Answer / iamdon

The primary and secondary windings are used for normal
voltage/current transformation where as the tertiary
winding is used for following special purposes

1)Supply to substation auxiliaries.
2)Connecting static capacitors/synchronous condenser etc

The tertiary winding is connected in delta to allow the
flow of zero sequence current in the tertiary loop in the
case of unbalance.

Author:arbelectbit@yahoo.com

Answer / gunasekaran

the above answer is correct another one is keep the neutral
should be zero potential and it is giving closed bath for
third hormonics current

WHAT IS THE FULL FORM OF CABLE TYPE-AYWY,AYWAY,YWY ?

6 Answers   Polycab, VIR, XLPE,

---

what is the formula for calculate the turns in Transformers

2 Answers  

---

how to test vector goup of Dy11 transformer

1 Answers   APPSC,

---

what is gridrotor resistance starter

0 Answers  

---

why use celling fan wing is two or three ?

2 Answers  

---

---

What is the deffirant between EARTH, GROUND AND NUTRAL

4 Answers  

---

What are the different circuits in thermal power plant?

0 Answers  

---

what is over cureent protection

3 Answers   Anil Group, MPSEB,

---

What is meant by field loss in a DC motor?

1 Answers  

---

Why (In India) we preferably go for +-30 deg connection of transformer? what are the advantages in this connection?

2 Answers  

---

I have tow 200 KVA UPS, both are in parallel mode.My question is that, both are running on battery when power fail, if one of them fail (Eg rectifire fails or some other reason), at thet time reverse power will come to faild ups if it comes then it will harm to failed ups or not? if not then how it protects to faied ups????????????????

1 Answers  

---

how we calculate electricity unit ( meter unit.. for knowing how many charges) from on motor load.?

2 Answers  

---