Multipower looks very intriguing for our application!
Catalog page #'s 5 & 14
(3.8 meg download. I copied the text below for those on slow connections)
http://www.prestolite.com/literature/mixed/PP-1184-US_Quick_Reference_Guide-lo-res.pdfNew MultiPower™ Technology
The MultiPower™ system allows for the installation of up to four (4) alternators on a single vehicle,
for a possible total of up to 1,080 amps.
The unique feature of the system is the ability of the alternators to communicate through a simple wire
connected to a transmit/receive terminal on the integrated regulators. No external control or processing
unit is required, greatly simplifying installation and increasing dependability.
This constant, real-time communication by the regulators allows the MultiPower™ system to share
the load of the vehicle dynamically and effectively. This alternator unit can be installed in a single
application where future expandability may be required, or in any configuration of up to 4 units on a
single vehicle. Multiples of a single part number can be used in applications with requirements
ranging all the way up to 1080 amps. This single unit capability means you only need to stock one
alternator model.
The load sharing capability is integrated into the regulator that is installed on the alternator. No external
CPU or CU is required, only a connecting wire between the alternators. The technology used utilizes
proven components with long established reliability records.
Multiple alternators provide back-up power in the event of a partial system failure, allowing for
significant “Continue in Use” and “Limp Home” functionality. Very high amperage capabilities allow
for large amounts of available power at engine idle. There is no need to operate alternators at high
speed to obtain the desired output, extending the life of the units. These units are also high
temperature rated at 110°C for installation on new EPA emission compliant engines.
The system will initially be confined to the 270 amp 4000 series alternators, with possible expansion
to additional lines in the future.
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www.prestolite.com