Hloov Txoj Kev Sib Hloov Ntawm DC Tsav
Tso lus
Muaj ob txoj hauv kev los hloov cov kev taw qhia kev sib hloov ntawm DC lub cev muaj zog:
Ib qho yog armature thim rov qab txoj kev sib txuas, uas yog, kom lub polarity ntawm lub davhlau ya nyob twg voltage ntawm lub excitation winding tsis hloov, thiab thim rov qab lub cev muaj zog los ntawm kev hloov lub polarity ntawm lub davhlau ya nyob twg voltage ntawm armature winding.
Qhov thib ob yog txoj kev rov qab sib txuas ntawm excitation winding, uas yog, lub polarity ntawm armature winding davhlau ya nyob twg voltage yog khaws cia tsis hloov, thiab cov kev taw qhia ntawm lub cev muaj zog yog hloov los ntawm kev hloov lub polarity ntawm lub excitation winding davhlau ya nyob twg voltage. Thaum ob qho tib si voltage polarities hloov nyob rau tib lub sijhawm, kev sib hloov ntawm lub cev muaj zog yuav tsis hloov.
Lub armature thim rov qab txoj kev sib txuas feem ntau yog siv los ua kom paub txog kev sib hloov mus rau pem hauv ntej thiab thim rov qab ntawm kev sib tw zoo siab thiab sib luag DC motors. Yog vim li cas vim li cas nws tsis tsim nyog siv txoj kev rov qab kev sib txuas ntawm excitation winding kom paub txog pem hauv ntej thiab thim rov qab rau kev sib cais zoo siab thiab sib luag zoo siab DC motors yog tias tus naj npawb ntawm kev hloov pauv ntawm excitation winding yog loj thiab inductance loj. Thaum lub excitation winding yog thim rov qab, ib tug loj induced electromotive quab yuam yuav generated nyob rau hauv lub excitation winding. Qhov no yuav ua rau puas lub rwb thaiv tsev ntawm riam hloov thiab lub excitation winding.
Yog vim li cas vim li cas series zoo siab DC lub cev muaj zog yuav tsum tau txais txoj kev rov qab kev sib txuas ntawm excitation winding kom paub txog pem hauv ntej thiab thim rov qab yog tias qhov hluav taws xob ntawm ob qho kawg ntawm armature ntawm series zoo siab DC lub cev muaj zog siab, thaum lub zog ntawm ob qho kawg ntawm excitation winding yog heev. qis, yog li nws yooj yim rau thim rov qab kev sib txuas. Txoj kev no feem ntau siv nyob rau hauv hluav taws xob locomotive.