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Technical Articles

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
Electric Motor

The Design Basics Of Motor Protection Circuit Breaker

Application-specific variations of the MCCB, these breakers combine the short-circuit and isolation functionality of the MCCB with the motor overcurrent protection of a traditional overload relay. MPCBs are UL 489 Listed… Read more

Dec 07, 2015 | By Edvard

Learn Design Of Motor Protection Circuit Breaker
Energy and Power

Learn How To Specify Current Transformers

Current transformers are used to supply information to the protective relays and/or current, power and energy metering “instruments”. For this purpose they must supply a secondary current proportional to the… Read more

Dec 05, 2015 | By Edvard

Learn How To Specify Current Transformers


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