Why Three Phase Induction Motor Self-Starting?
When a three-phase supply is fed to the stator of an induction motor, the stator draws current from the 3-phase supply, which produces the magnetic … Read more
An electrical machine converts mechanical energy into electrical energy or vice versa. The transformer is also an electrical machine which transform the voltage without changing the frequency. We will discuss about the;
When a three-phase supply is fed to the stator of an induction motor, the stator draws current from the 3-phase supply, which produces the magnetic … Read more
What are Ferrite Core Transformers? Ferrite core transformers are made from ferrite materials. The ferrite core transformer is used for higher-frequency applications. The power transformer is … Read more
The DC motor converts electrical energy into mechanical energy. The input power to the DC motor is DC power. The DC motor works on the … Read more
When the current-carrying conductor is placed in the magnetic field, the conductor experiences a force that exerts a turning moment or torque F x r. … Read more
The insulated bearing for the motor is used to prevent the circulating current through the motor bearing. The circulating bearing current can damage the bearing. … Read more
The power factor and dispersion coefficient of an induction motor have a relationship. The smaller the dispersion coefficient, the better the power factor. Power factor … Read more
The transformer draws no load current from the supply source when its secondary is open circuit. The no-load current has two components: magnetization current(Im) and … Read more
At no load the speed is closest to its synchronous speed. This running speed reduces further when loaded towards its full load capacity, to about 5% for a moderately rated machine tojust more than 5% for smaller rated machine.
The current transformer is used for measuring the current. The specifications of the measuring class CT are given below. The Instrument Safety Factor (ISF) is a … Read more
The DC motor is most suitable for loads that demand a higher starting torque. When DC voltage is applied to the armature, the motor is … Read more