CAD CAM EDM DRO - Yahoo Group Archive

110V Isolation Transformers

on 1999-12-29 07:45:48 UTC
My Servo drivers are transistor based. So all I need is 150 VDC to get
them going. How I get it is uniporttant to the drive.

I've therfore shelved the 3 phase converter idea for now. So I am going
to try and get one of the servo amps working on single phase. I will
derate the 10 amp output to 7 amps. I found a pot on the servo driver
that limits the peak current for different motor types. This is
designed to protect lower current motors from being over-driven. I
will probably not even replace the diodes or add additional capacitance
to the filter caps. I hope it was overdesigned enough to let the diodes
survive the higher averge currents they will see in a single phase
application. I'll try to identify the diodes and get some specs, but
that may be difficult with the minimal info I have.

To do this I need 110V single phase isolated from the line by a
transformer. The Transformer I have is a 3KW 3phase monster ( weighs
about 50 lbs !!) that handled all 3 axis. It was custom wound for the
motor drives. Are there step down or isolation transformers around
(cheap) for 110-110 or even 220-110 (single phase) ?? I need 8-10 amps
on the secondary. Any good sources you know of ??? I also need
transformers for 36VAC at 1-2 amps each .

Any help is appreciated.

dave

Discussion Thread

David L Anderson 1999-12-29 07:45:48 UTC 110V Isolation Transformers Charles VanLeeuwen 1999-12-29 08:23:09 UTC Re: 110V Isolation Transformers Jon Elson 1999-12-29 11:57:01 UTC Re: 110V Isolation Transformers Paul Corner 1999-12-29 15:51:05 UTC Re: 110V Isolation Transformers