The scenario
Electrical system for a 50ft sailing catamaran with twin engines, each driving a 15 kW AC generator, supplemented by shore power connection.
What is in this drawing
Read the decisions behind it.
01
Use of automatic transfer switch to select between shore and generator bus
02
Dual generators can feed common bus for redundancy
03
Branch circuit protection with breakers for major loads
Applicable to any vessel with multiple AC sources and a need for clear power flow documentation, especially for survey, refit, or owner education.
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