Please answer the question below with solution.?
The shunt winding of a motor has a resistance of 85 ohm at 22oC. When the motor runs at full load, its resistance increases to 100 ohms. The resistance temperature coefficient of winding per 0oC is 0.004. The rise in temperature of the winding will be nearly
Answers
billrussell42
The shunt winding of a motor has a resistance of 85 Ω at 22ºC. When the motor runs at full load, its resistance increases to 100 Ω. The resistance temperature coefficient of winding per ºC is 0.004. The rise in temperature of the winding will be? Temperature Change in Resistance Rt = Ro(1 + α∆T) α is temperature coef in /ºC Rt = Ro(1 + α∆T) 100 = 85(1 + 0.004∆T) 1 + 0.004∆T = 1.176 0.004∆T = 0.176 ∆T = 44.1º T = 44+22 = 66º
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