Ol Motor Stata
Ol liklik mota i ken stat long rot bilong konektim ol long wanpela pawa sos yusim wanpela swit o 'circuit breaker'. Ol bikpela mota i nidim wanpela spesel switsing yunit ol i kolim mota stata o mota kontekta. Taim yu statim, wanpela dairekt-on-lain (DOL) stata i save konektim mota stret long pawa sos. Ol 'reduced-voltage starters', 'Y-Δ switching starters', o ol 'soft starters' i save konektim pawa sos i go long mota long rot bilong wanpela 'voltage-reducing circuit, bihain long dispela 'voltage' i save go antap isi isi o long ol step. Ol liklik 'motor starter' em ol swit we ol i save yusim long han, tasol ol bikpela 'motor' o ol aplikesen we i nidim 'remote' o 'automatic control' i save yusim ol 'magnetic contactor'. Ol pawa saplai we i gat namel -voltej (inap olsem sampela kilovolt) i save yusim ol 'circuit breaker' olsem 'switching element'.
Voltej Stata we i go daun
Tupela o moa kontekta i ken yusim long givim liklik volteji taim moto i stat. Sapos yu yusim wanpela 'autotransformer' o 'series inductor', yu ken putim liklik 'voltage' i go insait long ol 'terminal' taim yu kirapim 'motor', na dispela i daunim 'starting torque' na 'inrush current'. Taim spit bilong mota i kamap long wanpela pesen bilong spit bilong en, stata i save senisim ol 'motor terminal' i go long nomol voltej input. Bikos ol 'autotransformer' na 'series inductors' i save kisim hevi 'starting current' tasol taim ol i stat, we i ken stap inap sampela seken tasol, 'rated voltage' bilong ol i liklik long 'rated voltage' bilong ol long yusim oltaim long wankain 'current'. Taim bilong senisim voltej i go long nomol voltej i ken kamap long taim o yusim wanpela 'current sensor', senis i save kamap taim 'current' i stat long go daun. Korndörfer autotransformer starter i bin kisim paten long 1908.
Adjustable-speed drive (ASD)
Wanpela 'variable-speed drive' (VSD) em i wanpela set bilong ol masin we inap long stretim spit bilong wok bilong wanpela 'mechanical load'. Wanpela ASD i gat wanpela moto, wanpela spit kontrola o pawa konveta, na ol narapela ikwipmen o instramen. Tasol, planti taim, ol i save yusim dispela tok "draiv" long makim tasol kontrola. Planti nupela ASDs tu i ken mekim ol 'soft start' long ol 'motor'.
Gutpela Kontrola
Wanpela gutpela kontrola i yusim wanpela 'microprocessor' long bosim ol pawa komponen we ol i yusim long bosim moto. Em i ken sekim tu 'motor load' na makim 'motor torque' wantaim 'load'. Dispela i kamap long rot bilong daunim AC voltej we i go long mota, na long wankain taim daunim karent na pawa we i no wok gut. Olsem na, sapos mota i wok aninit long lait lod kondisen longpela taim, dispela rot antap i ken skelim mak bilong impruvmen long eneji efisiens. Long dispela taim, hat, nois na guria i save kamap tu i go daun.
