Homework Answers
5. Induction motor The nameplate of an induction motor that is delta connected is shown below:...
5. Induction motor The nameplate of an induction motor that is delta connected is shown below: AC Induction Motor o HIGH EFFICIENT ORD. NO. 1LA0264 SE41 NO TYPE RGZESD FRAME 2067 H.P SERVICE 30.0 EATOR 1.15 AMPS. 35.0 VOLTS 460 R.P.M 1765 HERTZ 60 DUTY CONT 46 C AMR DATE CODE CLASS NEMA B КИ GNINA 93.0 INSUL DESION CODE NOME 01P END BRO SEPUK30 BRO 508C03.JPP3 o Made in Mexico SHEND GUCE@o Fig. 1.1C-AC Induction Motor Nameplate a. What...
Three-phase induction motor The three-phase induction motor nameplate gives the following informa...
Three-phase induction motor The three-phase induction motor nameplate gives the following information: 100 HP, 6 poles, 600 V, 60 Hz, PF =0.87. Rated motor slip s=0.0275 and rated motor current is 91.7 A. Measured at rated speed friction and ventilation losses are 1100 W. Measured between two motor terminals resistance is 0.305 Ω. f) For a load such where the motor rotates at the speed of 1180 r / min, determine shaft torque and calculate the mechanical power in HP,...
consider that an induction motor is connected to a 3 phase source and the motor is...
consider that an induction motor is connected to a 3 phase source and the motor is rotating in a particular direction. if the connections at the two terminals of the motor are interchanged, what will be the effect of the motor?
A 3 phase squirrel cage induction motor is connected to a variable speed drive. The motor...
A 3 phase squirrel cage induction motor is connected to a variable speed drive. The motor should be rated for : A. dc duty B. Brushless operation C. Design E D. Inverter duty
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...
If an AC induction motor says in nameplate that the power is 100 HP, and it...
If an AC induction motor says in nameplate that the power is 100 HP, and it has an efficiency of 88%. It is operating at a 90% of full load. What is the input kW to the motor?
8) The motor model for a 3-phase 480V 1750 RPM induction motor is shown below. Stray...
8) The motor model for a 3-phase 480V 1750 RPM induction motor is shown below. Stray losses are 1000W. Assuming it is running at full rated load in the United States, find: 0.01 j0.14 j0.14 0 _ 0.01 A 19 j16 30.01/18 ) Synchronous Speed= RPM Number of poles= Poles Slip= Stator current iz = Amps Rotor current lz= Amps Magnetization currently = Amps Watts HP Volts Power across the air gap= h) 3-phase shaft (brake) horsepower= Terminal Voltage "V"=...
high voltage techniques Q5. Calculate the efficiency of this High voltage motor. THREE PHASE INDUCTION MOTOR...
high voltage techniques
Q5. Calculate the efficiency of this High voltage motor. THREE PHASE INDUCTION MOTOR CEU CHINA ELECTRIC TYPE Y2-400-6 POWER FACTOR 0.82 RATED POWER 315 KW INSTALLATION STATOR 6000 V 39.5 A CONNY DUTY S 1 ROTORI A CONN INS.CL. F STANDARD JB/T10446 ALT. 1000 m TEMP 40 °C COOLING IC 411 FREQUENCY Hz PROTECTION CL IP55 WEIGHT kg 50 992 RATED SPEED r/min NO 25 DATE 18.10
Question 20: If the total input power of an induction motor is 13KW, what is the...
Question 20: If the total input power of an induction motor is 13KW, what is the air gap power of this motor if the total stator copper losses are 2.oKW, the friction and windage losses are 800W and the total core losses are 1.9 KW. Question 21: A three-phase Y-connected 250-V, 8-kW 50-Hz 4-pole induction motor has the following parameter values in Ω/phase referred to the stator: R1 0.294; R2 0.144 X1 0.503;X2-0.209; Xm 13.25 The total friction, windage, and...
THREE PHASE INDUCTION MOTOR Explain the effects of the capacitors on the values of the line...
THREE PHASE INDUCTION MOTOR Explain the effects of the capacitors on the values of the line current and the PF.
5. Induction motor The nameplate of an induction motor that is delta connected is shown below: AC Induction Motor o HIGH EFFICIENT ORD. NO. 1LA0264 SE41 NO TYPE RGZESD FRAME 2067 H.P SERVICE 30.0 EATOR 1.15 AMPS. 35.0 VOLTS 460 R.P.M 1765 HERTZ 60 DUTY CONT 46 C AMR DATE CODE CLASS NEMA B КИ GNINA 93.0 INSUL DESION CODE NOME 01P END BRO SEPUK30 BRO 508C03.JPP3 o Made in Mexico SHEND GUCE@o Fig. 1.1C-AC Induction Motor Nameplate a. What...
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...
8) The motor model for a 3-phase 480V 1750 RPM induction motor is shown below. Stray losses are 1000W. Assuming it is running at full rated load in the United States, find: 0.01 j0.14 j0.14 0 _ 0.01 A 19 j16 30.01/18 ) Synchronous Speed= RPM Number of poles= Poles Slip= Stator current iz = Amps Rotor current lz= Amps Magnetization currently = Amps Watts HP Volts Power across the air gap= h) 3-phase shaft (brake) horsepower= Terminal Voltage "V"=...
high voltage techniques
Q5. Calculate the efficiency of this High voltage motor. THREE PHASE INDUCTION MOTOR CEU CHINA ELECTRIC TYPE Y2-400-6 POWER FACTOR 0.82 RATED POWER 315 KW INSTALLATION STATOR 6000 V 39.5 A CONNY DUTY S 1 ROTORI A CONN INS.CL. F STANDARD JB/T10446 ALT. 1000 m TEMP 40 °C COOLING IC 411 FREQUENCY Hz PROTECTION CL IP55 WEIGHT kg 50 992 RATED SPEED r/min NO 25 DATE 18.10
Question 20: If the total input power of an induction motor is 13KW, what is the air gap power of this motor if the total stator copper losses are 2.oKW, the friction and windage losses are 800W and the total core losses are 1.9 KW. Question 21: A three-phase Y-connected 250-V, 8-kW 50-Hz 4-pole induction motor has the following parameter values in Ω/phase referred to the stator: R1 0.294; R2 0.144 X1 0.503;X2-0.209; Xm 13.25 The total friction, windage, and...
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