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 [WTA] 220V / 60Hz use in Malaysia 240V / 50Hz, Did it safety to use?

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ktek
post Oct 30 2013, 02:54 PM

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QUOTE(alexzai89 @ Oct 28 2013, 05:11 PM)
If AC motor then it wont effect your operation.
The high precision equipment I refer is those medical equipment, engineering equipment and etc.
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are u sure about it? doh.gif
dunno where u learn electrical from... fail

QUOTE(war3boy @ Oct 30 2013, 08:41 AM)
hmm.gif Then look like i should get a transformer since you also feel it was unsafe.
Do you know where can i get the transformer for 50Hz to 60Hz?  notworthy.gif
Try to search it out, but seem hard to get in Malaysia.  rclxub.gif
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60hz definitely will affect ac motor
u need frequency inverter to change frequency

This post has been edited by ktek: Oct 30 2013, 02:54 PM
h@ksam
post Oct 30 2013, 04:15 PM

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QUOTE(war3boy @ Oct 30 2013, 06:53 AM)
It is regarding power & voltage stuff. Juicer is just additional info to provide.
I just wanna to know the problem or effect for 60Hz motor/machine running on 50Hz.  sweat.gif
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these guys should know what's in their products

http://www.hurom-slowjuicer.com/eng/low-speed-squeezer.html

and there's already some good answers over the net

http://answers.yahoo.com/question/index?qi...28052142AAhOYNz
XeMoAsLaM91
post Oct 30 2013, 04:17 PM

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QUOTE(war3boy @ Oct 30 2013, 01:42 PM)
Just hope it wont show me the smoke after i turning on.  shakehead.gif
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haha dn wory 80% it wont. finger cross. xD brows.gif
plus its a expensive juice so i doubt smoke will come out.
RAMChYLD
post Oct 30 2013, 04:40 PM

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I strongly think it will work. These devices usually have a 10% tolerance level, meaning it will only not work if power drop below 10% of 220v or explode if power go above 10% of 220v. Hz usually unimportant, on a motorized device it may usually mean that the motor will spin a little slower if it's an AC motor.
TSwar3boy
post Oct 30 2013, 05:38 PM

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QUOTE(ktek @ Oct 30 2013, 02:54 PM)
are u sure about it? doh.gif
dunno where u learn electrical from... fail
60hz definitely will affect ac motor
u need frequency inverter to change frequency
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Do you able to recommend the frequency inverter?
Seem like abit hard to get it. notworthy.gif
TSwar3boy
post Oct 30 2013, 05:42 PM

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QUOTE(h@ksam @ Oct 30 2013, 04:15 PM)
these guys should know what's in their products

http://www.hurom-slowjuicer.com/eng/low-speed-squeezer.html

and there's already some good answers over the net

http://answers.yahoo.com/question/index?qi...28052142AAhOYNz
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Understand this, Quite many review from SG that stated those juicer work fine.
But my doubt is did they last long? Afraid the Hz will bring an effect to the motor in long term. notworthy.gif
Richard
post Oct 30 2013, 10:08 PM

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If i understand the links a 60Hz korean made AC motor will run 20% slower using 50Hz Malaysian electricity.. This might cause a problem with your juicing speed controls.

A 220V Korean motor should be able to handle additional 20V (9%). Our Malaysian 240V electricity should not cause a safety issue but it would make it run hotter then 220V.




TSwar3boy
post Oct 31 2013, 01:35 AM

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QUOTE(Richard @ Oct 30 2013, 10:08 PM)
If i understand the links a 60Hz korean made AC motor will run 20% slower using 50Hz Malaysian electricity.. This might cause a problem with your juicing speed controls.

A 220V Korean motor should be able to handle additional 20V (9%). Our Malaysian 240V electricity should not cause a safety issue but it would make it run hotter then 220V.
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What the problem it will cause?
And when it run hotter will it damage the motor? blink.gif
Richard
post Oct 31 2013, 01:57 PM

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QUOTE(war3boy @ Oct 31 2013, 01:35 AM)
What the problem it will cause?
And when it run hotter will it damage the motor?  blink.gif
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Running hotter to damage the motor would mean hot enough to melt the stator winding insulation. This would mean temperatures well above 200 plus degrees Celsius as the insulation is basically just plastic polymer or pvc.
You will be able to smell that burning plastic aroma of electrical fires.

Here's a little test to see if your juicer is safe, switch on your juicer and turn it to its maximum setting. Let it run for about 15 minutes or the longest time you would reasonably use it. Now put your hand on the base where the motor is. If it is feels unreasonably hot then stop using it. If it is just warm then it should be ok to use.

TSwar3boy
post Oct 31 2013, 10:55 PM

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QUOTE(Richard @ Oct 31 2013, 01:57 PM)
Running hotter to damage the motor would mean hot enough to melt the stator winding insulation. This would mean temperatures well above 200 plus degrees Celsius as the insulation is basically just plastic polymer or pvc.
You will be able to smell that burning plastic aroma of electrical fires.

Here's a little test to see if your juicer is safe, switch on your juicer and turn it to its maximum setting. Let it run for about 15 minutes or the longest time you would reasonably use it. Now put your hand on the base where the motor is.  If it is feels unreasonably hot then stop using it. If it is just warm then it should be ok to use.
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I found one person at SG, she use the juicer daily without problem.
SG also rate in 50Hz and the Motor is 60Hz. sweat.gif
Really confused me. cry.gif
TSwar3boy
post Nov 6 2013, 10:29 PM

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Very happy that the machine is working fine.
Temperature is okay; didn't get warm too.

Will monitor it for few days. smile.gif

Thanks everyone comment.
h@ksam
post Nov 6 2013, 10:53 PM

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QUOTE(war3boy @ Nov 6 2013, 10:29 PM)
Very happy that the machine is working fine.
Temperature is okay; didn't get warm too.

Will monitor it for few days. smile.gif

Thanks everyone comment.
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life is too short to worry about a juicer everyday

happy juicing!
TSwar3boy
post Nov 6 2013, 11:08 PM

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QUOTE(h@ksam @ Nov 6 2013, 10:53 PM)
life is too short to worry about a juicer everyday

happy juicing!
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If the item around RM200 / Rm300, i wont worry about it at all.
But the item cost 1.2k. I have to worry. sweat.gif

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