Determine efficiency on diffrent load cycle, Electrical Engineering

Assignment Help:

Q. A 75-kVA transformer has an iron loss of 1 kW and a full-load copper loss of 1 kW. If the transformer operates on the following load cycle, determine the all-day efficiency:

8 hours full load at unity power factor

8 hours no load

8 hours one-half full load at unity power factor


Related Discussions:- Determine efficiency on diffrent load cycle

Illustrate sources and loads, Q. Illustrate Sources and Loads? A source...

Q. Illustrate Sources and Loads? A source-load combination is represented in Figure. A node is a point at which two or more components or devices are connected together. A part

Compute the theoretical and practical frequency, Q. An RG-139/U rectangular...

Q. An RG-139/U rectangular waveguide is given to have dimensions a = 0.8636 mm and b = 0.4318 mm. Compute the theoretical and practical frequency ranges of operation for the guide.

Self-excited generator, The magnetic field can be supplied by coils supplie...

The magnetic field can be supplied by coils supplied from the output of the generator itself. This is known as self-excitation.There are three ways that the field coils can be conn

Switching characteristics - power semiconductor devices, Switching charact...

Switching characteristics When  a positive signal  is applied GTO starts  conducting before  initiation of  conduction anode  current  is zero  and anode to cathode voltage Va

Explain about simplex communication, Q. Explain about Simplex communication...

Q. Explain about Simplex communication? Simplex communication: Microphone and the earphone are transducer elements of the telephone communication system. Microphone converts

Electric machinery fundamentals, Ask qu1. If the resistor Radj is adjusted ...

Ask qu1. If the resistor Radj is adjusted to 175O what is the rotational speed of the motor at no-load conditions? 2. Assuming no armature reaction, what is the speed of the motor

Calculate the new rotor current frequency, Induction motors are often brake...

Induction motors are often braked rapidly by a technique known as plugging, which is the reversal of the phase sequence of the voltage supplying the motor. Assume that a motor with

Connection of shunt capacitors - vantage points, Connection of Shunt Capaci...

Connection of Shunt Capacitors - Vantage Points An unloaded distribution line is capacitive in character and a fully loaded line has inherent inductive and resistive features

Develop a block diagram of an asynchronous decade counter, Q. Counting to m...

Q. Counting to moduli other than 2 n is a frequent requirement, the most common being to count through the binary-coded decimal (BCD) 8421 sequence. All that is required is a four

Illustrate transformer coupling, Q. Illustrate Transformer coupling? In...

Q. Illustrate Transformer coupling? In this method the primary winding of the transformer acts as a collector load and the secondary winding transfers the a.c. output signal di

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