Michael Welch wrote:
According to a document I received from an F-P technician, here is
what it takes to run their washers on an inverter: I passed this
document on to the list late last year, so check your attachments
folder for
Using 120V Alternate Energy Generation.doc
Are There Existing Customers who are Successfully Running a Smart
Drive Autowasher From An Inverter Supply?
There are many installations where Smart Drive Autowashers are
successfully operating on an inverter supply. In our experience if the
following technical criteria are met by an inverter then operation and
reliability should not be an issue:
RMS Voltage: 120V +/- 10% (up to -20% may still work provided the pump
outlet hose is not too high i.e. pumping a high head of water)
Frequency: 60 Hz +/- 5%
Peak Voltage: 200V peak - / This is the major point!!!
/Older style inverters can have an rms voltage inside specification
but do so by having short duration high voltage pulses. The Smart
Drive treats this high voltage pulse as a voltage transient and clamps
the voltage above 200V. The electronics are well rated to absorb this
clamp energy on a transient basis but not 120 times a second (60Hz)
continuously. If this continuous clamping occurs then it may lead to
premature failure of the Smart Drive electronics or the Inverter
electronics.
Power Rating: 2kVA (2,000VA) minimum.
Normally Modified Square Wave inverters provide too LOW of a peak, and
change with battery voltage. 200V peak would only occur
at a VERY high battery voltage for most MSW inverters you folks would
normally use, like a DR etc.
boB
While the Smart Drive only consumes about 650W of power maximum, the
VA rating can exceed 1kVA. Successful installations have a rating of
2kVA min.
Allan Sindelar wrote at 04:41 PM 7/1/2009:
According to others on this list, the sine wave Magnum won’t run one,
so I would be very cautious.
Allan
Allan Sindelar
[email protected] <mailto:[email protected]>
NABCEP Certified Photovoltaic Installer
EE98J Journeyman Electrician
Positive Energy, Inc.
3201 Calle Marie
Santa Fe, New Mexico 87507
505 424-1112
www.positiveenergysolar.com <http://www.positiveenergysolar.com>
------------------------------------------------------------------------
*From:* [email protected] [
mailto:[email protected]] *On Behalf Of *Dana
*Sent:* Wednesday, July 01, 2009 5:20 PM
*To:* 'RE-wrenches'
*Subject:* [RE-wrenches] Fisher Paykal on a MAGNASINE
Has anyone run a Fisher-Paykal washer on the Magna sine modified sine
wave 1200 watt inverter? Good to do or not?
Thanks
Dana Orzel
------------------------------------------------------------------------
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