So what I shoulda bought was a 240:480 and fed it with 208 for 416 out.
-----Original Message-----
From: [email protected]
Sent: Friday, November 25, 2016 1:15 PM
To: [email protected]
Subject: Re: [AFMUG] OT 3 phase transformers
I didn't think the saturation would happen without a load.
Was only considering transformation ratio, dang.
Never a problem with small signals...
Still need to make 400 volts Y.
I guess I am going to have to do some kind of boost or buck arrangement.
-----Original Message-----
From: Seth Mattinen
Sent: Friday, November 25, 2016 1:10 PM
To: [email protected]
Subject: Re: [AFMUG] OT 3 phase transformers
On 11/25/16 11:49, [email protected] wrote:
I purchased a used 30 KVA 208/240 2 phase transformer. 208Y 240 delta.
You're feeding 480 into a general purpose transformer that is rated for
240 (+-10% typical)? You're saturating the core and it's ceasing to be a
transformer. Even if the breaker doesn't trip it'll probably overheat
and burn with that much overvoltage.
~Seth
