Dc machine ppt free download

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

DC Machines. One of energy can be obtained from the other form with the help of converters. Converters that are used to continuously translate electrical input to mechanical output or vice versa are called electric machines. The process of translation is known as. The process of translation is known as electromechanical energy conversion. DC Machine. DC Machine is most often used for a motor.

As examples, trolleys and underground subway cars may use dc motors. The stator carries a field winding that is used to produce the required magnetic field by DC excitation. Often know as the field. The rotor carries a distributed winding, and is the winding where the emf is induced.

Also known as the armature. The armature winding has a resistance, Ra. The field winding has resistance Rf. Shunt DC Motors — The armature and field windings are connected in parallel. Series DC Motors — The armature and field winding are connected in series. Compound dc motors. Adjustable speed, medium starting torque. Applications: centrifugal pump, machine tools, blowers fans, reciprocating pumps, etc. Series Motors: Variable speed motor which changes speed drastically from one load condition to another.

It has a high starting torque. Applications: hoists, electric trains, conveyors, elevators, electric cars. Compound motors: Variable speed motors. It has a high starting torque and the no-load speed is controllable unlike in series motors. Applications: Rolling mills, sudden temporary loads, heavy machine tools, punches, etc. Create Presentation Download Presentation. Skip this Video. Loading SlideShow in 5 Seconds.. Download Presentation. Share Presentations.

Email Presentation to Friend. The process of translation is known as Uploaded on Aug 09, Download Presentation DC Machines. Related More by User.

 
 

 

Dc machine ppt free download.DC Machines

 

It is cylindrical in shape and it is made up of copper. It performs two basic functions. They are usually made up of carbon or graphite and their purpose is to collect current from moving commutator. It is the rotating part of the dc motor and we obtain the final mechanical output from the shaft. When the rotation starts electrical output is generated and is collected at a load.

Separately excited dc motors have industrial applications. They are often used as actuators. For electro plating Battery charging. Used as a supply dc welding machines. Open navigation menu. Close suggestions Search Search. User Settings.

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Download now. Original Title: Dc Machine Ppt. Jump to Page. Search inside document. YOKE : This part acts a protective cover for the dc motor. They perform the function of producing magnetic field. COIL : Here, we can see the direction of rotation. SHAFT It is the rotating part of the dc motor and we obtain the final mechanical output from the shaft. When the battery or any external source is applied the rotation starts.

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