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From: Ballantyne, Merrill (no email)
Date: Thu Aug 17 2006 - 11:13:40 EDT
They are no different than the premier power welder brand welders or any
other rewound, rebuilt alternator brand that comes with a
charging/welding regulator box and automatic engine speed control. The
best chargers pulse their DC current. DC current that is pure dc, like
from a battery, doesn't pulse. But DC current that comes from spinning
windings will pulse. How fast this pulse happens depends on how the
alternator is wound.
Anything will burn out if it is overloaded with no overload protection.
The fact that a few of these burned out means nothing. If they were not
replaced promptly by the manufacturer, that would means something, but
my guess is that they were waranteed promptly.
I wouldn't just start welding with any alternator if it was not designed
for it. The automatic voltage regulation and engine speed regulation
that happens (switching between 48 and 14 volts) when welding won't
happen with an average alternator like it does with a zena welder. For
the rest of the details, read the site.
-----Original Message-----
From: Arild Jensen [mailto:]
Sent: Thursday, August 17, 2006 9:42 AM
To: Ballantyne, Merrill;
Subject: RE: lv-ab: Adding AC power for cooling
> -----Original Message-----
> From: Ballantyne, Merrill
> The best dc charging alternator in my opinion is the Zena Welder. Go
> to Zena.net it's a lot of reading but their product needs explaining
> because its very different.
REPLY
I have looked at Zena several times. So far I have not seen any real
explanation of these new laws of physics upon which their patents are
based.
What details are provided could just as easily apply to a high output
Electrodyne or Leece-Neville. Heavy duty windings, larger bearings,
added cooling air flow, external diodes and external regulator are all
good things but hardly unique since Electrodyne and Leece-Neville among
others claim the exact same thing. The one phrase that really caught my
eye was the "high frequency DC" current.
At first glance this is a contradiction in terms since Dc does not have
a frequency.
I have been told by two people that they had to take back the Zena
because it burned out. Evidently there are some situations this
generator can't cope with.
And to be fair I have seen Leece-Neville and Balmars that burned out.
Mis application or misuse.
So apart from the wonderful sales hype; exactly what is it these XENA
units does that is unique and different from any other rotary alternator
controlled by field current?
regards
Arild
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