Question: A separately excited dc machine is coupled to a 50 Hz, three-phase, 4-pole induction machine as shown in figure. The dc machine is energized

A separately excited dc machine is coupled to a 50 Hz, three-phase,

A separately excited dc machine is coupled to a 50 Hz, three-phase, 4-pole induction machine as shown in figure. The dc machine is energized first and the machines rotate at 1600 rpm. Subsequently the induction machine is also connected to a 50 Hz, three-phase source, the phase sequence being consistent with the direction of rotation. In steady state DC Machine Induction machine 4 pole, 50Hz 50Hz, balanced three-phase supply (A) both machines act as generator (B) the dc machine acts as a generator, and the induction machine acts as a motor (C) the dc machine acts as a motor, and the induction machine acts as a generator (D) both machines act as motors

Step by Step Solution

★★★★★

3.38 Rating (148 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

The detailed ... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Electrical Engineering Questions!

A position control system may be constructed by using an AC motor and AC components, as shown in Figure P8.13.The syncro and control transformer may be considered to be a transformer with a rotating...

The management of Pride Ltd is considering investing in the building of a medium-sized shopping mall Pride Rock Mall. They have identified a suitable site in Pride Land or an alternative site in...

If y= (cos-x), then (1-x)x-xy-2 is

Which of the following components can be used as a rotating amplifier in a control system? 1. An amplidyne 2. A separately excited DC generator 3. A self-excited DC generator 4. A synchro Select the...

1. A short shunt compound generator delivers a load current of 30A at 220V. Armature resistance 0.05 series filed resistance 0.05 , and shunt field resistance 200 . calculate the Induced EMF and the...

Math model for the dynamics of a separately excited dc motor. Motor DC motor drive including the power electronics and battery source Review the notes and chapter, and complete the missing definition...

A 130 kW, 470 V separately excited dc motor has the following rated values (nameplate): 1940 rpm (full load), 2680 rpm max (no load), 300 A (full load), 0.0.0935 2 armature resistance. The maximum...

A 220V, 750 rpm 200A separately excited dc motor has an armature & field resistances of 005 & 20 respectively. Load torque is given by the expression TL=500-02N N-m where N is the speed in...

A separately excited DC motor with an armature resistance of 0.02? works on a DC supply of 240 V. It draws an armature current of 100A and its rated speed is 1000 RPM. It is fed from a chopper...

Build a state-space model for separately excited DC generator. By applying Laplace Transformation build the block schema model of the machine.

Why is the impact of scheduling and resource allocation more significant in multi-project organizations?

Write two properties of gold which make it the most suitable metal for ornaments. (ii) Name two metals which are the best conductors of heat. (iii) Name two metals which melt when you keep them on...

A time account that may change its interest rate after it is open is known as

You are considering several cities for a vacation. In particular, you are interested in Washington DC, Philadelphia, and Boston. You will format a list of memorials in DC, add Spark lines to compare...

A thermocouple junction of area A, mass m, heat capacity C, and emissivity e is located in a furnace that normally is at TC. At these temperatures convective and conductive heat transfer to the...

If there are only a few investors who perform security analysis, and all others hold the market portfolio, M, would the CML still be the efficient CAL for investors who do not engage in security...

White Diamond Flour Company manufactures flour by a series of three processes, beginning with wheat grain being introduced in the Milling Department. From the Milling Department, the materials pass...

Mary Jones was recently appointed to the new position of director of employee assistance programs at Mega Hotels. Over the objections of her boss, the director of human resources, Mary quickly...

How AI HELP advance the analytics and insight in business?

1. We know that the most common form of color blindness results from an Xlinked recessive gene. A couple with normal color vision has a daughter with normal vision and a son who is color-blind. What...

Q. 1. "Management control is the process by which managers influence other members of the organisation to implement organisation strategies". Comment and explain the statement. Q. 2. What is a...

1) We have a separately excited dc machine with Vf=20, rf=5, lf=10, laf=1, ra=1, la=0.05, J=1, B=2. If we connect 200 volts to the armature, what is the dynamical response of the system in time domain

1. Using stress-strain diagrams, show the difference in deformation response between elastic and linear viscous (newtonian) materials. Label your diagrams 31. List three types of material objects...

Objectives: 1. Build a model and simulate the operation of a separately excited DC motor 2. Plot the terminal characteristic for a separately excited DC motor Components: Use the following components...

1.Sketch a line diagram to the types of business organisation on the basis of ownership 2.What do you understand by joint sector companies? Mention the diagrams for the formation of joint sector...