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Anonymous Poster

transformer/converter

04/21/2009 1:53 PM

I would like to know if I can run a 380V 3 phase 5HP machine on 220V (canadian current) and if so what transformer/converter I will need.

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Guru
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Join Date: Jun 2008
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#1

Re: transformer/converter

04/21/2009 6:12 PM

Unless the motor has a dual rating of 380/220 volts you can not use it on 220 volts.

You can transform the voltage from 220 to 380 volts. What is the frequency listed on the motor? 50 hz or 60 hz? Does that match the Canadian service?

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Power-User

Join Date: Aug 2008
Location: Melbourne, Australia
Posts: 476
Good Answers: 32
#2

Re: transformer/converter

04/21/2009 10:57 PM

380V Star, 220V Delta is actually a world standard for 3 phase motors.

See if you can see how the motor is connected (assuming it's just one motor) by opening the terminal box cover and checking how the motor is connected.

If it is connected in Star then you are in luck - change to Delta connections and replace any lights etc. that have 380V components.

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johny451
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Anonymous Poster
#3

Re: transformer/converter

04/22/2009 2:43 AM

for this purpose there are many VFD is available in market .Just like LG.

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Guru
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#4

Re: transformer/converter

04/22/2009 6:37 AM

Check the motor's rated frequency. The mention of 380V 3phase leads me to believe that this is a 50Hz rated motor. Canada (as the US) operates at 60Hz. If it were rated for 60Hz, most of the time the nameplate voltage would say something like 220/440, 230/460 or (rarely?) 240/480 volts three phase. This frequency mismatch can cause many unforseen (an possibly unfortunate) consequences if it is not taken in to account. Please verify if this is the case.

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Anonymous Poster
#5

Re: transformer/converter

04/22/2009 11:02 AM

hi dear ,

first of all you check motor data name plate if write on name plate 400/220v, then

you drive motor on 220v.

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