1 answer

-23 An 8-pole, 230-V, 60-Hz, A-connected, three-phase induction motor has a rotor impedance of 0.025 +...

Question:

-23 An 8-pole, 230-V, 60-Hz, A-connected, three-phase induction motor has a rotor impedance of 0.025 + 0.112/phase. The stato
-23 An 8-pole, 230-V, 60-Hz, A-connected, three-phase induction motor has a rotor impedance of 0.025 + 0.112/phase. The stator winding impedance is negligible. Determine (a) the speed at which the motor develops the maximum torque, (b) the maximum torque of the motor, and (c) the start- ing torque as a percentage of maximum torque. What additional resistance must be inserted in the rotor circuit to make the starting torque equal to 75% of the maximum torque?

Answers

P= 8 pole 230v, botz Dr Connection za = 0.025+ jose les T = 160 Anas) i Te & Tm = (he) Prano ---- Rlaires = 3 2 x P2 = Pg / -may ? at man toque formy do toho Centre PAs262 (9) - - - - - - quang AA- 1L ? x 0:1 Os from a Ta Purles a 22 B firme I si T2here there Tom - Ts= :47.050% of Tomom 17 = 0.4705 @ Sab post Tst=754 Tman & . Ist Train hiwe 7 3/4= 3 sm 3mt 3 #85m Smll IThank you.

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