I-SBW izigaba ezintathu ze-AC voltage stabilizer iyithuluzi lamandla elilawula amandla aphezulu elilungisekayo. Uma i-voltage evela kunethiwekhi yokusekela ihluka ngenxa yamandla okulayisha asebenzayo, ilawula ngokuzenzakalelayo i-voltage yokukhipha ukuqinisekisa ukusebenza okuvamile kwemishini kagesi ehlukahlukene. Lo mkhiqizo ochungechunge uma uqhathaniswa nezinye izinhlobo zomlawuli we-voltage, unamandla amakhulu, usebenza kahle kakhulu, awukho ukuphambuka kwesimo samagagasi, ukulawulwa kwamandla okuzinzile nezinye izinzuzo, usekela umthwalo osetshenziswa kabanzi, umelana nokulayishwa ngokweqile okusheshayo kanye nomsebenzi oqhubekayo omude, ukushintsha ngesandla/okuzenzakalelayo, kunganikeza i-overvoltage. ukuntuleka kwesigaba. ukuhleleka kwesigaba kanye nomshini onephutha kuvikela ngokuzenzakalelayo. Ukuhlanganiswa kalula futhi kusebenza ngokuthembekile (kungenziwa ukubonisa kwedijithali/ukubonisa kwe-analog)