Ama-CTs abalulekile ezinhlelweni ezahlukahlukene, kufaka phakathi:
Amasistimu Wokuvikela: Ama-CTs abalulekile kuma-relay avikelayo avikela okokusebenza kukagesi ekulayishweni ngokweqile namasekhethi amafushane. Ngokuhlinzeka ngenguqulo eyehlisiwe yamanje, zenza ukuthi ama-relay asebenze ngaphandle kokuchayeka kumaza aphezulu.
Ukulinganisa: Ezilungiselelweni zezohwebo nezimboni, ama-CT asetshenziselwa ukukala ukusetshenziswa kwamandla. Bavumela izinkampani zensiza ukuthi ziqaphe inani likagesi osetshenziswa abasebenzisi abakhulu ngaphandle kokuxhuma ngokuqondile imishini yokulinganisa kolayini bamandla kagesi aphezulu.
Ukuqapha Ikhwalithi Yamandla: Ama-CT asiza ekuhlaziyeni ikhwalithi yamandla ngokulinganisa ama-harmonics amanje kanye neminye imingcele ethinta ukusebenza kahle kwezinhlelo zikagesi.
Ukuqonda ama-Voltage Transformers (VT)
A I-Voltage Transformer(VT), eyaziwa nangokuthi i-Potential Transformer (PT), yakhelwe ukukala amazinga kagesi ezinhlelweni zikagesi. Njengama-CTs, ama-VT asebenza ngomgomo wokungeniswa kuka-electromagnetic, kodwa axhunywe ngokuhambisana nesekethe okufanele kukalwe ngayo amandla kagesi. I-VT yehlisa amandla kagesi aphezulu iye ezingeni eliphansi, elilawulekayo elingakalwa ngokuphepha ngezinsimbi ezijwayelekile.
Ama-VT asetshenziswa kakhulu ku:
Isilinganiso samandla kagesi: Ama-VT ahlinzeka ngokufundwa kwamandla kagesi okunembile ngezinjongo zokuqapha nokulawula eziteshini ezincane namanethiwekhi okusabalalisa.
Amasistimu Wokuvikela: Ngokufana nama-CTs, ama-VT asetshenziswa kuma-relay avikelayo ukuze kutholwe izimo zamandla kagesi ezingavamile, ezifana nokugcwala ngokweqile noma ukungasebenzi kahle, okungaholela ekulimaleni kwemishini.
Ukulinganisa: Ama-VT aphinde asetshenziswe ezinhlelweni zamamitha zamandla, ikakhulukazi kumasistimu anamandla kagesi, okuvumela izinsiza ukukala ukusetshenziswa kwamandla ngokunembile.
Umehluko Obalulekile PhakathiCTkanye ne-VT
Nakuba kokubili ama-CTs nama-VT kuyizingxenye ezibalulekile ezinhlelweni zikagesi, ahluke kakhulu ekwakhiweni kwawo, ekusebenzeni kwawo, nasekusetshenzisweni kwawo. Nansi umehluko obalulekile:
Ukusebenza:
Ama-CT akala amanje futhi axhunywe ochungechungeni nomthwalo. Banikeza imanje elehlisiwe elilingana nelamanje eliyinhloko.
Ama-VT akala i-voltage futhi axhunywe ngokuhambisana nesekhethi. Zehlisa i-voltage ephezulu ziye ezingeni eliphansi ukuze zikalwe.
Uhlobo Lokuxhumana:
Ama-CT axhunywe ochungechungeni, okusho ukuthi yonke yamanje igeleza kumawindi aphambili.
Ama-VT axhunywe ngokuhambisana, okuvumela i-voltage kuyo yonke isekethe eyinhloko ukuthi ikalwe ngaphandle kokuphazamisa ukuhamba kwamandla.
Okukhiphayo:
Ama-CTs akhiqiza i-current yesibili eyingxenyana yamanje eyinhloko, ngokuvamile ebangeni le-1A noma i-5A.
Ama-VT akhiqiza i-voltage yesibili eyingxenyana ye-voltage eyinhloko, evame ukulinganiswa ibe ngu-120V noma i-100V.
Izicelo:
Ama-CTs asetshenziswa ngokuyinhloko ukulinganisa kwamanje, ukuvikela, kanye nokubala ezinhlelweni zokusebenza zamanje.
Ama-VT asetshenziselwa ukulinganisa i-voltage, ukuvikela, kanye nokulinganisa kuma-high-voltage application.
Ukucatshangelwa kwedizayini:
Ama-CTs kumele aklanyelwe ukuphatha imisinga ephezulu futhi avame ukukalwa ngokusekelwe emthwalweni wawo (umthwalo oxhunywe kwesesibili).
Ama-VT kufanele aklanyelwe ukuphatha ama-voltage aphezulu futhi akalwe ngokusekelwe esilinganisweni sokuguqulwa kwawo kwamandla kagesi.
Isikhathi sokuthumela: Jan-23-2025