Marine Defence

Specialists in the field of naval power conversion and distribution, we have our equipment in service on virtually all of the Royal Navy’s submarine and surface fleet.

The chosen supplier for Converted supplies and UPSs for the Royal Navy’s AAW Destroyer the Type 45. We are fully represented on the Queen Elizabeth Class aircraft carriers and Type 26 destroyer.

We have built up a strong export business and our equipment is deployed worldwide from Australia to Malaysia, from Oman to Spain, Turkey and Japan.

We have supplied DC and Helicopter start systems to Australia’s Hobart Class destroyers. UPSs and Battery Chargers for MARS tankers built by Daewoo (DSME) in Korea for the Royal Fleet Auxiliary. Our designs support a number of current European warship programmes including the S-80 submarines built by Navantia at Cartagena in Spain and DCN’s Scorpene Class submarines.

In the normal course of events electrical supply is 115V AC or 440V 3phase generated internally and distributed throughout the vessel. This will support basic functions such as entertainment and domestic lighting through to Command and Control and weapons systems. A recurring theme in our equipment is support of electrical power in emergencies (such as the loss of main ship’s power) and the need to convert that original AC supply either to a higher frequency or to DC.

Our products are ruggedised to meet high levels of shock and vibration, engineered to be fully compatible with ship and submarine electrical systems and are built from the ground up for deployment. Many equipment have been successfully tested to Mil-Std and Def-Stan tests for shock, vibration and EMC.

Below are some product data sheets examples that illustrate the broad range of specifications and applications.

Talk to us and we will be able to assist, call +44 (0)1722 413 060 or, if you prefer get in touch with our Sales Team.

Product Datasheets

Support Equipment

In addition to these main systems Gresham manufactures a wide range of individual support equipment including:

  • Through bulkhead Filter Boxes
  • Weapons Panels
  • Ship to Shore Supply Boxes
  • Inverters

Global Naval Supply Programs