Answer / sudhakar g

First you have to caluclate the load of the T/F i.e
KW=KVA*p.f
KW=500*0.8=400KW
I=kw*1000/1.732*415v*0.8
I=696.74 A
Based on these we can choose the Cable size ....
suppose the LT AL cable of 3.5c x 400 sqmm will give 530 A
of polycab....if we go for two runs of 400sq.mm means it is
good and the breaker size we will go for 800A ACB bresker
means it is good....

I am taking Electrical desining classes in Bangalore...It
will be usefull for designing as well as site engineers
those who are intrested to go for Electrical
Engineers....we give you indepth knowledge of Load calu,
Cable sizing, Lighting cal, panels, breaker
selection,Autocad drawing....if any body intrested means
pls call to +91-7760362623 or sudhakar28485@gmail.com

Answer / brijesh kumar

kindly give full answer

what is inverter and converter

0 Answers   Hindustan Syringes and Medical Devices,

---

SSC JE ELECT.

1 Answers   CPWD, SSC,

---

Is RTCC panel needs any control supply.

0 Answers   HPCL, Schneider,

---

define ac reactor? thier application;

1 Answers  

---

why do we lay up the core of a cable?

0 Answers  

---

---

when secondary volts is given how do we find primary volts, turns, amps of primary and secondary given???

1 Answers  

---

why usa use 60hz and 110v?

2 Answers  

---

Thumb rule of cable size(rm>30 rm)X multiplying factor=ampere

0 Answers   Kazi Farms, SKI Carbon Black,

---

what is the difference between PLC and embedded system

3 Answers  

---

what is Ith current?

4 Answers  

---

can we use ELCB and RCBO in one db

6 Answers  

---

How to take vector group test of a transformer? Suppose we dont know the vector group of transformer, how to check its vector group through test? I have 3 transformer DYn11 & DYno& Ynd11, how to confirm its vector group?

1 Answers  

---