Answer / k.prakashchandra

HT side 28 SWG (CR 12A,Fc 18 A), LT side 2 of 13 SWG
(combined CR 260 A, FC 590 A)or 6x 18 SWG (CR 270 A ,FC
616A) The currents in HT is 10.5A and LT 267 A f0r 200 KVA
Tr.CR=current rating,FC= fusing current

Answer / nirmit

Just Forgot HT LT here i give formula for amp

If 66000v KVA/114180*1000= found amp
11000v kva/19030*1000
440v kva/717.95
how

kva=route3*v*i
1.73*66000*i
114180*i
2000=114180*i
i=2000/114180
=0.0175*1000
=17.15 amp at 66000v

What is spill current in protection relays?

1 Answers  

---

How can we measure earthing resistance test (Earth meggar) of Transformer neutral pit while in live condition?.

0 Answers  

---

Why we check only first column of root locus..?

1 Answers   IES,

---

Why Stabilising Resistor used in REF circuit ?

0 Answers  

---

I am final year b.tech student..i applied for gate but i am not interested any of my engineering subjects. i am interested in management wise.. is my option correct after b.tech..

1 Answers  

---

why the voltage and current in a long transmission line are called travelling wave?

0 Answers   UIU,

---

In electrical cables what is U and U0 refers?

11 Answers  

---

What is the basic difference between directional and non directional over current protection?

1 Answers  

---

Differentiate between ideal and non ideal current sources?

0 Answers  

---

diffance between eletrical and eletronics?

3 Answers  

---

What is the method of Tan delta test for power Transformes and why it is required.

1 Answers  

---

is starting current of induction is high or stating current of ransformor is hign ,for the same rating

12 Answers   BARC,

---