Tungku leleh induksi pitungan daya

1. Parameter calculation of thyristor

Daya tungku pemanas pipa baja yaiku 1500KW, lan voltase garis mlebu sing dirancang yaiku 500V. Sawise petungan, data ing ngisor iki bisa dipikolehi.

Tegangan DC Ud=1.35×500=675V

Id arus DC=1500000÷675=2200A

Tegangan frekuensi penengah US=1.5×Ud =1000V

Arus penyearah silikon sing dirating IF=0.38×Id÷2÷0.85=491A

(Divisi kanthi 2 ing rumus ing ndhuwur amarga ana rong set bagean penyearah sing padha)

Tegangan penyearah silikon UV = 1.414 × UL = 1.414 × 500 = 707V

Inverter silikon dirating saiki IF=Id/2=1100A

Inverter silikon voltase dirating UV=1.414×US=1414V

2. Skema pilihan model SCR

The rectifier SCR selects KP1500A/2000V, that is, the rated current is 1500A, and the rated voltage is 2000V. Compared with the theoretical value, the voltage margin is 2.26 times, and the current margin is 2.43 times.

Inverter thyristor KK2500A / 2000V saka sumber daya frekuensi penengah, yaiku, saiki dirating 2500A, lan voltase dirating 2000V. Kajaba iku, silikon inverter disambungake menyang jembatan inverter kanthi sambungan seri silikon ganda, saengga voltase thyristor sing dirating ing saben lengen jembatan inverter yaiku 5000V. Dibandhingake karo nilai teoritis, wates voltase 2.26 kaping, lan wates saiki 2.15 kaping.

3. Yen resonant kapasitor kabinet

Kapasitor resonansi frekuensi penengah saka lemari kapasitor iki kabeh kapasitor electrothermal sing diprodhuksi dening Pabrik Kapasitor Daya Xin’anjiang, model kasebut RFM2 1.0 -2000-1.0S. Kapasitase yaiku 2000KVar, lan frekuensi operasi yaiku 1000Hz.

4. Daya tungku peleburan induksi diitung minangka pw = tegangan DC × arus DC