why a three phase transformer cant rotate like three phase motor
Answer Posted / jay
A current carrying conductor rotates only when it is placed in an external rotating magnetic field. Therefore there are two parts in any motor i.e. rotor and stator, one for the purpose of field and other for rotation. although there is a rotating field in a 3 ph transformer the flux and the magnetic field is the same (mutual flux). for the force there should be external magnetic field,current and conductor itself. As there is no external field all the pr and secondary winding do is to induce voltages.
| Is This Answer Correct ? | 1 Yes | 2 No |
Post New Answer View All Answers
what is meant by IGBT how they differ from tyristor ?
In our plant we have installed new MCC with ELR and CBCT which is detecting some leakage current in the system but it leading to some confusion when to check that in which feeder which is drawing current we put off the whole panel itself but still CBCT detecting some leakage current so can anybody ans me , where i am going wrong or how to detect whether its actual leakage or CBCT malfunctioning.
how many parameters can integrate with fire alarm basically ?
can some one clearly explain why -48 volt DC use in telecom site????
Explain how you intend to work under pressure to meet up with deadline target?
In a voltage-controlled current source A A current booster is never used B The load is always floated C A stiff current source drives the load D The load current equals Isc
In electrical locomotive engines, the DC series motors is being used as traction motor. But in new engines like in WAP7 & WAG9 the 3-phase squiral cage induction motors has replaced them. So can someone tell me the advantages of induction motor over dc seris motor in engines points of view....???
How to calculate the volumetric capacity of a oxygen & Nitrogen gas Cylinder if pressure is 145 kg/cm2 & water capacity of cylinder is 67 liters.
If ROC does not lies inside unit circle,then ? a) Fourier transform converges b) Z transform converges c) Hatly transform converges d) Colpit Transform converges.
how can i use REF and diffrencial relay both in 1 CT core for transformer protection?
Can we check ELCB constantly from R1 to R8 phase in 1 no DB?
Why are lt windings placed near the core?
what is physical distance of isolator to VCB in 33/11kv sub stations
A jet of fluid strikes a plate What was the force required to counter it?
sir pls tell me . our ct specifications are 120/5 ,2 core , 0.2 and 5p10 class , 30va and 30va buden. insted of 30 va i want use 15 va. can i use?