Jinsi ya kusanidi an kuzima masafa ya kati transformer?

The kati frequency quenching transformer inafupishwa kama kibadilishaji masafa ya kati, pia inajulikana kama kibadilishaji kinacholingana. Mchoro wake wa kanuni umeonyeshwa kwenye Mchoro 2-14 kwa uteuzi wa mzunguko wa sasa wa kupokanzwa na makadirio ya nguvu ya usambazaji wa nguvu.

The relationship between the primary winding voltage (Ep) and the secondary winding voltage (Es) can be expressed by the ratio of the turns of the two windings: Ep/Es=N/Ns. Its function is mainly to reduce the voltage, so that the parameters of the inductor are matched with the parameters of the intermediate frequency power supply. In order to reduce the loss of intermediate frequency line components, the output voltage used by the intermediate frequency power supply is between 375V and 1500V. Nowadays, 650V and 750V are mostly used. The voltage of the inductor used in the quenching device is usually between 7 and 100V due to different structures. For a 100kW intermediate frequency power supply, the commonly used voltage is between 8 and 80V. For example, the required voltage of the crankshaft semi-annular inductor is often 65-80V at 8-10kHz.

(1) Vigezo kuu na mahitaji ya kibadilishaji masafa ya kati ni kV·A kama uwezo wa kawaida. Mahitaji ya kiufundi kwa transfoma ya mzunguko wa kati kwa ujumla ni: utendaji thabiti na wa kuaminika, uendeshaji rahisi, muundo mdogo, hasara ya chini na bei nzuri. Kwa kuongeza, kuna mahitaji mawili maalum:

1) Mgawo wa shinikizo la kutofautiana ni rahisi kubadilisha.

2) Impedans ya muda mfupi ni ndogo (hii ni muhimu ili kupunguza kutokuwa na utulivu wa vipimo vya joto. Ukosefu huu utatokea wakati transformer haijaharibika sana, na itaathiri ukubwa wa impedance ya muda mfupi).