A DC motor is a mechanically commutated electric motor powered from direct current (DC). The stator is stationary in space by definition and therefore so is its current. The current in the rotor is switched by the commutator to also be stationary in space. This is how the relative angle between the stator and rotor magnetic flux is maintained near 90 degrees‚ which generates the maximum torque. DC motors have a rotating armature winding but non-rotating armature magnetic field and a static field
Premium Electric motor
The speed of an asynchronous motor rotating field and thus its rotor speed depends on the number of pairs of poles in the stator field .the rotor speeds n are lower than the table values by the amount of the relevant slip speed ns. Motors are designed with up to three stators windings‚ which have different number of pairs of poles. They can therefore run at up to pairs of poles. They can be in any desired ratio to one another. A pole-changing switch is used to changing poles for the desires speed
Premium Electric motor
GROUP 4 JULY 26‚ 2013 EE 4101 ENGR. KENNETH F. FAJILAN Reluctance Motor Introduction A reluctance motor is a type of electric motor that induces non-permanent magnetic poles on the ferromagnetic rotor. Torque is generated through the phenomenon of magnetic reluctance. There are various types of reluctance motor: Synchronous reluctance Synchronous reluctance motors have an equal number of stator and rotor poles. The projections on the rotor are arranged to introduce internal flux “barriers“
Premium Electric motor
Yamaha Motor Objectives In an effort to satisfy its loyal customers‚ Yamaha Motor Philippines‚ Inc. launches its service campaign‚ dubbed as the "Yamaha At Ur Service". Our campaign’s objectives are as follows: 1. To provide periodic and preventive maintenance to Yamaha customers‚ in order to lengthen the motorcycle’s life‚ as well as to make it safer for road use. 2. Promote YAMALUBE to Yamaha motorcycle owners. Changing the motorcycle lifestyle in the Philippines is one
Premium Philippines Tram accident Traffic collision
defined in a myriad of ways. I define "influence" in terms of direct change in the concrete circumstances of individual lives. It would be hard to identify anyone whose influence has been both more widespread and more beneficial than Henry Ford’s. Ford didn’t invent modern industry. He didn’t invent interchangeable parts or the assembly line. But he combined these elements in a way that revolutionized the meaning of manufacturing. And he did so deliberately. Ford’s genius was to make cars simple
Premium Leadership Management Social influence
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
Premium Electric motor
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
Premium Electric motor Electrical engineering Circuit breaker
Tesla Motors – Company Profile By Kevin Jarosz IE-618 Fall 2014 Financial Impact • Tesla will pay for this by taking a cut of the apps. • Tesla will take a 30%of the cost • Assuming each Tesla owner downloads 5 apps the first year at an • average price of $10‚ that is approximately $6M in revenue in 2015 of which Tesla gets $1.8M to pay. • In Q2 2014 Tesla reported their vehicle margin was 26.9% on a GAAP basis‚ and it is clear that apps will only increase vehicle margin. • Owners will be buying
Premium Electric car Tesla Motors Tesla Roadster
Research report Topic: Comparing the disclosure for intangible assets of CLS and Acrux Details: Analyze the disclosure of intangible assets about two selected company CSL and Acrux. Executive Summary The Australian Securities & Investments Commission ’s (ASIC) Financial Reporting Surveillance Program was purpose to improve the quality of financial reporting by reviewing the annual financial reports of two listed companies whether or not compliance with the Corporations Act and Australian
Premium Balance sheet Goodwill
Resources COMPANY: MCDONALD’S MÁRIO VIEIRA There are various types of resources McDonald’s would use that would be required to develop opportunity and to operate and deliver products and services to their customers. The resources that would be required would be dependant on many different aspects of the business such as the size of your business‚ the type of business etc. McDonald’s is a very large organisation that will have different resources that will assist them and ensure they are operating
Free