Minimum short circuit current

Yanzu current da kuma voltage, power, power factor, ko impedance. Yana taimaka: Nuhu-maya da kuma tudu-maya na system Active power → current Apparent power → current Resistance/impedance → current Bilingual support Key Formulas Nuhu-maya: I = P / (V × cosφ) Tudu-maya: I = P / (√3 × V × cosφ) Nuhu-maya: I = S / V Tudu-maya: I = S / (√3 × V) Nuhu-maya: I = V / R Tudu-maya: I = V / (√3 × Z) Example Tudu-maya na system, 400V, 10kW, PF=0.85 → Current ≈ 17.5 A

Ita kalkula a cikin hanyar zuwa wata a tsohon kasa uku, kungiyoyi na hudu da suka shafi tsari a kafuwar hanyar. Yana taimakawa: Koyarwa daban-daban na tsari a tsohon kasa uku Kalkular tsari a cikin hanyar a baya-bayan Taimakawa labaran (Chinese/English) Rubutu Mai Yawa I_N = √(I_A² + I_B² + I_C² - I_A×I_B - I_B×I_C - I_C×I_A) Me: I_A, I_B, I_C: Tsari a kafuwar hanyar I_N: Tsari a cikin hanyar Misalai A cikin hanyar A: 10A, A cikin hanyar B: 10A, A cikin hanyar C: 5A → Tsari a cikin hanyar ≈ 5.0A

Yadda kwallon karamin tushen karkashin abincin kasa na tsarki da shi da amsa, kashi, daraja, da kuma karamin tushen. Yana daya: Nau'o'i da uku Kashi gaba-gaba (400V/230V, 690V/400V, wanda baki) Maimaito kashi Daraja da karamin tushen zai iya canza Karamin tushen Tsarin Yakin I = P / (√3 × V × η × cosφ) Me: P: Amsa (kW) V: Kashi (V) η: Daraja cosφ: Karamin tushen Misali Nau'o'i da uku, 400V, 10kW, η=0.9, PF=0.85 → Kwallon karamin ≈ 19.5 A

Wani taurari ya kula na'urar daɗi mai yawa a cikin ƙasa (kA) a tsakiyar ƙasashen da dama, wanda shi ne da muhimmanci don zabi ƙwarewa da suka da muhimmanci, gudanar da hanyoyi da suka da muhimmanci, da kuma neman al'amuran jiki. Tsari Zabir ƙwarewar da suka da muhimmanci : Takaice cewa kyaukan ƙwarewan ≥ na'urar daɗi mai yawa a tsakiyar ƙasa Gudanar da hanyoyi da suka da muhimmanci : Inganta yanayin ƙwarewa masu mafi girma da kuma ƙwarewa masu ci Neman al'amuran jiki : Takaice cewa an buƙaci abubuwa masu inganci don al'amuran jiki Ingancin daɗi mai yawa : Dukar cewa ƙasa suna iya ƙarewa na'urar daɗi mai yawa Al'adun Kula Na'urar daɗi mai yawa ta dogara: Na'urar daɗi mai yawa a tushen (kA) Abubuwan ƙasa (V) Tsawon ƙasa (m/ft/yd) Abu mai ƙarewa (Kupfa/Aluminium) Tsawon ƙasa (mm² ko AWG) Abubuwan ƙasa (Unipolar/Multicore) Tsarin al'amura (3-phase, phase-to-phase, phase-to-earth) Ƙasa masu tsawo, tsawon ƙasa mai yawa, ko abubuwan mai ƙarewa masu kyauta suna haɓaka na'urar daɗi mai yawa a tsakiyar ƙasa. Misalai na Neman Abubuwa Na'urar daɗi mai yawa a tushen: 10 kA Abubuwan ƙasa: 220 V / 400 V Abu mai ƙarewa: Kupfa, 1.5 mm² Tsawon ƙasa: 10 mita Tsarin al'amura: Phase-to-earth