A 35.2 HP, 250 V, 100 A, 1500 RPM, series DC motor with no armature reaction is considered in this problem. This motor has a series-field winding of 10 turns per pole. Its armature resistance in RA-0.05 , and its series field resistance is Rs=0.05 2. %3D The magnetization curve at 1500 RPM is given by the following table: EA (V) 50 200 (Amp.turns) 125 755 95 180 1280 150 200 1500 212 2000 243 3000 229 250 253 4000 500 1000 2500 3500 The motor is operating at rated voltage, armature current of 100Amperes, and with rotational losses of 1500 Watt. Find the speed of the motor. Select one: O a. None Ob. Speed =D1500 RPM OC. Speed n= 938 RPM O d. Speed n= 2400 RPM

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aThis course
A 35.2 HP, 250 V, 100 A, 1500 RPM, series DC motorwith no armature reaction is considered in
this problem.
This motor has a series-field winding of 10 turns per pole. Its armature resistance in RA-0.05 2 and
its series field resistance is Rs= 0.05 S2.
The magnetization curve at 1500 RPM is given by the following table:
EA (V)
50
95
125
150
180
1280
200
1500
212
229
243
250
253
200
500
755
1000
2000
2500
3000
3500
4000
(Amp.turns)
The motor is operating at rated voltage, armature current of 100 Amperes, and with rotationallosses
of 1500 Watt.
Find the speed of the motor.
Select one:
a. None
Ob.Speed =D 1500 RPM
OC Speed n = 938 RPM
d. Speed n = 2400 RPM
Consider a separately-excited DC moter with an armature resistance RA-025 and terminal volfage
150 V The mot
Transcribed Image Text:aThis course A 35.2 HP, 250 V, 100 A, 1500 RPM, series DC motorwith no armature reaction is considered in this problem. This motor has a series-field winding of 10 turns per pole. Its armature resistance in RA-0.05 2 and its series field resistance is Rs= 0.05 S2. The magnetization curve at 1500 RPM is given by the following table: EA (V) 50 95 125 150 180 1280 200 1500 212 229 243 250 253 200 500 755 1000 2000 2500 3000 3500 4000 (Amp.turns) The motor is operating at rated voltage, armature current of 100 Amperes, and with rotationallosses of 1500 Watt. Find the speed of the motor. Select one: a. None Ob.Speed =D 1500 RPM OC Speed n = 938 RPM d. Speed n = 2400 RPM Consider a separately-excited DC moter with an armature resistance RA-025 and terminal volfage 150 V The mot
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