Technical White Papers

Measuring Acoustic Noise Emitted by Power Transformers

This paper proposes a new Measurement Standardization Procedure to measure and quantify the acoustic noise produced by power transformers in audio and video equipment under normal and adverse mains conditions. These conditions and the physical mechanisms that cause...

Solving Inrush at the Source

Reprinted from Power Electronics Magazine, Cover Story, April 2004 - The use of special core materials and transformer design/construction techniques overcomes the limitations of common inrush control...

Transformer Based Solutions to Power Quality Problems

Presented September/12/2001 at Powersystems World 2001 Conference in Chicago, USA - In this paper we propose transformer-based solutions to several power quality problems. Elsewhere we have shown how to solve the acoustical noise emission problems. In this paper we...

Power Transformer Attenuates Harmonics

A novel line-frequency transformer design shapes the transformer’s leakage inductance, internal capacitance and resistance to create a low-pass filter that suppresses noise generated by non-linear loads and RF interference. Reprinted from Power Electronics Magazine,...

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