Shore Power Frequency Converter

Shore Power Frequency Converter from Power Systems International Limited

By: Power Systems International Limited  12/05/2011
Keywords: Marine, Frequency Converters, 50Hz to 60Hz frequency converters

Due to the increasing number of luxury cruise liners and fast car carrying vessels calling at international ports, as well as navy vessels berthing at foreign locations, there is a need for the maritime community drive to reduce its carbon footprint. In addition to this the noise and air pollution caused by exhausts and internal combustion engines, has meant that they are actively seeking alternative ways of providing shore side power to the vessels when they berth at port. Here, Power Systems International’s “SHORE POWER” frequency converter hold the answer!

When a vessel berths in a port the propulsion engines are turned off but normally its diesel engine driven generators would continue to run to provide power for all of the on board “auxiliaries” such as air conditioning, heating, lighting, battery charging, communications centre, computers, navigation system, water pumps and other utility services. The diesel generators produce noise, vibration, exhaust smoke, air pollution, toxic gases, and CO2 emissions. They also require bulk fuel storage and consume vast amounts of (smelly) diesel fuel, and incur costly maintenance and the inevitable need for replacement parts as necessary for all internal combustion engines.

Many of the port and harbour operators are now offering visiting vessels the opportunity to “plug into” the local city power supply grid on the dockside or shore based alternative high capacity mobile or transportable diesel or gas engine powered generators so the on board diesel engine generators can be turned off while the vessel is in port. This causes a problem as many countries have their own local power distribution grid voltages. The American continent also has a frequency of 60Hz and most of the other countries of the world have a power distribution frequency of 50Hz.

The Power Systems International “SHORE POWER” frequency converter offers the solution to all these environmental concerns and power conversion issues.

By shutting down the vessel’s engine driven auxiliary power generators and connecting to our “SHORE POWER” converters there is no smell, barely any audible noise to disturb passengers or neighbouring vessel or on board personnel, no vibration smoke or fumes, no CO2 emissions or costly diesel fuel or oil.

Our fixed “SHORE POWER” frequency converters are designed for use on the public supply grid networks of 50Hz or 60Hz with 3 phase standard input voltages of 208V, 400V, 460V or 575V. The output voltage and frequency will be according to the needs of the ship with voltages and frequencies similar to the input.

The shore to ship power converter can be manufactured in sizes of 100kVA to 400kVA in an indoors type of enclosure for installation in a substation or power distribution room. We can also supply the shore to ship power converters in an all-weather outdoor enclosure for installing on the dockside or mooring berth.

Our on board “SHORE POWER” frequency converters are available in sizes from 25kVA to 150kVA with three phase 50Hz or 60Hz output. The power converters are manufactured for installation on board vessels of all types providing them with a possibility to connect to any shore based city grid power supply anywhere in the world. 

We can also provide the shore to ship converters and the on board shore power converters with DC output and special versions with 400Hz input for certain types of Naval vessels.

The “SHORE POWER” on board frequency converters provide a galvanic isolation between city grid power pick up point and the on board vessel power distribution network.    
We can also supply the SHORE POWER frequency converters with input and output cable, cable stowage, reeling systems and distribution systems for the fixed shore to ship power converters.

Our “SHORE POWER” frequency converters have distinct advantages:

• Little audible noise
• No vibration
• Maintenance inspection once a year
• Simple fault diagnostics
• Repairs can be made quickly by the user
• No mechanical parts to wear out
• 20 years design life
• Isolation from external power disturbances.
• No combustion smells
• No fuel to spill
• No smoke
• No pollution
• No harmful emissions
• No fuel storage

Keywords: 50Hz to 60Hz frequency converters, 60Hz to 50Hz frequency converters, Frequency Converters, Marine, On board ship fequency converters, Shore to ship power systems,

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