Consider a separately-excited DC motor with an armature resistance RA = 0.2 ohm and terminal voltage VT = 130 V. The motor rated speed is 1200 RPM. The field winding supply VF= 36 V and the field resistance is adjustable. The motor has compensating windings and interpoles.
Consider a separately-excited DC motor with an armature resistance RA = 0.2 ohm and terminal voltage VT = 130 V. The motor rated speed is 1200 RPM. The field winding supply VF= 36 V and the field resistance is adjustable. The motor has compensating windings and interpoles.
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Consider a separately-excited DC motor with an armature resistance RA = 0.2 ohm and terminal voltage VT = 130 V. The motor rated speed is 1200 RPM. The field winding supply VF= 36 V and the field resistance is adjustable. The motor has compensating windings and interpoles.
Transcribed Image Text:Consider a separately-excited DC motor with an armature resistance RA = 0.2 Q and terminal voltage VT =
130 V. The motor rated speed is 1200 RPM. The field winding supply VF= 36 V and the field resistance is
adjustable. The motor has compensating windings and interpoles.
IF (A)
EA (V)
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
30
60
85
102
115
124
130
134
These values were taken at speed n=1200RPM
If the motor is driving a load at rated armature current IA = 33 A, with Radi +RF= 45 N.
Find the speed of rotation ofthe motor in RPM.
Select one:
O a. Speed n = 1303 RPM
O b. None
c. Speed n = 1200 RPM
O d. Speed n = 1105 RPM
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