SYSTEM FOR COMMUNICATION OF DATA VIA AN ELECTRICAL NETWORK TO A THREE-PHASE INDUCTION MOTOR USED IN THE ARTIFICIAL LIFTING METHOD OF SUBMERGED CENTRIFUGAL PUMPING TYPE

摘要

The system of the present invention comprises two modules: the subsurface module - the signal transmitter - and the surface module - the signal acquisition module. The subsurface module is composed of a PLC transmitter circuit and an electrical coupling circuit. The purpose of this module is to obtain information from analogue sensors of the electric motor, carrying out analogue/digital conversion and transmitting the encoded data via the defined protocol. The surface module is composed of a PLC receiver circuit, an electrical coupling circuit and an electrical power supply source. The main purpose of this module is to decode the data present in the electrical network in the form of a pulse train. [002]. The system is responsible for the acquisition of the following data: pressure and temperature at the pump intake, internal motor temperature, discharge pressure, vibration signal and insulating oil contamination signal, with a view to preventing the burning-out of the three-phase induction motor used in the artificial lifting method of the submerged centrifugal pumping type.