A 200-V, 100 A armature full-load line current, 1500 RPM, shunt DC motor is considered in this problem. Its characteristics are given below: RA = 0.20 2 RF = 250 2 NF = 2000 turns This motor has compensating windings and interpoles. The magnetization curve for this motor at 1500 RPM is shown in a tabular form below: If, A EA,V 6.0 25 50 110 135 160 205 235 255 275 285 288 0.1 0.2 0.4 0.5 0.6 0.8 | 1.0 1.2 | 1.6 1.8 2.0 | 2.2 | 2.4 290 291 For Radj between 150 2 and 250 , find the range of no-load speed of this motor. Select one: O a. Range of speed between 1222 RPM and 2360 RPM O b. Range of speed between 2222 RPM and 2727 RPM O c. None d. Range of speed between 1818 RPM and 2220 RPM

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A 200-V, 100 A armature full-load line current, 1500 RPM, shunt DC motor is considered
in this problem. Its characteristics are given below:
RA = 0.20 2
RF = 250 2
NF = 2000 turns
This motor has compensating windings and interpoles.
The magnetization curve for this motor at 1500 RPM is shown in a tabular form below:
0.1 0.2 0.4 0.5 0.6 0.8 1.0 1.2 1.6 1.8 2.0 2.2 2.4
110 135 160 205 235 255 275 285 288 290 291
If,A
EA.V | 6.0| 25
50
For Radj between 150 2 and 2502, find the range of no-load speed of this motor.
Select one:
O a. Range of speed between 1222 RPM and 2360 RPM
O b. Range of speed between 2222 RPM and 2727 RPM
O c. None
O d. Range of speed between 1818 RPM and 2220 RPM
Transcribed Image Text:A 200-V, 100 A armature full-load line current, 1500 RPM, shunt DC motor is considered in this problem. Its characteristics are given below: RA = 0.20 2 RF = 250 2 NF = 2000 turns This motor has compensating windings and interpoles. The magnetization curve for this motor at 1500 RPM is shown in a tabular form below: 0.1 0.2 0.4 0.5 0.6 0.8 1.0 1.2 1.6 1.8 2.0 2.2 2.4 110 135 160 205 235 255 275 285 288 290 291 If,A EA.V | 6.0| 25 50 For Radj between 150 2 and 2502, find the range of no-load speed of this motor. Select one: O a. Range of speed between 1222 RPM and 2360 RPM O b. Range of speed between 2222 RPM and 2727 RPM O c. None O d. Range of speed between 1818 RPM and 2220 RPM
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