Answer / bhaskar halder

D means delta
Y means star
N means neutral
DYN 11 means phase difference between 30 degree HV & LV
side (& vice versa ).DYN 11 TRANSFORMER loss is very low
because phase difference is minimum but it is not use for
higher rating because phase angle is very minimum so HV &LV
side are shrot to each other.so very higher rating use DYN
5 & DYN 6

Answer / rakesh

D- hv in delta
y- lv in star
n-lv in neutral
11-30 deg angle
notation of a transformer

Answer / vaihav sharma

delta primary,wye secondary and the current is at 11 o
clockreffred to the voltage.

Answer / thomas koottala

Dear Friends no doubt at all Dyn11 designed transformer always LV leads the HV 30 degree,... regards , Thomas Koottala,....

Answer / nagesh.patwari

Dyn11 transformer means

Transformer has a delta connected primary winding (D) a star connected secondary (y) with the star point brought out (n) and a phase shift of 30 deg leading (11). ... The 11 indicates the LV winding leads the HV by 30 degrees.

Answer / 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.

Answer / umar

Dyn11 means the Low Voltage winding is Delta connected and
High Voltage winding is Y connected with neutal is being
brought out. 11 shows that the LV winding is leading HV
winding by the angle of 30 degree.

A Question Like A Wire Is Wound Whose Resistance Is Some 132. 44647 Ohms. If A Voltage Of 30 mv, 296 Ma Current Is Applied To It What Is The Resistance.

0 Answers   TCS,

Should the neutral earthing of 33/11KV D-S transformer, be connected to the earth grid?(Yes/ NO) why?

1 Answers   HAL, Vijai Electricals,

Why there is a current in neutral line

3 Answers   Honeywell,

what is the load amp for 1 HP 3 phase Motor ?

15 Answers  

Why the CT Secondary is rated as 5A generally?

2 Answers  

in communication what is the role of elelctrical engineer?

3 Answers   Quippo, Reliance,

after parallaing two generators current is shooting up in both the generators.for ex: load is 400 kw..after paralling and load sharing current in running gen is approx 900 amps and incoming is 750 amps which is too high when trying toshift the load current in incoming gen is coming more than 1300 amps and both getting tripped and making blackout..

3 Answers  

Yazaki india pvt ltd interview questions qurey related

0 Answers  

Why we are using only Dyn11 tranformer in distribution system but not using a Dyn1 in distributing system?why not and advantage and disadvantage in both

0 Answers   Jindal,

what is the lemen of a single 5mm 13000mcd white led pls reply

1 Answers   Eskom, Sona,

what about the power of wattmeter at starting and loding?

0 Answers   TATA,

how CBCT works?

1 Answers