Answer / nitin khatana

D stand for hv winding in delta and y stand for lv winding in star.
11 stand for 30 degree lead.
and Dy5 means D stand for hv winding in delta and y stand for lv winding in star.
5 stands for 150 degree lag.
The Dy5 is not a legal 3 phase connection. it is obtain from Dy1 connection by change the connection of lv star winding star(form star from a1b1c1 to a2b2c2 to form Dy5 connection)

What is the relationship between voltage,current & frequency?

0 Answers  

---

can we do the star delta connection of capacitor for 3- phase motor starter.

0 Answers  

---

Damping resistor provided in open delta (tartiary) winding of a measuring PT at the incoming of a MV inverter drive panel is getting heated up. Can any body explain the reasons and suggest the remedy?

0 Answers   Danieli,

---

What are the different types of cable jointing methods for HT and LT power cable?

1 Answers  

---

for what purpose the star point is done in ct

0 Answers  

---

---

In case of delta/delta transformer if the one phase is blown out then what will be secondary line voltage ?

4 Answers  

---

how do find power factor in practically and what it means?

3 Answers  

---

Based on what the rating of machines are provided??(ANswer should in single word)

19 Answers   Asian Paints, Bhel,

---

Why one can experience electrical Shock due to Voltage or Current?? or both voltage or current??

11 Answers  

---

In single core cable, Why non-magnetic material is used??

1 Answers  

---

Battery is a voltage source? give one example of current source and why?

0 Answers   Suzlon,

---

Name different types of circuit breakers and their voltage ratings?

11 Answers   NTPC,

---