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Technical Paper

Design and Performance of a 140 KVA, 3 Phase, 230 VAC, Variable Frequency, Solid State Power Controller

This paper describes the design and testing of a three phase, 200 Amp. per phase, AC power controller intended to replace electromechanical bus tie and cross tie contactors in commercial aircraft electric power systems. In order to design an effective overall electric power system, both the primary transmission subsystem and the secondary distribution subsystem must operate together, controlling the flow of power in a seamless fashion. This is not possible using electromechanical contactors in the primary subsystem.