PPT – dc generators ppt PowerPoint presentation
ppt on working of dc generators – A free PowerPoint PPT presentation (displayed as an HTML5 slide show) on PowerShow - id: 3ca4ea-MjJhO
PPT
DC Motors. Construction very similar to a DC generator The dc machine can operate bath as a generator and a motor. ... An Image/Link below is provided (as is) to download presentation Download Policy: ... The AC …
Dc machines | PPT
Dc machines - Download as a PDF or view online for free ... • Note the commutator mounted on the shaft. It consists of several copper segments, separated by insulation. DC motor rotor construction Commutator Poles Rotor winding Fan Bearing Brushes ... – Constant speed operation. 22. 3/23/2007 ELEC A6 DC Machine 22 Shunt DC Motors By …
Tata motor's | PPT
Tata motor's - Download as a PDF or view online for free. Submit Search. Tata motor's ... Priyesh Neema Follow. Tata Motors is an Indian automotive manufacturing company that was founded in 1945 and is a …
Dc shunt motors; construction and working | PPT
7. DC Shunt Motors N S N S Working • It works on the principle of Lorentz Law, which states that "the current carrying conductor placed in a magnetic field experience a force. • Fields are produce by the main field poles and always in alternate pattern. • winding of all main poles are connected in series in such a way only two terminal remains.
Speed control of dc motor | PPT
3. SPEED OF A DC MOTOR We know, back emf of a DC motor Eb is the induced emf due to rotation of the armature in magnetic field. Thus value of the Eb can be given by the EMF equation of a DC generator. Eb = PØNZ/60A where, P= no. of poles, Ø=flux/pole, N=speed in rpm, Z=no. of armature conductors, A=parallel paths
Dc Series Motor | PPT
Dc Series Motor - Download as a PDF or view online for free. ... Construction • Rotor is placed inside the stator and separated from it by small air gap and free to rotate. • Rotor is supported by the end cover on both side of the motor frame with the help of bearings. • Brushes feeds direct electric current in to the armature winding ...
Dc motor operation and maintenance | PPT
8. Main parts of DC machines 1) Yoke or Frame or Magnetic frame 2) Poles and Pole shoe 3) Armature 4) Armature winding and Field winding 5) Commutator 6) Brushes 7) Shaft 1) Yoke: The yoke make by cast steel for large machines and cast iron for a small machine. It uses to protect the internal parts of the DC machine and gives mechanical support to the poles.
Working Principle of DC Motor
Introduction to DC Motors. The DC motor is the motor which converts the direct current into the mechanical work. Works on the principle of Lorentz Law, which states that the current carrying conductor placed in a …
Electric drive | PPT
Electric drive - Download as a PDF or view online for free. Electric drive - Download as a PDF or view online for free ... • It also selects the mode of operation of the motor, i.e., motoring or braking. 7. ... Brushless DC motor …
FOUR QUADRANT DC MOTOR SPEED CONTROL …
16. WORKING The following procedures are carried out for the four quadrant DC motor speed control operation using microcontroller. starts rotating in full speed being driven by a motor driver IC L293D that receives control …
Speed control of dc motor | PPT
3. SPEED OF A DC MOTOR We know, back emf of a DC motor Eb is the induced emf due to rotation of the armature in magnetic field. Thus value of the Eb can be given by the EMF equation of a DC generator. Eb = …
PPT – dc generators ppt PowerPoint presentation | free to download …
ppt on working of dc generators – A free PowerPoint PPT presentation (displayed as an HTML5 slide show) on PowerShow - id: 3ca4ea-MjJhO ... D.C. GENERATORS-CONSTRUCTION OPERATION ; DC Generators ; ... Construction details of DC generator. N shaft S 30 Main parts of a 4-pole d. c machine 31 Practical Dc Machine 32 1)Yoke ...
DC Generator.
A dc generator is an electrical machine which converts mechanical energy into direct current electricity. This energy conversion is based on the principle of production of dynamically …
Drives lec 11_12_Braking of DC Motors | PPT
3. Regenerative Braking In this method, the machine is made to run as a generator whose input energy is the K. E. of the machine and load. The power generated is fed-back to the source. The source must have the capability to store the energy or to supply the energy to other loads.
Motor starter | PPT
2. Necessity of starter At starting,the speed of motor is zero so that the back e.m.f. In the armature is zero. Armature resistance is so low, if it is connected to power supply directly ; huge current will pass thru armature. The huge current may damage the machine, major heat, very high speed in case of DC series motor. Ia = V/Ra
DC MOTOR
• Connection of windings for operation as motor: To operate the dc machine as a motor, the field winding and armature winding is connected across a dc power supply. DC Motor ... •Important parts of DC motor: 1. Yoke 4. Armature 2. Field winding 5. Commutator, brushes & gear 3. poles 6. Brushes 1. Yoke: It acts as the outer support of a DC ...
Unit7-DC Motors | PDF | Electric Motor | Materials …
Unit7-DC_Motors.ppt - Free download as Powerpoint Presentation (.ppt), PDF File (.pdf), Text File (.txt) or view presentation slides online. The document discusses direct current (DC) motors. It begins by describing the construction …
BLDC Motor | PPT
23. MOTOR PROTECTION • Peak current :－This is the maximum instantaneous current allowed to flow through the windings for safe operation. This condition occurs in case of a short circuit. • Under Voltage : – When the system is running on batteries, it becomes important to cut off the supply if the battery voltage drops below a particular limit.
PPT
During download, if you can't get a presentation, the file might be deleted by the publisher. ... DC Motor-Clutch-Generator Control Workstation Senior Project Proposal. ... Why DC-DC Converter?. Parts of Maharashtra, India have unreliable power supply Pedal Power used to charge batteries and run gadgets Batteries are 12 Volts and cannot be used ...
Speed controlling method of dc motor | PPT
Speed controlling method of dc motor - Download as a PDF or view online for free. ... • Download as PPT, PDF ... There is a limit to the maximum speed obtainable by this method. The field of a shunt motor in operation should never be opened because its speed will increase to an extremely high value. 4 5.
Electric locomotive ppt | PPT
Electric locomotive ppt - Download as a PDF or view online for free ... single phase AC, and three phase AC systems. Key parts of an AC electric locomotive are outlined such as the pantograph, transformer, rectifier and inverter. ... electrical motors are operates on DC supply to produce necessary movement of the vehicle. Mostly DC series ...
PPT – DC MOTOR PowerPoint presentation | free …
MOTOR OPERATION, CONSTRUCTION, CIRCUIT – A free PowerPoint PPT presentation (displayed as an HTML5 slide show) on PowerShow - id: 803ec6-Y2U0Z ... the fact that the operation of dc motor has been ... Metal …
Permanent magnet brushless dc motors ppt | PPT
12. Mechanical commutator • The current crossing through the armature conductor setup an mmf along the axis A and B • The commutator rotates along the clockwise direction, now the brush A makes contact with CS2 and brush B with CS 8. • Now there are two parallel path 1 is 2-8 & parallel path 2 is 2-1-12-11-10-9-8. • Function of commutator and bush …
PERMANENT MAGNET BRUSHLESS DC MOTOR | PPT
13. • The current crossing through the armature conductor setup an mmf along the axis A and B • The commutator rotates along the clockwise direction, now the brush A makes contact with CS2 and brush B with CS 8. • Now there are two parallel path 1 is 2-8 & parallel path 2 is 2-1-12-11-10-9-8. • Function of commutator and bush arrangement is to setup an …
PPT – DC MOTOR PowerPoint presentation | free …
Brushless DC Motor - Classical DC motors are no doubt good and simple but inefficient in some ways.• Although dc motors possess good control characteristics and ruggedness, their performance and applications are …
Dc motor | PPT
Dc motor - Download as a PDF or view online for free. 9. FIELD WINDING Field coil wound on pole The coil wound on the pole core are called field coils. Field coils are connected in series to form field winding. Current is passed through the field winding in a specific direction, to magnetize the poles and pole shoes. Thus magnetic flux is produce in the air gap between the …
dc Generator Ppt | PPT
5. D.C. GENERATORS PRINCIPLE OF OPERATION DC generator converts mechanical energy into electrical energy. when a conductor move in a magnetic field in such a way conductors cuts across a magnetic flux of lines and e.m.f. produces in a generator and it is defined by faradays law of electromagnetic induction e.m.f. causes current to flow if the …
UNIT I
PERMANENT MAGNET BRUSHLESS DC MOTORS Commutation in DC motors, Electronic Commutation - Difference between mechanical and electronic commutators- Hall sensors, Optical sensors, Construction and principle of PMBL DC Motor, Torque and E.M.F equation, Torque-speed characteristics, Power Controllers-Drive Circuits, Applications. UNIT 5
Ppt of servomotor | PPT
2. • A servo is a small device which has an output shaft which positions on coded signal. It is a rotary or linear actuator that allows for precise control of angular or linear position, velocity and acceleration. • The servo motor is which respond to signal abruptly and accelerate the load quickly are called servo motor.