Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Mechanical Engineering Expert

1)(a) Determine speed controls of various system of motors which is utilized in the electric train?

(b) describe co-efficient of adhesion and describe factors on which it depends.

2)(a) Describe different arrangement of current collection which is utilized in the electric traction.

(b) Describe current trends in electric traction in detail.

3) Two stations X and Y are 12Km apart and average speed of train is 60Kmph. Acceleration is 5Kmph, retardation in coasting is 0.3kmph and braking is 5Kmph respectively. Let quadrilateral approximation of speed, time curve, find out the duration of acceleration, coasting and braking periods and distance covered in these span of time.

4) prepare down the principle of regenerative braking. Describe regenerative braking regarding:

a) DC motors,

b) Induction motors.

5)(a)What are different methods of speed control of series motors and describe their scope of speed range.

(b) Describe advantage and disadvantage of the induction motor for the traction duties?

6)(a) prepare down the merits of series parallel control of motors over the rheostatic method of starting and speed control?

(b) What do you mean by multiple unit control and for what application you will propose this?

Mechanical Engineering, Engineering

  • Category:- Mechanical Engineering
  • Reference No.:- M911476

Have any Question? 


Related Questions in Mechanical Engineering

Optional extra credit problemyou have been given a map

OPTIONAL EXTRA CREDIT PROBLEM You have been given a map which references a monument having coordinates North 2403306.986, East 5873350.973, expressed in US Survey Feet. A statement on the map states that the area mapped ...

Derive a formula for the minimum energy in the

Derive a formula for the minimum energy in the two-dimensional Using model, if the interaction energy between each spin and each of its eight nearest neighbors is -D. Assume that the model consists of a rectangular array ...

A series of calibration tests is conducted on a pressure

A series of calibration tests is conducted on a pressure gage. At a known pressure of 1000 psia it is found that 30 percent of the readings are within 1 psia of the true value. At a known pressure of 500 psia, 40 percent ...

1 an ion with the configuration f 2 enters an environment

1. An ion with the configuration f 2 enters an environment of octahedral symmetry. What terms arise in the free ion, and with which terms do they correlate in the complex? 2. In the strong field case, the configuration d ...

Rework problem if the exit velocity profile is given bywhen

Rework Problem. if the exit velocity profile is given by when y is measure vertically from the center line of the water tunnel. Problem A two-dimensional object is placed in a 4-ft-wide water tunnel as shown. The upstrea ...

Consider the torsion of a thin-walled tube determine an

Consider the torsion of a thin-walled tube. Determine an approximate expression for the torque if the shear stress must be less than a given working stress τw. Express this result in terms of the tube's mean radius R and ...

1 discuss the four best-known practical methods of

1. Discuss the four best-known practical methods of generating residual magnetism. 2. Discuss the advantages of a matrix partition to represent the transient state of an aggregation of SEIGs. 3. Using the state variable ...

If in the system for problem the total drag on the object

If, in the system for Problem, the total drag on the object is measured to be 800 N/m of length normal to the direction of flow, and frictional forces at the walls are neglected, find the pressure difference between inle ...

It has been observed that the most effective way to crush

It has been observed that the most effective way to crush an empty aluminum beverage can is to apply an eccentric compressive load. Use buckling theory to explain this phenomenon. The can wall thickness is 80 μm, and the ...

Assignmentfor this homework you will be creating scripts in

ASSIGNMENT For this homework you will be creating scripts in SciLab. You will turn in electronically, each of the scripts requested below. This is not a group project, so do your own work. Contact me if you have any ques ...

  • 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