I want formula to calculate cable size as per load given in
kw & amp.I searched many sites but didn't right answer.Plz
reply me asap.
Answer Posted / premgin
See dear the basic soultion to cable size calculatiion in
sismple form can be done like this
Vd= ( mv* I * lenghth)*100/(400*1000)
I u can calualte from the Kw value for the particular pf
simple P/554
L required length
mV is the volatage drop/amp/km that can be obtained for the
particluar size of cable from supplier
eg. for 4cx16 its around 2.5 for most suppliers
100/400 is just amultiplication factor for converting it in
to 3 phase
Now do calulation and check if voltage drop limit is below
2.5 or 4 as per your standards
Simple.
But be cutious this is the simplest method and suitabel
method,many factors like grouping factor,derating
factor,spacing factor,type of laying,etc has to be taken
for apt analysis
Software like E Tap can also be utilised
Is This Answer Correct ? | 59 Yes | 43 No |
Post New Answer View All Answers
Why induction motor is widely used in industry
TCS IS IT COMPANY THEN WHY DO THEY NEED ELECTRICAL &ELECTRONICS ENGINEERS?
Is a direct shorth ciruit on a branch MCCB in a Low Voltage Switchboard a correct means of tesing the performance for discrimination?
What is the relation between frequency and motor rpm?
TRANSFORMERS WITH DC SUPPLY
a battery is having capacity 100AH and 25% charging .if a load taking 10A & connected 6 hour .what is the final condition of the battery.
how r charge carriers produced
Explain dc generator with its types?
1)we have 1000 cfm Blower,Dia-1Mtr,Velocity of air 94 m/s 2)We have Natural Air velocity 94m/s 3If i Put Wind Mill in natural air ,speed is 94m/s Then it will generate Assume 100kw 4)If i put same wind mill across the Blower,air speed is same 94m/s now the Question is Will it generate 100 kw?
is there any chart showing the suitable cable size according to AMP and length ? for three phase motors
what is relay what is protection & contact multiplying relays where it is used function in brief
what is the function and use of cable differential protection relay?
How will change the frequency in distribution side?
how to calculate compresor capacity?
ACCORDING TO IEC WHAT SHOULD BE THE MINIMUM HEIGHT OF G.I. STRUCTURE OF CT, PT, ISOLATOR, LA?