Convert 110v 60Hz to 230v 50Hz

What is the reason for a converter? Your motor will probably run fine on 60Hz just a little faster and slightly lower current.
It is probably geared down quite a bit also?
You would just need to install a 15amp 240v outlet which may be simpler than buying a $1300.00 convertor.
M.

 

I would imagine any control electronics are all low voltage DC and would be supplied from either a linear or SMPS power, so should not be affected.
What conditions do the digital controls monitor or control? They may not be frequency sensitive, e.g. thermal etc, the main thing I can see is the motor rpm and also if it has speed control of some kind.
M.

 

I think you mean 8.7A? A 2kW motor is about 2000VA.

 

Don't know how you managed that
This is what the calculator shows me:


Edit: In reality, the power factor will be something less than 1, e.g. 0.8.

 

You said your motor is 2kw that is around 2.5hp
2000W /240v = 8.3amps.
Rough guide.
M.

 

What number (between 0 and 1) did you enter for the power factor? And where did you get that number? It looks like you entered 230 for the power factor. Power factor is always a number between zero and unity. Click on the power factor link on the page you cited for an explanation. The on-line calculator does not give correct answers if you enter power factor numbers outside the range 0 to 1. Worse, it doesn't tell you it is providing an incorrect answer. Moral of the story: learn the theory, do your own math.

 

@Rabit glad you got some help from people here. If you are still worried about damaging your German apple squeezer, why not send them an e-mail or even write a letter and ask what harm (if any) would come from operating their machine on 220 or 240 VAC, 60 Hz rather than 230 VAC, 50 Hz. As @Minder noted, the motor will run a little faster (and a little more efficiently) on 60 Hz versus 50 Hz, but that shouldn't be a problem grinding apples. BTW, @Minder has considerable experience specifying and installing industrial motors, so I usually take his "advice" as gospel.

What might be a problem is if one terminal of the motor is connected to a grounded neutral and the other is intended to have 230 VAC applied. In the US, both terminals of a 220 or 240 VAC feed are "hot" with respect to ground, either one providing 110 or 120 VAC with respect to neutral (which is bonded to earth ground at the service entrance). You would need a 2 KVA isolation transformer to allow you take your 110-0-110 (or 120-0-120) VAC feed and translate that to a 220-0 or 240-0 feed, where the 0 terminal is connected to neutral and grounded. If you do need a 2 KVA isolation transformer, you can purchase it with the money you saved by not buying a frequency converter and maybe have enough left over to pay for lunch. Again, it would be prudent to contact the manufacturer to see what they suggest. And perhaps consult a licensed industrial electrician before applying power to anything.

Another problem might involve digital timers. If present, these timers may use the 50 Hz European power line frequency as a timing reference instead of a built-in crystal oscillator. A 60 Hz feed would make the timers run faster. If this is the case (power line used as a frequency reference), and if the unit is designed for export, there may be a jumper on board somewhere that selects 50 Hz or 60 Hz as the power line frequency, It would not hurt to make an inquiry to the manufacturer about this. OTOH, if there are no digital timing functions, or if an internal crystal oscillator is used for timing reference, then you have no problem.

BTW, could you please provide the manufacturer and model number of you apple crushing machine?

 

Grinder motor alone is 2kw. Supply should be sized at least 125% of that.
The start up current is considerably higher than the motor rating.

As Hevens1944 said, It's best to consult an electrician to scope out what you have and verify it's safe.
He may have to tweak fuse sizes, thermal overload settings to suit voltage/freq difference. He will also know the smartest and most cost effective way of setting this up for you.

 

There should be no difference using and operating equipment designed for the L & N and the N.A. system (L1 L2), the one possible difference is that the present machine may have an internal main fuse in the live conductor only, in N.A. it would have a fuse in both L1/L2.
.Worst case scenario a fuse could be added, you would have both the service panel breakers in any event.
M.