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    As specialists in marine electric and electronic systems design, installation, service and corrosion prevention; our work on the Muriel Eileen is typical of much of the work we do. However, this project combined on one boat a lot of different problems that needed solutions.

    The owner of the Muriel Eileen wanted a full range of redundant electrical systems installed at the same time as other systems were added to the vessel. These systems included fresh water, sanitation, and cooling and heating systems; and they needed to be integrated and fit into limited space. The installed systems had to be done so that the appearance of this classic boat was enhanced. Additionally much of the work was done while the Muriel Eileen was in the yard for hull repairs.

    This job didn’t get done overnight, in fact we are still finishing up some tag ends, but we are proud of the solutions we came up with to solve the problems this job presented. Work started with the installation of ducting for wires and water & sanitation lines. The pictures on this page show this and some of the key features of the resulting electrical system.

When we started work the boat had a two battery DC electrical system that supplied power for the 12 / 24 volt “series/parallel” engine starting circuit and navigation lights. The system we designed to meet the owners requirements and provide power for basic underway operations uses five batteries. In the new system where the batteries have been sized to handle the load they are setup so two batteries are used for engine starting, two batteries provide a “House Bank” and power the inverter and one battery serves the generator and the auxiliary engine starter.

The redesigned DC electrical system now powers:

+ Commercial shipboard DC lighting throughout the boat
+ Navigation lights
+ Water & sanitation systems
+ Vessel electronics

The AC electrical system we designed and installed provides power for:

+ Commercial shipboard AC lighting & GFCI protected outlets through out the boat.
+ Tempered water cooling & heating system
+ Boiler system
+ AC appliances

Key features of the electrical system include:

+ Battery switches that permit managing battery use.
+ Balmar 100 amp high output alternator with external smart regulator for underway power and battery charging.
+ Battery isolation and “over current” protection.
+ Freedom Marine 25 Inverter / Charger with a 2500W output that permits the operation of AC lighting and outlets.
+ Link 2000 Inverter/ Charge control is used to control the inverter and battery charging.
+ Kohler 10EOZD 10KW generator set with the “Advanced Digital Control System” that provides AC power when not hooked up to shore power.
+ At the dock power can be provided through either a port or starboard 120/240V 50 Amp shore power system inlet that both have “over current ” and galvanic current protection before connecting to a 3-pole, 7 position power distribution switch.
+ Ke-Lan Technologies Galvanic isolator and Shore Power Status monitoring system.
+ A 30 Amp / 120V galvanic isolated power outlet that permits providing power to another vessel.

    These systems and their components are arranged in over 60 circuits that are controlled from three integrated panels that monitor system operation. These electric distribution panels including DC power distribution, AC power distribution & Special Circuit panels. On the following pictures point your cursor at the picture for the picture description.