A

460V60Hz

four-pole

Y

-connected induction motor is rated at

25hp

. The equivalent circuit parameters are

R_(1)=0.15\\\\Omega ,R_(2)=0.154\\\\Omega ,x_(1)=0.852\\\\Omega ,x_(2)=1.066\\\\Omega ,x_(m)=20\\\\Omega

,

P_(F&W)=400W,P_(core )=400W

, and

P_(misc )=150W

, For a rotor slip of

2%

, find:\ The line current

I_(L)

\ The stator copper losses

P_(SCL)

\ The air-gap power

P_(AG)

and the power converted

P_(conv )

\ The induced torque

T_(ind )

and the load torque

T_(load )

\ The overall machine efficiency\ Draw a diagram shows the effect of increasing torque on the shaft of Synchronous motor, assuming that the motor operating at leading PF.\ Explain the following figure briefly

A 460V60Hz four-pole Y-connected induction motor is rated at 25hp. The equivalent circuit parameters are R1=0.15,R2=0.154,X1=0.852,X2=1.066,Xm=20, PF&W=400W,Pcore=400W, and Pmisc=150W, For a rotor slip of 2%, find: 1. The line current IL 2. The stator copper losses PSCL 3. The air-gap power PAG and the power converted Pconv 4. The induced torque Tind and the load torque Tload 5. The overall machine efficiency 6. Draw a diagram shows the effect of increasing torque on the shaft of Synchronous motor, assuming that the motor operating at leading PF. 7. Explain the following figure briefly