Kwiminyaka yeteknoloji yedijithali, iimitha ezihlakaniphile ziye zavela njengesixhobo sokuguqula amandla okulawula amandla. Ezi zixhobo azilinganisi kuphela ukusetyenziswa kwamandla kodwa zibonelela ngedatha yexesha langempela kubo bobabini abathengi kunye neenkampani eziluncedo. Ukuqonda amacandelo emitha ehlakaniphile kubalulekile ukuqonda indlela asebenza ngayo kunye nezibonelelo ezinikezelayo. Imitha ekrelekrele ikakhulu yenziwe ngamacandelo amathathu: ukutshintsha, umlinganiselo, kunye nokuhlanganisa. Ngaphakathi kwezi ndidi, amacandelo amaninzi abalulekileyo adlala indima ebalulekileyo, kuquka iMagnetic Latching Relay, iTransformer yangoku, kunye ne-mangan shunt.
1. Ukutshintsha: I-Magnetic Latching Relay
Embindini wokusebenza kwemitha ehlakaniphile kukutshintsha, okuhlala kuququzelelwa yiI-Magnetic Latching Relay(MLR). Eli candelo liyimfuneko ekulawuleni ukuhamba kombane ukuya nokubuya kwimitha. Ngokungafaniyo neereyilayi zesiNtu, ezifuna amandla aqhubekayo ukugcina imeko yazo, iireyilayi zemagnethi zasebenzisa imagnethi ukuze zibambe indawo yazo. Eli nqaku libavumela ukuba basebenzise amandla amancinci, babenze ukhetho olufanelekileyo kwiimitha ezihlakaniphile.
I-MLR inokutshintsha phakathi kokuvula nokuvala amazwe ngaphandle kokufuna unikezelo lwamandla rhoqo, oluluncedo kakhulu ekusebenzeni kakuhle kwamandla. Esi sikhundla asinciphisi kuphela ukusetyenziswa kwamandla ngokubanzi kwemitha ehlakaniphile kodwa kwandisa ukuthembeka kwayo. Kwimeko yokucima kombane, i-MLR inokugcina imeko yayo, iqinisekisa ukuba imitha iyaqhubeka isebenza ngokuchanekileyo xa amandla ebuyiselwe.
2. Umlinganiselo: ITransformer yangoku kunye neManganin Shunt
Icandelo lomlinganiselo wemitha ehlakaniphile libalulekile ekulinganiseni ngokuchanekileyo ukusetyenziswa kwamandla. Izinto ezimbini eziphambili ezibandakanyekayo kule nkqubo yiTransformer yangoku (CT) kunye ne-mangan shunt.
ITransformer yangoku yinxalenye ebalulekileyo evumela imitha ehlakaniphile ukuba ilinganise umsinga ojikelezayo kwisekethe yombane. Isebenza kumgaqo wokungeniswa kwe-electromagnetic, apho i-primary current ivelisa i-magnetic field eyenza i-proportional current in the second winding of the transformer. Olu tshintsho luvumela umlinganiselo okhuselekileyo kunye nochanekileyo wemisinga ephezulu ngaphandle kwesidingo sokudibanisa umbane ngokuthe ngqo.
I-CTs inenzuzo ngokukhethekileyo kwiimitha ezihlakaniphile kuba zinokubonelela ngedatha yexesha langempela ekusebenziseni amandla, okwenza abasebenzisi babeke iliso kwiipatheni zabo zokusetyenziswa. Olu lwazi lunokuba luncedo kubo bobabini abathengi kunye neenkampani eziluncedo, njengoko ivumela ulawulo olungcono lwamandla kunye nokubikezela.
Manganin Shunt
Elinye icandelo lomlinganiselo obalulekileyo yimanganin shunt. Esi sixhobo sisetyenziselwa ukulinganisa ukuhla kwamandla ombane kwindawo eyaziwayo yokuxhathisa, ukuvumela imitha ehlakaniphile ukubala i-current equkuqelayo kwisekethe. I-Manganin, i-alloy yobhedu, i-manganese, kunye ne-nickel, ikhethwa ngenxa ye-coefficient yayo yokushisa ephantsi, eqinisekisa ukuchaneka okuphezulu kwimilinganiselo.
I-mangan shunt iyasebenza ngokukodwa kwiimitha ezihlakaniphile kuba inokusingatha imisinga ephezulu ngelixa igcina uzinzo kunye nokuchaneka. Oku kuchaneka kubalulekile ekuboneleleni abathengi ngedatha ethembekileyo malunga nokusetyenziswa kwamandla abo, okunokukhokelela kwizigqibo ezinolwazi malunga nokusetyenziswa kwamandla kunye nokugcinwa kweendleko.
3. INdibano: Ukudityaniswa kwamaCandelo
Indibano yemitha ehlakaniphile ibandakanya ukudityaniswa kokutshintsha, amacandelo okulinganisa, kunye neesekethe ezongezelelweyo eziququzelela unxibelelwano kunye nokucubungula idatha. Le ndibano yenzelwe ukuqinisekisa ukuba onke amacandelo asebenzisana ngaphandle komthungo ukuze anike ulwazi oluchanekileyo nolusexesheni.
Ukudityaniswa kwala macandelo kuvumela iimitha ezihlakaniphile ukuba zinxibelelane neenkampani eziluncedo ngeenethiwekhi ezingenazingcingo. Esi sikhundla sonxibelelwano lunkqubela phambili ebalulekileyo kwiimitha zemveli, nto leyo efuna ufundo lwezandla. Ngeemitha ezihlakaniphile, idatha inokuhanjiswa ngexesha langempela, ivumela izixhobo zokubeka iliso kwiipateni zokusetyenziswa kwamandla, ukufumanisa ukuphuma, kunye nokulawula izixhobo ngokufanelekileyo.
Ngaphaya koko, ukudityaniswa kweemitha ezihlakaniphile kuhlala kubandakanya izinto eziphambili ezinje ngokubhaqwa kwe-tamper, ezilumkisa iinkampani eziluncedo ngobuqhophololo okanye ukusetyenziswa okungagunyaziswanga. Lo maleko wongeziweyo wokhuseleko ubalulekile ekugcineni intembeko yenkqubo yokuhanjiswa kwamandla.
Ukuqukumbela
Isishwankathelo, imitha ehlakaniphile inamacandelo amathathu aphambili: ukutshintsha, umlinganiselo, kunye nokudibanisa. IMagnetic Latching Relay isebenza njengotshintsho, ibonelela ngolawulo olusebenzayo lokuhamba kwamandla. Amacandelo okulinganisa, kubandakanywa iTransformer yangoku kunye ne-mangan shunt, iqinisekisa ukubeka iliso ngokuchanekileyo kokusetyenziswa kwamandla. Ekugqibeleni, indibano idibanisa la macandelo, ivumela unxibelelwano kunye nokucubungula idatha okwandisa ulawulo lwamandla.
Njengoko umhlaba usiya kuqheliselo lwamandla oluzinzileyo, iimitha ezihlakaniphile ziya kudlala indima ebaluleke kakhulu ekuncedeni abathengi kunye neenkampani eziluncedo ukuba ziphucule ukusetyenziswa kwamandla. Ukuqonda amacandelo enza ezi zixhobo kubalulekile ukuxabisa impembelelo yazo ekusebenzeni kwamandla kunye nokulawula. Ngokuhambela phambili kwitekhnoloji, ikamva leemitha ezikrelekrele lijongeka lithembisa, livula indlela yezisombululo zamandla ezikrelekrele.
Ixesha lokuposa: Jan-20-2025