Editing Linear induction motor (section)

==Construction==
A linear induction motor's primary typically consists of a flat magnetic core (generally laminated) with transverse slots that are often straight cut<ref name="inexpensive">[http://www.manchesteruniversitypress.co.uk/uploads/docs/380117.pdf]{{dead link|date=December 2017|bot=InternetArchiveBot|fix-attempted=yes}}</ref> with coils laid into the slots, with each phase giving an alternating polarity so that the different phases physically overlap.

The secondary is frequently a sheet of aluminium, often with an iron backing plate. Some LIMs are double sided with one primary on each side of the secondary, and, in this case, no iron backing is needed.

Two types of linear motor exist: a ''short primary'', where the coils are truncated shorter than the secondary, and a ''short secondary'', where the conductive plate is smaller. Short secondary LIMs are often wound as parallel connections between coils of the same phase, whereas short primaries are usually wound in series.<ref name=personalView/>

The primaries of transverse flux LIMs have a series of twin poles lying transversely side-by-side with opposite winding directions. These poles are typically made either with a suitably cut laminated backing plate or a series of transverse U-cores.