Answer / michael

depending upon the amps taken by the load, we should take
cable size. and the selection of cable size may vary for
copper and aluminum

Answer / pillay

1st you must know your load like
1)max load 2)distance of your load . than you must decide
how the cable is to be laid weather it is going to be
1)buried under ground 2)INSIDE TRUNKING 3)cable ladder or
any other means.than you must decide what is the type of
cable you want to use like copper or al than do you want to
add any factor for future demand.Finally with the help of
the cable manufacturers tables considering the voltage
ratings and the other factors the cable size is chosen.
mm2 and sq mm is the same.

What is the formula to calculate a three phase alternator

0 Answers  

---

what is the difference between surge arrestor and surge supressor

1 Answers  

---

Why ACB is used in LT why not in HT and why VCB is used in HT why not in LT

1 Answers   GE,

---

What are the layers of protection over armoured cables?

3 Answers   Accenture, IOCL,

---

How can we calculate the Rating of DG Set for a 4 kw motor?

3 Answers  

---

---

What conditions are required for transformer to operate at low frequencies ?

0 Answers  

---

how the reverse power relay acts..

2 Answers  

---

I decided to provide a 11KV / 440V Xformer in my Substaion. What are the protection required for that?

5 Answers  

---

How can we calculate ngr resistance for a generator and Transformer ? What type of transformer requires ngr ?

5 Answers   Welspun,

---

what happend if the protection ct is by mistake put instead of measuring ct & vice versa?

2 Answers  

---

In control room of our one plant there is a continuously the incoming power goes to PC is vary,means in stabilizer it continuously indicate from high input to low and low input to high. what is the reason and its solution.

0 Answers  

---

how to check capacitor in general

1 Answers  

---