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Lesson 7 - Coggle Diagram
Lesson 7
Types of Motor
AC Motor
Single-phase
Asynchronous
Synchronous
Three-phase
Synchronous
Permanent Magnet
Salient Pole
Non-Salient Pole
Asynchronous
Squirrel Cage
Permanent Magnet
Wound Rotor
F = IlB
DC Motor
Permanent Magnet / Brushless
Separately Excited Shunt Wound
Series Wound
Right hand grip rule
The thumb represents the polarity of the magnet
The curved fingers represent the direction of the current flow
Synchronous Motor
Equal to Synchronous speed
Ns = 120f / p
No slip: speed is constant regardless of load
Asynchronous Motor
Slightly less than synchronous speed
N = Ns (1-S)
Speed decreases slightly with load
stator is the stationary part, while the rotor is the rotating part
Synchronous speed (Ns) = 120*f / p