Electrical Power

 
Based on a modular concept of functional blocks and boxes, SELEX Galileo electrical power systems are tailored to Customer requirements. Over 200 units for electrical power regulation and distribution applications have been deployed on Space programmes such as Ariane, Giotto, Soho, Cluster, Artemis, METOP, ATV, VEGA, Sicral 1 & 1B, COSMO SkyMed, Lisa Pathfinder (FEEP), GAIA and Sentinel 1.
 
The power equipment is designed and manufactured for different applications (GEO, LEO, Deep Space missions), ranging from Watts to Kilowatts (and from Volts up to Kilovolts) with different topologies and power conversion technologies, both for platforms and payloads.

EPC  The EPC is an Electronic Power Conditioning unit specifically designed to supply Travelling Wave Tube (TWT) Amplifiers, with the required regulated high voltage lines. The EPC is space qualified covering the range up to 7.5 KV and 250 W. The electrical design is based on state-of-the-art solutions, specifically developed in order to ensure the maximum conversion efficiency with minimum mass.

PDU  The PDU (Pyro Drive Unit) provides the commanding and supply functions to pyrotechnic electro-explosive devices for the release of the deployable appendices of satellites including solar array, antenna, instrument boom, and cover lids.

MRU  The MRU (Main bus Regulator Unit) is the electronic equipment providing conditioning of the satellite's on-board energy sources (solar generator and batteries), voltage regulation of the satellite main bus, protection and distribution of the main bus lines to the satellite users.