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Column: “An engineer’s diary”
The column “An engineer’s diary” by Prof. Miller is available on the JMAG website.
It is updated once a month, and the following columns have been published.
[No. 80] The Shadow-Winding
The shadow-winding is useful for measuring generated EMF and inductance in prototype electric machines. Typically it consists of a complete phase winding wound in the same slots as one of the main phase windings, but with fewer turns and much thinner wire.
In many cases the slots are so tightly packed that any shadow-winding must be installed at the same time as the main winding, closely affixed to it by tapes to prevent mechanical damage. In some cases the packing is so tight that it is not feasible to insert a shadow winding at all. In a prototype it may still be possible to divide the main winding with tappings and an isolated section consisting of a small fraction of the turns in each coil, but if even this is not possible the shadow-winding will probably have to be abandoned…Read more
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Coiltech Novi 2025
POWERSYS of JMAG Distributor will exhibit at Coiltech Novi 2025.
Date: Jun.11 (Wed.) – Jun.12 (Thu.)
Venue: Suburban Collection Showplace (Novi, USA)
Booth number: #A34
