Answer / ankamsreekar

a vector group is the International Electrotechnical
Commission (IEC) method of categorizing the primary and
secondary winding configurations of three-phase
transformers. It indicates the windings configurations and
the difference in phase angle between them.[1]

The phase windings of a poly-phase transformer can be
connected together internally in different configurations,
depending on what characteristics are needed from the
transformer. For example, in a three-phase power system, it
may be necessary to connect a three-wire system to a
four-wire system, or vice versa. Because of this,
transformers are manufactured with a variety of winding
configurations to meet these requirements

Can We Apply DC POWER To Transformer???? And Why????

4 Answers  

---

Define corner frequency?

0 Answers  

---

Whether the LIGHTNING is AC or DC?

9 Answers   Bhel, IEEE,

---

Hi, i want to know is meant by power quality? How it can calculated ? How we can improve?

1 Answers  

---

What is bushing?

4 Answers  

---

Hi Friends pls give information regarding BARC written test. am attending by 20-5-2008. mail me to kkumarei@gmail.com or message to 9962122264

2 Answers   BARC,

---

what is meant by flywheel and its role in retardation test

0 Answers  

---

how to connect from a line-to-line connection to a line-to- neutral connection?

6 Answers  

---

why exterrnal C.T. protection is used even though ACB& VCB is having inbuild C.T. protection?

2 Answers  

---

what difference beetwin phase voltage & line voltage and phase current& line current ?

1 Answers  

---

why we do occ & scc test in transformer ?how we can do it ?

2 Answers  

---

I have cleared IOCL written exam(Electrical). My intv is on 6/9/2008.can anyone guide me & tellme abt intv questions.

5 Answers   IOCL,

---