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Technical Articles

Power Substation

Does transformer hum make you nervous? It does me.

Noise is caused by magnetostricition (changes in shape) of the core laminations while the transformer is energized. Transformers emit a low-frequency, tonal noise that people living in their vicinity experience… Read more

May 04, 2016 | By Edvard

Does transformer hum make you nervous? It does me.
Energy Efficiency

How To Reduce Transformer Losses At Design Stage

Design changes to reduce transformer losses, just as in a motor, always involve trade offs. For example, consider varying the cross-sectional area of the transformer core. An increase tends to… Read more

Apr 29, 2016 | By Edvard

How to reduce transformer losses at design stage
Electrical Lectures

AC versus DC. Those were the days…

Take warning! Alternating currents are dangerous. They are fit only for powering the electric chair :) The only similarity between an AC and a DC lighting system is that they… Read more

Apr 13, 2016 | By Edvard

AC versus DC. Those were the days...


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