220v/50hz power rig
David Lesher
wb8foz at nrk.com
Wed Sep 5 23:23:24 UTC 2001
Unnamed Administration sources reported that Randy Bush said:
>
>
> you're gonna love this one.
>
> i have a piece of equipment i will be shipping to china that i want to test
> before i ship it over. it has a <gasp!> electric motor! so i need some
> kind of transformer/inverter setup that plugs into red blooded american
> 115v/60hz and can handle
>
> Power requirement: 1.5 kW
> Voltage requirement: 220 V
> Frequency: 50/60 Hz
> Current requirement: 10 A
> Current protection by user: 16 A (slow blow)
> Protection type: IP 54
> Processor: C167, 20 MHz
> Spindle motor power: AC 380 Watts
> Brake: Electro-dynamic & mechanical
If you want to test it on 50 Hz, you have a real issue. You can
not easily generate that much; there is no easy way to morph 60
into same.
Such will make a real difference in motor speed (duh!) unless
it's really crude (electric drill/hair drier motor w/ brushes)
or exotic (chopper controlled with feedback regulation, etc..)
You might be able to rent/find a 5-10 KW gas generator and slow
it down to make 50; it may or may not still make 220, but that's
a little easier to handle, find a Variac. You want a bigger one
because its efficiency will fall off.
There ARE test sets that generate 50HZ from 60 (actually, 60->DC->50)
but offhand I do not know where you'd find one. Maybe a major exporter
of toys (LockNortGrumMart or such) would have one they use. Or hit
all the equipment rental outfits.
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