AC24/30/36 Operations Manual....
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3 INTRODUCTION TO THE AC24, AC30, AC36
Each model is a high performance Yacht Power Converter utilizing dual-conversion technology.
These converters will accept any single phase input service with a frequency between 40-70 Hertz,
and a voltage between 170-520VAC. Input service may consist of a single 100 (125, 150) Amp
shore cord, or dual 50 (63, 75) Amp shore cords. When operated from two shore cords, the two
shore cords must be of a like voltage form; the converter may be operated from two shore cords
protected by GFI/RCD type circuit breakers. When operated from a single shore cord, the SHORE
POWER 1 INPUT must be used. The output power form has been programmed at the factory for the
power form, voltage, and frequency, required by the yacht’s electrical system.
Dual-conversion technology is the preferred technique for AC power conversion, and was chosen for
these converters. With this technology, the shore power service is isolated by transformers, then
converted to DC power by the Power Factor Correction (PFC) power supplies. The output inverters
then convert the DC power back to the required AC form (both voltage and frequency) required by
the yacht.
FIGURE 1 SYSTEM BLOCK DIAGRAM
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