If the rotor pf of a 3 phase induction motor is .866, then what is the phase d

If the rotor pf of a 3 phase induction motor is .866, then
what is the phase displacement between stator and rotor
magnetic field
1)30,2)120,3)150,4)90

please justify....

Question Posted / sandeep

2 Answers
5695 Views
GATE, I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

If the rotor pf of a 3 phase induction motor is .866, then what is the phase displacement between ..

Answer / rishin

answer is 120....bcoz the answer is direct from the phasor
diagram which is same as that of the transformer phasor
diagram...

Is This Answer Correct ?

3 Yes

1 No

If the rotor pf of a 3 phase induction motor is .866, then what is the phase displacement between ..

Answer / guest

the pf angle is nothing but angle between voltage and
current and here in induction motor the emf and current are
displaced by 30 and the stator and rotor are displaced by
delta

Is This Answer Correct ?

3 Yes

2 No

Post New Answer

More Electrical Engineering Interview Questions

What is mean by power factor?

18 Answers Shreem Electric Ltd,

In generation,transmission and distribution voltage frequency is either 50HZ or 60 HZ;why are only these frequencies?

2 Answers

bit confused - am i correct in thinking that to determine line to line voltage in a star config 110v 3 phase 4 wire distribution system i would use a voltmeter? I have a circuit configured as an unbalanced load, consisting of three incandescent lamps (1x40w, 1x60w, 1x100w - all 110v rated)connected in a star configuration to a 110v 3 phase 4 wire distribution system. I want to find out what types of meters i would use to obtain: a) each line to line voltage b) the line to neutral voltage across each load c) current flowing in each line and load d) current flowing in the neutral conductor e) power supplied to the loads im assuming i would be using ammeters in series along each line and voltmeters in parallel across each line to neutral? Also how could i predict these meter readings before taking them and with which formulae? Any help would be greatly appreciated A.

1 Answers

Which type of transformer used in lighting load?

2 Answers IMFA,

what is the use of Reactive power in power system?

3 Answers

1 tr is equal to how many Kw .is there any specific formula for this to get the result .

13 Answers Cipla, LG, NSN,

what are the industrail measures to over ferranti effect? how would the ferranti effect the power system if those remedial mearsure arent taken? how often does this effect occurs in real power system?

0 Answers

what will hapen if secodery circuit is open of current transformer WHy neutral to ground trips when neutral touches the ground

1 Answers

what is AVP?

2 Answers

why transformer measures in kva

4 Answers

diameter of cable and core is doubled then the value of capacitance is

0 Answers

can any one tell me about the Extra low voltage systems?From where we give supply to these type of systems??

0 Answers MCB,

For more Electrical Engineering Interview Questions Click Here