DEVICE AND METHOD FOR THE EXTENDED PROTECTION OF ELECTRIC LINES

摘要

Device for the protection of electric lines which comprises: processing mean s; power supply means; voltage measurement means; means of alert; and switching means which alternatively send the line's own current through a main branch (which comprises the remaining components) or through a branch line; and method for the protection of electric lines by means of the device in accordance with the invention, which comprises: normal operating mode - safe ty element in perfect condition and inactive protection device; boundary anomalous operating mode - the intensity circulating through the safety element surpasses a caution threshold and the protection device signals said condition; and line verification anomalous operating mode - after failure of the safety element, all the current flows through the protection device and the protection device detects, signals, and analyses said condition.