AC112Q-3, AC125Q-3, AC150Q-3, and AC165Q-3 Operations Manual.... 10
Being a converter designed from the ground up specifically for the yachting industry, all efforts
have been made to produce a system capable of withstanding the marine environment. The system
is constructed using a modular approach where the converter consists of a control module (upper),
three (AC112Q-3 and AC125Q-3) or four (AC150Q-3 and AC165Q-3) power modules (middle),
and a transformer module (bottom). This allows the converter to be broken down into five/six parts
to facilitate its movement into a vessel through existing personnel entry points. All system
components are packaged in drip-proof, dust-resistant, aluminum (control and power modules)
and stainless steel (bottom) chassis. Major components are internally modular, allowing a simple
exchange in the unlikely event of failure. Maintenance and service are performed through top
access to the upper control module, exchange of power modules, and front/top access to the
transformer module.
Fan speed control is provided. Internal cooling fans will run at full rpm when the converter is at
full load, and minimal speed while unloaded.
System operation is managed through three basic operators:
A safety disconnect on the front of the enclosure is used for securing input service during periods
of disuse, when maintenance and/or service is in-process, or when an emergency shutdown is
needed. Three membrane switch groups in the control console—SHORE POWER, CONVERTER
POWER, and SHIP’S POWER—provide normal operation of the system. Each switch group
contains an ON and OFF switch with associated LED indicators.
Each power module has an ON/OFF switch for disconnecting the power module from the converter
when non-operational—the converter may be operated with one or two power modules in-service.
In addition to the basic function of power conversion, each converter provides the user with a
sophisticated power analysis and monitoring capacity. All parameters for input and output power,
along with operations and status information, are available on the front panel display console.
Various displays are selected through a long life, sealed membrane switch panel.
For additional information on controls and indicators, please refer to Section 6.
