Interested to Buy Any Domain ? << Click Here >> for more details...
3 phase supply is there Total kw 100 howmuch cable put the load
- 3 Answers
- 4887 Views
- I also Faced
- E-Mail Answers
Answer Posted / khaled shaban
you have to calculate your ampere by using below equ.
I=P/Sqrt(3)*V*P.F
after that you have to select circuit breaker; after selection of CB check cable size referring to cable ratings as per manufacturer.
e.g. Volt 380V, with 100Kw and consider P.F=0.8
current will be 190A
cable should handle more than 190A, but first you have to choose MCCB for this load; the standard for your selection should be as following:
MCCB size = I*1.25 (1.25 at least)
so MCCB will be more than 237.5A (for standard MCCB you will select 250A)
hence your MCCB is 250A, your cable should be more than 250A.
As per cable manufacturer rating in my country, cable size should be (3*120+70)mm2 laid in duct, but in case if this cable laid in ground; cable size will be (3*90+50)mm2.
| Is This Answer Correct ? | 4 Yes | 0 No |
Post New Answer View All Answers
Define coil span?
Hi I'm doing my MBA(3rd semester).I applied for the post of ET conducted by BHEL the last year.I cleared the written and lost in personal interview.Again I wrote the exam this time and cleared the written n yet to take the personal interview.Shall I disclose in the interview about my studies.What shall i say if they ask about my change from studies to job
How can we calculate the KVA rating of a Distribution transformer from its core details?
what is difference between window type and wound type transformers?where we will use window type and wound type transformers?
How relay works, reverse relay, master relay, os relay, earth fault relay and what is its setting point
how to determine motor size for a fan application?
What is the principle of HIGH SPEED DIRECT DRIVE MOTOR ?
Either the Armoured Earthing strip of HT 3 core cable have to pass through CB CT or not , why ???
Why reactors use before incoming of ac vvfd drive?
.php|
how to discharge 3 phase power factor correction capacitors
what is a types of short circuit and what is a types of distance protection tests
why the voltage and current in a long transmission line are called travelling wave?
if 6 earth pit value is 1.5 ohm then what should be the number of earth pit to make the value .8 ohm
What are the types of transformers according to the arrangement of iron cores?
