Ma CT ndi ofunikira pamagwiritsidwe osiyanasiyana, kuphatikiza:
Njira Zotetezera: Ma CTs ndi ofunikira pamakina oteteza omwe amateteza zida zamagetsi kuti zisachuluke komanso mabwalo amfupi. Popereka mawonekedwe ocheperako apano, amalola kuti ma relay azitha kugwira ntchito popanda kukumana ndi mafunde apamwamba.
Metering: M'malo azamalonda ndi mafakitale, ma CT amagwiritsidwa ntchito kuyeza kugwiritsa ntchito mphamvu. Amalola makampani ogwiritsira ntchito kuti ayang'ane kuchuluka kwa magetsi omwe amagwiritsidwa ntchito ndi ogwiritsa ntchito akuluakulu popanda kulumikiza mwachindunji zipangizo zoyezera ku mizere yothamanga kwambiri.
Kuyang'anira Ubwino Wamphamvu: Ma CT amathandizira kusanthula mphamvu yamagetsi poyesa ma harmonics apano ndi zina zomwe zimakhudza magwiridwe antchito amagetsi.
Kumvetsetsa Ma Voltage Transformers (VT)
A Voltage Transformer(VT), yomwe imadziwikanso kuti Potential Transformer (PT), idapangidwa kuti izitha kuyeza kuchuluka kwa magetsi pamakina amagetsi. Monga ma CTs, ma VTs amagwira ntchito pa mfundo ya electromagnetic induction, koma amalumikizidwa limodzi ndi dera lomwe mphamvu yake iyenera kuyezedwa. VT imatsitsa ma voliyumu apamwamba mpaka otsika, omwe amatha kuyezedwa bwino ndi zida zokhazikika.
Ma VT amagwiritsidwa ntchito kwambiri mu:
Kuyeza kwa Voltage: Ma VT amapereka kuwerengera kolondola kwamagetsi pakuwunika ndi kuwongolera zolinga m'magawo ang'onoang'ono ndi ma network ogawa.
Njira Zoteteza: Mofanana ndi ma CTs, ma VT amagwiritsidwa ntchito polumikizirana zoteteza kuti azindikire zovuta zamagetsi, monga kuchulukira kapena kutsika kwamagetsi, komwe kungayambitse kuwonongeka kwa zida.
Metering: Ma VT amagwiritsidwanso ntchito popanga metering yamagetsi, makamaka pamakina othamanga kwambiri, omwe amalola ogwiritsa ntchito kuyeza kuchuluka kwa mphamvu moyenera.
Kusiyana Kwakukulu PakatiCTndi vt
Ngakhale kuti ma CT ndi ma VT onse ndi zigawo zofunika kwambiri pamagetsi, zimasiyana kwambiri pakupanga, ntchito, ndi ntchito. Nazi kusiyana kwakukulu:
Kagwiritsidwe ntchito:
Ma CT amayesa zamakono ndipo amalumikizidwa mu mndandanda ndi katundu. Amapereka mphamvu yochepetsera yomwe ili yofanana ndi yoyamba.
Ma VT amayezera voteji ndipo amalumikizidwa mofanana ndi dera. Amatsitsa ma voltage okwera mpaka otsika kuti athe kuyeza.
Mtundu Wolumikizira:
Ma CT amalumikizidwa motsatizana, kutanthauza kuti zonse zomwe zikuchitika zikuyenda kudzera mumphepo yoyamba.
Ma VT amalumikizidwa mofananira, kulola kuti ma voliyumu kudutsa gawo loyambira ayesedwe popanda kusokoneza kuyenda kwapano.
Zotulutsa:
CTs imapanga yachiwiri yamakono yomwe ili kagawo kakang'ono kameneka kameneka, makamaka mumtundu wa 1A kapena 5A.
Ma VT amatulutsa magetsi achiwiri omwe ndi kachigawo kakang'ono ka magetsi oyambira, omwe nthawi zambiri amakhala 120V kapena 100V.
Mapulogalamu:
Ma CT amagwiritsidwa ntchito poyezera, chitetezo, ndi metering pakugwiritsa ntchito masiku ano.
Ma VT amagwiritsidwa ntchito poyezera voteji, chitetezo, ndi metering pamagetsi apamwamba kwambiri.
Malingaliro Opanga:
CTs iyenera kupangidwa kuti igwirizane ndi mafunde apamwamba ndipo nthawi zambiri amawerengedwa potengera katundu wawo (katundu wolumikizidwa ku sekondale).
Ma VT amayenera kupangidwa kuti azitha kuyendetsa ma voltages apamwamba ndipo amavoteredwa potengera kusintha kwamagetsi awo.
Nthawi yotumiza: Jan-23-2025