Interested to Buy Any Domain ? << Click Here >> for more details...
how calculate cable size in squre mm, when the load is
given by in kw? do u have current rating chart of elctrical
cables?
- 4 Answers
- 12512 Views
- I also Faced
- E-Mail Answers
Answer Posted / shahidul islam (srabon)
When the power is known in kW then the formula for knowing
the current in A is I=(P/(sr(3)*V(phase)). Now we the
current. After finding the current we know that the current
density of copper is 2.5. Finally to calculate the cable
isze we apply the given formula in practice.
I=A*2.5
so, A=I/2.5 (in square mm)
Where A=Area of conductor or here cooper is used
A=w*l
w=width
L=length of the conductor
Hope the answer of the question
| Is This Answer Correct ? | 2 Yes | 2 No |
Post New Answer View All Answers
can a 150 kva 3 phase 440v/230V delta-wye step down transformer can be use as step up transfoermer with connected loads at 440v side?
HOW WE CAN REDUCE THE CIRCUIT COMPLEX OF STAR-DELTA STARTER .BECAUSE NOW WE USING ONE TIMER RELAY & THREE CONTACTOR FOR MAIN,STAR & DELTA ?IF ANY IDEAS PLZ POST.THANK U
are there rmu for 3 transformer?
A system absorbs 100 k J of heat and the increase in its internal energy is 100 kJ; the work done is
What is your acheivements
How two nos. 130 kw D.C motor get synchronise using D.C drive.
I have motor 1500 HP and , 4160 V , 60 HZ , then i need the rating of transformer which can feed that motor ??
What is the complete procedure of erection of electrical panel in industry
What is Scheme Test of High Voltage Switchgear. Which tests it includes.
what is negative d.c. voltage, why this voltage is used in base transciever station.
WHat is the requirement of installing FAST ACTING EARTH SWITCH in GIS and how is that integrated with protection system. How and when does it operate?
Which thing is maximum in RLC circuit at resonance a)power consumption b)inductive current c)capacitive voltage
what is the benefit of floating our DC source? if i have two floating DC source of which 1 has a ref voltage of -21VDC and the other of -18VDC. can it be connected in parallel to share a common ref voltage? if not, how do i make both sources to be of common ref voltage? tks
What is a single phase autotransformer?
Where I can get the sample question for post of Junior engineer electrical-II For RRB Bhubaneswar.
