Answer / gunasekaran

in this transformer is delta connected secondary so there
is no provision for earth fault protection so they are
using earthing transformer for earth fault protection.
another purpose it will reduce the inrush current it is
zigzag nature so its reluctance is more than ordinary
transformer so it is like that

How to calculate cable size for a particular load? i have 12 MW,11KV Motor 3 Phase, what should be cablesize? What are the points to remember for cable sizing calculations?

2 Answers  

---

what is the difference between neutral and earth?

2 Answers  

---

what kind of battery is used in laptops

4 Answers   Pepsi,

---

What is block diagram?

0 Answers  

---

What is the reason that the humming sound is coming from the induction furnace panel?

0 Answers   SKS Microfinance,

---

how the transformer stables out zone faults? Because we use non directional O/C relays .Is there any special considerations are taking into account to overtake this?

1 Answers  

---

why overload relay is not tripped at time of starting of motor allthough staring current is too high?

5 Answers   TATA,

---

how u select control transformer for a mccb panels or any panels?for expample we hav 440 volts maim supply and control volts is 230v?

0 Answers  

---

What is a system?

0 Answers  

---

what is the function of governor in dg set

1 Answers   Igarashi, Medispray, Reddy Labs,

---

if suplly 11kva its give 440volts then if suplly is given 10kva whats the volts given

3 Answers  

---

why a tester wont shock while testing the power in house

0 Answers   Tessolve,

---