Military

DC-Power Supply for Submarines

The shore power rectifiers have been especially developed for the supply of conventional diesel-powered submarines. With these microprocessor-controlled rectifiers it is possible to provide conventional submarines with DC power from the onshore power supply. A low DC current ripple and rapid dynamic behavior ensure that the submarine’s sensitive electronics do not sustain any damage.

SINGLE-CELL TREATMENT UNIT

With periodical necessary gas charge of a back-up battery or formatting of cell elements of a drive battery can be performed. Here the necessary discharge of battery cells with constant current occurs automatically. For this purpose, all battery specific characteristics can be variably programmed. Up to three single cells can be discharged and charged with the single- cell treatment unit. Battery cells, which have lost or can no longer reach their capacity, can be regenerated with this device. Via integrated digitized monitoring electronics fully automatic charge and discharge cycles can be programmed and stored. Due to the automatic mode the implementation of these programs can be performed without monitoring operating personnel.

The shore power rectifiers are customized according to the customers’ requests.

• SIMPLE OPERATION, HIGH SECURITY All operating elements of systems are mounted at the front without overlap. An acrylic glass panel prevents access of unauthorized persons. Load increments of 1kW increments can be selected. All load steps are secured in case of a fan fault the load steps are switched off.

• FOR DC OR AC The load banks are designed for DC, but can, however, be used with AC up to a voltage of 72 V. The mobile load banks are suitable for e.g. generators operated rarely or only with minor load, for stress tests of emergency systems without load function or for error tracing and commissioning of generators.

• STANDARD OR SPECIAL DESIGN In addition to our standard versions, we address special customers’ requirements with customized solutions. The systems are coated in grey /red. We will gladly offer, however, special colors, engraved company names or special technical features. With an optionally available integrated multifunctional device voltages between phases, between phases and neutral, current per phase, frequency, effective power per phase or all minimum and maximum values can be monitored.

• AVOIDANCE OF POLLUTION PROBLEMS All over the globe there are diverse mains voltages and frequencies. Owners of yachts are particularly affected by this problem whilst port lay days. An on-board electrical system designed for the European standards cannot be connected to the grid in the USA and vice versa. This in-compatibility of on-board and port (local) networks means that even in port the yacht must be supplied by the on-board generator – a loud and expensive necessity causing pollution problems and particle discharge as well as noise and vibration. The shore power converter automatically adjusts the onshore grid to the on-board system and allows a seamless transfer to the shore connection.

• STATE OF THE ART IGBT TECHNOLOGY The power converter is designed as a static converter using state of the art IGBT technology. Its input contains a rectifier system, which automatically detects the onshore mains voltage and frequency and adjusts the transformer to those conditions. The rectifier supplies the IGBT inverter, which turns the DC- voltage into a three-phase network with low distortion factor. The consumer on board receives a high-quality, fault-free power supply. The double power conversion blocks out any faults from the shore network. A battery buffer to increase the supply stability is available as an option. Systems with a redundant or cascade design can also be supplied. We offer shore power converters type as an onboard solution or as 20- or 40-feet container system for port side installation. The power range starts from 60 kVA up to 1.5 MW.

• CLOSED CELL SILICONE SPONGE EXTRUSION PRODUCTS Silicones extruded closed cell silicone sponge profiles are used when difficult sealing problems require a combination of complex gasket shapes and extreme flexibility. Our full in-house die making capabilities allow us to produce cords, rectangles, tubes, and any other complex geometries. Our in-house mixing provides a choice of materials with a wide compression deflection rating, ranging from ASTM D 1056 2D1 soft density to ASTM D 1056 2D5 extra firm density. The self-forming skin enhances the profile’s water absorption resistance. Need to meet a BMS requirement? No problem! Silicones is a certified supplier of BMS 1-23 and BMS 1-60 products. We offer a flame-retardant version in each density range that will make sealing possible in extreme environments. A fully approved NSF 51 version produced with FDA ingredients is also available, in applications where FDA compliance is required. Our Silicones extruded closed cell silicone sponge profiles are available in any color to aide to the aesthetics of your assembly.

• SILICONE CLOSED CELL SILICONE SPONGE MOLDED PRODUCTS MGEC offers a material selection with a wide compression deflection rating, from ASTM D 1056 2D1 soft density to ASTM D 1056 2D5 extra firm density, and a temperature range of -85° to 400°F for continuous use. The self-forming skin enhances product resistance to water absorption and protects from contaminants. We are a certified supplier of BMS 1-23 and BMS 1-60 molded products. We offer a flame-retardant version in each density range that will make sealing possible in extreme environments. A fully certified NSF/ANSI 51 version produced from FDA ingredients is available for applications requiring FDA compliance. Available in any color.

• Custom molding and compounding processes allow us to produce aircraft window seals that can withstand both runway and in-flight temperature extremes, with materials that exceed BMS requirements. The strategic embedding of fabrics within our flex-resistant silicone adds strength and prevents stretching. Our other military specifications and custom compounds can yield open or closed cell construction. From highly engineered gaskets to flame-retardant components to simple squeak and rattle sponge, we can do it all. Our in-house §mixing capabilities allow us to produce materials to all five hardness ranges of ASTM D1056. For aerospace requirements, Elastomers is on the qualified products list for Boeing BMS 1-23, and all three hardness’s of BMS 1-60. We can produce product with a compression set value of 10% and in a variety of colors.