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Old 5th August 2009, 03:46 AM   #1
JinMTVT is offline JinMTVT  Canada
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Default how to 60hz to 50hz 7KW or more reliable but cheap!??

I need to be able to convert north NA 220-240V 60hz into 220-240V 50hz to be able to use an induction cooktop that i am getting from europe ( france )

i believe that frequency is an important tunning factor in induction heaters and have not found any story online of someone trying a 50hz appliance on 60hz circuit


so instead of frying electrics ( or just frying pans and stuff )
i would like to see how much would cost to buy or DIY
a frequency modifier that would work with 7KW load

i know that some of you here are wizkids in electrical design and circuits, wich i am not

some of the commercial products i have found on internet have too many options, and are in the 1000$+ range
wich is obviously too expensive to run only 1 cooktop on

are the parts required to make such a converter that expensive?

what would be required? what are the bases of those circuits ?

any info will help!

thank you for your time!
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Old 5th August 2009, 04:17 AM   #2
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Hmmmm, I dunno if induction cooktops are frequency sensitive, if they are then economics may say swapping in a 50Hz generator into a secondhand diesel generator

Cheers!
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Old 5th August 2009, 04:27 AM   #3
JinMTVT is offline JinMTVT  Canada
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ahhaha

well if i look at induction calculations,
the frequency of the electricity used is a big part of the working equation

and it seems to affect the depth of the induction effect

so up to what degree is the cooktop influenced?
it might be a good reason why all european brands aren't selling any induction euro models in north america

and why here we are paying 2 to 4 times the price for the exact same model ( same specs..same look same brand ) than in France or UK

wich is also a reason why i want to import

also i want it to match the vitro ceramic and the grill i'm getting ...


and no i don't want to use a diesel generator to run that
ahha

want to use the home electricity
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Old 5th August 2009, 04:49 AM   #4
star882 is offline star882  United States
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The stove will have an inverter that would actually operate slightly better on 60Hz.
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Old 5th August 2009, 05:28 AM   #5
JinMTVT is offline JinMTVT  Canada
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could you please elaborate a little more on that ?

the inverter would perform better?

i've seen some "guts" of induction hobs on internet a few times ..and it doesn't look like there are many parts involved ( nothing very complex )

but i sure know that any "coil" operates on frequencies nah ?
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Old 5th August 2009, 09:39 PM   #6
brig001 is offline brig001  United Kingdom
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I'm fairly sure that these things work on tens of kHz or more, so whatever you feed it it will convert to a high frequency anyway. It will either rectify it then use switching transistors to make the high frequency or it will chop the incoming supply directly. Either way, the incoming supply frequency shouldn't matter.

Note shouldn't; I have absolutely no idea how you could tell without plugging it in.
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Old 5th August 2009, 09:44 PM   #7
brig001 is offline brig001  United Kingdom
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Just googled, which hob are you buying? All the Bosh ones seem to be specified as 50/60Hz and I guess many other manufacturers are too. Try contacting them and asking if it will work OK on 60Hz.

Sorry about the seemingly excessive interest, but looking for one myself soon...
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Old 6th August 2009, 02:39 AM   #8
JinMTVT is offline JinMTVT  Canada
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this is what i wanted to buy :


EH675MD11E

BOSCH and SIEMENS specifies 50/60hz for ALL of their appliances on their France site, except for all INDUCTION HOBs ..for wich they do not say anything about frequency of incoming electricity

http://www.siemens-home.fr/nos-produ...H675MD11E.html

brig001 : could you please give me link
to where you have found information about 50 and 60hz for bosch inductions ?
i could cross ref some models

you verified for models for UK or ?

because models for Canada/USA are rated only 60hz
of course ...


brig001: what are you looking for ?
don't you guys already have great prices in uk ?
if it is where u are living

here it is terrible,
only 2 models of induction hobs from Bosch/siemens/thermador
60 and 72cm
both 2500$+ CAD
ridiculous
the same sells for 600$euro

let me know if you have more info
anything will help at this point!
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Old 6th August 2009, 05:10 AM   #9
JinMTVT is offline JinMTVT  Canada
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ok
starting from siemens uk website
and looking in google for
some part number on induction models
and frequency key word
i have found many many websites,
mostly uk vendors
that state 50 and 60hz compatibility

example :

http://we-sell-it.co.uk/value/prodpa...H675ME11E.html

for all siemens induction hobs

should i believe that it is correct?

some of the hobs are the same model number exactly as the one sold in france

can you call siemens uk and verify that for me ?

let me know
thanks
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Old 6th August 2009, 05:29 PM   #10
brig001 is offline brig001  United Kingdom
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I have the contact us page http://www.siemens-home.co.uk/contact-us.html and will call them tomorrow for you. I cannot call today - got home too late.

For the Bosh induction hobs, I just googled: induction hob 50/60Hz
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