Answer / muthuvel

In Transmission of Electrical Power,There is no need of Single Phase Output.The neutral is required where ever the Single Phase output is required.And If it is Star system means
we are required to give Three phase Four wire It is economically not good.So only Power System Always having Delta System in Transmission and Star System in Distribution This is very small basics of Transmission and Distribution System.

Answer / subbiah

Neutral is not necessary in transmission

Answer / saji

3 Pahse, 3-wire system is more economical than 3Phase - 4
wire system.

Answer / sounderraj k

To save cost, As Delta connection is three wire system
where as Star connection is four wire system. The neutral
point is made by local Earthing at distribution transformer
secondery end

what do you know about SERVOMOTOR

4 Answers  

---

what is linear motor?

2 Answers   Lucas TVS, wbsedcl,

---

how we decide wire gauge for ac or dc coil and what is the basic diff. B/w these two coil?

0 Answers  

---

Where earth point should provided in Ships or Submirines.

2 Answers   SSC,

---

Difference between MCC and PDB

3 Answers   BARC, CDS, NINL,

---

what do you mean by lagging and leading current.explain in detail.

1 Answers  

---

Alternator rotor earth fault relay circuit

0 Answers  

---

How to calculate earth wire load by formula

0 Answers   Caparo,

---

Why synchorised generators are used for the production of electricity?

0 Answers  

---

Why short ckt does not happen when solenoid coil connected to supply. as its a wire only.

1 Answers   Siemens,

---

What will be electrical cost per sqft for IT building (basebuild and fitout)and for residential township?

0 Answers  

---

what is meant by generator differencial protection?

1 Answers  

---