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

Servo Motor Control: A Complete GuideKey learnings:Servo Motor Control Defined: Servo motor control allows precise manipulation of motor position, speed, and acceleration through electronic signals.Feedback Mechanism: The feedback system, often a potentiometer or encoder, ensures the motor’s output matches the control input precisely.PWM Signal: Pulse-width modulation (PWM) is crucial for setting the servo’s position by varying the duration of electrical pulses.Arduino and Servo Motors: Using an

Servo Motor: Definition, Working Principle, and ApplicationsKey learnings:Servo Motor Definition: A servo motor is defined as an electric motor that provides precise control of angular or linear position, speed, and torque using a feedback loop system.Control Systems: The servo motor utilizes advanced control systems like PID and fuzzy logic to adjust movement according to input and feedback signals for optimal performance.Types of Motors: Different types include AC and DC servo motors, with sub

How are Electric Motors Rated?Motor Power Rating DefinitionMotor power rating is the measure of the required supply voltage and maximum current for a motor to operate efficiently without breakdown.Efficiency and Damage PreventionProper motor power rating ensures maximum efficiency and prevents frequent damages from overloading.Thermal LoadingThe output power of the motor is linked to temperature rise, known as thermal loading, requiring careful heat management.Ventilation SystemA well-designed v

Wave Winding: Simplex, Duplex, Retrogressive And Progressive Wave WindingsKey learnings:Wave Winding Definition: A wave winding is defined as a type of armature winding where the end of one coil connects to the start of another, creating a wave-like pattern.Simplex Wave Winding: Simplex wave winding has odd back pitch and front pitch that are nearly equal and suitable for high voltage, low current machines.Duplex Wave Winding: Duplex wave winding involves two parallel paths and is used for highe

Magnetization Curve of DC GeneratorKey learnings: Magnetization Curve Definition: The magnetization curve of a DC machine shows the relationship between field current and armature terminal voltage on an open circuit. Importance: The magnetization curve indicates the saturation of the magnetic circuit, crucial for understanding the generator’s efficiency. Saturation Point: This point, also known as the knee of the curve, shows where further increases in field current yield minimal increases in fl

Hunting in Synchronous MotorKey learnings: Hunting Defined: Hunting in a synchronous motor is the phenomenon where the rotor oscillates around a new equilibrium position due to sudden changes in load. Causes of Hunting: Hunting can be caused by abrupt load changes, sudden field current adjustments, harmonic torque loads, or faults in the supply system. Effects of Hunting: This instability may cause the motor to lose synchronism, induce mechanical stresses, increase losses, and elevate temperatur

Synchronous Motor ExcitationPrior to understanding this synchronous motor excitation, it should be remembered that any electromagnetic device must draw a magnetizing current from the AC source to produce the required working flux. This magnetizing current lags by almost 90o to the supply voltage. In other words, the function of this magnetizing current or lagging VA drawn by the electromagnetic device is to set up the flux in the magnetic circuit of the device.The synchronous motor is doubly fed

Contents Working Principle of Synchronous Machine Using Chopper Further Development of Synchronous Machine Using Chopper Conclusion of Synchronous Machine Using ChopperKey learnings: Excitation Control Definition: Excitation control is defined as managing the DC field excitation in a synchronous machine to control its performance. Working Principle: The working principle of a synchronous machine using a chopper involves stepping up the voltage and controlling it through PWM signals to achieve th

Contents Working Principle of Synchronous Machine Using Chopper Further Development of Synchronous Machine Using Chopper Conclusion of Synchronous Machine Using ChopperKey learnings: Excitation Control Definition: Excitation control is defined as managing the DC field excitation in a synchronous machine to control its performance. Working Principle: The working principle of a synchronous machine using a chopper involves stepping up the voltage and controlling it through PWM signals to achieve th

What is an Armature?An armature is the component of an electric machine (i.e., a motor or generator) that carries alternating current (AC). The armature conducts AC even on DC (Direct Current) machines via the commutator (which periodically reverses current direction) or due to electronic commutation (e.g., in a brushless DC motor).The armature provides housing and support to the armature winding, which interacts with the magnetic field formed in the air gap between the stator and the rotor. The