Interested to Buy Any Domain ? << Click Here >> for more details...
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.
- 41 Answers
- 422233 Views
- Armco, BEL, BGS, Biocon, BRB Cable, Crystalline Chemical Industries, DLF, Doshion, Electrical, Gold Roof, L&T, Lanco, MEIL, Oman Cables Industry SAOG, PK Services, Polycab, Sabic, SLV, System Electrical, Tata Motors, UEM, UMIC, Vega, Vertex, Voltas, I also Faced
- E-Mail Answers
Answer Posted / bala
Hai
The formula is delda v =
rt3 x I X Z X L/ 1000 x no OF runs
% OF VOLTAGE DROPS = Deta v
------ X 100
APPLIED VOLTAGE
The % of voltage voltage drops should be below 3 %
I = Requird current
Z = Cable impedance
L = cABLE LENGTH
First how many Amp you required
Example - 80
then you go to cable catalouge find out suitable cable
size
then calculate original current carring capacity of that
cable and multifly with 0.72 ( derating factor )
example in catalouge may be 35 sq mm cable and current
carring capacity may be 125 A
125 X 0.72 = 90
The carring carring capacity point of view this cable will
be ok
next you will check voltage drop with help of above said
fomula
| Is This Answer Correct ? | 63 Yes | 31 No |
Post New Answer View All Answers
When the relative speed between the magnetic fields of stator and rotor does is zero under steady state operation?
In single phase ac ups supply when current is measured with tong tester neutral current is found more than phase current.What is the reason?
please give me solution to rectify the emi(electromagnetic interference)
why we need to us lenz's law for synchornous motor
IN dc capacitive reactance is??
who many types of fire explane with exmple
Can anyone tell the proper diagram of star delta starter????
how to i get B licence,i am completed BE electircal and electronics engineering.i want to konw the proceduure to get b licence
Why is tan-delta test and capacitor measurement done on alternator?
how point on wave controller works.
I Need standard operation procedure(SOP)for 500kva Oil type transformer oil filtration & Procedure for IR value checking.
if main CT is of ratio 50/5, and meter CT is -/5 what will be overall multiplying factor of meter.PT is 11000/110 .
Explain the advantages and disadvantages of hydropower plant?
What is dynamo?How it works and what is the function of dynamo in a DG.
Why should we hire you over the others waiting to be interview?
