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Anonymous Poster

Installation of 110V/60Hz Alongside 230V/50Hz

01/18/2010 7:19 PM

Hi all, I'm living in a country with 230V/50Hz. I frequently travel to the US and would love to be able to purchase US electrical goods for use back home. For the most part, that is no problem as modern goods mostly accept 110-240V/50-60Hz especially for transformation to DC internally. However, quite a number of kitchen hardware and gaming consoles are quite particular about their 110V/60Hz input. I'm renovating my place at the moment and thinking of installing a 110V/60Hz network alongside the mains 230V/50Hz. Any idea how I can go about doing it? Thanks in advance for your suggestions! Cheers Ben

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#1

Re: Installation of 110V/60Hz alongside 230V/50Hz

01/18/2010 11:33 PM

A transformer and a VFD perhaps?

Or a motor-generator with 5:6 step-up gear ratio? (More cumbersome, I would think.)

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Anonymous Poster
#2

Re: Installation of 110V/60Hz alongside 230V/50Hz

01/18/2010 11:39 PM

You can use a step down transformer from 230/110Volts and then a frequency converter from 50 Hz to 60 HZ in one combined unit.

CVS Murthy

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Anonymous Poster
#16
In reply to #2

Re: Installation of 110V/60Hz alongside 230V/50Hz

03/27/2010 8:19 PM

Hi

Where can I find something like this. Separate items are easy to get, but teh fewer boxes the better...

Sandy

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#3

Re: Installation of 110V/60Hz alongside 230V/50Hz

01/19/2010 1:25 AM

guest; i would go for the step down transformer, & not worry about the 50/60 HZ. many items are listed 110 volts @ 50 HZ/ 120 volts & 60 HZ. American electric ranges are 120/240 volt, the 120 volt is for the light bulbs, clock, etc ,now days the clock/timer are electronic. dish washer/disposal 120 volt, microwave 120 or 230 volt. perry

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Guru
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#4
In reply to #3

Re: Installation of 110V/60Hz alongside 230V/50Hz

01/19/2010 2:48 AM

A plug-in electric clock (shaded pole motor type) won't get away with this, unless you change some gears!

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Guru
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#5
In reply to #4

Re: Installation of 110V/60Hz alongside 230V/50Hz

01/19/2010 8:46 AM

Quite right!

The US Air Force sent me to several countries where 220/60 was the standard and we could get small to medium plug-in transformers that let me use most of my U.S. electronics. The only problems arose with devices that were dependent upon the speed of an electric motor.

As long as you purchase electronics that are not exactly speed dependent you should be fine. I was told that my microwave would not like the change in htz but the model I had worked fine for 3 years in England. Cd-players and computers posed no problem either, but I think a record player might.

If you have the finances, airport magazines sell many devices that are mult-voltage. If you are military or have friends that are you can get multi-voltage and mult-system electronics at the Base Exchange. The multi-system is required if you want to work with PAL and NTSC television signals. Some DVD players are region specific and will only play certain disks.

Drew

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Anonymous Poster
#8
In reply to #4

Re: Installation of 110V/60Hz alongside 230V/50Hz

01/20/2010 6:09 AM

or go to a 28.8 hour day

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#12
In reply to #3

Re: Installation of 110V/60Hz alongside 230V/50Hz

01/20/2010 11:12 AM

Pls. do the normal 220V wiring and use step down tranformer were necessary. Doudle circuit in same house could be misleading to ur detriment.

Take care

Dickson.

Abuja, Nigeria.

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Guru
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#15
In reply to #12

Re: Installation of 110V/60Hz alongside 230V/50Hz

03/27/2010 11:07 AM

The wire/conductor size is to be taken care since when the voltage comes down by half, the current will be double to that of at 22o volts.

DHAYANANDHAN.S,

CR4 MEMBER,

INDIA.

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Guru
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#6

Re: Installation of 110V/60Hz alongside 230V/50Hz

01/19/2010 1:58 PM

Changing voltage is easy, changing frequency is not. But the question is, do you really need to change frequency? Maybe, maybe not. About the only things that are affected by frequency are motors and transformers. Things with switch mode power supplies (in general) and heaters are only interested in voltage.

First you must be a little more exacting in your voltage ratings. I don't think any new US appliances are really "110V" any longer, because in the US, household voltage levels can vary from 110V to 127V. So if your house has 127V and the appliance was rated 110V, you are exceeding it even if you have a +-10% range. So a long time ago, motor manufacturers "standardized" (not really, but in effect) on either 115V or 117V because it falls within that +-10% range either way.

So assuming you have 115V rated appliances, then the next thing to consider is maintaining the V/Hz ratio. So divide the V by the frequency in Hz, which gives your 115V 60Hz appliances a V/Hz ratio of 1.92 to 1. Then apply that to a 50Hz supply, and you end up with 95V. So, in order for you to realistically run appliances with AC motors in them at 50Hz, you need to reduce the voltage to 95V (+-10%) or risk burning them up. But if your appliances have DC motors or what are called "universal AC motors" in them, as many do, then again, it may be problematic because DC motors are voltage dependent and lowering the voltage may adversely affect them as well.

Getting a frequency converter (inverter) for small appliances is a bit of over kill, but if you insist, get one for each device that absolutely needs it the way to do it. DO NOT run separate wiring inside of walls to run dual sources throughout your house, you are asking for trouble, and most likely it will be illegal wherever you are anyway. One of the many problems with running wires side by side with different frequencies is what is called "Mutual Induction". Normally, premise wiring is always at the same frequency from the same source, so parallel runs have no effect on each other. But if they have different frequencies, there is a relative different, so they will mutually induce currents, an impedances, on one another. the net effect could be heating of the wires, voltage instability, spikes, noise, all kinds of things that appliances and electronics DON'T like.

Better yet, find things in your new country that are designed to work there...

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#13
In reply to #6

Re: Installation of 110V/60Hz alongside 230V/50Hz

02/09/2010 2:11 PM

Hi

Does this apply to household appliances such as vacumm cleaners, or will I get away with simply stepping down the voltage from 220v 50hz to 110v 50hz?

Thanks

Sandy

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#14
In reply to #13

Re: Installation of 110V/60Hz alongside 230V/50Hz

02/09/2010 5:00 PM

I had no problems using my American vacuum and some other small electronics while living in England.

I can't say for all electronics you might use, but your vacuum should work fine.

Drew

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#7

Re: Installation of 110V/60Hz Alongside 230V/50Hz

01/20/2010 12:12 AM

Hi You can order for a 110Volt 60Hz sinewave inverter of the required capacity from any local manufacturer operating on 230 V AC input and wire up the whole house with american sockets. So all your equipments can be plugged in without any fear of damage. Now most of the equipments like PCs have an adapter for 90 to 290Volt 40 to 65Hz. Hence there is no poblem of operating them on 230V 50 Hz. May be AC 60Hz operated motors (in washing machines, food processors in Micro ovens etc)or any frequency sensitive equipment cannot be operated. The above I have implimented in my house. Which is satisfactorily working for the last 5 years.

Seetharaman.

seethasub@hotmail.com

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Power-User

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#9

Re: Installation of 110V/60Hz Alongside 230V/50Hz

01/20/2010 7:39 AM

Since u are now residing in country with 230/50Hz,Buy goods rated for 220,230,240/50Hz/60Hz.

U can buy small individual stepdown transformers for your internal small loads already aquired with 60Hz,to step down the power for such loads to 110V/60Hz.

Patrick Whowha

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Anonymous Poster
#10
In reply to #9

Re: Installation of 110V/60Hz Alongside 230V/50Hz

01/20/2010 8:07 AM

hi mr. patrick how will you take care of frequency sensitive devices like synchronus motors etc.

seetharaman

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#11

Re: Installation of 110V/60Hz Alongside 230V/50Hz

01/20/2010 9:28 AM

Use a 12 volt battery charger. I assume they have those in 220 volt 50 HZ models. Once you have 12 volts DC you can use one of those devices that plug into your cigarette lighter on your car and output 117 volt AC. All standard stuff.

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