Calculate power factor of the motor at no load

Assignment Help Electrical Engineering
Reference no: EM131202873

Two-wattmeter method is used to measure the power taken by a 3-phase induction motor on no load. The wattmeter readings are 375w and -50w.

Calculate;
i)power factor of the motor at no load

ii)phase difference of voltage and current in two wattmeters.

Reference no: EM131202873

Questions Cloud

Determine the reading of the two wattmeters : if the power factor of the motor be changed to 0.866 lagging. - Determine the reading of the two wattmeters, the total power remaining unchanged.
Evaluate strategies for addressing these challenges : Using scholarly sources such as your textbook and professional journal articles that you find in the University Library, research the two problems mentioned by the manager. What does the field of I/O say about these types of problems or issues? Wh..
What is the rms value of the voltage : Some AC voltmeters provide dBm readings which are based on a 600 Ω reference resistance in addition to the l mW reference power. If an AC voltmeter reads 16 on its dBm scale, what is the rms value of the voltage that corresponds to this reading?
What is burnout and what factors contribute to an employee : MGMT708 T0216 ASSESSMENT GUIDELINES - What is burnout and what factors contribute to an employee's perception of burnout in the workplace (e.g., personal characteristics, characteristics of their job, and the work environment)?
Calculate power factor of the motor at no load : Calculate power factor of the motor at no load. - Calculate phase difference of voltage and current in two wattmeters.
Discuss the main tenets of each theory : Create a 2- to 3-page brochure including graphics, on traditional psychodynamic theories. Describe personality. Discuss the main tenets of each theory, how they apply to personality and behavior, and the strengths and limitations of each theory.
Find the power absorbed by the machine : Two-wattmeter method is used to measure the power absorbed by a 3-phase induction motor.- Find the power absorbed by the machine. - Find load power factor.
Maintenance department and personnel department : Tommy and Baxter company has two service departments, Maintenance Department and Personnel Department, and two producing departments, A and B. The Maintenance Department costs of $240,000 are allocated on the basis of standard service hours used. Usi..
Explains why people commit domestic violence : In a 3-5 page paper, select and describe one of the theories that you feel best explains why people commit domestic violence. Strongly support the theory with detailed information and at least four examples

Reviews

Write a Review

Electrical Engineering Questions & Answers

  Determine the approximate value of the input impedance

A parallel RLC network is constructed with a 5 mH inductor, and the remaining component values are chosen such that Q0 = 6.5 and ω0 = 1000 rad/s. Determine the approximate value of the input impedance magnitude for operation

  Surface of the ceramic film at this time

At furnace start-up the wall is at an initial temperature of Tj = 300 K, and combustion gases at T8 = 1300 K enter the furnace, providing a convection coefficient of h = 25 W/m2 · K at the ceramic film. Assuming the film to have negligible thermal..

  Where in the transfer equation is the 2nd order polynomial

The transfer equation is V_out/V_in. if you factor the second order polynomial what are the two first order polynomials. How do these compare with the first order filter. Has the -3db changed.

  Determine the capacitance values for each case

Simulate the second-order RLC circuit using simpower Matlab simulink.This circuit has DC source voltage Vs=220V, Inductance L=2mH and Resistance R=160 ohms.Determine the capacitance values for each case

  Calculate the output voltages if port 1 is fed

Assume that the outputs are matched.

  Sketch fourier transform for the singly-balanced mixer

Let the input to a singly-balanced mixer, f(t), be given by V0 Sin (2 pi fs t). The local oscillator input p(t) is a square wave, alternating between 0 and +1 volt. The freqency of the square wave is 10 MHz, while for the input, fs is 100 KHz.

  Write corresponding digital signal using 4-bit represetation

An analog voice signal that can vary over the range 0.50 mA is digitized by sampling it at 8 kHz. The first four sample values are 10, 21, 36, and 16 mA. Write the corresponding digital signal (a string of 1 and 0 bits) by using a 4-bit representa..

  Classical inelastic collision of the form a + b?c+ d

Show that the law of conservation of classical momentum is invariant under the Galiliean transformation if and only if total mass is conserved

  Determine the following by sloving laplace equations

determine the following by sloving laplace equations: a) the potential and electric field distribution in the dilectric slab. b) the potential and electric feild distrivution in the air space between the dilectric slab and the upper plate and c) t..

  Plot the simulink rectifier input voltage and load voltage

Find the load dc current and find the rms of the ac current input to the rectifier - Plot the Simulink rectifier input voltage and load voltage on the same plot

  The incoming solar radiation at a place on the surface

The incoming solar radiation at a place on the surface of the earth is 1.2kW/m2 . the amplitude of electric field corresponding to this included power is nearly equal to

  How this frequency will change if the capacitance is doubled

The resonance frequency of an L-C circuit depends on the inductance L [volt • sec/amp) and the capacitance C [amp • sec/volt]. By using dimensional considerations, find how this frequency will change if the capacitance is doubled.

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