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

What are the types of excitation system?

1 Answers  

---

why America use 60HZ 110V?

4 Answers   Kalindee Rail,

---

How to calculate the value of capacitance of a capacitor used in power factor improvement plant if we know KVAR and voltages?

1 Answers  

---

can we ran equipment up to 10kw between phase to grounding/ earthing. beside above can we use grounding instead of neutral. .

1 Answers   TNEB Tamil Nadu Electricity Board,

---

If one lamp connects between two phases it will glow or not?

1 Answers  

---

STATE AND EXPLAIN SUPER POSITION THEOREM.

3 Answers   ABB,

---

what is the difference between indoor & Out door substations

5 Answers   HSBC,

---

Caliculate the Specific Fuel consumption of 320 kva diesel genarator set?

3 Answers   AllTech, RRB,

---

how to find the transformer effiiency

3 Answers   Bosch,

---

what is phase angle ? and also tells me why my phase-phase voltages are 390 rather then my single phase voltages are 221 and 223 respectivly?

2 Answers  

---

11KV electrical line going through the forest in cloudy night ,how can we find the direction of line.

5 Answers   Bhel, Cesco, HZL, Nesco,

---

what happens when we apply dc to a transformer

7 Answers   Siemens,

---