a direct current motor is connected to a 240v supply, the motor is developing a 27kw...

Question

Question

a direct current motor is connected

to a 240v supply, the motor is developing a 27kw power output at a speed of 1500rpm.calculate the shaft tourqe

engineering Electrical-Engineering

Answer 1

Answer #1

Gliven: - Input voltage - 240V. output power = 27KW Speed (W) = 1500 rpm To find :- shaft Torque (Tsn) solution - Tsn = outp

Answer 2

Similar Homework Help Questions

A dc series excited motor is connected to 230V power supply. The resistance of the armature...

A dc series excited motor is connected to 230V power supply. The resistance of the armature winding is 0.25 ohms and the series winding resistance is 0.15 ohms. At 1100 rpm the motor consumes 50A. Calculate the speed of the motor when connected to a 200V power supply. Assume that the motor shaft torque is unchanged.
A motor in normal operation carries a direct current of 0.690 A when connected to a...

A motor in normal operation carries a direct current of 0.690 A when connected to a 120-V power supply. The resistance of in motor windings is 18.0 Ω. Determine the following values. (a) While in normal operation, what is the back emf generated by the motor? V (b) While in normal operation, at what rate is internal energy produced in the windings? W (c) What If? Suppose that a malfunction stops the motor shaft from rotating. At what rate will...
A 240V,1500rpm separately excited motor has the armature resistance of Ra=0.1ohm.The motor current is 30A a)...

A 240V,1500rpm separately excited motor has the armature resistance of Ra=0.1ohm.The motor current is 30A a) draw the equivalent circuit of the motor b)find cthe armature current Ia in ampere c)Find the electromotive force in volts d)Find the mechanical output power developed by the motor in watts e)calculate the efficiency of the motor in percentage f) calculate the mechanical torque produced by the motor in Nm

A shunt excited motor with Rm = 200Ω and Ra = 3Ω is connected to a...

A shunt excited motor with Rm = 200Ω and Ra = 3Ω is connected to a constant DC power supply of 230V. A back-emf of 195V is induced in the motor. The brush voltage drop is 1V / brush. Mechanical, magnetic and stray losses are a total of 200W. a) How much current does the motor draw? b) Calculate the shaft power of the motor
Problem 2: 50pts To monitor the rotation speed of a shaft, a generator motor attachment has...

Problem 2: 50pts To monitor the rotation speed of a shaft, a generator motor attachment has been suggested. Here a permanent magnet motor, shown below, is directly attached to the shaft. Stator (magnet) Armature winding Bearing Power supply Brush Commutator Rotor A voltmeter is connected to the power supply connection and is calibrated for various voltage-rpm values. a) Determine the governing equations for this system. (use the motor rotation as the input and the voltage generated as the output) b)...
A 240V ,1500rpm separately excited motor has the armature resistance of Ra=0.1ohm.The motor current is 30A....

A 240V ,1500rpm separately excited motor has the armature resistance of Ra=0.1ohm.The motor current is 30A. a) Draw the equivalent circuit of the motor b) Find the armature current (Ia) in ampere

A motor with ?? = 105 ???⁄? , ????? = 10?, and ???(?? 48?) = 4320???...

A motor with ?? = 105 ???⁄? , ????? = 10?, and ???(?? 48?) = 4320??? will be operated with a 48V supply. If this motor is connected to a mechanism that has frictional torque losses of ?? = 55 ???,what will its output shaft rotational speed be?
1. A 15 hp, 4 pole, 208 V, 60 Hz, Y-connected, three-phase squirrel cage induction motor has the ...

1. A 15 hp, 4 pole, 208 V, 60 Hz, Y-connected, three-phase squirrel cage induction motor has the following parameters in Ω/phase referred to the stator: R,-0.220, Xi = 0.430, X,-15.0, R2 0.130 and X2-0.430. Mechanical and core losses amount to 300 W and 200 W respectively for rated voltage. (a) The motor is fed with a 60 Hz, 208 V voltage. It runs with a slip of 4.5 %. Find the speed, shaft torque and power, efficiency and power...
A 240V compound machine with resistances of armature, shunt and series winding are 0.06ohm, 24ohm...

A 240V compound machine with resistances of armature, shunt and series winding are 0.06ohm, 24ohm, 0.002ohm respectively. The line current is 100A at 240V. find the Back EMF and the Armature current when the machine is connected as connected as: a. Long shunt compound motor. b. Short shunt compound motor. 6) A 240V compound machine with resistances of armature, shun and series winding are 0.062, 242, 0.022 respectively. The line current is 100A at 240V. find the Back EMF and...

give a circuit diagram of a electric motor connected to a 120 V AC supply through...

give a circuit diagram of a electric motor connected to a 120 V AC supply through a switch, with an ammeter and a voltmeter connected to the circuit to measure current, voltage and measure power. Will it be possible to calculate the power with the measurement of voltage and current? How can you enable the measurement of power by adding additional measuring instrument?