what is formula for zero phase sequence of nuetal earthing transformer of 6.6 kv

0 Answers  

---

What's an AVR? What's its purpose in Generators?

4 Answers  

---

how to calculate the output power of vfd , please help me.

1 Answers  

---

How is The split core current transformer working ?

1 Answers   Honeywell, NCC,

---

What core magnetic balance test of transformer? How to do this test in a three phase Star delta (star-LV, Delta-HV) transformer? How to measure and where to measure? thanks and regards Austin

22 Answers   Neutech, Power Grid, TSSPDCL,

---

what will happen if delta - star , 400V to 6.6KV step up transformer neutral is not grounded, Neutral is not used but transformer is provided with neutral.

2 Answers  

---

When both contractor star & delta is hold in star delta motor ?? So what happen in this case ??

1 Answers  

---

how can calculate static 3phase 4wire CT & PT operated energy meter constant when calibrating using refference meter suppose we have 11kv/110v PT and 30/5A CT, the meter constant is 160imp/kwh, where meter is showing MW energy? give me solution which constant i feed in my refference meter for calibration of energy meter?

3 Answers  

---

which phase is preferred for connecting 1 phase vt used for synchronizing OHL? WHY?

0 Answers   Siemens,

---

Main advantage of auto transformer over two windings transformer is that A it needs no cooling B it uses only one winding C core losses are reduced D it has simple construction

0 Answers  

---

How feedback transformer works to feedback power in Slip Power Recovery System

2 Answers  

---

Why the magneti fields are not passes from southpole to north pole

0 Answers   SGML,

---