Compute the efficiency of the autotransformer, Electrical Engineering

Assignment Help:

The single-phase, 50-kVA, 2400:240-V, 60-Hz, two-winding distribution transformer is connected as a step-up autotransformer, as shown in Figure. Assume that the 240-V winding is provided with sufficient insulation to withstand a voltage of 2640 V to ground.

(a) Find VH , VX, IH , IC, and IX corresponding to rated (full-load) conditions.

(b) Determine the kVA rating as an autotransformer, and find how much of that is the conducted kVA.

(c) Based on the data given for the two-winding transformer, compute the efficiency of the autotransformer corresponding to full load, 0.8 power factor lagging, and compare it with the efficiency calculated for the two-winding transforme.

2141_Compute the efficiency of the autotransformer.png


Related Discussions:- Compute the efficiency of the autotransformer

Compute the induced emf, Compute the induced emf: If a coil of 150 tur...

Compute the induced emf: If a coil of 150 turns is linked with a flux of 0.01 wb while carrying a current of 10 Amp, compute the inductance of coil. Now, if current is reverse

What are the various flags used in 8085, The various flags are: - Sign flag...

The various flags are: - Sign flag,  Axillary flag, Zero flag, Parity flag, Carry flag.

Reduce the circuit to a thevenin and a norton equivalent, Q. Reduce the cir...

Q. Reduce the circuit of Figure to a Thévenin and a Norton equivalent circuit with respect to terminals a-b.

Obtain an expression for the induced emf, Q. Consider a conducting loop of ...

Q. Consider a conducting loop of length l and width w, as shown in Figure, rotated about its axis (shown by the broken line) at a speed of ωm rad/s under the influence of a magneti

Condition return, Condition Return Similar to conditional jump and cal...

Condition Return Similar to conditional jump and call  instructions there are conditional return  instructions  also  based on various  flags.

Find the modulated signal in each case, Let the message signal m(t) = α cos...

Let the message signal m(t) = α cos (2πf m t) be used to either frequency-modulate or phase- modulate the carrier Ac cos(2πf c t). Find the modulated signal in each case.

Meters and measurements, The subject of electrical measurements is such a l...

The subject of electrical measurements is such a large one that entire books have been written on the topic. Only a few basic principles will be introduced here. Practical measurem

In-depth technical competence, Professional engineers engage with a wide ra...

Professional engineers engage with a wide range of technically advanced and complex problem. So technical know-how is necessary to solve problems, advance existing technologies and

Cpu based exchange, CPU Based Exchange:   In centralized control, all contr...

CPU Based Exchange:   In centralized control, all control equipment is replaced by a single processor which should be quite powerful. It should be capable of processing 10 to 100 c

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