Ayrton-Perry winding

Ayrton-Perry winding

[¦er·tən ¦per·ē ‚wind·iŋ]
(electricity)
Winding of two wires in parallel but opposite directions to give better cancellation of magnetic fields than is obtained with a single winding.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.