Some aspects of aircraft electrical component dependability

Abstract

This paper deals with operating conditions of aircraft electrical components and shows what effect these conditions have on the dependability of particular components and systems. Two aviation incidents are described and their reasons and results are presented. The mechanical design of a difference minimal relay DMR-400 and its influence on a power electrical system of Aero L-39C Albatros aircraft and L-159A Alca aircraft is also described. The DMR-400 is used as a main contactor of the DC generator and the main DC bus.