কত কিলোওয়াটে কত অ্যাম্পিয়ার ?(1 kw = How much ampere ??????? )
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কত কিলোওয়াটে কত অ্যাম্পিয়ার?? 1 kw = How much ampere ??????? Power formula for 3 phase load, Power, P= √3VICOS Here , √3=1.73, cos Ø = 0 .85, V=415 V P= 1kw=1000 watts So, I = P/( √3VCOS Ø) =1000/(1.73*415*0.85) = 1.63 A Power formula for Single Phase Load Power, P=VICOSØ Here, V=230V, COSØ=0.85, P=1KW=1000Watts So , I = P/( VCOS Ø) =1000/(230*0.85) =5.11 A Conclusion: 3phase, 1kw=1.63A, if motor is 10 kw then I=1.63*10=16.3 A 1 Phase, 1 kw=5.11 A, if motor is 5 kw then I=5.11*5 =25.55 A