Answer / suthar bharat

using vector group of a 3ph tranformer ,we can say that ,it
defined different phase angle between primary winding and
secondary winding. Like ,different group 0',30',-30',180'..

how would you come to know if a transformer is double wound or auto? note that there is no tag. you are given only a multimeter.

5 Answers  

---

What are insulation classes? Tell examples of each of them.

1 Answers   IOCL,

---

If a motor of 8.5 KW with same load and using in both Star & Delta one by one,then which will take more current in star connected or in delta connected

4 Answers  

---

Define active filter?

0 Answers  

---

How power cable & control cable can be differentiate from each other ?explain?

14 Answers   Aster, Finolex, TCE,

---

-How do you select cable size for a given load at a given distance from source of supply. How do you find voltage drop.

0 Answers  

---

What is PQA???Applications........

0 Answers   Emerson,

---

How big (size) can the tertiary winding be in transformer? Can we load the tertiary winding, if yes then how much we can load it?

1 Answers  

---

I have 4 DG set with 1500KVA rating. system breakers are 11KV & alternator are 415 Volts. Between alternator & breaker one stepup transformer used. i want to Know what is max. resistance for body earthing & 415 & 11KV V Neuteal earthing. my fault current is 14 times for 2 sec.

0 Answers   Jindal,

---

How much must be gape bitween 2 cable on cable tray?

1 Answers   El Seif,

---

Transmission voltage is kept 11KV,33KV,66KV,132KV,220KV due to form factor. What happen to 400KV and 765KV transmission voltage?

0 Answers  

---

What is the angle of inclination for the oil connection from transformer conservator to Bucholz relay and why?

0 Answers   Alam Group of Companies,

---