Unbalanced Rotor Impedance Operation: Earlier Unbalanced Rotor Impedance Operation were employed for starting and speed control. They are not in use any more. However, a loose contact in the rotor…
Sequence Impedances and Networks of Synchronous Machine: Sequence Impedances and Networks of Synchronous Machine - Figure 10.11 depicts an unloaded synchronous machine (generator or motor) grounded through a reactor (impedance…
Induction Motor Drives Articles: Three Phase Induction Motors: Three Phase Induction Motors are of two types: squirrel-case and wound-rotor. In squirrel-cage, the rotor consists of longitudinal conductor-bars shorted by circular…
Fundamentals of Electrical Drives Articles: This Fundamentals of Electrical Drives Articles which includes the following topics: Electric Drive Motor Types of Electrical Drives Choice of Electrical Drives Torque Equation of…
Electrical Drives Articles: Advantage and Disadvantage of Stepper Motors Application of Variable Speed Drives Armature Voltage Control using Transformer Battery Powered Vehicles Braking of Induction Motor Drive Braking of Single…
Systems of Track Electrification AC Electrification System: As even in single phase electrification, the substations are necessarily required to keep the voltage drop within permissible limits. The type of substations…
Starting of Induction Motor Drives: Starting of Induction Motor Drives arrangement is chosen based on the load requirements and nature of supply (weak or stiff). It may be required to…
Fractional Kilowatt Motors Articles: Single Phase Induction Motor: A Single Phase Induction Motor comprises a single-phase distributed winding on the stator and normal squirrel-cage rotor as shown schematically in Fig.…