Patent EP-3516934-A1 (EP)
Inventor: MARIANI ADRIANA
IPC: H02J3/00
Filed: 2017-09-19
Abstract: The present invention relates to a lighting system configured to supply power to at least one power supply unit capable of supplying power to electronic devices or systems. Said lighting system comprises: - one or more first street lamps (L- 1 , L 1´ ), each of which comprises a first pole (Ρ 1 ,Ρ 1´ ) and a first illuminating body (LB- 1 ,   LB- 1´ ), - a master switch (IG), - a three-phase power supply network for supplying said one or more first street lamps (L 1 , L 1´ ), comprising at least one first power supply line (N; F1), a second power supply line (F1; F2) and a third power supply line (F2; F3), where said first power supply line (N; F1) and said second power supply line (F1; F2) are connected to said master switch (IG) in such a way that, when said master switch (IG) is activated, said first power supply line (N; F1) and said second power supply line (F1; F2) are always active, so that a first voltage is always present between said first power supply line (N; F1) and said second power supply line (F1; F2); - a contactor (CL), connected to said three-phase power supply network, by means of said master switch (IG), and comprising at least one switch (S1, S2, S3) to open/close said third power supply line (F2; F3); where said contactor (CL) is configured to open and close said at least one switch, so as to respectively move from an open state, in which it interrupts the flow of electric current from said three-phase power supply network towards each first illuminating body (LB 1 ,   LB 1´ ), to a closed state, in which it allows the flow of electric current from said three-phase power supply network towards each first illuminating body (LB 1 ,   LB 1´ ), and vice versa; - a control device (AC) configured to control the opening and closing of said at least one switch (S1,S2,S3) of said contactor (CL) depending on a intensity of solar radiation and/or at a predetermined time; - at least one power supply unit (A) to supply power to electronic devices or systems, - one or more relays (R 1 ), each of which is connected in series to a respective first illuminating body (LB 1 , LB 1´ ) and is configured to switch from an open state, in which each of said relays interrupts the flow of electric current from said three-phase power supply network towards the respective first illuminating body (LB 1 , LB 1´ ), to a closed state, in which each of said relays allows the flow of electric current from said three-phase power supply network towards the respective illuminating body (LB 1 , LB 1´ ), and vice versa; - one or more control elements (MC 1 ), each of which is configured to control the opening and closing of a respective relay (R 1 ). In particular, said at least one power supply unit (A) is connected to said first power supply line (N; F1) and to said second power supply line (F1; F2), each relay (R 1 ) is connected in series to said second power supply line (F1; F2) or to said first power supply line (N; F1), and each control element (MC 1 ) is connected to said first power supply line (N; F1) and to said third power supply line (F2; F3) or to said second power supply line (F1; F2) and to said third power supply line (F2; F3) and is configured to control the closing of the respective relay (R1), when a second voltage is present between said first power supply line (N; F1) and said third power supply line (F2; F3) or between said second power supply line (F1; F2) and said third power supply line (F2; F3).