Page 49 - Industrial Power Engineering and Applications Handbook

Main
I,
- - winding -
Im

Start hinding

(a) Schematic diagram
(c) Phasor diagram
High start but low running torques

Centrifugal switch
Centrifugal switch

e e
ET-
ET-

Disconnect
switch
1
1
0
ImiL 0
Nr
Nr
! - -
I,
r @ Capacitor start and run windings
@ Run winding
Y
Start winding @ Capacitor start and capacitor run windings
(b) General arrangement
(d) Speed-torque characteristics of capacitor start and
capacitor run motors

(e) Capacitor start or capacitor start-capacitor run 1-0 motor

Figure 1.24 Capacitor start winding