Answer / bhatt

current carrying capacity of conductor depends on many
factors,
size, shape and material of the conductor, ambient
temperature, insulation and laying method:
As area of the conductor increases current density is
decreasing hence 2.5 times per sqmm. for coer and 1.5 times
per sq.mm may be alright for smaler size conductor but at
400 sq.mm. it may be only around one time as perimeter and
area also affect the current carrying capacity.

Answer / alok

For copper core conductor: Current carrying capacity is
around 2.5 times of its area e.g. for 10 sqmm area conductor
current rating is 25A

For Aluminium it is around 1.5 times of its area.

Answer / c.rajesh

generally current carrying is depends on resistance of
conducting elements but we now pure conductors are not exists
so internal resistance is considered now calculation is made
as resistance directly proportional to area of conducting
element R=l*a/s
here l=length of conductor
a = area
s = specific conductance

I have 4 busbar of 1000 ampere. we use 4 busbar to make 4000 ampere in one phase.my problem is that when we applied 60% load on that then busbar produced high noise.what is the reason of that and how can i minimize that noise.

0 Answers   College School Exams Tests,

---

What are your personal skills and abilities for such a Master Course and your possible preparation to undertake this course?

0 Answers  

---

What is thresh hold value of current?

0 Answers  

---

What is NUMBER OF RUN for power cable means?

4 Answers  

---

what is the difference between KW and KWh?

9 Answers  

---

plz tell me about BACK emf and how it generates?

2 Answers  

---

If SFU is Switch Fuse Unit, What is the expansion for FSHF in Electrical Engineering?

0 Answers  

---

why inductancce of armature inductance of dc machines is neglected?

2 Answers   APPSC,

---

Why Human body feel Electric shock ?? n in an Electric train during running , We didnt feel any Shock ? why

13 Answers   Lovely Professional University, NTPC,

---

 where the Motorized mccb to be used? In Motor control center panel starters ,it is use full. please answer  

1 Answers   Voltas,

---

what are iron and copper losses

4 Answers  

---

SUTIABLE FOR ohm's law super conductor

0 Answers  

---