Patent ID: 8937795
Filing Date: 2015-01-20
Classification: H01H,H02H

Abstract:
1. A power and control unit for low and medium voltage applications operatively couplable to circuit elements of a low or medium voltage apparatus wherein it comprises an internal self-diagnostic circuit element operatively coupled to a signal-generating circuit element, and a binary input operatively coupled to said internal self-diagnostic circuit element, said power and control unit further comprising a low-impedance variable load connectable in parallel to said binary input, said binary input comprising a control circuit element operatively connected to said low-impedance variable load and also operatively connected, through a signal-detecting circuit element, to said internal self-diagnostic circuit element and to said one or more circuit elements of said low or medium voltage apparatus; wherein said control circuit element comprises a low-impedance feedback and pulse generator which drives said low-impedance variable load.