how to calculate the size of cable for 100 kva load,?can
somebody tell me with a formula
Answers were Sorted based on User's Feedback
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.
Is This Answer Correct ? | 18 Yes | 2 No |
Answer / prashant singh
KVA=uder root3*V*A/1000
A=Under root 3*415*KVA/1000
Is This Answer Correct ? | 22 Yes | 7 No |
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
Is This Answer Correct ? | 11 Yes | 6 No |
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.
Is This Answer Correct ? | 8 Yes | 3 No |
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.
Is This Answer Correct ? | 7 Yes | 14 No |
Answer / jiwanjot
i think something is wrong with question ...load can never
be in KVA it should in kw if we talk about motor.....
Is This Answer Correct ? | 5 Yes | 15 No |
Answer / mehul g. c.
if your load is single phase then you should use 3.5c x 185
sq.mm alu. Armoured cable.
Is This Answer Correct ? | 1 Yes | 12 No |
how to cal calculate capacitance in DC Circuit
What is minimum phase system?
Is there any other method of damping the oscillation in a synchronous motor other than using damper winding and if yes what is it?
Define noise?
What is d main advantage of using double circuit 3 phase transmission ?
How to improve fuel cell in a distribution system?
why the neutral point is zero in star connection?
How we calculate DC inducation moter Amp? Sir pls give me formula......
Corona occurs between two transmission wires when they (a) are closely-spaced (b) are widely-spaced (c) have high potential difference (d) carry d.c. power
in ceiling fan and table fan what is the rotating part and what is the stationary part?
why we are discharging h.t supply during shutdown time
what is open star connection or open delta.