ELECTRICAL DRIVES AND CONTROLS Lecture Notes Study Material PDF

Mechanical and other. Units covered: INTRODUCTION, DRIVE MOTOR CHARACTERISTICS, STARTING METHODS, CONVENTIONAL AND SOLID STATE SPEED CONTROL OF D.C. DRIVES and CONVENTIONAL AND SOLID STATE SPEED CONTROL OF A.C. DRIVES.

Topics covered...

• Basic Elements
• Types of Electric Drives
• factors influencing the choice of electrical drives
• heating and cooling curves
• Loading conditions and classes of duty
• Selection of power rating for drive motors with regard to thermal overloading and Load variation factors
• Mechanical characteristics
• Speed-Torque characteristics of various types of load and drive motors
• Braking of Electrical motors
• DC motors: Shunt, series and compound
• single phase and three phase induction motors.
• Types of D.C Motor starters
• Typical control circuits for shunt and series motors
• Three phase squirrel cage and slip ring induction motors.
• Speed control of DC series and shunt motors
• Armature and field control
• Ward-Leonard control system
• Using controlled rectifiers and DC choppers –applications.
• Speed control of three phase induction motor
• Voltage control, voltage / frequency control, slip power
• recovery scheme
• Using inverters and AC voltage regulators – applications.

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