What is the meaning of Dyn11 of Transformer.

Answer Posted / finn rovsing

Dyn11 means that the High Voltage phase A is leading the
Low Voltage phase a by 330 deg. High Voltage phase B is
leading low Voltage Phase b by 330 deg. And similar for
Phases C /c. If you don't care about the correct name/mark
of the LV phase, you can also say that the LV phase is
leading with 30 deg. But in the latter case, the vector
group term 11 loses its original meaning.

Is This Answer Correct ?    0 Yes 1 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What will be the size of copper cable (each for 3 phase and 1 neutral) from Service connection Kit-Kat to Panel Board (i.e. to main switch) for a 6 pole 3-phase AC induction motor of 200 H.P. capacity? Amp-255 A, Frequency:- 1450 rpm.

1500


what happend to DC shunt motor if its field winding insulation becomes slightly weak? will that motor can run on full load or not explain in detail. thanks

1176


What would be the size of wire used for 2 Ton of window A.C?

1432


If we have to feed a housing complex having load 8MVA, than what would be the better option, either we first step down 33kv supply into 11kv & than 430v or we proposed no of 33/.44 kv transformer, also which option is economical?

1694


Is a 300w induction motor used in a food processor as powerful as a 1000w DC motor.

1743






How to synchoronize the generator (with gcb,GT) to grid????? ????? from Grid iam getting power (rated 400kv/20kv) through GT and its goes to UAT.,,ST.,, now my generator(rated 20kv ) ready.,, now iam closing my GCB.,, in GT iam suddenly giving 20kv on that Gt.,, what will happend

1631


What is the feedback in the control system?

632


why d.c produces corrosion

1499


What are the components of feedback control system?

626


what is breathing?

1345


What must be the minimum distance maintained between 2 Generators as per International standards?

1589


Why is a plain induction motor unsuitable for wide speed control?

1827


the problem faced on star or delta winding connection??

1509


what is gridrotor resistance starter

1446


DEAR SIR,I GOT THE CALL LETTER FROM RRB, SECUNDERABD AS A JE-II SO PLEASE PROVIDE ME SOME MODEL QUESTION AND ANSWER PAPERS AND LAST YEAR QUESTION PAPERS

1626