Answer / eng. d

first, how will you install it?
underground direct buried, inside trenchs or above ground

any ways, the way to calculate will be done by the cable
vendor but you can do rough estimation
for 2.5 MVA transformer
= 2.5MVA/(1.73*33KV)=43 A

then cable shall be derated and much more than transformer
then we can say we select 60A cable rating
then we go to cable vendor catalog
try to see this
http://www.doncastercables.com/cableCalculator.asp
thank you

Where -48 volt DC use & why?????????

10 Answers   Ericsson, INDUS, Indus Towers, Telecom,

---

What is maximum permissible length of cable from transformer (33kV/0.433kV) HT side to HT panel which contain VCB? In which standard i shall get this information.

6 Answers   MSEB,

---

which are the criterias needed to select the kind of neutral earthing(solid earthing,resistance earthing,etc.) at various voltage levels in electrical distribution?

0 Answers  

---

What is the difference between electrical earthing and electrical grounding?

0 Answers  

---

Why capacitor blocks DC current?

2 Answers  

---

What is flow meter?

2 Answers  

---

what bridge circuit is used in Tandelta circuit

1 Answers  

---

Thermal withstand capability under full short circuit conditions, in terms of number of times of occurrence of short circuit and corresponding anticipated percentage reduction in transformer life.

0 Answers  

---

Is it good to short Neutral and Ground in the PLC or DCS main Power supply. Pls give YES or NO with reasons...? Simarpreet

0 Answers   Bindal Papers,

---

why should small green grass ans small plant should not be there inside the transformer Yard in the factories

0 Answers   Riddhi Siddhi,

---

Is it posssible to obtain the higher speed(3000rpm) for adiferentiallly cascaded induction motors(with 8 and 6 poles)

3 Answers  

---

what happens when the phase and earth wires comes in contact? and why

2 Answers  

---