Determine the equivalent impedance, Electrical Engineering

Assignment Help:

Q. A 75-kVA, 230/115-V, 60-Hz transformer was tested with these results:

• Open-circuit test: 115 V, 16.3 A, 750 W

• Short-circuit test: 9.5 V, 326 A, 1200 W

Determine:

(a) The equivalent impedance in high-voltage terms.

(b) The voltage regulation at rated load, 0.8 power factor lagging.

(c) The efficiency at rated load, 0.8 power factor lagging, and at half-load, unity power factor.

(d) The maximum efficiency and the current at which it occurs.


Related Discussions:- Determine the equivalent impedance

Electromechanical energy conversion, derived expression for reluctant torqu...

derived expression for reluctant torque in rotating electrical machine

Calculate the total charge on the integrator, Q. Consider the dual-slope A/...

Q. Consider the dual-slope A/D converter of Figure. (a) Calculate the total charge on the integrator due to the input voltage Vin during the signal integration time T. (b) Ob

Determine the peak frequency deviation, If an FM signal is given by s FM (t...

If an FM signal is given by s FM (t) = 100 cos [2πf c t +100 m(τ ) dτ ] and m(t) is given in figure, sketch the instantaneous frequency as a function of time and determine the pea

Explain the discovery of neutron. mention its properties, Explain the disco...

Explain the discovery of neutron. Mention its properties. Discovery of Neutron: The existence of neutron was first predicted by Rutherford in the year 1920. But it was discov

Breifly explain abrasive jet machining, Breifly explain abrasive jet machin...

Breifly explain abrasive jet machining in Briefly explain the following key terms in electrochemical machining (a) Electrolytes (b) ECM tooling techniques with suitable ex

find the maximum power transferred and input resistance, Given: R 1 = R 3...

Given: R 1 = R 3 = 1 k_, R 2 = 100 k_ and k = 0.1 A/V, and step-up transformer turns ratio is 10. a) Find the value of the load resistor RL that would maximize the power

Properties and application of permanent magnetic materials, Give the proper...

Give the properties and application of permanent magnetic materials. Permanent magnetic materials: Properties: Permanent magnetic materials have a huge area of hyster

Electrostatic sprayer, I would like to know the materials needed for electr...

I would like to know the materials needed for electrostatic sprayer.

generator, diagram of static generator

diagram of static generators

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