This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
WardLeonardInternationl.svg Electrical schematic of Ward Leonard Control used for speed regulation of DCmotors WardLeonard svg UTC WardLeonard svg PieterJanR derivative work Biezl talk language WardLeonard svg Uploaded with derivativeFX SVG electric motors SVG electrical diagrams WardLeonard equipment