| 摘要 |
<p>The invention relates to an electronic circuit breaker for cutting out the supply voltage when sensing an earth leakage current higher than an imposed limit in order to protect individuals against electrocution and fires. According to the invention, the circuit breaker comprises a micro-controller (4) which determines the difference between the two currents passing through two Hall transducers (2 and 3) and, depending on the difference value, commands the switching in of a relay (7) by means of an amplifier (6), condition in which a load (5) is supplied, or, if the difference exceeds a certain value, the circuit breaker cancels the switching in of the relay (7) and the voltage is cut off.</p> |
