PROBLEM TO BE SOLVED: To provide an analyzer capable of properly determining a constitution having large influence on cost of an electric power supply facility among the electric power supply facility provided in a catenary-based transportation system so as to become target cost or less of the electric power supply facility.SOLUTION: The catenary-based transportation system includes an integrated electric power supply facility having a capacitor unit for storing regenerative electric power of a vehicle of traveling by receiving supply of catenary electric power and supplying the electric power to catenary and the other electric power supply system being a supply system of the electric power different from the capacitor unit. Performance of a rectifier of the other electric power supply system such as a cost value of the integrated electric power supply facility is less than a target cost value, is determined based on the electric power supply sharing ratio of the other electric power supply system.
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