Ask Question, Ask an Expert


Ask Electrical & Electronics Expert

1) describe how transformers are categorized according to their construction?

2) Describe the material used for core construction.

3) How does change in frequency affect operation of a given Transformer?

4) Determine the angle by which no-load current will lag ideal applied voltage?

5) prepare down the arrangement of stepped core arrangement in a transformer.

6) describe the function of transformer oil in a transformer in detail.

7) prepare down the difference between power transformers and distribution transformers.

8) prepare down the properties of an ideal transformer.

9) prepare down the condition to be satisfied for parallel operation of transformer.

10) What are various losses occurring in a transformer?

11)(a) Describe the principle and operation of autotransformer in detail.

(b) Draw and describe the no load phasor diagram of a single phase transformer.

12)(a) Deduce the emf equation of single phase transformer.

(b) A 120kVA, 6000/400V, Y/Y, 3-phase, 50Hz transformer has iron loss of 1800W. Maximum efficiency occurs at ¾ full loads. Determine efficiency of transformer at

(i) Full load and 0.8 pf

(ii) The maximum efficiency at unity pf.

Electrical & Electronics, Engineering

  • Category:- Electrical & Electronics
  • Reference No.:- M911366

Have any Question? 

Related Questions in Electrical & Electronics

Figure 319 in the text shows that des creates 16 different

Figure 31.9 in the text shows that DES creates 16 different 48-bit keys, one for each round. Why do we need 16 different keys? Why can't we use the same key in each round?

Let xt be a signal whose fourier transform xomega is

Let x(t) be a signal whose Fourier transform X(ω) is nonzero only over 3 ≤ |ω| ≤ 9. Further, only frequencies 5 ≤ |ω| ≤ 7 contain useful information (the other frequencies can be considered to contain noise or different ...

1 what are the names of the protocols discussed in this

1. What are the names of the protocols, discussed in this chapter, that provide security for e-mail? 2. How does PGP create a set of security parameters? 3. What is the purpose of the Handshake Protocol in SSL? 4. What i ...

1 a 15 v aa battery that costs 1 is rated at 18 ah what is

1. A 1.5 V AA battery that costs $1 is rated at 1.8 Ah. What is its cost per kWh? 2. Suppose a 12-V battery bank rated at 200 Ah under standard conditions needs to deliver 600 Wh over a 12-h period each day. If they oper ...

1 fluid flows between two parallel plates a distance h

1. Fluid flows between two parallel plates, a distance h apart. The upper plate moves at velocity, v 0 ; the lower plate is stationary. For what value of pressure gradient will the shear stress at the lower wall be zero? ...

1 what is meant by the dominant mode why are waveguides

1. What is meant by the dominant mode? Why are waveguides designed so that they propagate only the dominant mode? 2. Why is the dimension b of a rectangular waveguide generally chosen to be less than or equal to one-half ...

An ltic system impulse response is given by ht ut-ut - 1a

An LTIC system impulse response is given by h(t) = u(t)-u(t - 1). a. Determine the transfer function H(s). Using H(s), determine and plot the magnitude response |H(jω)|. Which type of filter most accurately describes the ...

Two ships are traveling parallel to each other and are

Two ships are traveling parallel to each other and are connected by flexible hoses. Fluid is transferred from one ship to the other for processing and then returned. If the fluid is flowing at 100 kg/s, and at a given in ...

Uing the laws for the addition of vectors and equation

Using the laws for the addition of vectors and equation (), show that in the absence of gravity, (a) The fluid acceleration, pressure force, and viscous force all lie in the same plane; (b) In the absence of viscous forc ...

Term project - the step response of rlc circuitsthe team

Term Project - The Step Response of RLC Circuits The team project pertains to Chapter 9 in the text book. You should submit a single report and Multisim/ LTSpice file. The report should be submitted as a Word document an ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro

Describe what you learned about the impact of economic

Describe what you learned about the impact of economic, social, and demographic trends affecting the US labor environmen