Is the change in slip due to an increase/decrease in load torque? Tutorial Team Challenge Questions!!1. A6 polo machine is connectod to a 50 Hz supply. What is theSynchronous Speed (Ns) of the machino72. Tho 6 pole maching is now connocted to a 60HZ supply. Whal is theSynchronous Speed (Ns) of tho machino?3. 3.A4 polo machine is connectod to a 50HZ supply and rotatos at1470 pm. What is tho slip (S)?4. Tho slip now changos to 0.03-what spoed (rpm) does it nowoperato?5. Is tho chango in slip duo to an Incroaso or decreaso in load torquo?Show transcribed image textExpert Answer ®Anonymous answered thisWas this answer helpful?40 answers1. Synchronous speed N, = (120*frequency ) / No.of poles= (120*50)/6 = 1000 rpm2. Ng = (120*60)/6 = 1200 rpm3. Slip = ( synchronous speed - rotor speed)/ synchronous speedSynchronous speed Ng = ( 120*50)/4 = 1500 rpmslip = (1500-1470)/1500 = 0.02(x lo0)% slip = 0.02*100= 2%4. slip = 0.03Rearrange)0.03= (1500- rotor speed) /15000.03*1500=1500- rotor speed45= 1500- rotor speedrotor speed = 1500-45 = 1455 rpm

Yes slip varies with change in torque. For that we have torque slip characteristics of a three phase…

Answered: 5. Is the chango in slip duo to an…

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5. Is the chango in slip duo to an Incroaso or decroaso in load torquo?

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter12: Power System Controls

Section: Chapter Questions

Problem 12.4P

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