A separately excited 55kW, 125V dc motor is operated at a constant speed of 1600 rpm...
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A separately excited 55kW, 125V dc motor is operated at a constant speed of 1600 rpm with a constant field current. Armature resistance is 0.0502. 1. Calculate the armature current for an applied voltage of 135V. 2. If the applied voltage is reduced to 120V and the motor is drawing 35kW from the supply, calculate the Back EMF and the new motor shaft speed A separately excited 55kW, 125V dc motor is operated at a constant speed of 1600 rpm with a constant field current. Armature resistance is 0.0502. 1. Calculate the armature current for an applied voltage of 135V. 2. If the applied voltage is reduced to 120V and the motor is drawing 35kW from the supply, calculate the Back EMF and the new motor shaft speed A separately excited 55kW, 125V dc motor is operated at a constant speed of 1600 rpm with a constant field current. Armature resistance is 0.0502. 1. Calculate the armature current for an applied voltage of 135V. 2. If the applied voltage is reduced to 120V and the motor is drawing 35kW from the supply, calculate the Back EMF and the new motor shaft speed A separately excited 55kW, 125V dc motor is operated at a constant speed of 1600 rpm with a constant field current. Armature resistance is 0.0502. 1. Calculate the armature current for an applied voltage of 135V. 2. If the applied voltage is reduced to 120V and the motor is drawing 35kW from the supply, calculate the Back EMF and the new motor shaft speed
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1 Calculate the armature current for an applied voltage of 135V The armature current can be calculat... View the full answer
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