Answer / mprajaneb

NO. Normally for distribution purposes the utilities are
using Dy transformers. Hence the zero sequence current
produced by the consumer side fault is not transfered to
the High voltage side.
The earth fault current in the LT side is circulated from
the fault point to the Dy transformer neutral and the
faulted phase.

What is the purpose of lighting Transformer used in Industries for Lighting illumination? Its necessary or not?

2 Answers  

---

WHAT IS SYNCHRONISING?

8 Answers   L&T,

---

A motor works on 30 killo watts.how much ampers will be required if it works on 440volts?

5 Answers  

---

How to select the cable and voltage drop in circuit?

0 Answers   DEWA,

---

One watt is equal to how many? we says one watt bulb,means what it consume?

3 Answers  

---

If u take a kWh reading in 11 kV HT and 440 LV side at same time in yesterday today , then why LT consumed units 3-4℅ high as compared to HT units

1 Answers   Brigade,

---

How to calculate the Efficiency of Chiller

0 Answers   Knight Frank, L&T,

---

what is the function of rccb how it diffrentiate between elcb

1 Answers  

---

i need list of swg(standard wire guage) or area of conductor v/s current carrying capacity of conductor copper & alluminium...

0 Answers  

---

wat is the criteria we use the diff. relay ?

2 Answers  

---

why neutral busbar size is half of the phase busbar size in control panels

1 Answers   IBS,

---

how will protect transformer agint overcurrent protection

6 Answers   MPSEB,

---