How many poles does the motor have

Assignment Help Chemical Engineering
Reference no: EM131114889

A three-phase, 60-Hz induction motor runs at almost 1800 r/min at no load, and at 1710 r/min at full load.

(a) How many poles does the motor have?

(b) What is the per-unit slip at full load?

(c) What is the frequency of rotor voltages at full load?

(d) At full load, find the speed of (i) the rotor field with respect to the rotor, (ii) the rotor field with respect to the stator, and (iii) the rotor field with respect to the stator field.

Reference no: EM131114889

Questions Cloud

How did the prophets use the mosaic covenant : How was the history of ancient Israel influenced by the Mosaic covenant and the Decalogue? Give examples. What literary themes from the Pentateuch emerge in the writings of Isaiah, Micah, and Jeremiah?
Complete demand analysis providing a rationale for selection : Report the demographic and independent variables that are relevant to complete a demand analysis providing a rationale for the selection of the variables.
Marketing implementation is critical to success of any firm : Marketing implementation is critical to the success of any firm. Simply put, implementation refers to: how the marketing plan will be approved by top management. how the marketing plan will be put into action.
Non-standard web fonts : Say you were tasked with coding a design that used non-standard web fonts, how would you go about it?
How many poles does the motor have : At full load, find the speed of (i) the rotor field with respect to the rotor, (ii) the rotor field with respect to the stator, and (iii) the rotor field with respect to the stator field.
Full documents about investigatory projects : Please give me a file or link of full documents about investigatory projects regarding cures and/or environmental problems like deforestation, pollution, etc.
Approximately poisson in nature : A crew of mechanics at the Highway Department garage repair vehicles that break down at an average of ? =10 vehicles per hour (approximately Poisson in nature). The mechanic crew can service an average of 2 vehicles every 10 minutes with a repair tim..
How many poles does the machine have : What is the speed of the rotor field at full load (i) with respect to the rotor? and (ii) with respect to the stator?
Return on common stockholders equity : Cutler Corp. has a return on assets ratio of 12%. It plans toissue bonds at 8% and use the cash to repurchase stock. What effectwill this have on its debt to total assets ratio and on its return on common stockholders' equity? (Number example woul..

Reviews

Write a Review

Chemical Engineering Questions & Answers

  Dissolution of gold in aqua regia

It will dissolve, however, in aqua regia, a mixture of the two concentrated acids. The products of the reaction are the AuCl46- ion and gaseous NO. Write a balanced equation for the dissolution of gold in aqua regia.

  Calculate the tower height and what are the values of f

Calculate the tower height, Z, and tower diameter, D, needed so that the Z/D ratio is about 4 and at this optimum condition, what are the values of f, Tez, and air flow rate, G?

  Find one possible logic circuit to realize the output

For the segment Y3 to be turned on, develop the logic expression and find one possible logic circuit to realize the output in each case.

  What is annihilation in terms of nuclear processes

What is annihilation in terms of nuclear processes? Also, what are transuranium elements and how are they synthesized? Scientists have estimated that the earth's crust was formed 4.3 billion years ago.

  Operates at a low temperature of 25c

Consider an engine that operates at a low temperature of 25C and a higher temperature of 432C. Would it be possible to have an efficiency of 65% ?

  Design a heat exchanger for the duty

Design a Heat Exchanger for the Following Duty: Reduced crude oil leaving a distillation unit with a flow rate of 3166.04 kL/d at 268 oC and is to be cooled to 243 oC by exchange with 62.8 kg/s pre-flashed crude oil coming from pre-flash unit at 206 ..

  Determine thermal efficiency of the cycle

The exhaust pressure of the first turbine is 5.0 bars. The steam is then reheated to 440C. The condenser operates at one bar. Make-up is added at the condenser. Determine thermal efficiency of the cycle.

  Show that the rotor current torque power of a poly phase

show that the rotor current, torque, and electromagnetic power of a poly phase induction motor vary almost directly as the slip, for small values of slip.

  Recommend installation of the orifice meter

Manometers connected across the venturi and the orifice contain a non-miscible liquid (sp gr = 1.56) in contact with the liquid mixture

  What is the confidence interval for the true mean

What is the confidence interval for the true mean for a probability level of 0.95 and 0.99? How much could the confidence range be improved if the number of analyses were doubled assuming the original distribution remained unchanged?

  Mass percent of the original mixture

What is the composition by mass percent of the original mixture? Explain in detail how you arrived at this answer, writing down every step to the solution.

  Calculate the starting torque and the maximum torque

Neglecting stator resistance and rotational and stray-load losses, and assuming constant rotor resistance, calculate the starting torque and the maximum torque in per-unit of full-load torque, as well as the slip at which the maximum torque occurs..

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