Free Expert Guides on Power Systems, Circuit Design & Electrical Troubleshooting

What is a Wound Rotor Induction Motor?Winding rotor induction motor definitionA wire-wound rotor induction motor (also known as a circular motor or slip-ring induction motor) is defined as a special type of three-phase AC induction motor designed to provide high starting torque by connecting an external resistance to the rotor circuit. The rotor of the motor is a winding rotor. That is why it is also called a winding rotor or phase winding induction motor.The running speed of a slip ring inducti

What is Speed Control of DC Motor?Dc motor speed controlThe process of adjusting motor speed to meet specific operating requirements.The speed (N) of a DC motor is equal to:Therefore, the speed of the 3 types of DC motors (shunt motors, series motors, and compound motors) can be controlled by changing the quantity on the right side of the above equation.Dc series motor speed regulationArmature control methodArmature resistance control methodThis common method involves placing the control resista

What is Speed Regulation of DC Motor?Speed regulation definitionThe speed regulation of a DC motor is a change in speed from no-load to full load, expressed as a fraction or percentage of full load speed.Good speed regulationA motor with good speed regulation has the smallest difference between no-load and full-load speeds.Motor type Permanent magnet dc motor Dc shunt motor Dc series motor Compound dc motorVelocity and electromotive force relationThe speed of a DC motor is proportional to the el

What is Ward Leonard Method of Speed Control?Vaud Leonard method definitionThe Vaud Leonard method is defined as a speed control system using a DC motor with a variable voltage provided by an electric generator set.Principles of the Vaud Leonard methodThe system involves a DC motor (M1) that is driven by another motor (G) that is driven by another motor (M2) that controls the speed by adjusting the output voltage of the generator.Advantage It is a very smooth speed control system over a very wid

What is are the Types of Single Phase Induction Motors ?Single phase induction motor definitionA single-phase induction motor is an electric motor that operates in a single AC phase and requires additional mechanisms to initiate rotation.According to the extra flux single-phase induction motor can be divided into Split phase induction motor Capacitance starts induction motor Capacitor start Capacitor run induction motor Permanent shunt capacitor (PSC) motor Shaded pole induction motorSeparate ph

What is a Single Phase Induction Motor?Single phase induction motor definitionSingle-phase induction motor is a kind of motor that converts single-phase electrical energy into mechanical energy by magnetic interaction.StructureStatorThe stator is the stationary part of the induction motor. The single-phase AC power supply is provided to the stator of the single-phase induction motor. The stator of the single-phase induction motor is laminated to reduce the eddy current loss. Slots are located on

Loss and Efficiency of Induction MotorsLoss type Fixed loss Variable lossFixed loss definitionFixed loss is the loss that remains unchanged during normal operation, including iron loss, mechanical loss, brush friction loss.Loss of iron or coreIron loss or core loss is divided into hysteresis loss and eddy current loss. By laminating the core, eddy current losses can be reduced, thereby increasing resistance and reducing eddy currents. The use of high-grade silicon steel minimizes hysteresis loss

What is an Induction Motor?Induction motor definitionAn induction motor is a type of AC motor in which torque is generated from the rotating magnetic field of the stator to the rotor by electromagnetic induction.Working principleThe working principle of the induction motor is that the alternating current induces a magnetic field in the stator, and then induces a current in the rotor, generating torque and making the rotor rotate.Type of induction motorType of single-phase induction motor Split p

What is Linear Induction Motor?Linear induction motor definitionA linear induction motor is a special type of induction motor designed to produce linear motion rather than rotational motion.Design featureThe design and construction of a linear induction motor is similar to the design and construction of a three-phase induction motor, albeit with a unique flat appearance. By cutting and flattening the stator of the polyphase induction motor, we form the main components of the system. Similarly, f

What is Phasor Diagram for AC Series Motor?Phasor diagram definitionThe phasor diagram illustrates the phase relationship between different electrical quantities in AC series motors.Characteristics of AC series motor Power factor characteristic Velocity current characteristic Torque current characteristics Torque speed characteristics Power output characteristicPower factorA high power factor requires low reactance and back electromotive force, which decreases when overloaded.Velocity and back e