COMPUTERIZED SYSTEM FOR POWER SUPPLY AND INTEGRATED SAFETY PROTECTION MEANT FOR POWER STATIONS

摘要

The invention relates to a computerized system for power supply and integrated safety protection meant to supply with D.C. and A.C. voltages the auxiliary services in the electricity transport and distribution stations. According to the invention, the system comprises two rectifiers (1 and 2) which are carried out with a system for controlling the power factor, with the voltage output insulated in relation to the input, being supplied in common mode from an A.C. supplying network, the two rectifiers (1 and 2) being connected in parallel by two diodes (3 and 4) for simultaneously supplying a storage battery (9) by means of a D.C. interrupter (10), a D.C.-D.C. converter (14) and an inverter (16) through which there is furnished D.C. energy and A.C. energy, respectively, to consumers (15 and 17), the output voltages and currents of the rectifiers (1 and 2) being measured by a transducer (5 and 7) for measuring the voltage and a transducer (6 and 8) for measuring the current, and the voltage and current supplied to D.C.-D.C. converter (14) and inverter (16) being measured by a voltage measuring transducer (18) and a current measuring transducer (19), all the analogous values generated by the voltage transducers (5, 7, 11 and 18) and current transducers (6, 8, 12 and 19) and also the value of the environment temperature furnished by a temperature transducer (20) being measured by a digital system (21) of command acquisition and generation which is interconnected with a digital system (22) for controlling the battery charging rate and with a monitoring system (23) connected to a local operating panel (24) and a communication system (25).