What are the disadvantages of low power factor

Assignment Help Electrical Engineering
Reference no: EM131134145

1. (a). what is the need for power factor correction?

(b). A 3phase synchronous. Motor is connected in parallel with a load of 500 KW, 0.8p.f lagging and its excitation is adjusted until it raises the total P.F to 0.9 lagging. If the mechanical load on the motor including loss takes 125KW, calculate the KVA input to the motor. Draw pharos diagram for condition.

2. i) What are the disadvantages of low power factor? How to avoid it?

ii) What are the measures relates to power quality?

Reference no: EM131134145

Questions Cloud

Value attribute for consumer customers : Which of the following is NOT associated with consumer customers' perception of value? In a “make or buy” decision, businesses must recognize that: Which of the following is not a value attribute for consumer customers?
The business value of security and control : Describe the relationship between security and control and recent U.S. government regulatory requirements and computer forensics.
Compute the elongation of each rod : compute the elongation of each rod and the horizontal and vertical displacements of p...
Sophisticated enough to sustain a detailed analysis : Choose one of the poems from your readings in Chapter 33: "Poetry for Further Reading" and compose a written explication of that poem. The poem you select must be sophisticated enough to sustain a detailed analysis. You may choose a poem by the s..
What are the disadvantages of low power factor : A 3phase synchronous. Motor is connected in parallel with a load of 500 KW, 0.8p.f lagging and its excitation is adjusted until it raises the total P.F to 0.9 lagging. If the mechanical load on the motor including loss takes 125KW, calculate the K..
Way employees contribute to net income : Which of the following is probably not a way employees contribute to net income? A commonly used measure of facility productivity used by retailers is. Which of the following statements does not describe “Value?”
What possible ethical rule has been violated : Why is this an ethical dilemma? What possible ethical rule(s) has been violated? How you would approach the situation? What steps or actions would you or should you take?
What is the voltage across each branch : Verify that the source current equals the sum of the branch currents.
Design an application for the homestead furniture store : Design an application for the Homestead Furniture Store that gets sales transaction data, including an account number, customer name, and purchase price.

Reviews

Write a Review

Electrical Engineering Questions & Answers

  Determine circuit power factor and draw impedence phasor

A coil is placed in series with a resistance of 30 ohms. When the combination is connected to a 220 V, 60 Hz source, the current is 4.2 A and the power drawn by the circuit is 670 W.

  Calculate the wind force on the turbine for a 5 mph wind

a) Calculate the wind force on the turbine for a 5 mph wind. b) What is the force if the wind speed is tripled? c) Calculate the torque on the tower for the cases of the 5 and 15 mph wind velocities

  Show electric potential at is given by v in circular ring

A circular ring of charge of radius a lies in the x-y plane and iscentered at the origin. If the ring is in air and carries a uniform density ρl show that the electric potential at(0,0,z) is given by V = ρl a / [2ε0(a2+z2)1/2 ]

  Determine what is the work function in the ge

Consider putting down a metal electrode with a 4.50 eV work function on a piece of Ge which has an electron affinity of 4.00 eV, an intrinsic carrier concentration at 300K of 2.5 x 1013/cm3, and that is doped with 1.0 x 1016 donors/cm3.

  Given circuit description such that count number of cars

Given a circuit description such that count the number of cars in the traffic junction.the traffic light red signal should always be on,but get off when green light is on.Green signal is on for time equal to the number of cars.For example,if 3 is ..

  Determine how to do find vt and rt across terminals

If I put a short in across the terminals a and b, does that mean the Isc = 0 since the capacitor would eventually charge and thus become an open circuit If so, how to do you find Vt and Rt

  Explain the block diagram and what each block does

Design methodology (show calculations and provide rationale for design choices; remember that your choices must take into consideration commonly available parts). Final schematic in Multisim Components/Parts list Simulation results for your design Te..

  Calculate antenna radiation resistance and ohmic resistance

Assume a Hertzian dipole antenna model. (a) Calculate the antenna radiation resistance and Ohmic resistance, (b) Calculate the radiation efficiency of this antenna, (c) Calculate the input impedance, (d) calculate the antenna gain

  Find the power factor of kva load for lagging power factor

A 65 kVA load with a lagging power factor is combined with a 25 kVA synchronous motor load which operates at pf = 0.60 leading. Find the power factor of the 65 kVA load, if the overall power factor is 0.85 lagging.

  Design a four-bit shift register using a barrel shifter

A four-bit barrel shifter is a combinational circuit with four data inputs, two control inputs, and two data outputs. It allows the data inputs to be shifted onto the outputs by 0, 1, 2, or 3 bit positions, with the rightmost bits wrapping around ..

  A charge q is placed between two grounded infinite parallel

A charge q is placed between two grounded infinite parallel conducting planes which are a distance "d" apart (see figure attached). Let ε_r = 1.

  Write a program that calculates a customers monthly bill

An Internet service provider has three different subscription packages for its customers:  Package A: For $9.95 per month 10 hours of access are provided. Additional hours are $2.00 per hour.  Package B: For $14.95 per month 20 hours of access are pr..

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