Kwọn nyewo

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

Yana kula min da tsari mai yawa a tushen wurin gaba, wanda ake amfani da shi don duba ƙwarewa cikakken jirgin rike. Take suka dace: Dabbobi, biyu, uku na dabbobi Kabu/Aluminium na mafi girma mm²/AWG na birni m/ft/yd na tsari Mafi girman kabu da ke barabar Rumanci Yawan I_sc,min = U / (√3 × (R_L + X_L)) Me: U: Tsari na gaban R_L: R_L: Jirgen rike na gasar X_L: Jirgen rike na hankali Misal Nau'in tsari: Uku na dabbobi Tsari: 400 V Tsari: 50 m Mafi girma: Kabu, 16 mm² → Min da tsari mai yawa ≈ 8.5 kA

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