Answer / ramesh patel

Hi,
1. The distribution transformer is meant for 3phase 4wire
system and is for utilities where the fourth wire i.e
neutral is required by users for protection and control of
the switch-gears and power network.
2. Primary delta and secondary star connection prevent the
source side harmonics to impact the secondary side utilities.
3.No need to carry neutral wire of the 400VAC system to the
transformer, if primary is delta connected bcz only three
wire solve the purpose in delta /Star and neutral wire
easily connected to star point of secondary.

Answer / amritpal singh sidhu

We use the delta in primary & star in secondary winding in
distribution transformer, to take star point or neutral
point. Because potential is always zero at star
point...............!

HOW WE WANT 2 STUDY AERONAUTICAL?

5 Answers  

---

How many no of poles located in the right half of s-plane for the characteristic equation...

0 Answers   HAL,

---

Why you would like to join the aviation industry?

0 Answers  

---

Tell me how would you handle if your co-worker is not co-operating with you?

0 Answers  

---

how the Earthing point is taken for aeroplanes?

1 Answers   Air Force, IndiGo,

---

---

if you have valve with a fluid flow at a given psi, what is the stress to the valve?

0 Answers  

---

what is next number 1,4,60,120,210....?

2 Answers  

---

What are the three tactical elements of electronic warfare?

0 Answers  

---

What distance should be maintained between networking (data) cable & power cable if both cables are run in a seperate condute pipe parallaly?

0 Answers  

---

What are the different speed types of flows used in identifying Mach number?

0 Answers  

---

What are the major sectors involved in aircraft maintenance?

0 Answers  

---

Why is torsion such an important feature in aircraft engines?

0 Answers  

---