A 3-phase, 150 hp, 460 V, 60 Hz, 6-pole induction motor was subjected to certain performance tests. The test result readings were as follows: full load current = 202 A; full load torque = 676.8 lb-ft. Find the percentage slip.

A 3-phase, 150 hp, 460 V, 60 Hz, 6-pole induction motor was subjected to certain performance tests. The test result readings were as follows: full load current = 202 A; full load torque = 676.8 lb-ft. Find the percentage slip.

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: Noise is added to a signal in a communication system

A: The correct option along with the explanation is provided in the following section.

Q: Which of the following elements of electrical engineering cannot be analyzed using Ohm's law? a)…

A: This question belongs to circuit theory . It is based on the concept of ohm's law. Have a look at…

Q: (b) Find the inverse Fourier transform of the following: 2 sin 5@ (i) √2π.w

A: Given: Fourier transform X(jw)=2sin5ω2πω We have to compute inverse Fourier transform of the above…

Q: QUESTION (3) In your own words, discuss the different types of hydro turbines available and under…

Q: It is powered from a grounded Y-balanced three-phase source. The installations have four balanced…

A: Given Four loads Load 1: 150 kVA Y with pf 0.8 (+), Load 2: 100 kW ∆ with pf 1.0, Load 3: 120 kW Y…

Q: Kindly give the copy solution. Typing is hard to understand

Q: No energy is stored in the circuit at the time that the switch is closed. a. Find Vo(s). b. Use the…

Q: A) What does VCO stand four? Show by drawing the relationship between its input and output signals.…

A: VCO stands for Voltage-Controlled Oscillator This is an oscillator whose output frequency is…

Q: 3. What is the total current for a circuit with a voltage in the source equals 15 V and three…

A: Given that A source voltage VS=15 V Three resistors are 4 ohms, 5ohm and 5ohm. Find the total…

Q: Find the inverse Fourier Transform of X(jω) = 1 / (4+ jω)^2 using convolution property.

Q: 6 H Maximum Power Transfer Example 2.5 nF 60 ΚΩ N Z₁₂ Determine the load impedance that will…

Q: 6. Explain following with examples and diagrams. a. Load curve b. Plant capacity factor c. Mean time…

Q: In pulse amplitude modulation,

A: The correct option along with the explanation is provided in the following section.

Q: Q4:- Find the Thévenin equivalent circuit for the network external to the resistor R. for the…

A: Given that Resistance RL=5 Ω, 10 Ω, 100 Ω The circuit is shown below.

Q: In parallel RLC circuit if the circuit resistance is (60) Ohm and Inductor reactance is (95) ohm and…

A: Given a parallel RLC circuit having, Resistance, R=60 Ω Inductive reactance, XL=j95 Ω Capacitive…

Q: In pulse amplitude modulation, a. Amplitude of the pulse train is varied b. Width of the pulse train…

A: The correct option along with the explanation is provided in the following section.

Q: For the system below, calculate y (t)at t =3.8 for a step input u (t) =6.4? * (t) = [ 1+22x(t) + 2…

A: Given:- x˙t=0k1+k2-k1-k2xt+02utyt=01xt Where, k1=7.8k2=9.2

Q: A balanced Y-connected load absorbs in total 3 kW at a power factor of 0.6 lagging. If the line…

A: Given: A balance Y-connected load has PL=3 kWcosθ=0.6VL=500 V

Q: Find the total resistance between 'a' and 'b' for the circuit given below. 20 Q 16 Q 20 Ω 18 2 Rab b…

A: The resistor network can be reduced by consider reducing the parallel connected and series connected…

Q: Exe 1. A half-wave rectifier has a source of 120 V rms at 60 Hz and an R-L load with R=10 Ω and L=…

A: Given data: The frequency f=60 Hz The resistance R=10 Ω The inductance L=10×10-3 H Beta β=3.5…

Q: . A voltmeter having an internal resistance of 50Ω experiences maximum deviation when a current of…

Q: Zi 82 ΜΩ F 11 ΜΩ +20 V Rs 610 Ω 2 ΚΩ H Ipss = 12 mA Vp=-3V rd = 50 ΚΩ Cs Vo Το

A: Give:- IDSS=12 mAVP=-3Vrd=50 kΩ We have to find the voltage gain of the given amplifier.

Q: Determine the Fourier Transform of the following:

A: It is given that: ft=t0<t<12t-11<t<20otherwise

Q: Find i(t) when t < 0

A: It is given that:

Q: 8. An AC sine wave has an effective value of 100 V. What is the peak value of the waveform? A. 96.3…

A: Given: An AC sine wave with Effective value, Vrms=100 V

Q: The sequence x[n] = cos was obtained by sampling a continuous time signal x(f) = cos(f), -- < 1<a at…

Q: Show that as shown the text is Kirchhoff’s loop rule as applied to the circuit as shown.

Q: POWER SUPPLY + 15 V Rs 2.2 ΚΩ ww |||

A: Given data, Forward voltage of LED, Vf=2.0 V

Q: The intrinsic impedance of the medium whose, σ = 0, ε, = 4, μ, =1 40 ΠΩ 9Ω 120 ΠΩ 60 ΠΩ

Q: For the Ladder logic diagram given below-decribe the actions for Lamp L1 in the first case and…

A: Two ladder logic diagrams is given in the question. There are two cases for each ladder logic…

Q: A 0.250 H inductor is joined in series with an 8 µF capacitor. Find the supply frequency in order…

Q: In pulse amplitude modulation, ■. Amplitude of the pulse train is varied . Width of the pulse train…

A: The solution along with the explanation is provided in the following section.

Q: Find the load impedance ZL that would absorb the maximum power. 152-10° V rms 00 OLCHAR +- 2415°…

Q: Q4:- Find the load impedance (ZL.) for the network in Fig.3 for maximum power to the load and find…

A: Given:

Q: Consider the circuit shown below, find the current is. Τ 5Ω Μ 10 Ω Μ 15 Ω M 30 V

A: Given,

Q: 8kQ 22kQ 60kQ kHz 4.7kQ 0.05µF For the given VCO circuit, a) Calculate flimit and check its…

A: An VCO refers to a voltage controlled oscillator . The output of the oscillator is a instantaneous…

Q: uestion 1 The output of 555 timer is given above. a) What is the mode settings. It is in b) From the…

A: As per the guidelines of bartleby i need to answer first three subparts only so kindly repost other…

Q: In a DC machine, rectification process is carried out in order to get unidirectional output (DC).…

Q: A balanced delta connected load contains 8 + j4 ohms per phase, while a balanced wye connected load…

Q: In the figure, C= 0.4 µF, E = 20 V, R1 = 10 k2, and R2 = 15 k2. Initially, the switch S is closed a…

A: The required parameters can be calculated by analysing the circuit before time t=0 and after time…

Q: 1) Timing Problem: For the following circuit calculate the following:

Q: Calculate the reactive power absorbed by the load shown below when its impedance is 34+j46 and Ix =…

Q: In a DC machine, rectification process is carried out in order to get unidirectional output (DC).…

A: The correct option along with the explanation is provided in the following section.

Q: A filter with a positive phase shift is non-causal, i.e. it looks into the future. This is not…

A: The filter in an electronic circuit is used to remove the undesired part of the frequency band from…

Q: given the vector field G= 24xyax+12(x2+2)ay+18z2az, find G at P if P is (1,2,-1)

Q: Find ix and ly 0.5V 5k52 -www ix 8k42 10k (2 2 2k02

Q: What Is branch datapath?

A: Branch datapath : A datapath which is also written as data path is the path which consist of…

Q: A non-sinusoidal voltage consists of a fundamental and a third harmonic. If the effective value of…

Q: 5G base station used for wireless communications operates at 30 GHz. We will consider the down-link…

Q: The cutoff frequency, in Hz, for a low pass filter with R = 105 kiloOhms, and C = 20 nanofarads is…

Concept explainers

Three Phase Induction Motor

The induction motor is an electric motor that runs on AC (alternating current) and it is of two type single phase motor that work on single-phase power supply and three-phase motor that work on three-phase power supply.

Question

Expert Solution

This question has been solved!

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

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps with 2 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

What are the various losses in an induction motor? On what factors do they depend? IV. V. List the different types of stray load losses in an induction motor.
An 8 pole, 50 Hz slip ring induction motor runs at a slip of 2.67% on full load. The rotor resistance per phase of the winding is 0.2 ohm. What external resistance per phase must be added in the rotor circuit so that the motor now runs ate a slip of 17.33% such that the torque remains same in both the cases. (Ans: 1.1 ohm)
An induction motor having full load torque of 60 Nm when delta-connected develops a starting torque of 120 Nm. For the same supply voltage, if motor is changed to star -connection, then starting torque developed will be Nm.
A three –phase, 440V, 50 Hz, 6 – pole induction motor running at 950 rpm takes 50 kW at certain load. The friction and windage loss is 1.5 kW and the stator losses = 1.2 kW. Determine the output from the rotor. (a). 42.68 kW (b). 46.48 kW (c). 48.80 kW (d). 44. 86 kW
A 110-V, 1-phase, 4-pole, 60-Hz induction motor has the following circuit constants: R1 = R2’ = 1.6 ohm,X1 = X2’ = 1.8 ohm, Xm = 60 ohm; core loss is 16 W and friction and windage loss is 12 W. Determine theefficiency of the motor at 0.04 slip by using (a) the exact equivalent circuit and (b) the approximateequivalent circuit
Torque-speed characteristics for three phase induction motor 4. Discuss the following (rated torque, starting torque, break down torque).
A 220 V DC series motor runs drawing a current of 30 A from the supply. Armature and field circuit resistances are 0.4 and 0.1 respectively. The load torque varies as the square of the speed. The flux in the motor may be taken as being proportional to the armature current. To reduce the speed of the motor by 50% the resistance in ohms that should be added in series with the armature is
What is The efficiency of 3-ph induction motor. at (Is=4.5A, T=13 N.m, N=1333 rpm, Pph=864 watt ) ?
1. Describe the constructional features and characteristics, of a induction motor that would be used in Lathe machine. Identify another application for this motor? 2. Describe the Torque-Slip characteristics of a three phase induction motor.
An 3-phase induction motor(IM) has full load slip = 0.5%. If the rotor circuit resistance is increased so that R2new =2R2old, then the slip at which the motor develops the same full load torque is=.. * ......
A four-pole, single-phase, 120 V, 60 Hz induction motor gave the following standstill impedances when tested at rated frequency:Main winding : Zm =1.5+j4 ohmsAuxiliary winding : Za =3+j6 ohmsa) Determine the value of external resistance to be inserted in series with the auxiliary winding to obtain maximum starting torque as a resistor split-phase motor.b) Determine the value of the capacitor to be inserted in series with the auxiliary winding to obtain maximum starting torque as a capacitor-start motor.c) Determine the value of the capacitor to be inserted in series with the auxiliary winding to obtain maximum starting torque per ampere of the starting current as a capacitor-start motor.d) Compare the starting torques and starting currents in parts (a), (b), and (c) expressed as per unit of the starting torque without any external element in the auxiliary circuit, when operated at 120V, 60Hz.
7- A 6-pole, 50-Hz, 3-0 induction motor is running at 950 rpm and has rotor Cu loss of 6 kW. Its rotor input is......kW (a) 120 (b) 60 (c) 6.3 (d) 66 8- The number of slip rings on a squirrel cage induction motor is usually (a)Two (b) Three (c) Four (d) None