How to select the cable size for the given load ?Pls
explain the Formulae
Answers were Sorted based on User's Feedback
Answer / sree
presuming, the unit of load is in HP(It is out put power)
output in KW= 735.5xHP(A).
Input in KW= A/Effy.(B).
Current= B/((1.732 * V * 0.7) (for 3 Phase star connected
load)(C)
Starting current= (1.5 to 2 times of full load current
(approx.)(D)
Based on cable catalague the size of cable will be chosen
as per above current rating(D).
or
Presuming the load is in KW(It is input power)
current=KW/((1.732 * V * 0.7) (for 3 Phase star connected
load)(A).
Starting current= (1.5 to 2 times of full load current
(approx.)(B)
Based on cable catalague, the size of cable will be chosen
as per above current rating(B).
| Is This Answer Correct ? | 1 Yes | 1 No |
Answer / vinay
Depending on amps rating.
A=P/V (for 1phase. P=Power in W, V=Voltage)
A=P/(1.732 * V * 0.7) (for 3 Phase)
| Is This Answer Correct ? | 6 Yes | 7 No |
Answer / jagjeet
Dear Mannu/ Vinay
Efficiency has to be considered for the system also.
| Is This Answer Correct ? | 1 Yes | 4 No |
Why we are using air gap magnetic condutors
What is the method of estamating of cable, CB,MCB ?
to vary valtage from 0 - max a variac is necessary . so how to design for high power applications nearly about 200KW power
Why we use shunt coil in breaker??????????
What is the PIU.
How to convert 2 phase to 3 phase electricpower in induction moter?
what is at/cm ?
difference between alternator & GENERATOR
what is circuit breaker in transfomer and where it used
Show formula which gives full load current 4.8 amps of a 3 HP motor and 27 amps of a 20 HP motor having 3 phase 460 volts, 0.8 Pf.
How should i design a 1ph & 3 ph transformer. Kindly let meknow all steps and formulaes related to design from scratch.
What is sink and source?
Civil Engineering (5086)
Mechanical Engineering (4456)
Electrical Engineering (16639)
Electronics Communications (3918)
Chemical Engineering (1095)
Aeronautical Engineering (239)
Bio Engineering (96)
Metallurgy (361)
Industrial Engineering (259)
Instrumentation (3014)
Automobile Engineering (332)
Mechatronics Engineering (97)
Marine Engineering (124)
Power Plant Engineering (172)
Textile Engineering (575)
Production Engineering (25)
Satellite Systems Engineering (106)
Engineering AllOther (1379)