Answer / virendra

Considering Powe factor 0.8
Kw = KVA*.08
KW = 100*0.8
= 80 KW
w = 1.73 * 415 * Il * 0.8
80000 = 1.73 * 415 * I1 * 0.8
I = 80000/ 1.73*415*0.8
= 139 Amp

You can choose the cable which current carring capacity per
phase is on or above 140 Amp

By considering the future expansion of load the 180 Sq.mm
AYFY cable is ideal.

Answer / prashant singh

KVA=uder root3*V*A/1000
A=Under root 3*415*KVA/1000

Answer / abdulsubur

WE CAN GET FROM THIS REALTION
KVA=KW/KVAR
100*85=85KW
THEN FIND CURRNET FROM P=ROOT 3 VICOSPHI FORMULA THEN FIND
CURRENT AND THEN LENTH FROM THE MV=VD*1000/L*I

Answer / brijesh shakya

Before calculating size of cable, phase & voltage should be
clear then after we can calculate the current of load by
this formula
P=root3*V*I
I=P/(root3*V)
Accodingle we can select the size of cale.

Answer / jack

Depends on what voltage you working with.

P = V*I

You got P and V, find what your I is.

Then use a cable selection book from, eg. Olex, choose your
cable from there.

Answer / jiwanjot

i think something is wrong with question ...load can never
be in KVA it should in kw if we talk about motor.....

Answer / mehul g. c.

if your load is single phase then you should use 3.5c x 185
sq.mm alu. Armoured cable.

Circuit diagram of tube light without starter using electrical choke

0 Answers  

if its possible for step up or step down DC volage directly ? possible means how we can do it ?

5 Answers  

what is the difference b/w circuit breakers and relays?

3 Answers  

If there is volagte between earth and neutral, what should be the reason ? and solution * What should be allowable limit in case, if the voltage between earth and neutral exist ? / OR what is limit for safe voltage between earth and neutral?

3 Answers  

an electric bulb or lamp can operate on ac and dc, if yes then why

5 Answers  

why rating of generator is kva but motor is kw ?

4 Answers  

in three phase 11kv transformer (11kv/433v) input( R,Y,B) output (X,Y,Z,N) the connection as follows 1 phase R -open 2phase y connected to both R and y of input] 3phase B- B what is the output voltage X to N ,Y to N , Z to N

2 Answers   Bescom,

regarding safety what would u consider the most important rules to observe when inspecting electrical equipment?

0 Answers   Reliance, Southco Utility,

can any one know is sbi interview based on merit or based on roll number

0 Answers  

if we convert watt into kva,which one formula use by us,pls tell me?

16 Answers   ABB,

what is alternater?

8 Answers  

i am completed my degree(B.E EEE) 2014 anychance to get electrical licence plz help me

0 Answers   JLL,