News - Kodi PT/CT ndi chiyani?

PTimadziwika kuti ma voltage transformer m'makampani amagetsi ndipo CT ndi dzina lodziwika bwino la chosinthira chomwe chilipo pamsika wamagetsi.

Voltage thiransifoma (PT): ndi zida zamagetsi zomwe zimasintha ma voteji apamwamba amagetsi kukhala ma voltage ena otsika (100V kapena 100 / √ 3V).

Transformer yotheka (PT, VT) ndi yofanana ndi thiransifoma, yomwe imagwiritsidwa ntchito kusintha magetsi pamzere.Komabe, cholinga chomwe thiransifoma imasinthira magetsi ndikutumiza mphamvu yamagetsi.Mphamvu yake ndi yayikulu kwambiri, nthawi zambiri mu kilovolti ampere kapena megavolt ampere monga gawo lowerengera.Cholinga chomwe thiransifoma yamagetsi imasintha voteji imagwiritsidwa ntchito kwambiri kuyeza mita ndi magetsi pogwiritsa ntchito zida zodzitetezera ku relay, kuyeza voteji, mphamvu ndi mphamvu yamagetsi pamzere, kapena kuteteza zida zamtengo wapatali pamzerewu pomwe mzerewo ukulephera. voteji thiransifoma ndi yaing'ono kwambiri, zambiri okha volt ampere ochepa, ambiri volt ampere, ndipo pazipita si oposa chikwi chimodzi volt ampere.

thiransifoma yamakono (CT): ndi zida zamagetsi zomwe zimasintha ma voltages apamwamba kwambiri kapena mphamvu yayikulu yamagetsi otsika kukhala yamagetsi yaying'ono (5a kapena 1a).

Transformer yamakono ndi chida chomwe chimasintha mphamvu yayikulu yomwe ili mbali yoyamba kukhala yaying'ono kumbali yachiwiri molingana ndi mfundo ya electromagnetic induction.The thiransifoma panopa wapangidwa chatsekedwa pachimake ndi mapiringidzo.Mapiritsi ake oyambirira amatembenuka ndi ochepa kwambiri, ndipo amalumikizidwa motsatizana m'dera lomwe limayenera kuyeza zamakono.Chifukwa chake, nthawi zambiri imakhala ndi zonse zomwe zikuyenda pamzerewu, ndipo kutembenuka kwachiwiri kumakhala kochulukirapo.Imalumikizidwa motsatizana mu chida choyezera ndi dera lachitetezo.Pamene thiransifoma yamakono ikugwira ntchito, dera lake lachiwiri limakhala lotsekedwa nthawi zonse, kotero kuti kutsekedwa kwa mndandanda wa koyilo ya chipangizo choyezera ndi dera lachitetezo ndi laling'ono kwambiri, ndipo ntchito ya thiransifoma yamakono ili pafupi ndi dera lalifupi.Transformer yamakono imasintha mphamvu yayikulu kumbali yoyamba kukhala yaing'ono pakalipano kumbali yachiwiri kuti iyesedwe, ndipo mbali yachiwiriyo siyingatsegulidwe dera.