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

Global positioning system, Global Positioning System: For power utilit...

Global Positioning System: For power utilities, the basic objective of using Global Positioning System (GPS) and GIS should be to: enhance the efficiency of transmissio

Usage of fixed bias, Usage: Because of the above inherent drawbacks, f...

Usage: Because of the above inherent drawbacks, fixed bias is seldom used in linear circuits (that is those circuits which use the transistor like a current source). Instead,

Explain the types of power plants, Explain in detail the various energy res...

Explain in detail the various energy resources and their availability. Explain the following: (a) Types of power plants (b) Selection of power Plants

Illustrate the concept of part families, (a) Illustrate the concept of Part...

(a) Illustrate the concept of Part Families ? (b) Explain briefly the general process to solve the problem of grouping the parts into families.

Dc generator, Why armature core in a DC machine is constructed with laminat...

Why armature core in a DC machine is constructed with laminated steel instead of solid steel sheets

Calculate the voltage regulation, The per-phase synchronous reactance of a ...

The per-phase synchronous reactance of a three-phase, wye-connected, 2.5-MVA, 6.6-kV, 60-Hz turboalternator is 10. Neglect the armature resistance and saturation. Calculate the vo

Calculate the ef?ciency of the induction generator, A three-phase, four-pol...

A three-phase, four-pole, 220-V, 60-Hz induction machine with a per-phase resistance of 0.5  is operating at rated voltage as a generator at a slip of -0.04, delivering 12 A of li

ECE, a problem solving problem

a problem solving problem

Calculate the value in ohms of the rotor resistance, The synchronous speed ...

The synchronous speed of a wound-rotor induction motor is 900 r/min. Under a blocked-rotor condition, the input power to the motor is 45 kW at 193.6 A. The stator resistance per ph

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