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ABOUT
Our Story
ASEA Power Systems is a world leader in the design and fabrication of power conversion equipment specially designed for the marine market. Our products range in power from 8 – 1000+ kVA and come in both air and liquid cooled variations. Product applications include shore power converters, line voltage regulators, isolation transformers, generator management modules, clean grid converters and custom engineered designs.
Our products are highly customizable – with 12 enclosure styles, 3 cooling systems, and over 50 controls, alarms, and communication options.
ASEA Power Systems is a brand of Mission Critical Electronics under the Marine Power Division.
Mission Critical Electronics LLC represents a platform of distinctive brands and products focusing on industrial electronic and electrical applications where durability, reliability, and performance in hostile environments is essential. A focus on critical system applications in commercial marine vessels, mega yachts, DC control & standby power, railroad passenger cars, wireless networks , emergency vehicles, and public safety communications and has resulted in a unique offering of high value products and well respected brands in our respective markets.
Technology
ASEA’s shore power converters use dual-conversion technology for precision and safety. The systems will accept any input service with a frequency between 40-70 Hz, and a voltage between 170-520 VAC. The output power has been programmed at the factory for the power form, voltage, and frequency required by the vessel.
How It Works
STEP 1
Power enters the system from the shore pedestal at local standard
STEP 2
The isolation transformer steps up/down voltage and isolates from the shore power
STEP 3
AC is rectified to DC power by a Power Factor Correction (PFC) power supply.
STEP 4
DC is converted to AC through Output Inverters at the voltage and frequency required by the vessel
OPTIONS
Controls, Alarms and Communications
Seamless Transfer
STO has the ability to transfer up to four generators seamlessly, eliminating interruptions in power whether the direction is to the shore or the generator.
Remote Touch Panel
Monitor and control an ASEA Power shore power converter from a distance of up to 1,000 feet with a remote touch panel that uses modbus RS-485 communication technology.
K2A & K4A Auxiliary Contacts
With online and standby dry contact confirmation signals, these auxiliaries are capable of controlling another device or sending a status-indicating signal.
Dual Master Control
Take advantage of the capability to run two power distribution buses at the same time or separately – ASEA Power’s dual master controls run in parallel or independent of one another.
Converter Output Circuit Breaker
This custom ASEA Power option controls the external shore circuit breaker to isolate the converter from bus when not in use.
Programmable Logic Control
Conveniently control your ASEA Power shore power converter remotely using a 24V input
Safety
ASEA products have a reputation for being the safest on the market. Unlike most of our competitors, we use isolation transformers in the conversion process.
LEAKY FAULT CURRENT
Without an isolation transformer, there is a direct connection between the earth ground of the dock and the ship’s electrical system. A loose wire on the boat may cause fault current to flow through the ships hull to the water, and back to the shore supply. That current flowing through the water is what makes swimming in the marina so dangerous!
REVERSE POLARIZATION
Another potential hazard solved by an isolation transformer is Polarization. If the supply from the shore has the hot and cold wires swapped, your power on/off switch may not be disconnecting your appliance from power. Or it may cause the normally grounded case to be hot. Again, it’s the magnetic field of the transformer core that protects you – swapped wires at the shore will not cause swapped polarity onboard.
