Answered: Calculate the rotor copper loss if the…

Calculate the rotor copper loss if the friction and windage losses is 150 W. A 6 pole, 3 phase induction motor runs at speed 1164 rpm when the shaft torque is 170 N-m and the frequency is 60 Hz.

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: D3 D2 D1 DO SO S1 S2 S3 1101 B 0110 B 0101 B 1011 B

A: The solution is given below

Q: Determine the resistance of a four-band resistor having a color sequence of red, yellow, black and g...

Q: A digital communication link carries binary-coded words representing samples of an input signal x(t)...

Q: For the circuit given below, assume Vcc= 15V, Rc= 18 KΩ, RE= 8.6 KΩ, RB1= 160 KΩ, RB2= 100 KΩ, β=100...

Q: 1. Find the thevenin voltage (VTH), thevenin resistance (RTH), load voltage (VL) and load current (I...

A: The solution is given below

Q: Match each of the following terms with its be description. DRAM SRAM NV-RAM EPROM A. Uses floating g...

Q: total resistance of the circuit, total Current and total Power of the circuit; b) the current passi...

Q: A single-phase semi-converter is operated form 120 V, 50 Hz AC supply at a firing angle of 30 degree...

A: Given: A single phase semi-converter is operated from 120 V, 50 Hz with, Firing angle, α=30°

Q: Q4: For the circuit shown, calculate the value of the capacitance (C,) if the resonant frequency is ...

Q: ------ the emitter voltage For pnp transistor in the active mode, the base voltage is O greater than...

A: Answer: less than Explanation: a. It is not a valid option. if the base voltage is greater than ...

Q: 1- Consider the circuit shown in Fig. 1. Given that R;=1.5kN, R;=1.2kN, R3=1kN and R1=1.8kN, find th...

Q: A series RL circuit has a resistance of 6 ohms and a inductive reactance of 10 ohms. If connected ac...

A: It is given that: R=6 ΩXL=10 ΩV=120 V

Q: For a BJT transistor if VCC=8V, VCE= 8V, the transistor will operate in region cutoff active saturat...

A: Active

Q: a. What is the conversion efficiency of an amplifier in which the effective value of the current thr...

A: The solution is given below

Q: For the circuit shown below, find the equivalent resistance (in ohms) across the voltage source Vs. ...

Q: A) Briefly explain the effect of increasing the modulation index value on power efficiency in Full- ...

A: According to the question, we need to discuss A) Briefly explains the effect of increasing the modu...

Q: 1. In free space, let Q1 = 10nC be at P1(0,-4,0), and Q2 = 20nC be at P2 (0,0,4) a. Find E at the or...

Q: A 220 V series motor takes 15 A and runs at 700 rpm. The armature resistance including the resistanc...

A: The solution is given below

Q: Determine the maximum voltage that can be applied across the series combination of a 150 ohm, 2 watt...

Q: Hw2.1-3: 3-phase, 2-winding, 12 MVA, 30/132 KV, star/delta, 50Hz transformer of equivalent leakage r...

A: It is given that: MVA=12V1/V2=30/132 KVf=50 HzXl=17 ohmcosϕ=0.75

Q: 25 1. A field is given as G = () (x ā, + yā,). Find: (x²+y2, a. a unit vector in the direction of G ...

Q: A long-shunt compound generator delivers a load current of 50 A at 500 V and has armature, series fi...

Q: f (t) = t² cos 3t u(t)

A: Given, f(t) = t2cos(3t)u(t)

Q: 1) Find out the impulse, step, and parabolic response of the 1 order control system of transfer func...

Q: A plane wave propagating in a lossless dielectric medium has an electric field given with a frequenc...

Q: Q 2. What current flows through the Zener diode? 1.8 k2 Iz 15 V Vz = 12 V

Q: L[e³t cos(4t) µ(t)]

Q: for the cct shown find Vo f io

Q: Cunent (lales O-012A Rz 23 O-13 A O.O1S A 12 0.027 A

A: Resistors, inductors and capacitors form an integral part of any electrical circuit. A source, eithe...

Q: 2. Let the data register AX have the content 67BF H. What would the PUSH AX command realize meaning ...

A: AX =67BF H PUSH AX

Q: 6. In the circuit below, calculate the load current, load voltage, load power, diode power, and tota...

Q: 1. Connect the circuit shown below. 2. Set the supply voltage to 8v and calculate the current in the...

Q: The true value of a current is 10mA and it is indicated with a digital ammeter as 12mA. The absolute...

A: Given: True value of current, Itrue=10 mA Measured value, Imeasured=12 mA

Q: the circuit in Figure 1 with R = 470k2, C = 47µF and source voltage about 5V. Place the switch in th...

A: a. The circuit is shown below: The time constant of the circuit of the above RC circuit is calcula...

Q: Find V0 in the network using norton's theorem

A: In this question, We need to find V0 in the network using norton's theorem?

Q: a I1 620°v 21x 10 HE b 10 I2 -jia I3 I4 2Vx jia 12 Ix le

Q: 1) Find out the impulse, step, and parabolic response of the 1 order control system of transfer func...

A: Answer -

Q: sint * cos t

A: The solution is given below

Q: Draw the diagram of a full wave bridge type power supply circuit in your own words discuss in detail...

A: The full-wave bridge type power supply circuit is shown below:

Q: Op-amps are ideal, supplied with +/-15V. wma 1st diode approximation. a. Plot Vo(t) b. Plot Ii(t)

A: According to the question, for the given figure as shown below We need to plot (a) Vo(t) (b) Ii(t) ...

Q: Consider the following circuit.

Q: Determine the length ℓ of the resistance of the insulation in a length l of a coaxial cable.

Q: (9) The hysteresis losses in electrical machines reduced. a- By core lamination. b- By core isolatio...

A: 9) The hysteresis losses in electrical machine can be reduced by using material having least hystere...

Q: 1. Find the transfer function, G(s) = V,(s)/V;(6), for the operational amplifier circuit shown in th...

A: As per company guidelines we can solve only first question kindly post another question separately

Q: Ci Find the transfer function for the following system. RI R4 R1 R2 R3 C2 ei

A: We should find the transfer function i,e. Laplace transform of output/ (Laplace transform of input)...

Q: Neglecting saturation, if the current taken by a series motor is increased from 10 A to 12 A, the pe...

A: Given: A DC series motor having, Initial current, I1=10 A Final current, I2=12 A Neglecting saturati...

Q: キn:Iエ, 2はる,, 2V3 PX,S C4 10 nF In' 1oov 12 ell V2 L1 R1 47 Q V3 3.3 mH

A: The solution is given below

Q: the cct shown find Vo f i. 8Ke Va io Skr vb V。そEL 1oka

Q: An RL circuit has an emf of 5V, a resistance of 50Ω , an inductance of 1H and no initial current. Fi...

Q: Determine the following: (a) Total Current and Total power of the circuit; (b) the current passing...

Concept explainers

Synchronous Motor

The synchronous motor is an AC electric type motor where at a steady-state the shaft rotation is synchronized with the supply current variable-frequency. To an integral number of AC cycles, the rotation period is exactly equal. The stator of the motor in the synchronous motor contains multi-phase AC electromagnets due to which a magnetic field is created that rotates in time with the oscillation of the line current. The rotor contains a permanent magnet and the rotor rotates in synchronization with the stator field at the same rate and provides the second synchronized magnetic field which is rotating in nature as a result. When the synchronous motor is supplied with independently excited multi-phase AC electromagnets on both the rotor and the stator, it is termed as a doubly-fed machine. The most widely used AC-type motors are the synchronous AC motor and the induction AC motors.

Question

Calculate the rotor copper loss if the friction and windage losses is 150 W. A 6 pole, 3 phase induction motor runs at speed 1164 rpm when the shaft torque is 170 N-m and the frequency is 60 Hz.

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

VIEW

Step 2

VIEW

Step 3

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 3 steps with 3 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

Name three factors that determine the torque produced by an induction motor.
What are the advantages and disadvantages of using the following types of motors? shaded-pole motor PSC motor split-phase motor capacitor-start–capacitor-run motor
A three-phase induction motor is supplied with power from a 60-Hz source. At full load the motor speedis 1728 rpm, and at no load the speed is nearly 1800 rpm. At full-load conditions, determine thefollowing: 1. speed of rotor field wih respect to the rotor 2. speed of rotor field with respect to the stator 3. speed of rotor field with respect to the stator field.
A 3 phase induction motor is wound for 6 poles and is supplied fromn 50-Hz system. Calculate 1) the synchronous speed 2) the rotor speed, when slip is 2% and 3) the frequency of the rotor currents at standstill.
A 3-phase 440V, wye connected induction motor has a star-connected stator and delta connected rotor with a turns ratio of 10. The rotor resistance and standstill reactance per phase are 0.01Ω and 0.2Ω respectively, what should be the value of external resistance (in Ω) that must be inserted to the rotor circuit in order to obtain maximum torque at starting?
A three phase induction motor with supply frequency of 60 Hz, 8 poles. If the slip is 2.5 % at a certain load, determine (a) the synchronous speed, (b) the speed of the rotor (c) the frequency of the induced e.m.f in he rotor and (d) speed of the induction motor if the slip changes to 6 %
A 3-phase 9-pole,50Hz, star connected induction motor has an emf 520 V(L-L). The stator winding has a synchronous reactance of 2.5 Ohms/phase. Induction machine operates at rated voltage and at a leading power factor of 0.85. Shaft power is 15 Kw and the excitation emf is 500 V. (a). Determine the load angle, armature current in per unit and the power factor of the alternator. (b). The alternator is now made to operate at another value of excitation emf which results in the same values of power output and armature current. Under these conditions, find the excitation voltage, load angle and the power factor. (c) If the excitation in (a) and that obtained in (b), which is more likely to be used in practical situations and and why? (d) With the alternator output remaining constant, the alternator excitation is increased by 15%. Find the new values of armature current, load angle and pf? (e) Calculate the total steam output of the alternator delivered to the prime mover? (f) Draw the…
A 6-pole, 50-Hz squirrel-cage induction motor runs on the load at a shaft speed of970 rpm. Calculate a) the percentage slip and b) the frequency of the inducedcurrent in the rotor.
The rotor resistance and standstill reactance of a 3-phase induction motor are respectively 0.015 ohmsand 0.09 ohms / phase. At normal voltage, the full-load torque at the full-load speed. b.) Calculate thepower factor.
What is The total losses of 3-phase induction motor at 4A armature current and 1.14Ω rotor external resistance. And the practical result ( T=9.5 N.m, N=1196.17 rpm, Pph=600 watt)
Type your question here Calculate the torque developed per phase for a 6-pole, 60 Hz, 3-phase induction motor at a slip of 5%, if the motor develops a maximum torque per phase is 250 N.m while running at 870 r.p.m.
3-phase induction motor is wound for 8-pole and is supplied from 50 Hz system calculate (1) the synchronous speed, (ii) the speed of the motor when slip is 8% and (iii) the rotor current frequency when the motor runs at 1200 r.p.m.