what size generator?

laptagal


Joined: 28/05/2008
Posts: 549

Message Posted:
20/09/2009 13:16

Hi helpful members. Can anyone tell me what size generator we would need to run a fridge freezer, television and a couple of lights - in the event of a powere cut?

Thanks x

Smity



Joined: 14/09/2009
Posts: 826

Message Posted:
20/09/2009 13:29

Yes you will probably get away with a 3KW (3KVA). But make sure the extension lead you use is not left coiled up this will cause inductance which in turn causes heat , which will melt the insulation on the cable.

But the bigger KVA you can get the less harder the genny will have to work I would personaly go for a 6KVA



Good luck

Hippo


Joined: 02/02/2007
Posts: 2070

Message Posted:
20/09/2009 13:31

4.5 to 6 is more than adequate they were on sale for c450 sterling chinese made .we have had ours for three years now.

yrys88


Joined: 08/08/2009
Posts: 1140

Message Posted:
20/09/2009 22:50

Hi Laptagal,



3KW should easily cover it..



We have one for sale that will do the job:



Go to http://cyprus-buy-sell.com/product_info.php/cPath/28/products_id/53



Email yrtrnc@yahoo.co.uk or call on 0533644330 with any questions



Thanks

Yen

yrys88


Joined: 08/08/2009
Posts: 1140

Message Posted:
20/09/2009 22:51

List of all models just incase



http://cyprus-buy-sell.com/index.php/cPath/28



Thanks

Yen

elko2



Joined: 24/07/2007
Posts: 4400

Message Posted:
21/09/2009 00:01

3 KVA should be enough for the stated loads.



msg. 2

Smity wrote: "But make sure the extension lead you use is not left coiled up this will cause inductance which in turn causes heat , which will melt the insulation on the cable. "



Very true but for the wrong reason! A cable heats up which depends on the length, diameter and load. It generates the same heat whether it is coiled up or not but when coiled up all the heat is concentrated in one spot and hence causes the temperature of the cable to rise. The "inductance" of the cable does not change whether it is straight or in a coil because the current that flows in the live wire comes back in the neutral wire and cancels out any magnetism and hence no increase in inductance. Even if there was an increase in inductance (which is not true), it would have caused a drop in voltage but would not generate any extra heat due to increased inductance unless the coil is wound round some iron.



Sorry about that, I could not resist it

ismet

Brinsley


Joined: 04/04/2009
Posts: 6858

Message Posted:
21/09/2009 00:29

Ismet



That explanation to the uninitiated, sounds like some story coming out of the mouth of an Advocate!



Richard

kibsolar


Joined: 14/09/2008
Posts: 552

Message Posted:
21/09/2009 01:35

1kw will do it.. assume: 300W fridge/freezer - (startup maybe 600W for a few secs), a TV will be rough 300W so 400W left for the lights... as the small and cheap gennys do not run on lower rpm, they will not adopt to load changes.. they run and produce in full.. so you you will only save fuel with a smaller genny.. go as small as you can.. but if you want to extend, you need a bigger one.. anything between 1kW and 6kW will do.. deppends now on what you need/want ?? good luck..

ismet; top explained! now I know...

TRNCVaughan


Joined: 27/04/2008
Posts: 4578

Message Posted:
21/09/2009 08:49

Get as big a genny as you feel you can afford. Avoid small diesel models as these are v.noisy.

elko2



Joined: 24/07/2007
Posts: 4400

Message Posted:
21/09/2009 08:54

msg. 7

Richard,

I was wearing my Engineer's cap. Anyway, who is the advocate, do I know him?



ismet

rigsby


Joined: 21/09/2007
Posts: 912

Message Posted:
21/09/2009 11:55

Dont buy a chinese one,Aksa is a very good Turkish company,they make genny,s for caravans and towns.Or a genpower supplied by Asel engineering.

TRNCVaughan


Joined: 27/04/2008
Posts: 4578

Message Posted:
21/09/2009 12:08

Hi ismet,



I think you were wearing your engineers anorak!