I-Resistance R, inductance L, namandla C

I-Resistance R, inductance L, kanye ne-capacitance C yizingxenye ezintathu ezinkulu namapharamitha kusekethe, futhi wonke amasekethe awakwazi ukwenza ngaphandle kwala mapharamitha amathathu (okungenani eyodwa yawo).Isizathu sokuthi kungani ziyizingxenye namapharamitha kungenxa yokuthi u-R, L, no-C umele uhlobo lwengxenye, njengengxenye ephikisayo, futhi ngakolunye uhlangothi, amelela inombolo, njengenani lokumelana.

Kufanele kushiwo ngokukhethekile lapha ukuthi kunomehluko phakathi kwezingxenye ezisesekethe kanye nezingxenye zomzimba zangempela.Okubizwa ngokuthi izingxenye zesekethe empeleni kuyimodeli nje, engamelela isici esithile sezingxenye zangempela.Kalula nje, sisebenzisa uphawu ukuze simele isici esithile sezingxenye zangempela zemishini, njengezihluthulelo, izithando zomlilo kagesi, njll. Izinduku zokushisisa ngogesi nezinye izingxenye zingamelelwa kumasekhethi zisebenzisa izakhi eziphikisayo njengamamodeli azo.

Kodwa ezinye izinto azikwazi ukumelwa ingxenye eyodwa kuphela, njengokuphenduka kwenjini, okuyikhoyili.Ngokusobala, ingamelwa yi-inductance, kodwa i-winging nayo inenani lokumelana, ngakho ukumelana kufanele futhi kusetshenziselwe ukumela leli nani lokumelana.Ngakho-ke, lapho wenza imodeli ye-motor winding kusekethe, kufanele imelelwe uchungechunge lwenhlanganisela ye-inductance nokumelana.

Ukumelana kuyinto elula futhi eyaziwa kakhulu.Ngokomthetho ka-Ohm, ukumelana no-R=U/I, okusho ukuthi ukumelana kuyalingana ne-voltage ehlukaniswa ngokwamanje.Ngokombono wamayunithi, ingu-Ω=V/A, okusho ukuthi ama-ohms alingana namavolthi ahlukaniswa ngama-ampere.Kusekhethi, ukumelana kumelela umphumela wokuvimba kumanje.Uma kukhulu ukumelana, kulapho umphumela wokuvimba unamandla khona manje… Ngamafuphi, ukumelana akukho ongakusho.Okulandelayo, sizokhuluma nge-inductance kanye ne-capacitance.

Eqinisweni, i-inductance iphinde imele amandla okugcina amandla ezingxenye ze-inductance, ngoba amandla kazibuthe anamandla, amandla amakhulu enawo.Izinkambu zikazibuthe zinamandla, ngoba ngale ndlela, izizibuthe zingasebenzisa amandla kazibuthe emkhakheni kazibuthe futhi zisebenze kuwo.

Buyini ubudlelwano phakathi kwe-inductance, i-capacitance, kanye nokumelana?

I-inductance, i-capacitance ngokwayo ayihlangene nokumelana, amayunithi awo ahluke ngokuphelele, kodwa ahluke kumasekhethi e-AC.

Ku-DC resistors, i-inductance ilingana nesekhethi emfushane, kuyilapho amandla alingana nesekhethi evulekile (i-open circuit).Kodwa kumasekethe e-AC, kokubili i-inductance kanye ne-capacitance kukhiqiza amanani ahlukene okumelana nezinguquko zemvamisa.Ngalesi sikhathi, inani lokumelana alisabizwa ngokuthi ukumelana, kodwa libizwa ngokuthi i-reactance, elimele uhlamvu X. Inani lokumelana elikhiqizwa yi-inductance libizwa ngokuthi i-inductance XL, futhi inani lokumelana elikhiqizwa yi-capacitance libizwa ngokuthi i-capacitance XC.

Ukusabela kwe-inductive kanye ne-capacitive reactance kufana neziphikisayo, futhi amayunithi azo aku-ohms.Ngakho-ke, baphinde bamele umphumela wokuvimbela we-inductance kanye ne-capacitance okwamanje kumjikelezo, kodwa ukumelana akushintshi ngokuvama, kuyilapho ukusabela kwe-inductive kanye nokushintsha kwe-capacitive reactance ngemvamisa.