Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Electrical & Electronics Expert

1) describe how will you reverse the polarity of collected E.M.F at brushes of the dc generator?

2) Specify the different parts of the DC machine. Specify function of commutator in the dc machine?

3) describe the phenomenon behind why does the speed of motor dip upon loading?

4)  A 250V dc machine has an armature resistance of 0.25?. If full load armature current is of 40A, determine the induced E.M.F when the machine acts as the motor.

5) A single phase 3000/220V, 50Hz, core type transformer has the square cross section of 0.2 m side. If maximum flux density in core is 1.0T. Determine the number of turns in the HV and LV winding.

6) When the secondary of a transformer is open, why does a primary current flow? describe in detail.

7) Provide the expression of current when two transformers of unequal voltages are linked in parallel.

8) describe what is meant by the CT? Provide some of its applications.

9) prepare down the EMF equation of the PMBL DC motor and describe each parameter.

10)  Provide the application of tachogenerators.

Electrical & Electronics, Engineering

  • Category:- Electrical & Electronics
  • Reference No.:- M913025

Have any Question? 


Related Questions in Electrical & Electronics

1 define the parts of flow specification in intserv2

1. Define the parts of flow specification in IntServ. 2. Distinguish between guaranteed services and controlled-load services in IntServ. 3. IntServ is normally called a destination-based service. Explain the reason. 4. ...

A cryptographic hash function needs to be second preimage

A cryptographic hash function needs to be second preimage resistant, which means that given the message M and the message digest d, we should not be able to find any other message, M′, whose digest is d. In other words, ...

1 express equation in terms of the flow rate and the pipe

1. Express equation in terms of the flow rate and the pipe diameter. If the pipe diameter is doubled at constant pressure drop, what percentage change will occur in the flow rate? 2. A 40-km-long pipeline delivers petrol ...

Can sell them for on a dollarper-square meter basis to make

can sell them for on a dollarper-square meter basis to make the resulting PV system no more expensive than when using a fixed mount system. Using simple dc, STC ratings along with the following assumptions, how much can ...

1 in kademlia assume m 4 and active nodes are n4 n7 and

1. In Kademlia, assume m = 4 and active nodes are N4, N7, and N12. Where is the key k3 stored in this system? 2. In Chord, assume the size of the identifier space is 16. The active nodes are N3, N6, N8, and N12. Show the ...

1 in dictionary coding if there are 60 characters in the

1. In dictionary coding, if there are 60 characters in the message, how many times is the loop in the compression algorithm iterated? Explain. 2. In dictionary coding, should all dictionary entries that are created in th ...

A clean 15--efficient module stc 1 m2 in size has its own

A clean, 15-%-efficient module (STC), 1 m 2 in size, has its own 90% effi- cient inverter. Its NOCT is 44° C and its rated power degrades by 0.5%/° C above the 25° C STC. a. What would its STC rated power be? b. Find the ...

1 are both ah and esp needed for ip security why or why

1. Are both AH and ESP needed for IP security? Why or why not? 2. What are the two protocols discussed in this chapter that provide security at the transport layer? 3. What is IKE? What is its role in IPSec? 4. What is t ...

Consider the problem of performing system identification as

Consider the problem of performing system identification as shown previously in Figure 9.49. Suppose the system to be identified is the following IIR filter. Write a MATLAB program that uses the FDSP toolbox function f l ...

1 distinguish between centralized and decentralized p2p

1. Distinguish between centralized and decentralized P2P networks. 2. What are the advantages and disadvantages of a centralized P2P network? 3. What are the advantages and disadvantages of a decentralized P2P network? 4 ...

  • 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