Page 50 - Industrial Power Engineering and Applications Handbook

Theory, performance and constructional features of induction motors 1/31
r - VW-S) -7 y- Vr(1-d -7
Main
- -
L
L1 C
II -
w

Start winding
Cz = 5 to 6 times Cl
(ai) Schematic diagram (a2) Schematic diagram

vr(l-$) winding

-

Start winding
Start winding
General arrangement Cl = Run capacitor
C, = Start capacitor
General arrangement
(bl) Low start but high running torques
(b2) High start and high running torques
Figure 1.25 Capacitor start and capacitor run windings

Shading coil (copper ring)
Laminated stator core
Squirrel cage rotor 7

Shading coil (copper ring)
Figure 1.26(a) General arrangement of Figure 1.26(b) Shaded pole 1-g motor [(Courtesy: AUE (GE Motors)]
a shaded pole motor