IP – INGRESS PROTECTION

IP- Ingress protection classifies and rates the degree of protection provided against intrusion, dust, accidental contact, and water by mechanical casings and electrical enclosures. It followed by two or three digits. 1st Number  0 No special protection.                          ...
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How to speed control of AC Motor ?

AC induction motors are based on the principle of a rotating magnetic field produced by a set of stationary windings (called stator windings) energized by AC power of different phases. The effect is not unlike a series of blinking light bulbs which appear to “move” in one...
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How to speed control of DC motor ?

DC electric motors generate torque by a reaction between two magnetic fields: one field established by stationary “field” windings (coils), and the other by windings in the rotating armature. Some DC motors lack field windings, substituting large permanent magnets in their place so that the stationary magnetic field...
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