Teletype & inverters

From: Bryan Blackburn <oldcomp_at_cox.net>
Date: Thu Jun 5 17:06:00 2003

The biggest problem is that induction motors draw three to four times
the rated load on startup. Otherwise, a modified sinewave inverter would
work fine. I have a 24 volt input, 120 v output, 60 Hz, continous 2500
Watt modified sinewave, Trace inverter sitting on my bench if anyone is
interested. It is rated to put out nearly 9000 Watts into an inductive
load for 30 seconds, which is enough to start nearly anything, and has a
built-in 50 Amp battery charger, voltmeter & etc. & etc...

-Bryan

Tony Duell wrote:

>>Wouldn't it be so much easier to make a power inverter to run at 50 Hz
>>
>>
>
>The problem is that many simple/cheap inverters have _horrible_ output
>waveforms. Induction motors (as used in the Model 33) don't like them,
>and actually, the inverters don't much like highly inductive loads...
>
>
>
>>and save all the time and expense of finding gears & etc. & etc.?? I
>>have a power inverter that would be a simple cap change (two of them) to
>>
>>
>
>I believe we actually want a 60Hz inverter here.
>
>-tony
Received on Thu Jun 05 2003 - 17:06:00 BST