Nruab nrab- zaus induction cua sov rauv ua haujlwm raws li lub hauv paus ntsiab lus ntawm electromagnetic induction. Thaum ib qho alternating tam sim no ntws los ntawm induction kauj, nws tsim ib qho chaw sib nqus sib nqus ntawm tib zaus. Qhov no magnetic teb induces ib tug electromotive quab yuam thiab generates eddy tam sim no nyob rau hauv lub hlau workpiece muab tso rau hauv lub kauj; cov cua kub uas ua los ntawm cov eddy tam sim no overcoming lub workpiece cov hluav taws xob tsis kam ua rau cua sov. Cov txheej txheem cua sov induction suav nrog cov nyhuv ntawm daim tawv nqaij, cov nyhuv sib thooj, thiab cov nyhuv nplhaib. Ntawm cov no, cov nyhuv ntawm daim tawv nqaij txiav txim siab qhov tob ntawm tam sim no nkag mus rau hauv tus neeg xyuas pib; forging cua sov kub tshaj 800 degree, daim tawv nqaij qhov tob Δ tuaj yeem yooj yim rau cov qauv Δ=503(ρ/f)¹/² (in meters).
Lub hauv paus ntsiab lus feem ntau siv "AC-DC-AC" kev hloov pauv-xws li KGPS-hom thyristor-raws li nruab nrab- zaus fais fab mov- suav nrog peb- theem tswj tag nrho choj rectifier Circuit Court, ib lub voj voog lim. Qhov zaus ntawm qhov hloov pauv nruab nrab- zaus fais fab mov feem ntau yog li ntawm 500 Hz txog 20 kHz.