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  #1  
Old 02-03-2010, 09:20 PM
bertho bertho is offline
bertho
 
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60 htz to 50 htz question..

gents,
i find here a nice used watermaker ( HRO ) but it's a 110/235volts 60 htz ...
the control panel have connecting option for 235v ,( a transfo convert in 12v dc, should be ok) , but the motor and the oil capacitor will probably not like running with 220v/50 htz ??? if only slower, is not a problem as i can change the sheave to keep the same speed on the cat pump... any advise ??
thanks
bertho
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  #2  
Old 02-04-2010, 03:41 AM
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CDK CDK is offline
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Don not buy it if you have no 60 Hz power grid, unless you are willing to install another motor. This one will run but draws a lot of current and burns out.
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  #3  
Old 02-04-2010, 10:03 AM
jonr jonr is offline
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You may (or may not) get overheating if you don't drop the voltage by the full 17% (vs the 6% in your situation).

I'd buy a variable frequency drive to output 60Hz.
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  #4  
Old 02-04-2010, 02:42 PM
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BTPost BTPost is offline
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Yep, Freq Drive would solve all your Frequency and Voltage problems, motor wise... Hatachi makes some really nice ones that are very reasonable in price for small electric motors....
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  #5  
Old 02-04-2010, 04:38 PM
bertho bertho is offline
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ok guys,
this was my worry.. perhaps i can re-wire the motor to fit for 50 htz.. ? it's something easy and frequent to do here...labor is cheap , or fit a new motor..
thanks
bertho
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