Rockwell-automation 150 MNL/SMC DIALOG+/APP-PROD GUIDE Manual do Utilizador Página 172

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10-10
Reference
Motor Output for
NEMA Design Designations
Polyphase 1–500 HP (cont.)
Figure 10.8 Typical NEMA Design D Speed/Torque Curve
Starting Current: Normal
Starting Torque: High
Breakdown Torque: None
Full-load Slip: High (5-13%)
Applications: The combination of high starting torque and
high slip make NEMA Design D motors ideal
for use on very high inertia loads and/or in
applications where a considerable variation in
load exists. These motors are commonly used
on punch presses, shears, cranes, hoists, and
elevators.
Torque
Speed
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