Lub DC chav hluav taws xob muaj ob lub cev ua piv txwv piv txwv piv txwv li sab caj npab thiab armature armature thiab coil. Thaum hluav taws xob hluav taws xob yuav tsum tau muab, cov kauj yuav energized thiab yuav muaj cov duab sib nqus thiab yog li lub caij nplooj ntoo sib nqus yuav zaws. Raws li lub caij nplooj ntoos hlav torque yuav compressed thiab armatures yuav nyiam nrog txhua lwm yam, nres qhia yuav txav deb ntawm cov nruas nres thiab cov nruas tsheb yuav tuaj yeem tig tau.
Thaum fais fab hluav taws xob yuav raug rho tawm, hauv qhov xwm txheej ntawd coil yuav sib cais thiab ib qho kev sib xyaw ua ke tau sib cais thiab nres khau yuav raug nias tiv thaiv nres nruas thiab nres nruas Kev sib hloov yuav raug tso tseg. Cia peb xav txog kev ua haujlwm ntawm DC electromagnetic nres hauv oto crane, toteque lub caij nplooj ntoos hlav ntawm DC electromagnetic yuav muaj peev xwm los ntawm crane los tuav lub nra ntawm txhua qhov taw tes.
