Hi Robert,
Yes quick cable # 50401 for 100' roll.
Size is #4
jay
peltz power
On Aug 22, 2008, at 5:38 PM, robert ellison wrote:
Try Quick Cable, seems that they have it if I remember correctly.
Bob
On Fri, Aug 22, 2008 at 11:41 AM, <[EMAIL PROTECTED]> wrote:
Anybody know a source for braided grounding wire? Internet search
fruitless......
Holt E. Kelly
Holtek Fireplace & Solar Products
500 Jewell Dr.
Waco,Tx. 76712
254-751-9111
254-228-9621 (cell)
[EMAIL PROTECTED]
----- Original Message -----
From: Kurt Albershardt
To: RE-wrenches
Sent: Friday, August 22, 2008 12:57 AM
Subject: Re: [RE-wrenches] motor starting issues (was: offgrid
systemquestion)
--On Tuesday, August 19, 2008 7:57 AM -0700 Peter Parrish
<[EMAIL PROTECTED]> wrote:
>
> Any motor will need both a voltage and current to operate
properly, and they tend to draw more and more current as the source
(inverter) voltage drops.
Back to basic physics:
Depending on design, electric motors can be constant power or
constant torque (or some combination of two) devices.
Three phase AC motors are generally simpler in design and better
behaved than either either single phase AC motors or DC motors.
Permanent magnet synchronous 3Ø AC motors (available now) closely
approach the theoretical limits of electromechanical motor systems
in general.
Modern power electronics and control systems give us essentially
perfect control of voltage, current, and frequency in AC systems.
Intelligently combining the above allows us to design efficient
electromechanical systems which match nearly any complex supply
impedance. These systems also happen to live longer, fail less
often, and reduce both battery bank and inverter requirements.
The market (arguably free on so many levels, and obviously not on
so many others) can address this using current technology. System
sizing math not has changed fundamentally in several decades but we
are getting closer to those fundamental limits.
Industrial systems are a bit ahead of the consumer market in some
areas but behind in others. As one very basic example, Turbocor's
maglev compressor has created a few waves in the commercial and
light industrial sector but I fully expect some fascinating trickle-
down benefits over next few years <http://www.turbocor.com/
products_technology/>
.
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