Device for measuring current in e.g. motor car, has separate power supply having feeding terminals that are connected with electric line, so that current in electric line is measured with signal current from separate power supply

摘要

The device has a computing unit (12) with measuring terminals (8,9) that are connected with an electric line of motor car. An electric resistor (6) is provided between the measuring terminals. Feeding terminals (2,3) of separate power supply (1) are connected with the electric line, so that the current in the electric line is measured with a signal current (4) from the separate power supply. The measuring terminals of computing unit are connected with a measuring resistor of power supply. An independent claim is included for a method for measuring current in motor car.