A 12kVA, 300V/150V transformer has been tested to determine its equivalent circuit. The open circuit test data when high voltage side is open: loc=1.8A, Poc=100W. The short circuit test data when low voltage side is short circuited: Vsc=40V, Psc=115W. Use approximate equivalent circuit. Calculate the full load output power at 0.85 pf leading.

A 12kVA, 300V/150V transformer has been tested to determine its equivalent circuit. The open circuit test data when high voltage side is open: loc=1.8A, Poc=100W. The short circuit test data when low voltage side is short circuited: Vsc=40V, Psc=115W. Use approximate equivalent circuit. Calculate the full load output power at 0.85 pf leading.

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

See similar textbooks

Similar questions

Create a short essay based on your own understanding and opinion about the question, “How does a dc generator work?”. Minimum of 150 words.
6 What is the SI unit of a. magnetic flux b. magnetic flux density c. magnetic field intensity d. magnetomotive force
Two thin parallel wires carry current in the same direction. The force exerted by one wire on another, Please choose one: a.It is perpendicular to the wires and attractive. b.It is perpendicular to the wires and repulsive. C.It is parallel to the wires. D.It is zero.
Electrical Engineering Dep. Electrical Machine Lab. NO LOAD CHARACTERISTIC OF DC MOTORS DISCUSSION 1- Comment on the curves obtained . 2- What are the types of the losses in the DC machines?
3Q) Analyze the relationship between flux produced by the moving coil and torque in a PMMC instrument.
A. The brushes used in a DC generator a) ride against the commutator segments. b) are made from material softer than the commutator segments. c) are generally marked Al and A2 d) all of the above B. A magneto is a DC generator that uses for its pole pieces. a) electromagnets b) permanent magnets c) either "a" or "b" d) neither "a" nor "b"
In this Exercise 6 we will explore laws critical to the study of electromagnetism. We will be using Simulation 3 (below) to explore how a moving magnet produces current in a nearby coil of wire. a. Magnetic field strength decreases as you get farther from the poles of the magnet. Does the flux through the face of the coil change as you move the magnet? Explain your answer. b. Why does the meter needle deflect? Is the deflection in accordance with Lenz’s Law? Justify your answer in terms of Lenz’s law and your above answers.
4- Which of these are types of normal stresses? a. Tensile and compressive stresses b. Tensile and thermal stresses c. Shear and bending 5- If a material has identical properties in all directions, it is called a. Elastic b. Plastic c. Isotropic d. Homogeneous 6- When a wire is stretched to double in length, the longitudinal strain produced in it is a. 0.5 b. 1.0 c. 1.5 d. 2.0
The figure of merit which describes the overall behavior of the wire under stress isdetermined from?Select onea elastic modulus b gauge resistancegauge factorastic factor
Mechanical torque in a rotating body is the product of a. mass and acceleration/2. b. Inertia and angular acceleration c. force and velocity d. mass and acceleration
Components of mechanical translational system are damper, torsional spring and mass Select one: True False
1. Based on the exercise, what do you understood about residual magnetism?