Page 41 - Industrial Power Engineering and Applications Handbook
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Figure 1.18(a) Screen protected drip proof (SPDP) squirrel Figure 1.18(b) Screen protected drip proof slip ring motor
cage motor (Cooling system ICOAI) (Cooling system ICOAI)
Figure 1.18(c) Large SPDP squirrel cage motor (enclosure IP 12) (Cooling system ICOAI)
1 Access for checking air gap
2 Air-deflecting baffle
3 Coil bracing ring
4 Fan
5 Rotor end ring
6 Rotor bars
7 Stator core
8 Fully-formed coils of the two
layer stator winding
10 Core duct separator
11 Preformed coil in section
12 End winding connections
13 Bearing endshield 19
14 Terminal box with bolted on
cable sealing end 18
15 Shaft
16 Grease ejector handle 17
17 Grease collector
18 Anti-friction bearing with
grease regulator
19 Grease impeller
16 15 14
Figure 1.18(d) Cross-sectional view of a large screen protected motor showing the cooling circuit (Cooling system ICOAI)
(Courtesy: NGEF Ltd)
