Answer / bala.a

Hai
its is very simple
load=10 HP
10 X 0.746= 7.46 KW

7.46 X 1000/ ROOT 3 X 0.8X 415= 12.97 A= 13 A

So our require cable shouls be withstand 13 A AT full load
condition .

u will reff any one cable manufacture catalouge which
cable suitable for the same load . but that cable to be
suitable for Appx -18A because u will consider the
derating factor for cable .

Answer / santosh

Sqmm of cable depends upon the cable material.In thumb rule Cu cable can carry 10-12 times of its rated sqmm.For ex 10 sqmm cu cable carry 100-120 amps.Al cable carry 4 times current of its rated sqmm

For ur problem: 13A is rated current. 50-60 amp staring current,7-8 running cu.So u may need 4 sqmm Al cable or 2.5 sqmm cu cable.

Answer / anil

Sir, it is simple 10kw motor will take 14 amp current in
normal running of motor but at starting shall take about 5-7
times more in case of induction motor. so we will consider
the cable accordingly

Answer / charan

fine buddy, what i want is how the manufactures is deciding
that Sqmm of the cable ??

WHAT IS A COLOUR CODING OF 3 CORE CABLE

11 Answers  

---

For refrigerators the motor current is raised beyond its rating on both conditions when the voltage of the system is more(say 270v) than the rated voltage(220v) as well as when the voltage of system is less(say 160v) than normal voltageof 220v, why explain?

0 Answers   Electrical Tech, UPSE,

---

checklist of ELCB

1 Answers   EECE,

---

why diesel tank is earthed

1 Answers   ABB, NTPC,

---

for hipot test on 33kV busbar, we will test on 70 kV or 56kV, what is the acceptable leackage current?

0 Answers  

---

What is the difference between ARC & SPARK?

4 Answers   OPTCL,

---

what perpose of use CT ratio in gt,st,uat

1 Answers  

---

When a square wave is applied to primary of a transformer then what will be output wave form of secondary ?

0 Answers  

---

Draw torque - speed curve and load curve of induction motor? mark operating point ?

0 Answers  

---

If stator & rotor of a 3-phase induction motor have different no. of poles, will the motor run or not??

3 Answers  

---

break down of electricity is more in summer or in winter ? give reason

4 Answers  

---

1) Explain why we don't link the two earthing system ht and mv on a pole mounted transformer sub-station.

0 Answers  

---