Determine phase - voltage and power, Electrical Engineering

Assignment Help:

Determine phase - voltage and power:

A balanced star connected load is supplied from a symmetrical 3-phase 440 Volt system. The current in each of the phase is 40 Amp and lags 30o behind the phase voltage. Determine

1.      phase voltage,

2.      power,

3.      reactive power drawn by a the load, and

4.      phase impedance.

Solution

For three phase star connected load voltage applied VL = 440 Volt

(a)                  V ph    = 440/ √3 = 254.03 Volt

Power current = I ph = 40 ∠ - 30o Amp = I L

 (b)       Power P =3 VL I L cos φ   = 3 × 440 × 40 cos 30o

                                                            = 26400 Watt = 26.4 kW

(c)        Reactive power drawn by the load:

Q= √3 VL I L sin φ

= √3 × 440 × 40 sin 30o

= 15242.047 Var = 15.24 kVAr

 (e)       Phase impedance Z ph = V ph I ph

               =254.03 ∠ 0o / 40 ∠- 30o = 6.35 ∠ 30o Ω


Related Discussions:- Determine phase - voltage and power

Vlsi, what is the difference between latch and flipflop

what is the difference between latch and flipflop

Simulate a diode application circuit using multisim ewb, a. Simulate a diod...

a. Simulate a diode application circuit using Multisim EWB.  Compare calculated and simulated results Each student must choose one of the following circuits from question 1 (Ref

Audio Amplifier, Hi, i''ve been given this task: You are required to desig...

Hi, i''ve been given this task: You are required to design a multi-stage audio amplifier with the following specification: Voltage gain 250 Input resistance 200 kOhm Output resi

Chemistry, what is the definition of laws of chemical combination ?

what is the definition of laws of chemical combination ?

Vector calculus in electromagnetic theory, can you please briefly explain a...

can you please briefly explain about significance of the word direction in vectors with some valid points

Electromagnetic torque , Electromagnetic torque  The torque is given...

Electromagnetic torque  The torque is given by the force on the armature winding multiplied by its radius. Force on a conductor in magnetic field B is:  F=B.I.L so, T=B

Total harmonic distortion, Q. Explain the term total harmonic distortion. D...

Q. Explain the term total harmonic distortion. Describes the functionary of a total harmonic distortion analyzer. Total Harmonic Distortion: Nonlinear behaviors of circuit el

Magnetic circuits with air gaps, The creation of a magnetic field in a ring...

The creation of a magnetic field in a ring may need to be accessed by means of an air gap. This is typically used to apply the magnetic field to a current carrying conductor to pro

high frequency electronic ballast - power supplies , Normal 0 ...

Normal 0 false false false EN-IN X-NONE X-NONE   High Frequency   Electronic Ballast

de1 board, You will design a significant project on the DE1 board. In some...

You will design a significant project on the DE1 board. In some cases you may want to use the breadboard as well - note that all of the pins at the bottom of the breadboard are lab

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