Instyle LED Lighting Specialists UK
This official sponsor may provide discounts for members

Discuss Calculate power consumption in the Electrical Forum area at ElectriciansForums.net

A

ashokkumar8226

Welcome to ElectriciansForums.net - The American Electrical Advice Forum
Head straight to the main forums to chat by click here:  American Electrical Advice Forum

Hi,

i have projector voltage is 110-240v and max power 300w what will be the consumption of power in one hour and what is the load it requires.

Thanks & regards
 
Electrical2Go - Online Electrical Supplier
This official sponsor may provide discounts for members
1000w is about 4.2 amps at 230v
so about 1.3 amps
cost to run at say10p per kwh
about 3.5p an hour/84p for 24 hours
basicly not very much
hpoe this helps
 
D

DanBrown

  • Thread Starter Thread Starter
  • #3
1000w is about 4.2 amps at 230v
so about 1.3 amps
cost to run at say10p per kwh
about 3.5p an hour/84p for 24 hours
basicly not very much
hpoe this helps
Mark, could you please explain where the 1.3 amp comes from?
and also the 3.5p an hour?.

Thanks
 
N

Nenedata

  • Thread Starter Thread Starter
  • #4
Mark, could you please explain where the 1.3 amp comes from?

He's basically simplified calculation by using the figure of 1000w and then used the % of 300w from 1000w thus being 30%. 30% of 4.2amp is 1.3amp.

Mark
 
G

Guest123

  • Thread Starter Thread Starter
  • #5
Hey Dan.

the 1.3 A is the current used by the 300W load in the original example - 300W/230V - 1.3A, power triangle.

Then divide 1 kwh by the 300W load to get a sum of 3.33p per hour roghly rounded up to 3.5p.

Hope this helps.
 
no bother mate i only wish i understood the phasor/vector stuff on the therory help posts:confused: i qualified in 94 and that sort of thing is long gone.
sorry for hijacking this thread
 
G

Guest123

  • Thread Starter Thread Starter
  • #9
Ne bother.

It is amazing though how much we were taught and how much we actually use in day to day life. Forgetting it is a dam sight easier than learning it ever was and trying to remember it again is even worse.

Cheers.
 
SuperlecDirect - ElectriciansForums.net Electrical Suppliers
This official sponsor may provide discounts for members

Reply to Calculate power consumption in the Electrical Forum area at ElectriciansForums.net

Electrical2Go - Online Electrical Supplier
This official sponsor may provide discounts for members
Top Bottom