AC Motors vs DC Motors DC Motors Prof. Dr. M. Zahurul Haq zahurul@me.buet.ac.bd http://teacher.buet.ac.bd/zahurul/ Department of Mechanical Engineering Bangladesh University of Engineering & Technology e316.eps ME 475: Mechatronics AC motors are smaller in size‚ reliable and less costly. AC motors run at fixed speed set by the line frequency. Easy speed‚ torque & direction controls in DC motors. DC motors are generally operate at lower voltages which makes these easier to interface with control
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1.Identify FOUR (4) types of documents and its functions in Payroll and Personnel Audit Cycle 2. Give TWO (2) examples of each of Substantive Analytical Procedures in Payroll & Personnel Audit Cycle when auditing the accounts below: i- Payroll Expense Accounts ii- Payroll-Related Accrual Accounts 3. Describe the duties that are performed within the personnel‚ timekeeping‚ and payroll processing functions. 4.a. Describe what are the key authorisation points in a payroll system. b.Explain
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ELECTRIC MOTOR CONTROLS Once the proper motor is selected‚ understanding the many various control devices available and their uses and limitations becomes an important part related to reliable operation and protection of the motor and the personnel using the motor. Motor Control Topics There are four major motor control topics or categories to consider. Each of these has several subcategories and sometimes the subcategories overlap to some extent. Certain pieces of motor control equipment can accomplish
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CASE STUDY ON TATA NANO TATA MOTORS HAS UNVEILED THE WORLD’S CHEAPEST MOTOR NANO CAR The case discusses the making of Tata Nano‚ the world’s cheapest car‚ manufactured by India based Tata Motors. On March 30‚ 2009‚ Tata Nano was launched with an ex-factory price tag of INR 100‚000 (about US$ 2000). The case explains the design and development process of TataNano. The car was the result of a five year research and development project carried out by Tata Nano development team. While developing
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Tesla Motors‚ Inc. Tesla Motors‚ Inc. (Tesla)‚ incorporated on July 1‚ 2003‚ designs‚ develops‚ manufactures and sells electric vehicles and advanced electric vehicle powertrain components. The company was founded by a group of Silicon Valley Engineers who saw an opportunity to mass-produce electric vehicles as substitutes for the ordinary gasoline powered vehicles. Tesla‚ which issued its IPO in 2010‚ became the second listed American motor company after Ford‚ which went public in 1956.Tesla owns
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Problem Definition John Bridges‚ the chief electrical engineer of Hamilton Oil Company‚ has concluded through motor testing that DMC competitors Spartan Motors and the Universal Motor Company of Canada offer the first and second choice motors on the market‚ respectively. DMC’s position as the third choice could prove quite detrimental to its market share because Hamilton is the largest active oil company in Canada‚ operating over 30% of producing wells‚ and Bridges is extremely influential in
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(Mysore) Ltd.? Ans. Deccan Herald. It is coming out with a Delhi edition Q9. For which innerwear brand have David Beckham‚ Cristiano ronaldo and now Rafael Nadal bared ? Ans. Armani Q10. Which oil co in India has launched India’s first self service petrol pump in Delhi recently ? Ans. Indiannoil Q11. Which four Indian cos have been included in the new Harvard book “Higher ambition: ” ? Ans. Tata Sons‚ Thermax ‚ Infosys and Mahindra & Mahindra Q12. In this era what are the 2 purposes for
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Very simply put‚ strategic planning identifies where the organization wants to be at some point in the future and how it is going to get there. The "strategic" part of this planning process is the continual attention to current changes in the organization and its external environment‚ and how this effects the future of the organization. Skills in strategic planning are critical to the long-term success of your organization. This form of planning includes: a) Taking a wide look around at what
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EXPLAINING THE BASICS OF MOTION MN1205 TABLE OF CONTENTS TYPES OF MOTORS . . . . . . . . . . . . . . 3 OPEN LOOP/CLOSED LOOP . . . . . 9 WHAT IS A SERVO . . . . . . . . . . . . . . 11 COMPENSATION . . . . . . . . . . . . . . . 13 TYPES OF CONTROLS . . . . . . . . . . . 15 TYPES OF FEEDBACK DEVICES . 17 TYPES OF ACTUATORS . . . . . . . . . . 22 Page 2 Servo Control Facts TYPES OF MOTORS The direct current (DC) motor is one of the first machines devised to convert electrical energy to
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SISTEMAS DC Motors Catedrático: Ing. Gustavo Mendoza Leal Alumno: Alfredo Valdés Cárdenas Introduction A DC motor is a type of electrical machine that converts direct current into mechanical power by means of a magnetic field. DC motors are widely used in field applications because of their many advantages over AC motors such as speed control‚ high starting torque‚ quick starting‚ stopping‚ reverse and acceleration and free from harmonics found in AC. Applications of DC motors include but
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