Concept of Rotating Magnetic Field

Rotating magnetic field is magnetic field which rotates in space about some point or axis. The North and South poles continuously rotates with a specific speed, called synchronous speed.  All poly phase electrical machines are associated with rotating magnetic field in the air gap. Therefore,...
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Air Gap Power in Induction Motor

Induction Motor works on the principle of electromagnetic induction. The three phase input power supplied to stator terminal is converted into mechanical power at the shaft output. This conversion of energy takes place through magnetic coupling between stator produced rotating magnetic flux and rotor bars....
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Sign Convention in Electrical Circuits

Sign convention is the generalized way to solve and analyze the electrical circuits. It defines the positive or negative sign to be taken for various electrical parameters viz. current, voltage, power etc. Sign convention brings uniformity in the value of electrical parameters so that anyone...
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