(a) If this motor is started from a 460-V infinite bus, how much current will flow in the motor at starting? line i with an impedance of 0.50 +0.35 per phase is used to connect the duction motor to the infinite bus, what will the starting current of the motor be? What will the motor's terminal voltage be on starting?

(a) If this motor is started from a 460-V infinite bus, how much current will flow in the motor at starting? line i with an impedance of 0.50 +0.35 per phase is used to connect the duction motor to the infinite bus, what will the starting current of the motor be? What will the motor's terminal voltage be on starting?

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter32: Three-phase Motors

Section: Chapter Questions

Problem 6RQ: Name three factors that determine the torque produced by an induction motor.

See similar textbooks

Related questions

Q: the magnetic strengh of the field poles on a perment magnet DC motor cannot be varied a- true b-…

A: The speed control of the PMDC motor cannot be controlled by using flux control method as the flux…

Q: Which of the following types of DC motors are typically controlled by a DC drive? Chose all that…

A: In this question we will write types of DC motors are typically controlled by a DC drive

Q: What are the three basic types of three-phase motors?

A: There are three basic types of three-phase motors, which are categorized based on the way they are…

Q: Q.36 Name three factors that determine the torque produced by an induction motor. Select one or…

A: Those three factors are following in which torque depends upon:- i) the magnitude of rotor current.…

Q: If the armature current in a dc machine is 400A, what should be the current in each winding if the…

A: Note In Lap winding, Number of pole (P) = Number of Parallel path (A) In Wave winding, Number of…

Q: 9. As a DC motor begins to spin, what increases inside the motor? Power Current Torque Counter EMF

A: This question is related to electrical machines- DC machines

Q: what is doubly fed induction motor how it works and also examples based on this motor.

Q: 8. What happens to the magnitude of the magnetic field on the Rotor when an induction machine speed…

A: The solution is given below

Q: What does 50hp induction motor mean? What does a 10hp load mean

A: In this question we will write about induction motor hp and load hp mean .....

Concept explainers

Single Phase Induction Motor

The single-phase induction motor or engine consists of a single rotating phase in the stator and a rotating cage in the rotor. When phase one supply is connected to the stator winding, a magnetic field is generated. In the pulsating field, the rotor does not rotate due to inertia. So, a single-phase import motor does not start and requires some initial methods.

Question

What is this motor's starting torque?

6-21. A 460-V, 10 hp, four-pole, Y-connected, Insulation class F, Service Factor 1.15 induction motor has the
following parameters
R₁ = 0.54 2
X₁ = 2.093 2
CS Cam Bapper
For a slip of 0.02, find
R₂ = 0.488 2
X, = 3.209 Ω
2
misc
SCW
50
XM = 51.12 2
Pore = 150 kW

(a) If this motor is started from a 460-V infinite bus, how much current will flow in the motor at
starting?
b) If transmission line with an impedance of 0.50+ j0.35 2 per phase is used to connect the
duction motor to the infinite bus, what will the starting current of the motor be? What will the
motor's terminal voltage be on starting?

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1: Given

VIEW

Step 2: Current flow at the starting

VIEW

Step 3: Phase voltage of the applied voltage

VIEW

Step 4: (b) Line current at the starting

VIEW

Step 5: At starting the motors terminal voltage is the drop across the rotor and stator

VIEW

Solution

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 6 steps with 18 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, electrical-engineering and related others by exploring similar questions and additional content below.

Similar questions

A 110 V, 60 Hz, 6 — pole single phase induction motor 1/3 hp has the following equivalent circuit impedances: RI = 1.52 ohm, R2 = 3.13 ohm and xl =2.10 ohm, x2 =1.56 ohm. Xm=58.2 ohm, The friction, windage and stry losses =16W, the core loss = 35 W. For a slip of 0.05, calculate (a) input current, (b) power factor, (c) developed power, (d) output power, (e) speed (f) in put power (g) air gab power (h) T ind (i) T load (j) efficiency.
Thanks
Answer is 2.93 hz. Take No. Of poles = 2.
The name plate of single phase induction motor has following data output 373W,230V, frequency 50Hz. Input current 2.9A and power factor is 0.71. Speed 1420 rpm What is efficiency of motor.
6- Which of the following supply is given to the rotor winding of 3-Phase Induction Motor: a) DC Supply b) AC Supply c) No Supply d) Pulsating Supply 7- 3-Phase Induction Motor will have Starting Torque and Starting Current a) High, High b) Low, Low. c) High, Low d) Low, High 8- Which of the following method is used for controlling the speed of an induction motor: a) Changing number of stator poles b) Supply voltage control c) Frequency control d) All the options are correct 9- Which of the following method cannot be used for starting of 3-Phase Squirrel Induction Motor: a) Star-Delta Starting b) Line resistor startling c) transformer Starter d) Rotor Resistance Starting 10- The rotor of a stepper motor has no: a) windings b) commutator c) brushes d) all of the above
Here it is the equivalent circuit of and induction motor and it is per phase circuit my question is name for me the variable for example R1 is the winding resistance and so an the all variable and please show me a pic of the real machine with the variable for example for R1 happens because of the winding i need to see the winding in the real machine, please help me to understand well
Please solve , last time i got wrong answer
The winding of a 4-pole alternator having 36 slots and a coil span of 1 to 8 is short-pitched by ........... degrees. 150 40. 90 20 Brushless excitation system consisting of: Stator field winding and power diodes stator and rotor field winding and capacitor stator and rotor field winding and power diodes Everything mentioned in the options Full Name : *
Please solve 209V, three-phase, Six poles, Y-connected induction motor has the following parameter: R1=0.128 Ohm, R'2=0.0935 Ohm, Xeq=0.49 Ohm. the motor slip at full load is 2% and for a Fan-Type load, Calculate following below : I have the Final answers and I do need to step by step which the formula and solution. Please if you use handwriting to write clearly and big. Thanks, The final and correct answers are: Problem3 (Reducing supply voltage) a) motor speed: 1163.3 rpm, b) starting torque= 71.93 Nm, c)starting current=179.5A, efficiency= 93.04%
Q3 A 50 Hz split-phase induction motor has a resistance of 50 and an inductive reactance of 200 in the main winding as well as starting winding. Determine the value of resistance and capacitance to be added in series with the starting winding to send the same current in each winding with a phase difference of 90°. Ans[ 14.99 Ω, 127.5μF]
A large 3-phase, 4160 V, 60 Hz, squirrel-cage induction motor draws a current of 400 A and the total active power of 2500 kW when operating at full-load. The corresponding speed is accurately measured and is found to be 1178 r/min. The stator is connected in wye and the resistance between two stator terminals is 0.15 0. The total iron losses are 26.5 kW and the windage and friction losses are 15 kW. Calculate the following: The power factor at full-load The active power supplied to the rotor The total I²R losses in the rotor The load mechanical power [kW], torque [kN.m], and efficiency [%] a. b. C. d.
A 3 phase AC induction motor is operating at no load. What is the power factor? Group of answer choices A) leading B) lagging C) neither leading nor lagging