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A separately excited dc motor has an armature resistance Ra = 0.05Ω. The field excitation is kept constant. At an armature voltage of 100 V, the motor produces a torque of 500 Nm at zero speed. Neglecting all mechanical losses, the no-load speed of the motor (in radian/s) for an armature voltage of 150 V is _____ (up to 2 decimal places).
Correct answer is '600.0 to 600.0'. Can you explain this answer?
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A separately excited dc motor has an armature resistance Ra = 0.05&Ome...
Ohm, and a field resistance Rf = 100 ohms. The motor is rated for 10 horsepower (hp) at 120 volts.
To determine the rated current, we can use the formula:
P = VI
where P is the power (in watts), V is the voltage (in volts), and I is the current (in amperes).
First, we need to convert 10 hp to watts:
10 hp x 746 watts/hp = 7460 watts
Next, we can solve for the rated current:
7460 watts = 120 volts x I
I = 7460 watts / 120 volts
I = 62.17 amps
Therefore, the rated current for the motor is 62.17 amps.
To calculate the field current, we can use Ohm's law:
Vf = If x Rf
where Vf is the field voltage, If is the field current, and Rf is the field resistance.
Since the motor is separately excited, we can assume that the field voltage is equal to the supply voltage, which is 120 volts.
120 volts = If x 100 ohms
If = 1.2 amps
Therefore, the field current for the motor is 1.2 amps.
To determine the rated current, we can use the formula:
P = VI
where P is the power (in watts), V is the voltage (in volts), and I is the current (in amperes).
First, we need to convert 10 hp to watts:
10 hp x 746 watts/hp = 7460 watts
Next, we can solve for the rated current:
7460 watts = 120 volts x I
I = 7460 watts / 120 volts
I = 62.17 amps
Therefore, the rated current for the motor is 62.17 amps.
To calculate the field current, we can use Ohm's law:
Vf = If x Rf
where Vf is the field voltage, If is the field current, and Rf is the field resistance.
Since the motor is separately excited, we can assume that the field voltage is equal to the supply voltage, which is 120 volts.
120 volts = If x 100 ohms
If = 1.2 amps
Therefore, the field current for the motor is 1.2 amps.
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A separately excited dc motor has an armature resistance Ra = 0.05Ω. The field excitation is kept constant. At an armature voltage of 100 V, the motor produces a torque of 500 Nm at zero speed. Neglecting all mechanical losses, the no-load speed of the motor (in radian/s) for an armature voltage of 150 V is _____ (up to 2 decimal places).Correct answer is '600.0 to 600.0'. Can you explain this answer?
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A separately excited dc motor has an armature resistance Ra = 0.05Ω. The field excitation is kept constant. At an armature voltage of 100 V, the motor produces a torque of 500 Nm at zero speed. Neglecting all mechanical losses, the no-load speed of the motor (in radian/s) for an armature voltage of 150 V is _____ (up to 2 decimal places).Correct answer is '600.0 to 600.0'. Can you explain this answer? for GATE 2024 is part of GATE preparation. The Question and answers have been prepared according to the GATE exam syllabus. Information about A separately excited dc motor has an armature resistance Ra = 0.05Ω. The field excitation is kept constant. At an armature voltage of 100 V, the motor produces a torque of 500 Nm at zero speed. Neglecting all mechanical losses, the no-load speed of the motor (in radian/s) for an armature voltage of 150 V is _____ (up to 2 decimal places).Correct answer is '600.0 to 600.0'. Can you explain this answer? covers all topics & solutions for GATE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A separately excited dc motor has an armature resistance Ra = 0.05Ω. The field excitation is kept constant. At an armature voltage of 100 V, the motor produces a torque of 500 Nm at zero speed. Neglecting all mechanical losses, the no-load speed of the motor (in radian/s) for an armature voltage of 150 V is _____ (up to 2 decimal places).Correct answer is '600.0 to 600.0'. Can you explain this answer?.
A separately excited dc motor has an armature resistance Ra = 0.05Ω. The field excitation is kept constant. At an armature voltage of 100 V, the motor produces a torque of 500 Nm at zero speed. Neglecting all mechanical losses, the no-load speed of the motor (in radian/s) for an armature voltage of 150 V is _____ (up to 2 decimal places).Correct answer is '600.0 to 600.0'. Can you explain this answer? for GATE 2024 is part of GATE preparation. The Question and answers have been prepared according to the GATE exam syllabus. Information about A separately excited dc motor has an armature resistance Ra = 0.05Ω. The field excitation is kept constant. At an armature voltage of 100 V, the motor produces a torque of 500 Nm at zero speed. Neglecting all mechanical losses, the no-load speed of the motor (in radian/s) for an armature voltage of 150 V is _____ (up to 2 decimal places).Correct answer is '600.0 to 600.0'. Can you explain this answer? covers all topics & solutions for GATE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A separately excited dc motor has an armature resistance Ra = 0.05Ω. The field excitation is kept constant. At an armature voltage of 100 V, the motor produces a torque of 500 Nm at zero speed. Neglecting all mechanical losses, the no-load speed of the motor (in radian/s) for an armature voltage of 150 V is _____ (up to 2 decimal places).Correct answer is '600.0 to 600.0'. Can you explain this answer?.
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A separately excited dc motor has an armature resistance Ra = 0.05Ω. The field excitation is kept constant. At an armature voltage of 100 V, the motor produces a torque of 500 Nm at zero speed. Neglecting all mechanical losses, the no-load speed of the motor (in radian/s) for an armature voltage of 150 V is _____ (up to 2 decimal places).Correct answer is '600.0 to 600.0'. Can you explain this answer?, a detailed solution for A separately excited dc motor has an armature resistance Ra = 0.05Ω. The field excitation is kept constant. At an armature voltage of 100 V, the motor produces a torque of 500 Nm at zero speed. Neglecting all mechanical losses, the no-load speed of the motor (in radian/s) for an armature voltage of 150 V is _____ (up to 2 decimal places).Correct answer is '600.0 to 600.0'. Can you explain this answer? has been provided alongside types of A separately excited dc motor has an armature resistance Ra = 0.05Ω. The field excitation is kept constant. At an armature voltage of 100 V, the motor produces a torque of 500 Nm at zero speed. Neglecting all mechanical losses, the no-load speed of the motor (in radian/s) for an armature voltage of 150 V is _____ (up to 2 decimal places).Correct answer is '600.0 to 600.0'. Can you explain this answer? theory, EduRev gives you an
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