CIRCUIT ARRANGEMENT FOR DETERMINING THE DISTANCE OF FAULT LOCATIONS IN LINE SHORT-CIRCUITS

摘要

In a circuit arrangement for determining the distance of the fault location during short-circuits on a line, an analog measuring data transmitter used for obtaining a direct voltage which is proportional to the line voltage and another analog measuring data transmitter which is influenced by the line current used to obtain another DC voltage proportional to the line current, are connected to the input of a voltage-frequency converter connected to a device for digital division or quotient formation. The device has a control circuit which, upon the occurrence of a short-circuit, initiates the measurement or determination of the distance of the fault location, in response to an initiating signal.