Qhov ntsuas kev hloov pauv hloov pauv KN ntawm lub ntsuas ntsuas ntsuas yog hais txog qhov ntsuas qhov ntsuas hluav taws xob ntawm qhov ntsuas hluav taws xob thiab qhov ntsuas tam sim no ntawm lub ntsuas tam sim no. Tus qub yog txhais raws li qhov piv ntawm qhov ntsuas voltage U1N ntawm thawj winding mus rau qhov ntsuas voltage U2N ntawm qhov thib ob winding; tom kawg yog qhov piv ntawm qhov ntsuas tam sim no I1N rau I2N. Ntawd yog, KN=U1N/U2N (rau qhov hloov pauv voltage) KN=I1N/I2N (rau tam sim no transformers). Thaum thawj qhov hluav taws xob (lossis tam sim no) ntawm qhov hluav taws xob (lossis tam sim no) transformer sib txawv nyob rau hauv ib qho kev sib txawv, nws feem ntau tau teev tias yog 0.85-1.15U1N (los yog 10-120% I1N), thiab theem nrab voltage (los yog tam sim no) yuav tsum hloov proportionally, thiab thawj thiab theem nrab voltages (los yog tam sim no) yuav tsum nyob rau hauv theem. Txawm li cas los xij, vim muaj cov yam ntxwv xws li cov impedance sab hauv, excitation tam sim no, thiab kev poob hauv lub transformer, qhov yuam kev ntawm qhov piv thiab theem yuav tshwm sim, uas yog hu ua piv txwv yuam kev thiab theem yuam kev, feem. Qhov sib txawv ntawm qhov sib txawv yog qhov sib txawv ntawm qhov sib txawv ntawm qhov hloov pauv theem nrab (lossis theem nrab tam sim no) thiab thawj qhov hluav taws xob (lossis thawj qhov tam sim no) mus rau tom kawg, piv txwv li, fU yog qhov sib txawv ntawm qhov hloov pauv hluav taws xob, thiab fI yog qhov sib txawv ntawm qhov tam sim no transformer. Thaum KNU2 > U1 (los yog KNI2 > I1), qhov sib txawv ntawm qhov zoo; txwv tsis pub, nws yog qhov tsis zoo.
Lub kaum sab xis sib txawv yog lub kaum sab xis ntawm qhov nruab nrab voltage (los yog theem nrab tam sim no) phasor thiab thawj qhov hluav taws xob (lossis thawj qhov tam sim no) phasor tom qab 180℃rotation, qhia nyob rau hauv degrees.Qhov tseeb tus nqi ntawm ob qho tib si qhov sib txawv thiab lub kaum sab xis qhov sib txawv txo qis raws li qhov voltage nce; Thaum cov tub ntxhais yog saturated, ob qho tib si qhov sib txawv thiab lub kaum sab xis qhov sib txawv nce raws li qhov voltage nce. Rau tam sim no transformers tsis tau them nyiaj, qhov piv txwv yuam kev yog qhov tsis zoo, thiab theem lub kaum sab xis yuam kev yog qhov zoo. Ob qho tag nrho tus nqi ntawm qhov piv txwv yuam kev thiab theem kaum qhov yuam kev txo qis raws li qhov tam sim no nce.
Txoj kev them nyiaj yuav txo tau qhov yuam kev ntawm lub transformer. Kev them nyiaj feem ntau yog ua tiav los ntawm kev ntxiv cov windings lossis cores rau lub transformer, thiab los ntawm kev sib txuas tsim nyog resistors, inductors, thiab capacitors. Cov txheej txheem them nyiaj feem ntau suav nrog cov nyiaj them rov qab, cov nyiaj them rov qab feem ntau, cov nyiaj them me me, thiab cov nyiaj them rov qab rau lub cev.