BATTERY CUTTER WITH CURRENT MEASURING MEANS IN ITS ENTRY TERMINAL AND METHODS OF MEASURING THE CURRENT AND THE STATUS OF THE CIRCUIT BREAKER

摘要

The present invention relates to a circuit breaker (1) comprising an electrical input terminal (100) intended to be connected to an accumulator battery, an electrical output terminal (200), contact means (3) adapted to closing or opening the electrical contact between the two electrical input and output terminals, and means for measuring the current flowing in the electrical input terminal. According to the invention, the current measuring means comprise, on the one hand, means for measuring the voltage between two measurement points of the electrical input terminal and means for calculating the intensity of the current from said voltage, and, on the other hand, an electrical circuit comprising in series a switch and a resistor of known value, said electrical circuit being connected on one side to one of said measuring points whose potential is measured by the voltage measuring means and on the other to a known potential point .