# Help!!!! What is the rated velocity and mechanical output power of the rotor? Velocity_1500 Power =...

###### Question:         help!!!!

What is the rated velocity and mechanical output power of the rotor? Velocity_1500 Power = h. r/min 186.4
3. Calculate the rotor slip velocity (in r/min) from procedures 6, 8, 9, 10 and 11. (slip velocity synchronous velocity slip (6) = slip (9) slip (11)-- rotor velocity). (5) r/min slip (8)- r/min r/min slip (10) r/min r/min
6. Couple the DC motor/generator to the wound-rotor motor with the timing belt. Turn on the power supply, Keep the variable output voltage control at zero (the DC motor should not be tuming) Measure and record the following: Ei = 210 W, - _-68 a. b. c. V AC E2-108VAC 112 w,= 0.8 0.85 A AC A AC 0.8 A AC d. Turn off the power supply
8. a. Tum on the power supply and adjust the variable DC output voltage for a motor velocity of exactly 900 r/min. Measure and record the following: Note: If the value of E2 is less than in procedure 6, turn off the power supply and b. nterchange any two of the three stator leads 210 160 V AC V AC W2-112 70 0.80 A AC 0.80 I20.80 A AC I3- 3A AC
0.80 I3 A AC c. Is the active power approximately the same as before? Yes □No 9. a. Increase the variable DC output voltage to 120 V DC and adjust the field rheostat for a motor velocity of exactly 1800 r/min Measure and record the following: El b. 210 vAC E2-210 V AC
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10. a. Interchange your DC armature connections in order to reverse the motor direction. Turn the field rheostat to its full clockwise position b. Turn on the power supply and adjust the DC output voltage for a motor velocity of 900 r/min c. Measure and record the following: 210 V AC 160 V AC E2 W2- 112W I2- 0.80 -70 0.80 A A A AC 0.80 13-
11. a. Increase the variable DC output voltage to 120 V DC and adjust the field rheostat for a motor velocity of 1800 r/min. b. Measure and record the following Ед 210 160 vAC V AC
-70 0.80 A AC 0.80 W W' = 112 = 12-0.80 A AC 13 A AC

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