SVIBOR - Project code: 2-05-239

MINISTRY OF SCIENCE AND TECHNOLOGY

Strossmayerov trg 4, HR - 10000 ZAGREB
tel.: +385 1 459 44 44, fax: +385 1 459 44 69
E-mail: ured@znanost.hr

SVIBOR - Collecting Data on Projects in Croatia

Project code: 2-05-239

Magnetic phenomena in step-lap transformer core

Main researcher: VALKOVIĆ, ZVONIMIR (51515)

Assistants

REZIĆ, ANTE (93615)

Type of research: applied
Duration from: 01/01/91. to 12/31/94.

Papers on project (total): 22
Papers on project quoted in Current Contents: 2

Institution name: Končar, Institut za elektrotehniku, Zagreb (8)
Department/Institute: Transformer Department
Address: Baštijanova b.b.
City: 10000 - Zagreb, Croatia

Communication: Phone: 385 (0)1 318 606; Fax: 385 (0)1 318 815

Summary: Core loss, magnetizing current and noise level of transformer core with step-lap joints are investigated. The following parameters are considered: core induction, core design, dimensions of laminations, overlap length, number of overlaps in one layer and number of sheets per layer. The investigation is experimental, on a large number of scale models, and theoretical, using numerical field and loss calculation.

Keywords: Transformer, Core, Core loss, Magnetizing current, Noise.

Research goals: The aim of the investigation is the explanation of the phenomena in transformer core with step-lap overlap in joints, and verification of the influence of that design on core loss, magnetizing current and noise level. It should be found how different parameters influence magnetic characteristics of the core. Possible practical applications of this investigation could give a reduction of: transformer core loss of about 10%, magnetizing current of about 50% and noise level of about 2-5 dB.

Other information about the project.


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Last update: 10/02/95
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