1. Njira Zosiyanasiyana Zogwiritsira Ntchito:
Zingwe za DCamagwiritsidwa ntchito mu makina otumizira ma current direct current pambuyo pokonzanso, pomwe zingwe za AC zimagwiritsidwa ntchito kwambiri mumakina amagetsi omwe amagwira ntchito pa ma frequency a mafakitale (50Hz).
2. Kutaya Mphamvu Kochepa mu Kutumiza:
Poyerekeza ndi zingwe za AC, zingwe za DC zimataya mphamvu pang'ono panthawi yotumiza magetsi. Kutaya mphamvu mu zingwe za DC kumachitika makamaka chifukwa cha kukana kwa mphamvu mwachindunji kwa ma conductors, ndipo kutayika kwa insulation kumakhala kochepa (kutengera kukula kwa kusinthasintha kwa mphamvu pambuyo pokonzanso). Kumbali ina, kukana kwa AC kwa zingwe za AC zokhala ndi mphamvu zochepa kumakhala kwakukulu pang'ono kuposa kukana kwa DC, ndipo pa zingwe zamphamvu kwambiri, kutayika kumakhala kwakukulu chifukwa cha kuyandikira kwa mphamvu ndi zotsatira za khungu, komwe kutayika kwa mphamvu zotetezera kutentha kumakhala ndi gawo lalikulu, makamaka chifukwa cha kukana kwa mphamvu kuchokera ku capacitance ndi inductance.
3. Kugwira Ntchito Mwachangu Kwambiri ndi Kutayika kwa Mizere Yotsika:
Zingwe za DC zimapereka mphamvu zambiri zotumizira magiya komanso kutayika kochepa kwa mizere.
4. Yosavuta Kusintha Mayendedwe a Mphamvu ndi Kusintha kwa Mphamvu.
5. Ngakhale kuti zipangizo zosinthira magetsi zimakhala zokwera mtengo poyerekeza ndi ma transformer, mtengo wonse wogwiritsa ntchito zingwe za DC ndi wotsika kwambiri kuposa wa zingwe za AC. Zingwe za DC zimakhala ndi bipolar, zokhala ndi kapangidwe kosavuta, pomwe zingwe za AC zimakhala ndi mawaya anayi kapena asanu omwe ali ndi magawo atatu okhala ndi chitetezo champhamvu komanso kapangidwe kovuta kwambiri. Mtengo wa zingwe za AC ndi woposa katatu kuposa zingwe za DC.
6. Chitetezo Chapamwamba Pakugwiritsa Ntchito Zingwe za DC:
- Makhalidwe achibadwa a DC transmission amachititsa kuti zikhale zovuta kuyambitsa mphamvu yamagetsi ndi kutuluka kwa madzi, kupewa kusokoneza kwa maginito ndi zingwe zina zomwe zimayikidwa pamodzi.
- Zingwe zolumikizidwa ndi core imodzi sizimataya mphamvu ya magnetic hysteresis chifukwa cha mathireyi a chingwe opangidwa ndi chitsulo, zomwe zimasunga magwiridwe antchito a chingwe.
- Zingwe za DC zili ndi mphamvu zambiri zoteteza mawaya afupikitsa komanso mawaya ochulukirapo.
- Pamene magetsi ofanana ndi magetsi agwiritsidwa ntchito pa insulation, magetsi a DC amakhala otetezeka kwambiri kuposa magetsi a AC.
7. Kukhazikitsa Kosavuta, Kukonza Kosavuta, ndi Kuchepetsa Ndalama Zogulira Zingwe za DC.
Kuteteza kutenthaZofunikira pa Voltage ndi Current Yofanana ya AC ndi DC:
Pamene magetsi ofanana agwiritsidwa ntchito pa chotenthetsera, mphamvu yamagetsi mu zingwe za DC imakhala yochepa kwambiri kuposa ya zingwe za AC. Chifukwa cha kusiyana kwakukulu kwa kapangidwe kake pakati pa minda iwiriyi, mphamvu yamagetsi yayikulu kwambiri panthawi yogwiritsa ntchito chingwe cha AC imakhala pafupi ndi kondakitala, pomwe mu zingwe za DC, imakhazikika kwambiri mkati mwa gawo lotenthetsera. Zotsatira zake, zingwe za DC zimakhala zotetezeka (nthawi 2.4) pamene mphamvu yamagetsi yomweyo imagwiritsidwa ntchito pa chotenthetsera.
Nthawi yotumizira: Novembala-10-2023