Umgaqo weTransformer

Kwimizila yokuvelisa amandla, ukuguqulwa, ukuhanjiswa, ukuhanjiswa, kunye nokusetyenziswa kwamandla, imisinga yombane iyahluka kakhulu, ukusuka kwii-amperes ezimbalwa ukuya kumashumi amawaka e-amperes. Ukuze kuququzelelwe umlinganiselo, ukhuseleko kunye nolawulo, kufuneka uguqulwe ube ngumbane ofanayo. Ukongeza, i-voltage kumgca iphezulu kakhulu, njengokulinganisa ngokuthe ngqo kuyingozi kakhulu. I-transformer yangoku idlala indima yokuguqulwa kwangoku kunye nokuhlukaniswa kombane.
Kwii-ammeters zohlobo lwe-pointer, i-second current ye-transformer yangoku ininzi ye-ampere-level (efana ne-5A, njl.). Kwizixhobo zedijithali, umqondiso wesampuli ngokubanzi yi-milliampere (0-5V, 4-20mA, njl.). I-second current ye-miniature current transformer i-milliampere, kwaye isebenza ngokukodwa njengebhuloho phakathi kwe-transformer enkulu kunye nesampuli.
I-miniature transformers yangoku ikwabizwa ngokuba "yi-instrument current transformers". (I-"instrument yangoku ye-instrument transformer" inentsingiselo yokuba i-multi-current ratio echanekileyo i-transformer yangoku esetyenziswa kwilabhoratri isetyenziswa ngokubanzi ukwandisa uluhlu lwesixhobo.)
I-transformer yangoku ifana ne-transformer kwaye iphinda isebenze ngokomgaqo wokungeniswa kwe-electromagnetic. I-transformer iguqula i-voltage kunye ne-transformer yangoku iguqula okwangoku. I-winding ye-transformer yangoku edityaniswe kumbane olinganisiweyo (inani lokujika yi-N1) libizwa ngokuba yi-primary winding (okanye i-primary winding, i-primary winding); ukujija (inani lokujika yi-N2) eliqhagamshelwe kwisixhobo sokulinganisa libizwa ngokuba lujiko lwesibini (okanye ujiko lwesibini) Ukujija, ukujika okwesibini).
Umlinganiselo wangoku phakathi kwe-primary winding yangoku i-I1 ye-transformer yangoku kunye ne-second winding i-I2 ibizwa ngokuba ngumlinganiselo wangoku we-K. Umlinganiselo wangoku we-transformer yangoku xa isebenza kwi-rate yangoku ibizwa ngokuba yi-transformer yangoku i-related current ratio, leyo. imelwe nguKn.
Kn=I1n/I2n
Umsebenzi we-transformer yangoku (CT) kukuguqula i-primary current enexabiso elikhulu kwi-second current enexabiso elincinci ngomlinganiselo othile wokuguqulwa kokukhusela, ukulinganisa kunye nezinye iinjongo. Ngokomzekelo, i-transformer yangoku kunye nomlinganiselo wenguqu ye-400/5 inokuguqula i-current ye-400A ibe yi-5A yangoku.