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

Determine the number of bits of a natural binary encoder, Determine the num...

Determine the number of bits of a natural binary encoder that works with the quantizer: a) If the extreme levels are ±3.1 V, with a step size of 0.2 V. (b) If there are 128 q

Explain piezoelectricity, Explain piezoelectricity. Piezoelectricity: ...

Explain piezoelectricity. Piezoelectricity: It gives us a means of converting electrical energy to mechanical energy and vice versa. While an electric field is applied to

Potentiometers , Which potentiometer do I need to control; 6v 2amps dc?

Which potentiometer do I need to control; 6v 2amps dc?

Blind equalization using constant modulus approach, please i need to prepar...

please i need to prepare thesis proposal based on the title above. analysis of recently exixting algorithm and propose an improved one. UGENTLY!!

Determine the electric force on each charge, Q. Point charges, each of √4πε...

Q. Point charges, each of √4πε 0 C, are located at the vertices of an equilateral triangle of side a. Determine the electric force on each charge.

add instruction, ADD Instruction This  instruction use to add  content...

ADD Instruction This  instruction use to add  contents of any  register or memory  location with the  contents of accumulator. There are two  formats for ADD  instruction to ad

Elucidate the nature of signals produced, Q. Elucidate the nature of signal...

Q. Elucidate the nature of signals produced on subscriber's loop by a pulse dialer and a touch tone dialer.  Ans: DTMF is a simple two-of -eight encoding scheme where every

Compute the theoretical and practical frequency ranges, Q. For an RG-290/U ...

Q. For an RG-290/U aluminum rectangular wave - guide, a = 58.42 cm and b = 29.21 cm. Compute the theoretical and practical frequency ranges of operation for the guide.

For carry flag , For carry flag  CC ( Call on Carry ) and CNC ( Call ...

For carry flag  CC ( Call on Carry ) and CNC ( Call  on No Carry ) Instructions CC Calls  the subroutine form  the specified memory  location if carry flag  is set (CY=

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