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Navy Cold-Ironing Requirements
Rotary Frequency Selection

> Shore-Port-to-Ship Power Converters

Navy Ships

The Navy has been using cold-ironing  for several decades and has plugged into port seaside power all over the world. The ships are also hooked up to water, sewer, communication systems and steam while docked at their port destinations. The Navy has developed a unique electrical cable connection system to avoid compatibility issues with different ports of call.

Power cables are stored on the docks at the Naval stations around the world. On either end of the power cables, there are pigtails of three separate cables that end in metal connection plates. Plugs with similar pigtail connectors and cables are carried on the Navy ships and stored near the transformer/substations on the docks at the Naval stations. When a ship docks, a crane lifts the power cables onto the ship. Then the Navy personnel bolt the power cable pigtails to the plug pigtails stored onboard. The power cable pigtails are bolted to the plug pigtails stored near the substation. Having to attach plugs to power cables every time a ship cold-irons does make this more labor-intensive, but it does eliminate the problem with compatibility issues for power hock-ups with different ports of call.  Also, the Navy has ship auxiliary generators to avoid blackouts.  It takes about 50 to 90 minutes after the ship is docked for personnel to connect the ship to electrical and other utility needs.


Photo courtesy of ESL Power Systems, Inc

With the Navy Cold-Iron Systems, some ports need shore-port-to-ship converters.  Like the navy, most ships would benefit economically by using TEMCo-Shore-Port-to-Ship Converters.

A TEMCo Shore-Port-to-Ship Power Converter is a unique frequency converter that performs multiple functions. It provides the possibility to connect to any shore power connection anywhere in the world ranging from 25 kVA to over 400 kVA. Supplying power is only half of what this converter does, it also stabilizes and offers power factor correction.


About TEMCo
TEMCo has many years of experience.  They manufacture and develop industrial power solutions and are dedicated to using the highest quality materials.  TEMCo has a staff of highly trained engineers that can design your equipment to meet any of your application requirements, and they provide the latest and best technology the industry has to offer.

TEMCo has had extensive experience manufacturing electrical power products since 1968.

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