Induction motors can also operate off 2 phase AC supplies. Outline the necessary electrical supply and...
Induction motors can also operate off 2 phase AC supplies. Outline the necessary electrical supply and mechanical winding arrangements for this type of motor.
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Induction motors can also operate off 2 phase AC supplies.
Outline the necessary electrical supply and...
A 2 pole ac induction motor operates on a 480 V three phase power system. The...
A 2 pole ac induction motor operates on a 480 V three phase power system. The motor is rated a 50 hp and 460 V with a full load shaft speed of 3400 rpm. The motor currently operates a 3510 rpm. determine the mechanical power the motor develops in hp using the slip method.
A 2 pole ac induction motor operates on a 480 V three phase power system. The motor is rated a 50 hp and 460 V with...
Alternating current (AC) machines are generators that convert mechanical energy to AC electrical energy and motors that...
Alternating current (AC) machines are generators that convert mechanical energy to AC electrical energy and motors that convert AC electrical energy to mechanical energy. The AC machine are categorized as synchronous machine and induction machine. (Mesin-mesin arus wlang-alik (AU) adalah penjana-penjana yang memukarkan tenaga mekanikal kepada tenaga elektrik AU dan motor-motor xang memukarkanm tenaga elektrik AU kepada tenaga mekanikal Mesin AU dikategorikan kepada mesin segerak dan mesin aruhan (ii) rotor frequency,f frekuensi pemtar,1 (1 Mark/ Markah) (iii) stator copper losses,...
A. A three-phase ac induction motor drives a mechanical load. The motor's terminal voltage is 470V,...
A. A three-phase ac induction motor drives a mechanical load. The motor's terminal voltage is 470V, 60 Hz. The motor's line current is 175 A, and the power factor is 0.85 lagging The motor's output power is 140 hp and the motor rotates at a speed of 1735 rpm. The motor's copper and core losses total 8.5 kW combined 1. Determine the number of poles of this motor 2. Determine the motor's shaft torque (N-m). 3. Determine the motor's rotational...
Question 2 [10 marks) A six pole, three phase induction motor, with a star connected stator...
Question 2 [10 marks) A six pole, three phase induction motor, with a star connected stator winding is energised from a 380V, 50Hz supply. The ratio of the stator to rotor turns is assumed 1.8 and a full load slip of 4%. If the respective per phase rotor resistance and standstill reactance are 0.120 and 0.8502, determine: a. Torque developed at full load b. The maximum torque and the speed at maximum torque
Consider a 50 kW, 3-phase, 380 V line-to-line, 50 Hz, 6 pole Y-connected wound-rotor induction motor....
Consider a 50 kW, 3-phase, 380 V line-to-line, 50 Hz, 6 pole Y-connected wound-rotor induction motor. The stator winding ac resistance is 0.1 Ω/phase. The effective stator-to-rotor turns ratio is 2. The exciting branch is negligible. It is found that when an external resistor of 0.09 Ω/phase is connected to the rotor terminals maximum starting torque of 1150 Nm is obtained. a. Compute the internal mechanical power and the internal torque developed by this motor when it drives a load...
For a 6-pole, 2-phase squirrel-cage induction machine, the following parameters are given: 10, .is . Žml,...
For a 6-pole, 2-phase squirrel-cage induction machine, the following parameters are given: 10, .is . Žml, .mas : 1 BrnII,? 0.5?, l?r 1mil The induction machine works as a motor being supplied by a 60-Hz source. The rotor speed is ar360 rads In his ip of operaion, s1A1. A; 25.1/1/1.9° A, calculate the following (i) Electromagnetic torque (6') (ii) Rotor copper loss due to the rotor winding resistance (5') (ii) Mechanical power delivered to the load. (6') Determine Vas, las,...
44. The direction of rotation of an induction motor depends on a. the frequency of the...
44. The direction of rotation of an induction motor depends on a. the frequency of the input voltage b. the strength of the magnetic field set up c. the phase sequence of the input supply lines and order in which they are connected to the stator windings d. whether the windings are connected in delta or star determines the speed of the rotating magnetic field a. the number of poles in the motor b. the frequency of the supply d...
Problem 3: Consider an 6 pole 3-phase AC induction motor being driven at 60 Hz a)...
Problem 3: Consider an 6 pole 3-phase AC induction motor being driven at 60 Hz a) b) c) d) When connected to a load, the motor outputs 2 kW of power assuming negligible rotational losses while rotating at a speed of 1070 rpm. What is the slip? (5 points) When connected to a load, the motor outputs 2 kW of power assuming negligible rotational losses while rotating at a speed of 1070 rpm. What is the developed torque? (5 points)...
Question 2: A large network supplies a three phase induction motor through a short feeder line. The following data are provided No-load Test Data: ho-load 480 V; Ino-load = SA; Pno-load 1.3 kw Blocke...
Question 2: A large network supplies a three phase induction motor through a short feeder line. The following data are provided No-load Test Data: ho-load 480 V; Ino-load = SA; Pno-load 1.3 kw Blocked-rotor Test Data: Volocked-rotor 52 V; Iblocked-rotor 34 A; Polocked-rotor 1.3 kw: frequencyblocked-Fotor 25 Hz Stator Resistance: Rstator 0.3529 n/mile; Length 3 miles (0.1+j0.56) Supply Feeder Data: Zfeeder HP: v,upply-440 V: Number of poles-4: Slip-2.5%; Ploss- 250 w a. Calculate the magnetizing impedance of the three phase...
Question 2: A large network supplies a three phase induction motor through a shor eeder line....
Question 2: A large network supplies a three phase induction motor through a shor eeder line. The following data are provided No-load Test Data. pRo-load 480 V; /w-loa.-5 A: Pre-loa,-1.3 kW Blocked-rotor Test Data: blocked-rotor-S2 V: /blocked-retor 4 A: Paiored 1.3 kW: frequencyelocked-rotor 25 Hz Stator Resistance: Rstator 0.3529 Ω Supply Feeder Data. Zreeder-(0.1 + j0.56) ถ/mile: Length's 3 miles System Data: Pina.-40 HP; Vsupp,-440 V: Number of poles-4: Slip-2S% 250 W Calculate the maghetizing lmpedance of the three phaso...
A 2 pole ac induction motor operates on a 480 V three phase power system. The motor is rated a 50 hp and 460 V with a full load shaft speed of 3400 rpm. The motor currently operates a 3510 rpm. determine the mechanical power the motor develops in hp using the slip method.
A 2 pole ac induction motor operates on a 480 V three phase power system. The motor is rated a 50 hp and 460 V with...
Alternating current (AC) machines are generators that convert mechanical energy to AC electrical energy and motors that convert AC electrical energy to mechanical energy. The AC machine are categorized as synchronous machine and induction machine. (Mesin-mesin arus wlang-alik (AU) adalah penjana-penjana yang memukarkan tenaga mekanikal kepada tenaga elektrik AU dan motor-motor xang memukarkanm tenaga elektrik AU kepada tenaga mekanikal Mesin AU dikategorikan kepada mesin segerak dan mesin aruhan (ii) rotor frequency,f frekuensi pemtar,1 (1 Mark/ Markah) (iii) stator copper losses,...
A. A three-phase ac induction motor drives a mechanical load. The motor's terminal voltage is 470V, 60 Hz. The motor's line current is 175 A, and the power factor is 0.85 lagging The motor's output power is 140 hp and the motor rotates at a speed of 1735 rpm. The motor's copper and core losses total 8.5 kW combined 1. Determine the number of poles of this motor 2. Determine the motor's shaft torque (N-m). 3. Determine the motor's rotational...
Question 2 [10 marks) A six pole, three phase induction motor, with a star connected stator winding is energised from a 380V, 50Hz supply. The ratio of the stator to rotor turns is assumed 1.8 and a full load slip of 4%. If the respective per phase rotor resistance and standstill reactance are 0.120 and 0.8502, determine: a. Torque developed at full load b. The maximum torque and the speed at maximum torque
For a 6-pole, 2-phase squirrel-cage induction machine, the following parameters are given: 10, .is . Žml, .mas : 1 BrnII,? 0.5?, l?r 1mil The induction machine works as a motor being supplied by a 60-Hz source. The rotor speed is ar360 rads In his ip of operaion, s1A1. A; 25.1/1/1.9° A, calculate the following (i) Electromagnetic torque (6') (ii) Rotor copper loss due to the rotor winding resistance (5') (ii) Mechanical power delivered to the load. (6') Determine Vas, las,...
44. The direction of rotation of an induction motor depends on a. the frequency of the input voltage b. the strength of the magnetic field set up c. the phase sequence of the input supply lines and order in which they are connected to the stator windings d. whether the windings are connected in delta or star determines the speed of the rotating magnetic field a. the number of poles in the motor b. the frequency of the supply d...
Problem 3: Consider an 6 pole 3-phase AC induction motor being driven at 60 Hz a) b) c) d) When connected to a load, the motor outputs 2 kW of power assuming negligible rotational losses while rotating at a speed of 1070 rpm. What is the slip? (5 points) When connected to a load, the motor outputs 2 kW of power assuming negligible rotational losses while rotating at a speed of 1070 rpm. What is the developed torque? (5 points)...
Question 2: A large network supplies a three phase induction motor through a short feeder line. The following data are provided No-load Test Data: ho-load 480 V; Ino-load = SA; Pno-load 1.3 kw Blocked-rotor Test Data: Volocked-rotor 52 V; Iblocked-rotor 34 A; Polocked-rotor 1.3 kw: frequencyblocked-Fotor 25 Hz Stator Resistance: Rstator 0.3529 n/mile; Length 3 miles (0.1+j0.56) Supply Feeder Data: Zfeeder HP: v,upply-440 V: Number of poles-4: Slip-2.5%; Ploss- 250 w a. Calculate the magnetizing impedance of the three phase...
Question 2: A large network supplies a three phase induction motor through a shor eeder line. The following data are provided No-load Test Data. pRo-load 480 V; /w-loa.-5 A: Pre-loa,-1.3 kW Blocked-rotor Test Data: blocked-rotor-S2 V: /blocked-retor 4 A: Paiored 1.3 kW: frequencyelocked-rotor 25 Hz Stator Resistance: Rstator 0.3529 Ω Supply Feeder Data. Zreeder-(0.1 + j0.56) ถ/mile: Length's 3 miles System Data: Pina.-40 HP; Vsupp,-440 V: Number of poles-4: Slip-2S% 250 W Calculate the maghetizing lmpedance of the three phaso...
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