power supply system demands control and monitoring…...
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Jan 10, 2022 | By Bishal Lamichhane
Power Substation
Differential protection (87R/∆I) applied to bus connected oil-immersed shunt reactors
Differential protection is the most commonly applied protection function for bus-connected oil-immersed shunt reactors. The function offers instantaneous protection for internal phase to phase and phase to ground faults. Internal in this context means faults located in the area between… Read more
Jan 03, 2022 | By Edvard Csanyi
Energy and Power
Wish you all the strength, courage and clear minds in 2022!
Here we are, at the end of 2021, which was extremely intense for all of us. This year will be remembered for many things, but if you ask me, the most impressive was the global loss of common sense, sadly,… Read more
Dec 31, 2021 | By Edvard Csanyi
