INVESTIGATION OF THE MAGNETIC FIELD DISTRIBUTION ON THE SURFACE OF AMF CONTACTS
Journal Title: Proceedings of Electrotechnical Institute Prace Instytutu Elektrotechniki - Year 2017, Vol 64, Issue 276
Abstract
The axial magnetic field distribution (AMFD) on the contact surface plays an important role in short circuit current interruption. To minimize erosion of the contact the AMFD should be uniformly distributed over the contact plates. During theoretical analysis of bipolar contacts, the design of the contact coil and the slots made in the contact’s plate, as well as the orientation of the steady contact relative to the moving contact were taken into account. The FLUX 3-D computer program was used for the calculation of the AMFD and the results were compared and analyzed. To investigate the distribution of arc spots on the contact plate surface experiments were conducted in a dismountable vacuum chamber during a 15kA short circuit current interruption.<br/><br/>
Authors and Affiliations
Krzysztof KRASUSKI, Tomasz BŁAŻEJCZYK, Henryk SIBILSKI, Sławomir KOZAK
Keywords
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