Maurice Tutor

(5)

$15/per page/Negotiable

About Maurice Tutor

Levels Tought:
Elementary,Middle School,High School,College,University,PHD

Expertise:
Algebra,Applied Sciences See all
Algebra,Applied Sciences,Biology,Calculus,Chemistry,Economics,English,Essay writing,Geography,Geology,Health & Medical,Physics,Science Hide all
Teaching Since: May 2017
Last Sign in: 407 Weeks Ago, 6 Days Ago
Questions Answered: 66690
Tutorials Posted: 66688

Education

  • MCS,PHD
    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

Experience

  • Professor
    Phoniex University
    Oct-2001 - Nov-2016

Category > Management Posted 09 Feb 2018 My Price 9.00

power factor problems

7.73      To correct the power factor problems of the motor in Problem 7.72, the company has decided to install capacitors as shown in Figure P7.73. Assume rms values.

a.    What capacitance must be installed to achieve a unity power factor if the line frequency is 60 Hz?

b.    Repeat part a if the power factor is to be 0.85 (lagging).

 

 

Power factor        Penalty

 

0.850 and higher   None 0.8 to 0.849       1%

0.75 to 0.799        2%

0.7 to 0.749          3%

 

Courtesy of Detroit Edison.

 

 

The wye-wye circuit shown in Figure P7.72 is representative of a three-phase motor load. Assume rms values.

a.    Find the total power supplied to the motor.

b.    Find the power converted to mechanical energy if the motor is 80 percent efficient.

c.    Find the power factor.

 

 

 

 

 

Answers

Maurice Tutor
(5)
Status NEW Posted 09 Feb 2018 11:02 PM My Price 9.00

Hel-----------lo -----------Sir-----------/Ma-----------dam-----------Tha-----------nk -----------You----------- fo-----------r u-----------sin-----------g o-----------ur -----------web-----------sit-----------e a-----------nd -----------acq-----------uis-----------iti-----------on -----------of -----------my -----------pos-----------ted----------- so-----------lut-----------ion-----------.Pl-----------eas-----------e p-----------ing----------- me----------- on-----------cha-----------t I----------- am----------- on-----------lin-----------e o-----------r i-----------nbo-----------x m-----------e a----------- me-----------ssa-----------ge -----------I w-----------ill----------- be-----------

Not Rated(0)