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Archive: Category «Energy and Power»

Electric Motor

Protection schemes for generators and motors

It is difficult to define precisely the protection schemes that should be adopted for an electricity distribution system, given the large number of valid alternatives for each situation, but some… Read more

Jan 15, 2016 | By Edvard

Protection Schemes For Generators and Motors
Energy and Power

Underground substations – Out of sight, out of mind

Underground substations help to bring high voltage electricity directly into the city center. The stations are environmentally friendly, almost unnoticeable, and have none of the planning problems encountered by surface-built… Read more

Jan 09, 2016 | By Edvard

Underground substation in urban area - Out of sight, out of mind
Energy and Power

5 good circuit schemes to avoid HV substation outage

High voltage substations are points in the power system where power can be pooled from generating sources, distributed and transformed, and delivered to the load points. Substations are interconnected with… Read more

Jan 02, 2016 | By Edvard

5 good circuit schemes to avoid HV substation outage
Energy and Power

LV Surge Arresters In Action Against Lightning

The site consists of offices (computer hardware, lighting and heating unit), a security post (fire alarm, burglar alarm, access control, video surveillance) and three buildings for the manufacturing process on… Read more

Dec 29, 2015 | By Edvard

LV Surge Arresters In Action Against Lightning
Energy and Power

Smart Ways To Cut Down The Influence Of Harmonics

There are three possible ways of suppressing or at least reducing the influence of harmonics. The fourth way is a special case. Contents: Reducing generated harmonic currents Modifying the installation… Read more

Dec 28, 2015 | By Edvard

3 Ways To Suppress (Or Reduce) The Influence Of Harmonics
Energy and Power

The Basics Of Circuit Breaker Tripping Units

The main objective of circuit breaker tripping units and protective functions in general is to detect faults and to selectively isolate faulted parts of the system. It must also permit… Read more

Dec 21, 2015 | By Edvard

The Basics Of Circuit Breaker Tripping Units
Energy and Power

Learn To Interpret Single Line Diagram (SLD)

We usually depict the electrical distribution system by a graphic representation called a single line diagram (SLD). A single line can show all or part of a system. It is… Read more

Dec 19, 2015 | By Edvard

Learn To Interpret Single Line Diagram (SLD)
Energy and Power

The basics of primary medium voltage switchgear

Primary medium voltage switchgear represents an important part within the primary distribution substation functionality. The switchgear works as a connection node between the outgoing distribution feeders and the in-feeding power… Read more

Dec 14, 2015 | By Edvard

Basics Of Primary Medium Voltage Switchgear


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