Parallel Operation of Synchronous Generator: We already know that synchronous machine connected to infinite bus-bars. Parallel Operation of Synchronous Generator of two finite size will be considered, which is the way large practical size generators…
No Load Test of Induction Motor: In this No Load Test of Induction Motor, the motor is run on no-load at rated voltage and frequency. The applied voltage and current and power input to motor…
Natural Cooling System in Transformer: Natural Cooling System in Transformer - Smaller size transformers are immersed in a tank containing transformer oil. The oil surrounding the core and windings gets heated, expands and moves upwards.…
Multiply Excited Magnetic Field System: Multiply Excited Magnetic Field System - Singly-excited devices discussed earlier, are generally employed for motion through a limited distance or rotation through a prescribed angle. Electro-mechanical transducers have the special…
Motor Control by Static Power Converters: Motor Control by Static Power Converters - Power electronics is a multidisciplinary technology that encompasses power semiconductor devices, converter circuits, electric machines, signal electronics, control theory, microcomputers, very-large scale…
MOS Controlled Thyristor (MCT) | Symbol | Equivalent Circuit: An MOS Controlled Thyristor (MCT) is a thyristor-like trigger-into-conduction device that can be turned on or off by a short pulse on the MOS gate. It…
MMF of AC Distributed Winding: It has been seen earlier that the armature what-when-how.comof a practical machine has distributed winding wound for the same number of poles as the field winding. As the armature carries…
Methods of Excitation of DC Generator: The performance characteristics of a dc machine are greatly influenced by the way in which the field winding is excited with direct current. There are two Methods of Excitation…
Magnetization Characteristics of DC Generator: The emf and torque equations, and power balance has been considered so far. The consideration of the Magnetization Characteristics in this section will set the stage for determining the performance…
Magnetically Induced Emf and Force: Magnetically Induced Emf and Force - Faraday's law of induction, which is the integral form of the fourth Maxwell's equation, is given as The integrated form of Eq.(2.15) for a…