Energy and Power ♛
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My experience in solving problems in the cracker plant using a high-speed bus transfer solution
Incoming power supply details: Two of 6.6kV voltage lines are connected to the cracker plant from the distribution substation through reactors. Captive power plant (electricity generation facility) consists of two…...
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Aug 17, 2020 | By Satish Nurukurthi
Energy and Power
Six differential stator-phase-fault protection (87) for all size generators (you MUST know)
Generally, phase faults at generators rarely occur, but when they do, large fault currents can flow and make a mess. The best protection is differential (ANSI 87), and this type… Read more
Aug 12, 2020 | By Edvard
Electric Motor
Protection of three-phase motors from unbalance (loss of phase and phase rotation)
The most common cause of unbalance for three-phase motors is the loss of phase resulting from an open fuse, circuit breaker, connector, or damaged conductor. Unbalances in other connected loads… Read more
Aug 10, 2020 | By Edvard
Low Voltage
Secondary LV/MV distribution substations in a nutshell (connections and types)
The general method of supplying bulk power to buildings, factories or other complexes is by means of an MV supply, usually at 10 kV, occasionally at 6.6 kV. The installation… Read more
Aug 05, 2020 | By Edvard
Power Substation ♛
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My practical experience in the electrical protection system of industrial generators
A functional protection system installed, commissioned, and maintained on critical equipment like an industrial generator is of high importance. As such, every protection system must have the ability to: accurately…...
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This technical article/guide requires a Premium Membership. You can choose an annually based Plus, Pro, or Enterprise membership plan. Subscribe and enjoy studying specialized technical articles, online video courses, electrical engineering guides, and papers. With EEP's premium membership, you get additional essence that enhances your knowledge and experience in low- medium- and high-voltage engineering fields.Check out each plan’s benefits and choose the membership plan that works best for you or your organization.
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Aug 03, 2020 | By Ezeala Winner
Medium Voltage
Installation guidelines for MV metal-enclosed switchgear and controlgear (IEC 62271-200)
What does it mean ‘metal-enclosed switchgear’? Metal-enclosed switchgear and controlgear are generally assembled from type-tested panels. As per IEC 62271-200 metal-enclosed switchgear installations must be designed so that their insulation… Read more
Jul 27, 2020 | By Edvard
Energy and Power
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
Jul 22, 2020 | By Edvard
Low Voltage ♛
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A case study of fault level calculations for a MV/LV network using direct method
This technical article represents the case study of fault level calculations for an MV/LV network using the direct method. There are many advantages of the direct approach, and the main…...
Premium Membership Required
This technical article/guide requires a Premium Membership. You can choose an annually based Plus, Pro, or Enterprise membership plan. Subscribe and enjoy studying specialized technical articles, online video courses, electrical engineering guides, and papers. With EEP's premium membership, you get additional essence that enhances your knowledge and experience in low- medium- and high-voltage engineering fields.Check out each plan’s benefits and choose the membership plan that works best for you or your organization.
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Jul 19, 2020 | By Sivakumar K
Power Substation
Control system equipment that supervises, protects and controls the substation operation
The control system equipment in a substation is a vital part that supervises, protects and controls the transmission of electrical power. The increasing complexity in the substations of today, together… Read more
Jul 13, 2020 | By Edvard
Protection
Protection coordination practices in distribution systems with distributed generation
Generally, in most of the countries that cover large area, there are three types of distribution systems: urban, suburban, and rural. Each type of them has its own features regarding… Read more
Jul 08, 2020 | By Edvard
High Voltage
How to shrink three-phase AC high voltage substation and optimize cost and space
Nowadays, when every cent is essential when building a substation, it is imperative to optimize each HV equipment without compromising functionality. This technical article deals with a few solutions to… Read more
Jul 06, 2020 | By Edvard
Low Voltage ♛
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My experience and guidance in the design and electrification of a modern airport
The electrical systems for airports require proper quality installations and consideration for features usually not involved in other electrical installations. In this article, we will be discussing the general elements…...
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This technical article/guide requires a Premium Membership. You can choose an annually based Plus, Pro, or Enterprise membership plan. Subscribe and enjoy studying specialized technical articles, online video courses, electrical engineering guides, and papers. With EEP's premium membership, you get additional essence that enhances your knowledge and experience in low- medium- and high-voltage engineering fields.Check out each plan’s benefits and choose the membership plan that works best for you or your organization.
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Jun 29, 2020 | By Bishal Lamichhane
Power Substation
Principles and schemes of busbar and breaker protection in MV/HV/EHV networks
A busbar protection is a protection to protect busbars at short-circuits and earth-faults. In the “childhood” of electricity no separate protection was used for the busbars. Nearby line protection were… Read more
Jun 24, 2020 | By Edvard
Medium Voltage
Primary rated values for medium voltage switchgear often mixed by engineers
It’s not unusual to see that engineers mix terms of primary ratings. If they are not understood well, yes, it’s possible to mix some of them. But it’s essential to… Read more
Jun 22, 2020 | By Edvard
Energy and Power
Electrical insulation testing – Often underestimated until things go really bad
Due to mechanical damage, vibrations, (excessive) heat/cold, moisture/humidity, chemical influences and interactions and aging pinholes, cracks causes moisture and foreign matter to penetrate the surface of the insulation. They create… Read more
Jun 17, 2020 | By Edvard
