Answer / muhammed

first you calculat the load after that you calculate the current using this equation I= P/(ROOT3*V*POWER FACTOR)
after there is one cable selection table(available in google) using current rating check that cable and select the cable size

how to find value of resistance when 1 kw consumption for 10 minutes

1 Answers   Manipal Hospital,

---

what is the difference between LPF and UPF wattmeter and where it is used.

7 Answers  

---

Transformer calculation

1 Answers   Aramco, LMW Lakshmi Machine Works Limited,

---

what is S.T?specify the range?

2 Answers  

---

Wat is meant by OLTC?

1 Answers  

---

what purpose of the percentage impendance in transformer

3 Answers  

---

describe your self.

2 Answers   Amazon, Bechtel,

---

E.B sending end to receiving end 33kv ug cable laid 8Km,receiving end to ss1,ss2,ss3,ss4 all are Approx 800 Mtr,can go for 33KV to 430V or 33kv to 11kv in receiving end and 11kv to 430 near ss ,which one is good for technically and economically.

1 Answers   JLL,

---

what is the diffrantial relay???????why we use it on the MDB

5 Answers  

---

Mr. mohh sahid m not satisfied for ur answer to the que weather the size of transformer increases or decreases withchange in fr for more detail go to the answer given by me

0 Answers   Sail,

---

If we want the fan to consume less electricity at low speed, what do we have to do?

1 Answers  

---

what will happen if we pass a dc current through a ac bulb of 60 watt.The dc current is half ac one

4 Answers  

---