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Monthly Archive for: «April, 2015»

5 Types of equipment which generates the most harmonics

Harmonic load currents are generated by all non-linear loads. This includes: Switched mode power supplies (SMPS) Electronic fluorescent lighting ballasts Variable speed drives (VSDs) Uninterruptible power supplies (UPS) Magnetic-cored devices The majority… Read more

Apr 27, 2015 | Edvard

Basic Stand-Alone Application of Reclosers

Reclosers are self-contained fault interrupting and reclosing devices, specifically designed for overcurrent protection in secondary distribution systems. Reclosers are situated in selected locations within the overhead distribution network. With the correct protection… Read more

Apr 15, 2015 | Edvard

Back To School – Let’s Calculate Current I3

Referring to the following circuit, calculate direct current I3: Using Kirchhoff’s laws; Using nodal analysis; Applying Thévenin’s theorem at nodes A and B. – KCL stands for Kirchhoff’s Current Law – KVL… Read more

Apr 10, 2015 | Edvard

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