Answer / govardhana rao.p

Calculations are same as above but for 50A load

We can use the bellow cables

Aluminium: 50 x 3.5 Core

Cu : 16 x 4 Core

Answer / sabu

in case 50amps 230v single phase load we can use 16mm aluminium and 10mm copper

Answer / zafar

the answer is not correct the correct figure is 25mmsq

Answer / bipin naik

The current will be 27 A for single phase supply(230v)

Answer / fathi

2x10 sqmm Cu/XLPE/PVC 600/1000 v

Answer / engr.muhammad younas khan

SINGLE PHASE FORMULA FOR CABLE SIZING.

REQUIRED DATA:-
I :- AMPERES
L :- LENGTH OF CABLE.
K :- CONDUCTIVITY OF COPPER(58)
:- CONDUCTIVITY OF ALUMINUM (36)
Vd:- VOLTAGE DROP.

GIVEN DATA:
I:- 50 AMPERES.
L:- 100 METERS.
Vd:- 3% ACCEPTABLE OF 230 VOLTS

FORMULA:-
AREA (mm2)= 2*I*L/(K*Vd)
= 2*50*100/(58*6.9)
= 24.98 mm2
= ALMOST 25 mm2
FOR THREE PHASE:
AREA(mm2) = 1.732*50*100/(58*12)
= 12.44 mm2
= ALMOST 15 mm2
3% voltage drop of 400 volts =12 volts.

ABOVE EXPLAINED FOR IS PROPERLT CORRECT.USE AND ENJOY.

ENGR.MUHAMMAD YOUNAS KHAN
M.SC.ENGG.MIEE(UK)
WAZIRABAD CITY,PUNJAB, PAKISTAN
DATE:- 24/3/2014

Answer / selvakumar

230 meter cable

Answer / lorp soophan

S=(2.l.i.cosg)/V%

Answer / vinay katoch

formula is same but for 50 amp load we can use 3.5c
25mmseq.all.and 10mm seq.cu.

Answer / gurunadharaov

by the formula p=v*i*cos@
assume the load as 5kw and operating at 230v and also
assume the load as inductive (so the power factor is 0.5
pf lag)


now by formula
5000=230*i*0.5
i=50A
NOW CABLE SIZE MUST BE > LOAD
SO CABLE SIZE IZ 65SQMM(ITZ DSSEPEND ON AL/CU CABLE)

Can 33kva/415v transformer be run underground? If the answer is yes why and if the answer is no why?

0 Answers   4T Technologies,

Is phenomenon of resonance is harmfull fr the machine? if not or if yes please explain it?

0 Answers   Bhel,

in case of three phase induction motor,when it is connected to three phase supply,why the magnetic field is rotets around the armeture?

5 Answers   Hindalco,

WHY HVDC?

3 Answers  

Does the Impedance of the source affects the THD

1 Answers  

define the power factor in one word

12 Answers  

7. Why AC motors, AC bulbs etc... are donot operated by DC signals? and Why DC motors, DC bulbs etc... are donot operated by AC signals?

2 Answers   Bhel,

when ac current flows thru d coil of a contactr,it energizes,magnetic field attracts d contact of the coil...nw wont dt ac current in d contct induce current back on to d coil thru mutual inductance leading to high currnt in d coil

0 Answers  

What is the difference between online ups and offline ups?

44 Answers   Electrical Tech, GMR, Gravity India, HCL, Indus Towers, NIT, Pyramid, Techno Electric and Engineering, UBS,

Explain what is electric traction?

0 Answers  

We have 2 no. 4MW DG set. and GEB supply. But, we running, only 1 DG set. when we done APFC/Power factor setting : 0.90, then winding temp. Low. but when setting done : 0.83, then Winding temp. increase. WHY Why ? ? ?, plz give me answer.

4 Answers  

Define active and passive network?

0 Answers