A qhuav hom grounding transformeryog nyob rau hauv lub rooj sib txoos zaum kawg. Qhov no grounding transformer yog dav siv nyob rau hauv lub teb chaws.
Dab tsi yog grounding transformer:
Lub grounding transformer lossis grounding transformer yog ib qho khoom siv hluav taws xob siv hauv peb-theem fais fab system los muab txoj hauv kev rau hauv av rau ungrounded ib-txoj kev los yog delta-txuas systems. Grounding transformer yog ib feem tseem ceeb ntawm lub hwj chim grid grounding system. Lawv tso cai rau peb-theem (delta-connected) systems kom haum rau theem-nruab nrab loads los ntawm kev muab txoj hauv kev rau tam sim no rov qab mus rau qhov nruab nrab.
Grounding transformers feem ntau yog siv rau:
Muab cov impedance hauv av uas tsis tshua muaj hluav taws xob kom qhov nruab nrab ntawm qhov system nyob ntawm lossis ze rau hauv av muaj peev xwm
Thaum muaj qhov txhaum hauv av dua, qhov loj ntawm qhov hloov pauv hloov pauv yuav tsum raug txwv.
Thaum muaj ib txoj kab-rau-hauv av txhaum, av txhaum tam sim no yog muab.
Tso cai rau theem-tsis nruab nrab load txuas yog tias xav tau
Zigzag grounding transformer
Qhov feem ntau siv hauv av transformer yog ib leeg-winding transformer nrog zigzag winding configuration, tab sis koj tuaj yeem tsim lub delta-winding transformer. Neutral grounding transformers muaj ntau heev ntawm cov tshuab hluav taws xob hauv cov nroj tsuag hluav taws xob thiab cua ua liaj ua teb. Neutral grounding transformers yog qee zaum siv nyob rau hauv high voltage (secondary kis tau tus mob), xws li 33kv, qhov twg lub Circuit Court yuav tsis pub lwm yam grounded; Piv txwv li, yog hais tias lub system yog powered los ntawm ib tug delta-txuas transformer. Lub hauv paus taw tes ntawm lub transformer tuaj yeem txuas nrog los ntawm cov resistor lossis arc suppression coil kom txwv qhov kev txhaum tam sim no ntawm lub kaw lus thaum muaj kev txhaum ntawm kab-rau-hauv av.