Find the maximum kva rating as an auto- transformer, Electrical Engineering

Assignment Help:

Q. A 5-kVA, 480:120-V, two-winding, 60-Hz, single-phase transformer has an efficiency of 95% while delivering rated load at rated voltage and 0.8 power factor lagging. This transformer is to be connected as an autotransformer to step down a 600-V source to 480 V.

(a) Draw a schematic connection diagram as an autotransformer.

(b) Find the maximum kVA rating as an auto- transformer.

(c) Compute the efficiency as an autotrans- former delivering its rated kVA at 480 V and 0.8 power factor lagging.


Related Discussions:- Find the maximum kva rating as an auto- transformer

Explain about darlington amplifier, Q Explain about 'Darlington Amplifier'?...

Q Explain about 'Darlington Amplifier'? DARLINGTON AMPLIFIER : A CC stage followed by another CC stage has an input resistance of about (b + 1) 2 times the emitter resistance

Engineer, explain the alphanumeric codes

explain the alphanumeric codes

Draw and explain a monostable multivibrator, Q. Draw and explain a monostab...

Q. Draw and explain a monostable multivibrator ? The monostable configuration consists of two amplifier stages interconnected in such a manner as to possess one stable state. T

Illustrate nodal-voltage method, Q. Illustrate Nodal-Voltage Method ? A...

Q. Illustrate Nodal-Voltage Method ? A set of node-voltage variables that implicitly satisfy the KVL equations is selected in order to formulate circuit equations in this nodal

Optoelectronic, Need a project in Optoelectronic with simulation in Optispi...

Need a project in Optoelectronic with simulation in Optispice or Matlab.with complete report and presentation. ANy ideat about project and how much does it cost.

Compute the maximum internal torque, For the motor speci?ed in figure,  com...

For the motor speci?ed in figure,  compute the following: (a) The load component I' 2 of the stator current, the internal torque T, and the internal power P m for a slip of 0.

Explain temperature dependency in conductors, Explain temperature dependenc...

Explain temperature dependence of electrical conductivity and resistivity in conductors. When the temperature is increased, there is a greater thermal motion in atoms that redu

Determine the armature e.m.f. and load angle of generator, A 3-phase, wye-c...

A 3-phase, wye-connected, 11 kV, 137.5 MVA turbo-alternator of 0.8 power factor lagging has a synchronous reactance XS = 1.4 Ω. Assume the machine to be ideal for convenience of an

What do you mean by frequency response, Q. What do you mean by Frequency re...

Q. What do you mean by Frequency response? Now let us examine the response of a circuit to a sinusoidal source, called an oscillator, whose frequency can be varied.Known as the

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