what is phase shifting transformer.

Answer Posted / milinda4p

It is simply a 3 phase wound rotor induction motor which is operated at locked rotor condition. Its rotor and stator winding terminal has come out where we can make external connections.
We can connect a 3 phase power supply side to the stator and observe the waveform at other side (rotor) (or vice versa).
There if we change the rotor position manually by rotating we can observe that the  phase angle difference between stator voltage and rotor voltage is increasing or decreasing (depending on the direction of rotation).
In the technical term this is called as "synchro differential transmitter"

Is This Answer Correct ?    0 Yes 1 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

How much dc volt applied in cathodic protection system?

1840


1)How much current can a 3-1/2 core 100 mm wire carry? 2)What are the special cables required for explosion proof wiring? 3)In case you do not have coal and salt for earthing, how can you achieve good temporary earthing? 4)One horse power single phase motor is more likely to get hot than a one horse power 3 phase motor. Is it true or false, if true why? 5)What are the different types of soft starters for large motors?please explain?

4225


clarify types of motor operated valves and advantages

1471


What we mean by vintage of an engine+Generator?

1597


What are the factors which influence the choice of specific magnetic and electric loadings of a synchronous machine?

1595






gas turbine genrator reactances

1525


In electrical what is earth(ground)connection, wht is the importance of it, why it is recomended to maitain below 3VAC between Neutral and earthspecially in PLC used machines?

1757


Hi friends, i m electrical engineer i want a cdr for migration purpose so anybody have information about this then send me on jayesh_ee88@yahoo.com.please try to me

1432


Explain the different regions in frequency response?

645


1- What is the Polarization Index number be good for 15KV 3c#500MCM electrical cable? 2- Can I use the IEEE Std 43-2000 to perfom the PI test? Thanks

2913


how to calculate short circuit current for the busbar

953


what is servo motor & how does it work.

1502


Is it acceptable of installing an earth pit in planters area where bare copper cable, earth rod and connection are susceptible to corrosion due to water?

1475


what is the min and max ohmic resistance for the earthing rod installed for lighting poles for street light network

3036


IN dc capacitive reactance is??

931