How many poles should the motor have

Assignment Help Electrical Engineering
Reference no: EM131025957

A60-Hz induction motor is needed to drive a load at approximately 850 rpm. How many poles should the motor have? What is the slip of this motor for a speed of 850 rpm?

Reference no: EM131025957

Questions Cloud

Advantages and disadvantages of using social media : Assess the management, organization, and technology issues for using social media to engage with customers. What are the advantages and disadvantages of using social media for advertising, brand building, market research, and customer service?
Solve the system of equations using the substitution method : Make sure to subscript where appropriate. Solve the system of equations using the substitution method. If the answer is a unique solution, present it as an ordered pair (x, y). If not, specify whether the answer is "no solution" or "infinitely man..
Identify the social problem and market failure : Identify the social problem, political controversy, and/or market failure that is at the root of the issue. Why might the public, or a portion of the public, believe that there should be a governmental solution to the issue?
Determine slip and frequency of rotor currents at full load : A 10-hp six-pole 60-Hz three-phase induction motor runs at 1160 rpm under full-load conditions. Determine the slip and the frequency of the rotor currents at full load. Also estimate the speed if the load torque drops in half.
How many poles should the motor have : A60-Hz induction motor is needed to drive a load at approximately 850 rpm. How many poles should the motor have? What is the slip of this motor for a speed of 850 rpm?
Find the new torque angle and power factor : We have a six-pole, 440-V-rms, 60-Hz delta connected synchronous motor operating with a constant developed power of 20 h p, unity power factor, and a torque angle of 10°. Then, the field current is reduced such that Br is reduced in magnitude by 2..
How is this system different from the rest : Write this system as an augmented matrix. Use your calculator and ¯nd the row echelon form and the reduced row echelon form. How is this system di®erent than the ¯rst? What row operation would move the augmented matrix from part (a) to this one?
What are values of slip and frequency of rotor currents : We have a 20-hp, eight-pole, 60-Hz, three phase induction motor that runs at 850 rpm under full-load conditions. What are the values of the slip and the frequency of the rotor currents at full load? Also, estimate the speed if the load torque dro..
Determine the best inventory costing system : Discuss the key factors that must be considered before making the determination. Provide specific details and a rationale for your decision.

Reviews

Write a Review

Electrical Engineering Questions & Answers

  Find the total dissipated power for the same resistor

The power dissipated in the resistor is 80 W when connected to a 10V source. Find the total dissipated power when the same resistor is connected to a 5V source.

  What is the voltage drop across the 570 ohm resistor

A circuit consists of two 1.0 k ohm resistors in series and this series being connected in parallel to a 570 ohm resistor. If the voltage drop across one of the 1.0 k ohm resistors is 4.5 V, what is the voltage drop across the 570 ohm resistor

  How much work did in halving the distance between plates

A parallel-plate capacitor is charged to a potential V0, charge Q0 and then disconnected from the battery. The separation of the plates is then halved. What happens to (a) the charge on the plates

  Generate the ideal current-voltage characteristics of diode

Use PSPICE to generate the ideal current-voltage characteristics of a diode from a reverse-bias voltage of 5 V to a forward-bias current of 1 mA, for an IS parameter value of (a) 10 15 A and (b) 10 13 A. Use the default values for all other parame..

  Determine what is the total power of the system

You have a laundry room where the following loads are connected to a 208V circuit: 2500W electric base board heater, 600W wash machine, 3600W dryer, and a 1000W iron. All loads are connected in parallel.

  What is the length of aluminum conductor of the same area

A coil of copper wire (ρ=10.37 micro-ohm-CM/ft) hasa length of 182.88 meters. What is the length of aluminum conductor(ρ=17 micro-ohm-CM/ft) of the same area and resistance asthose of copper coil

  Evaluate the discrete fourier transform of sequence

given a sequence x(n), where x(0) = 4, x(1) =3, x(2) = 2, and x(3) =1 with the last two data zero-padded as x(4) =0, and x(5) = 0, evaluate its DFT x(k)

  What will frequency be if 0.300kg are added to original mass

When a 0.900kg mass oscillates on an ideal spring, the frequency is 1.49Hz . A)What will the frequency be if 0.300kg are added to the original mass. Try to solve this problem without finding the force constant of the spring.

  Derive an expression for the optimum value of avalanche gain

Derive an expression for the optimum value of the avalanche gain opt M for which the signalto-noise ratio (SNR) becomes optimum by using the following expression for the excess noise factor: Fa( M)=KM+ (1-K ) (2-1/M). Assume that M^3 >> M .

  How many diffraction peaks are possible of x-rays beam

A beam of X-rays with a wavelength l of 0.15 nm is directed at a crystal whose planes have a spacing of 0.25 nm. How many diffraction peaks (each arising from a different order n) are possible

  What is the phase angle of a inductive susceptance

a.) For a given tank circuit resonance frequency, what is the parameter that determines the bandwidth b.) What is the phase angle of a inductive susceptance

  Define a sinusoidal voltage with a peak-to-peak value

A sinusoidal voltage with a peak-to-peak value of 15 v is applied to an RC high-pass filter. If the reactance at the input frquency is zero

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd