The main difference between single phase and 3-phase (basically a ground and 2 live circuits) is the resultant voltage.
Single-phase = 110v US and 220v UK
3-Phase = 220v US and 385v UK
All heavy duty applicances in the US (A/Cs, Washer/Dryers, Electrical cooktops etc) use 220v,(3phase).
By supporting 3-phase, appliances can run in a multi-tude countries and the manufacturer only has to worry about the frequency i.e. 50/60hz between the regions.
I had one pulled into my garage for my 220v tools.
My 2-cents worth
John Harris
IBM
------ Original Message ------
Received: 11:37 AM EDT, 05/04/2009
From: Dave Jones <[email protected]>
To: [email protected]
Subject: Re: z890 power: 3 phase vs 1 phase?
Received: 11:37 AM EDT, 05/04/2009
From: Dave Jones <[email protected]>
To: [email protected]
Subject: Re: z890 power: 3 phase vs 1 phase?
That's right...the z boxes basically have an a/c system built into them.
The a/c units here at the house (living here in Houston, we know a
thing or two about a/c....) both run on three phase power.
Alan Altmark wrote:
> On Monday, 05/04/2009 at 08:57 EDT, Dave Jones <[email protected]>
> wrote:
>> Well, the z boxes all have motors to drive the fans, but I do not
>> understand why they would need 3 phase power.....
>
> Don't forget the coolant compressors.
>
> Alan Altmark
> z/VM Development
> IBM Endicott
--
Dave Jones
V/Soft
www.vsoft-software.com
Houston, TX
281.578.7544
The a/c units here at the house (living here in Houston, we know a
thing or two about a/c....) both run on three phase power.
Alan Altmark wrote:
> On Monday, 05/04/2009 at 08:57 EDT, Dave Jones <[email protected]>
> wrote:
>> Well, the z boxes all have motors to drive the fans, but I do not
>> understand why they would need 3 phase power.....
>
> Don't forget the coolant compressors.
>
> Alan Altmark
> z/VM Development
> IBM Endicott
--
Dave Jones
V/Soft
www.vsoft-software.com
Houston, TX
281.578.7544
