Question: A single-phase full converter is used to control the speed of a 5 hp,110V,1200 rpm, separately excited dc motor. The converter is connected to

A single-phase full converter is used to control the speed of a 5 hp,110V,1200 rpm, separately excited dc

A single-phase full converter is used to control the speed of a 5 hp,110V,1200 rpm, separately excited dc motor. The converter is connected to a single-phase 120V,60 Hz supply. The armature resistance is R=0.4 ohms and armature circuit inductance La=5mH (Assume that the armature current is ripple free). The motor voltage constant is Ko=0.09 V/rpm. 1. Rectifier (or motoring) operation. The dc machine operates as a motor runs at 1000 rpm and carries an armature current of 30 amperes. Assume that motor current is ripple-free. (a) Determine the firing angle a. (b) Determine the power to the motor. (c) c) Determine the supply power factor 2. Inverter operation (regenerative action). The polarity of the motor back emf Ea is reversed ,say by reversing the field excitation. (a) Determine the firing angle to keep the motor current at 30 amperes when the speed is 1000 rpm. (b) Determine the power fed back to the supply at 1000 rpm.

Step by Step Solution

★★★★★

3.47 Rating (167 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

To solve the given problems we will use the following formulas and equations 1 Rectifier Operation a ... 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 Accounting Questions!

There are n chocolates and the weight of the chocolates is given as an array of integers weights/n where weights] denote the weight of the chocolate. Every day, one can pick one chocolate, eat half...

A 20N force acts perpendicular to the door 0.8m wide at its edge. Find moment at hinges. Also find moment at hinges if 20N force acts at 60 with the plane of door. i) 20N force acting perpendicular...

Develop an analysis of inflation by including the following: Choose a product or service you currently consume/use, such as apparel or educational services, that is included in the CPI's "market...

A differential band brake is used to control the speed of a drum which rotates at a constant speed. Knowing that the coefficient of kinetic friction between the belt and the drum is 0.30 and that a...

What approaches can organizations adopt to address systemic inequalities and structural barriers that perpetuate disparities in representation and opportunity, aligning diversity and inclusion...

1. Explain the Need, importance, process and Types of Control. 2. What is Budgeting? What are its purpose and types? How can it be made effective in an organization? 3. Explain in detail the various...

1. Define organization Behavior. 2. List the types of personality. 3. Difference between emotional intelligence and emotional Labour. 4. What do you understand by group dynamics? 5. Define...

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...

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...

1.What is meant by Fayol's principle of'esprit de corps'? 2. Which principle of management implies that there should be 'one head and oneplan' for a group of activities having the same objective? 3....

Question 1 Not yet answered Marked out of 1.00 Flag question In order to solve with y(0) = 1 we first (2y-5)dy = (3x e )dx. After y-5y = e +c of integration. Setting x= and where c is the have...

Creed Corporation is considering manufacturing a new engine designated as model VX4. The engine will be a different size from any produced by Creed, and the company expects to sell 20,000 units a...

Question 1 4 ( 2 points ) The Internal Revenue Service ( IRS ) is about to issue new rules regarding taxation of capital gains. Under the rulemaking process, which of the following are steps that the...

Frank enters into a written franchise agreement to open a Grande Burrito store. Grande Burrito represents that Frank will realize at least $500,000 in gross sales during his first year. During Franks...

Medical technology encompasses more than just sophisticated equipment. Discuss.

Your companys refinery produces two types of automotive fuels: the production cost for the established (A) and the new (B) product is at 1,500 and 2,200 per tonne, respectively. Based on inventory...

Assume lease option A and enter into an agreement on 1/1/18 and weapons returned on 12/31/2028. Prepare a lease amortization schedule describing the pattern of payments and interest over the lease...

Racol, Inc. is a long established company selling industrial piping and plumbing supplies. They ave four flants and a series of regional warehouses serving the contiguous United States. Total sales...

Question 45A deficiency in internal controls is described as a deficiency in the design or operation of a single control that does ra combination of deficiencies in internal control which are as...

The following data are obtained from tests on a 145-MVA, 13.8-kV, three phase, 60-Hz, 72-pole hydroelectric generator. Open-circuit characteristic: Short-circuit test: If = 710 A, Ia = 6070 A a. Draw...

A synchronous machine with a synchronous reactance of 1.28 per unit is operating as a generator at a real power loading of 0.6 per unit connected to a system with a series reactance of 0.07 per unit....

A two-phase permanent-magnet ac motor has a rated speed of 3000 r/min and a six-pole rotor. Calculate the frequency (in Hz) of the armature voltage required to operate at this speed.

The other-race effect occurs when we assume that other groups are _______ (more/less) homogeneous than our own group.

Prejudice toward a group involves negative feelings, a tendency to discriminate, and overly generalized beliefs referred to as _______.

Jamals therapist has suggested that Jamal should act as if he is confident, even though he feels insecure and shy. Which social psychological theory would best support this suggestion, and what might...