Answer Posted / a v prasad

not only the above reasons guys....
.
but also the following.
.
Y-D Transformer is preferred as most economical rather than
the both . reason: D side always preferred low voltages as
it has Vph = V line to line. it want more turns ans more
insulation to get that line to line voltage ..

similarly Y side high voltage can be used as phase voltage
is much less than line voltage, takes less turns and less
insulation to get required line voltage

what is formula for zero phase sequence of nuetal earthing transformer of 6.6 kv

2297

---

Write the analogous electrical elements in force voltage analogy for the elements of mechanical translational system.

1358

---

In India the supply voltage is 230 volt A.C. During the negative half cycle phase becomes neutral and neutral become phase? or what will happen during negative half cycle? how the electrons flow during positive and negative half cycle?

2022

---

what is the power rating of CPU, CRT type moniter, LCD type moniter,scanner Approx.

2208

---

what is servo motor and how to work it.

1933

---

How to Calculate The sag of OPGW in Transmission Line???

3134

---

What the main causes of transient interruptions on Over-Head Distribution Lines?

2159

---

What is the minimum underground tank size capacity considered for firefighting purpose?

1965

---

what is the difference between Power and Distribution transformers ?

2162

---

Is electro plating what type of load whether resistive, inductive or capacitive loads

3330

---

How to Decide the Location of Earth pit for Compressor in Oil Depo? and How to measure the resistance of earth pit Pls explain me with the help of Circuit Diagram?

2516

---

Compare jfet’s and mosfet’s.

1291

---

what is the use of current transformer in power transformer secondary side.?its connectyed in WTI

1737

---

xfhnchncv?

1922

---

can someone explain that how the speed of the protection system affects the fault level calculation?

2104

---