[RE-wrenches] 120/240V to 200V 3 phase (Japanese Electrical Scheme)

[Darryl Thayer]

Sorry for the confusing reply,  Ijust checked with my supplier of speed
drives, it is now allen bradley, he said 15 kW is awfully big reply

On Thu, Jul 25, 2024 at 1:05 PM Darryl Thayer <darylsolar1 at gmail.com> wrote:

> You made me think and that is sometimes not good.  Is this 200 v between
> phases?  Then a 120-208 three phase output should work fine.
> However I am not sure a 15kW inverter will supply the power.  I have had
> good luck with sol-ark 15 kW powering small motors single phase, but a
> speed drive has rectifiers and capacitors. the drive needs 3 phase power or
> else the rectifiers get overloaded. If you only have these motors to drive
> and your solar array is 400 volt you may be able to connect solar directly
> to drive input again check with your drive supplier.
>
> On Thu, Jul 25, 2024 at 11:46 AM Lou Russo via RE-wrenches <
> re-wrenches at lists.re-wrenches.org> wrote:
>
>> Aloha All,
>>
>> I have a project that requires powering 6 different pieces of equipment
>> (mostly small motors) from East Japan that require 200V 3 phase (L-L-L) at
>> 50Hz (though 60Hz appears to be OK), a unique electrical scheme for sure.
>> The amp requirement for the various pieces of equipment ranges from 0.75A
>> to 6A. For a total maximum load of 28 amps. The site is off-grid with
>> standard 120/240V North American Electrical Scheme using a Sol-Ark 15kW.
>>
>> My initial plan was to use Digital Phase Converters from MYUNG YOUN
>> ELECTRONICS for each device but after seeing the wiring in the control
>> panel and power distribution box in person there is no room to do this.
>> Plus the entire panel would need to be rewired.
>>
>> Ideally, I would have one device that converts the
>> electricity appropriately (transformer, VFD, etc). I have reached out to
>> several EEs and am awaiting responses.
>>
>> In the meantime I figured the hive mind of the Wrenches group may have
>> some ideas or know somebody that would.
>>
>> As always, thanks for everyone's time.
>>
>> Aloha,
>>
>> Lou Russo
>> Owner
>> lou at spreesolarsystems.com
>> Office - 808 345 6762
>> Direct Line - 808 731 1907
>> Spree Solar Systems LLC
>> CT-34322
>>
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