Answer / banda saivarun

it is a Vector group of transformer
Vector group means it defines the primary & secondary side connection type. It says D for the delta connections (windings connected between two phases) & Y for the star connections (windings connected from each phase to ground). The 11 stands for the phase displacement of the secondary referenced to the primary. Imagine a clock with only an hour hand; at 11 o'clock, the hand is at 30 degrees to the reference (12 c'clock), so the secondary is at 30 degrees to the primary. tor group of transformer

Answer / nikhil karle

this is vector group of xmer
Which is stand as
D delta(primary)
Yn star with neutral (secondary )
11 30°lead

Answer / k.prakashchandra

It should be Dyn11

Answer / mageshwaran

it denotes the connection of primary & secondary winding of transformer, in which primary is delta connection and secondary is star connection with 30 degree phase displacement

Answer / banda saivarun

dny11 is of trnsformervector group

why current is denoted by I

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