Determine maximum neutral current-power factor, Electrical Engineering

Assignment Help:

1.)  A three phase, D0 HP, 1765 rpm, BA0 V induction motor operating at three quarter load has an efficiency of 91% and a power factor of 87%. Determine active power, apparent power, reactive power and line current.

2.) Determine the rated primary and secondary currents and the approximate short circuit currents for a three phase A3,000-B80 V, 250 kVA transformer with a D% impedance. What is the ohmic impedance on the secondary side of the transformer?

3.) A 240 V center-tap transformer serves the following loads:

a. 2 - A500 W at 240V
b. 1 - C200 W at 120 V
c. 1 - D000 W at 240 V
d. 4 - 1500 W at 120
What are the two line currents and neutral current when balanced as closely as possible? What is the maximum neutral current?

4.) A three phase 480 V source supplies a B00 kW load and B00 kVAR capacitor at unity power factor. What is the power factor of the load without the capacitor?

 


Related Discussions:- Determine maximum neutral current-power factor

Determine the maximum power, Determine the maximum power: 1 For the c...

Determine the maximum power: 1 For the circuit shown below, what value of RL will result in maximum power transfer? Determine the maximum power dissipated in RL. You

What are the various tones used in stronger telephony, Q. What are the vari...

Q. What are the various tones used in stronger telephony? When called party line is obtained, exchange control equipment transmits out the ringing current to telephone set of t

Explain overhead lines and transformers, Explain Overhead Lines and Transfo...

Explain Overhead Lines and Transformers? Overhead lines absorb reactive power when fully loaded. A line with a current I A, a line reactance of X L ?/phase absorbs I 2 X L V

Working of r-2r ladder converter, R-2R LADDER CONVERTER Figure shows a ...

R-2R LADDER CONVERTER Figure shows a 4-bit R-2R ladderD/Aconverter,which contains a reference voltage source, a set of four switches, two resistors per bit, and an op amp. The

ADC and DAC design, I''m trying to design ADC using MAX1198 and DAC using I...

I''m trying to design ADC using MAX1198 and DAC using IDAC in Multisim 12 but none of them are working. I need some help in this regard

What do you mean by load factor, Q. What do you mean by Load factor? Th...

Q. What do you mean by Load factor? The two components of electric service are demand and energy. Demand is the maximum level of real power which the electric utility must supp

Find the inductor current and voltage, Q. The energy stored in a 2-µH induc...

Q. The energy stored in a 2-µH inductor is given by wL(t) = 9e-2t µJ for t ≥ 0. Find the inductor current and voltage at t = 1 s.

Determine the highest value of voltage regulation, Q. A 25-kVA, 2200:220-V,...

Q. A 25-kVA, 2200:220-V, 60-Hz, single-phase transformer has an equivalent series impedance of 3.5 + j4.0  referred to the primary high- voltage side. (a) Determine the highest

Explain the importance of planning in an organisation, Question 1: Plan...

Question 1: Planning is one of the primary functions of management. (a) Explain the importance of planning in an organisation. (b) How can managers develop an effective a

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