Construction, Working Principle, Operation, Circuit diagram, Torque-Speed characteristics, Applications
Subject and UNIT: Basic Electrical and Electronics Engineering: Unit II: Electrical Machines
Shaded pole motor is a split phase type single phase induction motor. It has salient poles on the stator excited by single phase supply.
Working Principle, Circuit diagram, Speed-Torque characteristics, Applications
Subject and UNIT: Basic Electrical and Electronics Engineering: Unit II: Electrical Machines
In this type of motor, two capacitors are used. One capacitor (Cs) is used for starting purpose and the another capacitor (Cr) is used for running purpose.
Working Principle, Circuit diagram, Speed-Torque characteristics, Applications
Subject and UNIT: Basic Electrical and Electronics Engineering: Unit II: Electrical Machines
In this motor capacitor is permanently connected in series with the auxiliary winding.
Working Principle, Circuit, Phasor diagram, Speed-Torque characteristics, Applications
Subject and UNIT: Basic Electrical and Electronics Engineering: Unit II: Electrical Machines
Capacitor start induction motor is used to get higher starting torque. The capacitor is connected in series with the auxiliary winding
Working Principle, Circuit diagram, Torque-speed characteristics, Applications
Subject and UNIT: Basic Electrical and Electronics Engineering: Unit II: Electrical Machines
Split phase motor consists of two stator windings one is the main winding (or) running winding and another is auxiliary winding or starting winding.
Subject and UNIT: Basic Electrical and Electronics Engineering: Unit II: Electrical Machines
The single phase induction motors can be classified according to the phase difference produced between the currents in the main and auxiliary windings.
Subject and UNIT: Basic Electrical and Electronics Engineering: Unit II: Electrical Machines
A single phase induction motor is not self starting. To overcome this an auxiliary winding is provided in the stator in additions to the main winding
Subject and UNIT: Basic Electrical and Electronics Engineering: Unit II: Electrical Machines
From the principle, ie any alternating quantity can be resolved into two quantities which rotate in opposite directions and have half of the magnitudes.
Subject and UNIT: Basic Electrical and Electronics Engineering: Unit II: Electrical Machines
The single phase motors are simple in construction and small in size. These motors have power rating in fractional horse power range.
Subject and UNIT: Basic Electrical and Electronics Engineering: Unit II: Electrical Machines
When the excitation of a three phase synchronous motor taking constant power from costant voltage supply main is varied, the power factor of the motor changes.
Subject and UNIT: Basic Electrical and Electronics Engineering: Unit II: Electrical Machines
I lags/leads V by an angle ϕ and lags behind Er, by an angle Ɵ. Ɵ = tan-1 (Xs /Ra)
Subject and UNIT: Basic Electrical and Electronics Engineering: Unit II: Electrical Machines
The equivalent circuit model for one armature phase of cylindrical rotor synchronous motor.