Phasor diagram, Electrical Engineering

Assignment Help:

The aim of this question is to help you become familiar with phasor diagrams, and in particular to see how the diagram changes when one of the system parameters (in this case resistance) varies. The diagram (right) represents the approximate equivalent circuit of an induction motor (copper and mechanical losses are ignored, and the permeability of magnetic core is considered infinite), supplied from a constant- voltage source V of angular frequency ω. The power in the fictitious resistance R represents the power converted from electrical to mechanical form, and the value of R is a function of the speed of the motor. Sketch phasor diagrams showing the current and the voltages across R and L when a) R = 0; b) R = 0.1ωL; c) R = ωL; d) R = 10ωL. (Use the same scale for each diagram; calculate angles; and use a protractor or drawing package to produce a set of decent diagrams so that they can be compared easily.

1. You may find it useful to recall the geometrical property of a semi-circle shown in the sketch.

2. Find the value of R (in terms of ωL) that yields maximum power, and the corresponding power.

728_Phasor Diagrams.png


Related Discussions:- Phasor diagram

Design of matching networks for amplifiers, Design a low noise amplifier us...

Design a low noise amplifier using an Infineon RF transistor BFP640. The amplifier is to be used to amplify the L2 GPS signal and so the centre frequency is 1227MHz and bandwidth 4

Chemical vapour deposition, Explain chemical vapour deposition method for t...

Explain chemical vapour deposition method for the preparation of nanomaterial and its properties

Determine the current gain, A JFET for which V A = 80 V, V P = 4 V, and I...

A JFET for which V A = 80 V, V P = 4 V, and I DSS = 10 mA has a quiescent drain current of 3 mA when used as a common-source amplifier for which R D = R SS = 1k and R L = 3k

Buck boost converter - power supplies , Buck Boost Converter The outpu...

Buck Boost Converter The output  of buck boost  regulator may be  less than  or greater than the  input  voltage. Since  the polarity of output  voltage  is opposite  to that

transmisson medium, Can I find out the salution of electrods Transmissio...

Can I find out the salution of electrods Transmission medium light sound uncoupling magnet for high dc cycle.

Electric Optic Device, Transmission Through a LiNb0 3 Plate Examine the tr...

Transmission Through a LiNb0 3 Plate Examine the transmission of an unpolarized He-Ne laser beam (?o= 633 nm) normally incident on a LiNb0 3 plate (ne = 2.29, no = 2.20) of thickn

Consumer interaction and service standards, Consumer Interaction and Servic...

Consumer Interaction and Service Standards These KPIs deal along with the customer, internal business procedures and change management. These are significant to give the desir

Alternate representation for complex poles, Alternate Representation for Co...

Alternate Representation for Complex Poles Complex poles can be combined to yield a quadratic term in the partial fraction expansion. The representation may best be illustrated

Name the materials used in case of fuses, Name the materials used in case...

Name the materials used in case of Fuses . Also give reasons. Fuses : For rewirable fuses, copper-tin and lead-tin alloy is used. For HRC and cartridge fuses silve

Working of bootstrap sweep circuit, analysis and detail working of bootstra...

analysis and detail working of bootstrap sweep circuit

Write Your Message!

Captcha
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