A 3-phase IM is supplied from 50 Hz system. It runs at speed
of 1440 rpm and slip equal to 4 %. Calculate rotor
frequency.
A 50 Hz B 0 Hz
C 4 Hz D 6 Hz

Answers were Sorted based on User's Feedback



A 3-phase IM is supplied from 50 Hz system. It runs at speed of 1440 rpm and slip equal to 4 %. Ca..

Answer / varaprasad

ANS: 2Hz


Rotorfrequency = s×frequency of applied voltage to stator = sf

SO,

ROTOR F = 0.04*50=2Hz

Is This Answer Correct ?    7 Yes 0 No

A 3-phase IM is supplied from 50 Hz system. It runs at speed of 1440 rpm and slip equal to 4 %. Ca..

Answer / ankit

A. 50Hz

Is This Answer Correct ?    1 Yes 1 No

A 3-phase IM is supplied from 50 Hz system. It runs at speed of 1440 rpm and slip equal to 4 %. Ca..

Answer / maaz

Ankit, how it's 50hz please post explaination.

Is This Answer Correct ?    0 Yes 0 No

Post New Answer

More Electrical Engineering Interview Questions

IS HI-POT TEST DONE ON A TRANSFORMER - YES OR NO? WHY?

4 Answers  


why the iron chains were hanged at the back or front of the trucks earlier which were touching the earth?

2 Answers  


checklist of ELCB

1 Answers   EECE,


What is meant by celling voltage & current in excitor ?

0 Answers  


What is Grounding?

2 Answers  






If I want to buy a new Xformer for my plant what are the main parameter will I need to check?

0 Answers  


Is a DC Transformer Possible? if Yes, Then Why, if not Then Why?

9 Answers  


What is the meaning of transformer 16 / 20 mva. 

1 Answers  


What are operating procudures & Safety precautions to be observed while operating OLTC in manual mode ?

0 Answers   NTPC,


What is earth fault?

3 Answers  


if we put a energy meter in 500 kvar capacitor bank ,then how much units show in energy meter per day.

2 Answers  


is IS says that neutral should be brought to switch box. and this one is a recomended practice

0 Answers   Sterling Wilson,


Categories
  • Civil Engineering Interview Questions Civil Engineering (5084)
  • Mechanical Engineering Interview Questions Mechanical Engineering (4451)
  • Electrical Engineering Interview Questions Electrical Engineering (16631)
  • Electronics Communications Interview Questions Electronics Communications (3918)
  • Chemical Engineering Interview Questions Chemical Engineering (1094)
  • Aeronautical Engineering Interview Questions Aeronautical Engineering (239)
  • Bio Engineering Interview Questions Bio Engineering (96)
  • Metallurgy Interview Questions Metallurgy (361)
  • Industrial Engineering Interview Questions Industrial Engineering (259)
  • Instrumentation Interview Questions Instrumentation (3014)
  • Automobile Engineering Interview Questions Automobile Engineering (332)
  • Mechatronics Engineering Interview Questions Mechatronics Engineering (97)
  • Marine Engineering Interview Questions Marine Engineering (124)
  • Power Plant Engineering Interview Questions Power Plant Engineering (172)
  • Textile Engineering Interview Questions Textile Engineering (575)
  • Production Engineering Interview Questions Production Engineering (25)
  • Satellite Systems Engineering Interview Questions Satellite Systems Engineering (106)
  • Engineering AllOther Interview Questions Engineering AllOther (1379)