Electric Motor
Main and auxiliary circuit diagrams of switching three-phase motors via contactor and directly
This technical article will try to shed some light on the main and auxiliary circuit diagrams of switching three-phase motors via contactor and switching directly. We’ll cover some fundamental schematics… Read more
May 16, 2022 | By Edvard
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Learn how to design an optical communication system for a transmission line network
Communication networks are an integral part of interconnected transmission lines in a power grid, analogous to the spinal cord for control signal and information exchange among substations, data hubs, and…...
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May 09, 2022 | By Bishal Lamichhane
Power Substation ♛
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The most common type tests required for medium and high voltage switchgear
Let me put the definition of switchgear type tests this way. A switchgear MUST withstand voltage in normal and abnormal conditions and to carry varying load currents during its lifetime…....
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May 02, 2022 | By Edvard
Energy and Power
The essentials of standby power systems you SHOULD install before the blackout happens
The cost of a standby power system for a business can be pretty high, so it’s essential to weigh all of your options before committing to a piece of equipment…. Read more
Apr 25, 2022 | By Edvard
Power Substation ♛
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Influence of imminent future techs in power substations (trends, IoT design, cyber security)
Advancement in technology is not something unheard of and metaphorically, it has this unique tendency of replicating the pattern of biological evolution. The design and operation of power substations follow…...
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Apr 18, 2022 | By Bishal Lamichhane
Power Substation ♛
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Design overview and optimization 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…...
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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,…...
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Mar 14, 2022 | By Edvard
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…...
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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… Read more
Feb 28, 2022 | By Edvard
Power Substation ♛
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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…...
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Feb 21, 2022 | By Bishal Lamichhane
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…...
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Feb 07, 2022 | By Bishal Lamichhane
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…...
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Jan 24, 2022 | By Edvard
Power Substation ♛
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Design considerations for 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…...
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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… Read more
Jan 03, 2022 | By Edvard
Electric Motor
Eight most damaging overvoltages in industrial systems (root causes and prevention)
Electric insulation in energized systems is continuously under stress. Electric systems are subject to disturbances of many types which unavoidably produce overvoltages. However, the application engineer has at his command… Read more
Dec 20, 2021 | By Edvard
