Q3. A 120V, 60Hz, 6-poles, V-connected three-phase induction motor has the followingparameters per phase referred to the stator: R₁ = 0.162, R'₂ = 0.292, X₁ = 0.15Q, X'₂ =0.2592 and Xm= 9.8. Claculate the following:I- The slip at which maximum torque occurs.II- The ratio of maximum torque to starting torque.III- The value of the maximum torque and starting torque.IV- The efficiency at maximum torque.

Answered: Image /qna-images/answer/34d23591-e5df-4714-a71c-acb0ac0a42b1.jpg

Q3. A 120V, 60Hz, 6-poles, V-connected three-phase induction motor has the following parameters per phase referred to the stator: R₁ = 0.1622, R'₂ = 0.292, X₁ = 0.15Q, X'₂ = 0.2592 and Xm = 9.89. Claculate the following: I- The slip at which maximum torque occurs. II- The ratio of maximum torque to starting torque. III- The value of the maximum torque and starting torque. IV- The efficiency at maximum torque.

Q3. A 120V, 60Hz, 6-poles, V-connected three-phase induction motor has the following parameters per phase referred to the stator: R₁ = 0.1622, R'₂ = 0.292, X₁ = 0.15Q, X'₂ = 0.2592 and Xm = 9.89. Claculate the following: I- The slip at which maximum torque occurs. II- The ratio of maximum torque to starting torque. III- The value of the maximum torque and starting torque. IV- The efficiency at maximum torque.

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

See similar textbooks

Similar questions

A 460-V, 25-hp, 60-Hz, four pole, Y-connected induction motor has the following impedances in ohms per phase referred to the stator circuit: R₁ = 0.641Ω R₂ = 0.3320 X₁ = 1.106Ω X₂ = 0.464Ω RM = 26.3Ω The total rotational losses are 1100 W and are assumed to be constant. The core loss is lumped in with the rotational losses. For a rotor slip of 2.2 % at the rated voltage and rated frequency, find the motor's a) Speed d) Pconv and Pout b) Stator current e) Tind and Tload c) Power factor f) Efficiency Activate
Please Help .... like for sure
The rotor of a 3-phase, 60-Hz, 4-pole induction motor gets a total of 120kW through the air gap with a rotor frequency of 3Hz. a. What is the rotor speed (RPM)? b. What is the rotor copper loss (W)?
tal At rest condition, the slip of induction motor is 0. Select one: True False In DC series motor when flux decreases, the speed w decrease zero remains same increase
Bvccccc
Define the working of the Three phase induction motor with the properly labelled diagrams
A 400V, 25hp, 60HZ, 4 pole, Y-connected induction motor has the following impedances in ohms per phase referred to the stator circuit: R1=0.6410, X1=1.106 Q, Rp=11.080, Xf=6.680 .The total rotational (windage and friction) losses are 1100 W and are assumed to be constant. The core loss is jumped in with the rotational losses. For a rotor slip of 3.2% at the rated voltage and rated frequency, the stator current is
2) A large 3-phase, 4000 Va (phase to phase), 60 Hz squirrel-cage induction motor draws a current of 385 A/phase. The total active power at the stator input terminals is 2344 kW, when operating at full load. The corresponding speed is accurately measured and found to be 709.2 r/min. The stator is connected in wye and the resistance between two stator terminals is 0.10 Q. The total iron losses are 23.4 kW and the windage and friction losses are 12 kW. Calculate the following: c) The total 1²-R losses in the rotor d) The load mechanical power (kW), torque (kN•m), and efficiency. S = Va · V3 - I S= Vy•3·I %3D
A three-phase, two-pole, 35 hp, 480 V, 60 Hz, Y-connected induction motor has the following constants in ohms per phase referred to the stator: R = 0.322N R2 = 0.196 Q X1 = 0.6752 X2 = 0.510Q Xm = 12.52 The total rotational losses are 1850 W and are assumed to be constant. The core loss is lumped in with the rotational losses. For a rotor slip of 3% at the rated voltage and rated frequency, determine the following: (a) The speed in rpm and in rad/s power factor (d) The developed power and output power (e) The developed torque and output torque (f) The efficiency. (b) The stator current (c) The
3. A 440V 60-hp six pole 60 hz A connected induction motor has the following parameters R1=0.048 R2= 0.035 Xm= 9.50 X1= 0.33 0 X2= 0.37 0 Pcore= 600W PF&W= 350W Use the Thevenin's Equivalent circuit concept to find: (a)Vth and Zth seen by the rotor circuit (b)The slip at which maximum torque occurs (c) the value of Max/pullout Torques (d) The starting torque.