Determine the overall power factor of the motor and the load

Assignment Help Chemical Engineering
Reference no: EM131154169

A three-phase, wye-connected, cylindrical-rotor, synchronous motor, with negligible armature resistance and a synchronous reactance of 1.27 Ω per phase, is connected in parallel with a three phase, wye-connected load taking 50 A at 0.707 lagging power factor from a three-phase, 220-V, 60-Hz source. If the power developed by the motor is 33 kW at a power angle of 30°, determine:

(a) The overall power factor of the motor and the load.

(b) The reactive power of the motor.

Reference no: EM131154169

Questions Cloud

Find the required kva rating of a synchronous capacitor : Find the required kVA rating of a synchronous capacitor to improve the power factor to 0.9.
The advantages and disadvantages of merit pay : Read “The Advantages and Disadvantages of Merit Pay,” an article by Susan Heathfield writing for About.com. In an initial discussion board post, summarize what you have learned from this article in 3 - 5 sentences. Then, explain: What is the differen..
Why is it important to design compensation systems : Why is it important to design compensation systems that are internally equitable? What steps can organizations take to ensure that internal equity exists? What is your organization’s compensation philosophy? Do you think it is effective? Why or why n..
Determine the proper assessment methods : What are the patterns and characteristics you would look for during the screening of family members of a potential abused or neglected child? How do the characteristics of the abuser differ from the abused?
Determine the overall power factor of the motor and the load : A three-phase, wye-connected, cylindrical-rotor, synchronous motor, with negligible armature resistance and a synchronous reactance of 1.27 Ω per phase, is connected in parallel with a three phase, wye-connected load taking 50 A at 0.707 lagging p..
How does the marsica mrp-kanban example : The chapter notesthat kanban is not a planning tool but a control mechanism - What does this mean? How does the Marsica MRP-kanban example in the textbook illustrate the point?
Assessment of the nature of cheating by business students : Managerial Report Prepare a report for the dean of the college that summarizes your assessment of the nature of cheating by business students at Rocky University. Develop 95% confidence intervals for the proportion of all students, the proportion of ..
Issues of standardization and localization : What are the issues of standardization and localization in general for MNEs and how do they particularly manifest themselves in IHRM activities?
Define physical processes influencing climate and weather : Describe the main actions that you intend to put into place to test the hypothesis that you proposed in Question 2. Describe the way in which you would evaluate the success of your program. Include the results that you would deem as a success and ..

Reviews

Write a Review

Chemical Engineering Questions & Answers

  Calculate the efficiency of the induction generator

The constant losses from a no-load run as a motor are given to be 220 W, of which 70 W represents friction and wind age losses. Calculate the efficiency of the induction generator.

  Does this time sound reasonable

2. Alcohol is a diuretic agent, which increases urine production by reducing water reabsorption. Normal rate of water reabsorption is about 124 ml/min. Assume that the effect of alcohol on water reabsorption (in ml/min) is given by the following equa..

  Find the values of r1 r2 and r3

Suppose that both diodes have Rf = 10 Ω and Von = 0.5 V. Find the revised values of the resistors and voltage sources (v1 and v2) in order to accomplish the same objective.

  How do these solvents differ from the standpoint of safety

The lower flammable limit (LFL) of methanol in air is 6.0 mole%. Calculate the temperature at which the equilibrium percentage of methanol vapor in a saturated methanol-air mixture would equal the LFL. (This temperature is a rough estimate of the ..

  Determine the frequency of the stator-induced voltage

The uniform air gap is of length 1 mm, while the armature diameter is 0.5 m, and the axial length of the machine is 1.5 m. The field winding carries a current of 1 A (dc) and the rotor is driven at 3600 r/min.

  Composition of the liquid and the system temperature

A vapour stream that is 65 mole% styrene and 35 mole% toluene is in equilibrium with a liquid mixture of the same two species. The pressure in the system is 20 kPa. Use Raoult's law to estimate the composition of the liquid and the system temperat..

  Calculate the gross torque developed for a flux per pole

Calculate the gross torque developed for a flux per pole of 0.02 Wb and an armature current of 50 A. (Note: The number of parallel paths is equal to the number of poles for lap windings.)

  An exothermic process

From among the following, choose one which is not an exothermic process. 1. Ammonia synthesis 2. Methanol synthesis

  Determine the angular velocity and angular acceleration

Determine the angular velocity and angular acceleration of the blade at this instant

  Determine the number of poles of this ac motor

Comment on whether this motor is an induction motor or a synchronous motor.

  Faces and that the boundary layer develops naturally

a super tanker is 360m long and has a width of 70m and draft of 25m. assuming that the drag is mainly due to the skin friction at the bottom and side faces and that the boundary layer develops naturally,

  How many units of x should the firm use

how many units of x should the firm use?

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