The Difference Between the Fuse and Circuit Breaker are explained considering various factors like Working Principle, Reusability, Indication of status, Requirement of Auxiliary equipment, Temperature, Characteristic Curve, its Function, Protection, Breaking Capacity, Operating time, Cost and Mode of Operation. The Difference Between Fuse and Circuit Breaker is given below in the tabulated form A Fuse …
In the previous article Induction Generator we have seen, What is an Induction Generator? And it’s torque-speed characteristic. Here we are now going to discuss the various Advantages, Applications and the Limitations of the Induction Generator. Contents: Advantages of an Induction Generator Applications of an Induction Generator Limitation of an Induction Generator The induction machine …
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The basic feature of Pole Amplitude Modulation (PAM) winding is the layout, which is irregular. The windings are divided into two parts. The two parts are either connected in series or parallel. The directions of current in the two halves are either same or opposite. The process of the current reversal is equivalent to modulation …
Space harmonics fluxes are produced by the windings, slotting, magnetic saturation, inequalities in the air gap length. These harmonic fluxes induce voltages and circulate harmonic currents in the rotor windings. The interaction between the harmonic currents generated in the rotor and the harmonic fluxes results in the Harmonic torques, vibrations and the noise. The air …
Stator Voltage Control is a method used to control the speed of an Induction Motor. The speed of a three phase induction motor can be varied by varying the supply voltage. As we already know that the torque developed is proportional to the square of the supply voltage and the slip at the maximum torque …
Difference between star and delta connection are explained considering various factors like the basic definition of the connections, the existence of a neutral point, the connection of the terminals, the relation between line current and phase current and also between line voltage and phase voltage, speed, its insulation level, number of turns, type of system …
Slip Energy Recovery is one of the methods of controlling the speed of an Induction motor. This method is also known as Static Scherbius Drive. In the rotor resistance control method, the slip power in the rotor circuit is wasted as I2R losses during the low-speed operation. The efficiency is also reduced. The slip power …
The Circle Diagram of an Induction motor is very useful to study its performance under all operating conditions. The construction of the circle diagram is based on the approximate equivalent circuit shown below. It is the diagrammatic representation of the performance of the induction motor. The circle diagram provides the information about the power output, …
Rotor Resistance Control is also one of the methods by which we can control the speed of the Induction motor. The speed of the wound induction motor can be controlled by connecting an external resistance in the rotor circuit through slip rings. This method is not applicable to cage rotor induction motor. As we know …
Variable Frequency Control is a method which is used to control the speed of an induction motor. The synchronous speed and therefore, the speed of the motor can be controlled by varying the supply frequency.The synchronous speed of an induction motor is given by the relation shown below. The EMF induced in the stator of …
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